From 4e38b745af76cdd93bca33258e1e33a23458f92c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 31 Oct 2012 16:07:43 +0800 Subject: ASoC: si476x: Add missing break for SNDRV_PCM_FORMAT_S8 switch case Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c index f2d61a1..566ea32 100644 --- a/sound/soc/codecs/si476x.c +++ b/sound/soc/codecs/si476x.c @@ -159,6 +159,7 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream, switch (params_format(params)) { case SNDRV_PCM_FORMAT_S8: width = SI476X_PCM_FORMAT_S8; + break; case SNDRV_PCM_FORMAT_S16_LE: width = SI476X_PCM_FORMAT_S16_LE; break; -- cgit v0.10.2 From 75da01e127f7db3b23effa6118336d303e7572a7 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 31 Jan 2013 11:25:52 +0000 Subject: ARM: KVM: vgic: force EOIed LRs to the empty state The VGIC doesn't guarantee that an EOIed LR that has been configured to generate a maintenance interrupt will appear as empty. While the code recovers from this situation, it is better to clean the LR and flag it as empty so it can be quickly recycled. Signed-off-by: Marc Zyngier diff --git a/arch/arm/kvm/vgic.c b/arch/arm/kvm/vgic.c index c9a1731..76ea1aa 100644 --- a/arch/arm/kvm/vgic.c +++ b/arch/arm/kvm/vgic.c @@ -883,8 +883,7 @@ static bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq) lr, irq, vgic_cpu->vgic_lr[lr]); BUG_ON(!test_bit(lr, vgic_cpu->lr_used)); vgic_cpu->vgic_lr[lr] |= GICH_LR_PENDING_BIT; - - goto out; + return true; } /* Try to use another LR for this interrupt */ @@ -898,7 +897,6 @@ static bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq) vgic_cpu->vgic_irq_lr_map[irq] = lr; set_bit(lr, vgic_cpu->lr_used); -out: if (!vgic_irq_is_edge(vcpu, irq)) vgic_cpu->vgic_lr[lr] |= GICH_LR_EOI; @@ -1054,6 +1052,13 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu) } else { vgic_cpu_irq_clear(vcpu, irq); } + + /* + * Despite being EOIed, the LR may not have + * been marked as empty. + */ + set_bit(lr, (unsigned long *)vgic_cpu->vgic_elrsr); + vgic_cpu->vgic_lr[lr] &= ~GICH_LR_ACTIVE_BIT; } } -- cgit v0.10.2 From 33c83cb3c1d84b76c8270abe5487e77f83a81b22 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 1 Feb 2013 18:28:30 +0000 Subject: ARM: KVM: vgic: take distributor lock on sync_hwstate path Now that the maintenance interrupt handling is actually out of the handler itself, the code becomes quite racy as we can get preempted while we process the state. Wrapping this code around the distributor lock ensures that we're not preempted and relatively race-free. Signed-off-by: Marc Zyngier diff --git a/arch/arm/kvm/vgic.c b/arch/arm/kvm/vgic.c index 76ea1aa..0e4cfe1 100644 --- a/arch/arm/kvm/vgic.c +++ b/arch/arm/kvm/vgic.c @@ -1016,21 +1016,6 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu) kvm_debug("MISR = %08x\n", vgic_cpu->vgic_misr); - /* - * We do not need to take the distributor lock here, since the only - * action we perform is clearing the irq_active_bit for an EOIed - * level interrupt. There is a potential race with - * the queuing of an interrupt in __kvm_vgic_flush_hwstate(), where we - * check if the interrupt is already active. Two possibilities: - * - * - The queuing is occurring on the same vcpu: cannot happen, - * as we're already in the context of this vcpu, and - * executing the handler - * - The interrupt has been migrated to another vcpu, and we - * ignore this interrupt for this run. Big deal. It is still - * pending though, and will get considered when this vcpu - * exits. - */ if (vgic_cpu->vgic_misr & GICH_MISR_EOI) { /* * Some level interrupts have been EOIed. Clear their @@ -1069,9 +1054,8 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu) } /* - * Sync back the VGIC state after a guest run. We do not really touch - * the distributor here (the irq_pending_on_cpu bit is safe to set), - * so there is no need for taking its lock. + * Sync back the VGIC state after a guest run. The distributor lock is + * needed so we don't get preempted in the middle of the state processing. */ static void __kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu) { @@ -1117,10 +1101,14 @@ void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu) void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu) { + struct vgic_dist *dist = &vcpu->kvm->arch.vgic; + if (!irqchip_in_kernel(vcpu->kvm)) return; + spin_lock(&dist->lock); __kvm_vgic_sync_hwstate(vcpu); + spin_unlock(&dist->lock); } int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu) -- cgit v0.10.2 From 8af294b472067e9034fe288d912455cc0961d1b9 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 22 Feb 2013 17:48:15 +0000 Subject: ASoC: dapm: Fix handling of loops Currently if a path loops back on itself we correctly skip over it to avoid going into an infinite loop but this causes us to ignore the need to power up the path as we don't count the loop for the purposes of counting inputs and outputs. This means that internal loopbacks within a device that have powered devices on them won't be powered up. Fix this by treating any path that is currently in the process of being recursed as having a single input or output so that it is counted for the purposes of power decisions. Signed-off-by: Mark Brown Acked-by: Liam Girdwood diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index e1ef63d..44a30b1 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -488,6 +488,7 @@ struct snd_soc_dapm_path { /* status */ u32 connect:1; /* source and sink widgets are connected */ u32 walked:1; /* path has been walked */ + u32 walking:1; /* path is in the process of being walked */ u32 weak:1; /* path ignored for power management */ int (*connected)(struct snd_soc_dapm_widget *source, diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 258acad..f325551 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -821,6 +821,7 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) { widget->outputs = snd_soc_dapm_suspend_check(widget); + path->walking = 0; return widget->outputs; } } @@ -831,6 +832,9 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, if (path->weak) continue; + if (path->walking) + return 1; + if (path->walked) continue; @@ -838,6 +842,7 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, if (path->sink && path->connect) { path->walked = 1; + path->walking = 1; /* do we need to add this widget to the list ? */ if (list) { @@ -847,11 +852,14 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, dev_err(widget->dapm->dev, "ASoC: could not add widget %s\n", widget->name); + path->walking = 0; return con; } } con += is_connected_output_ep(path->sink, list); + + path->walking = 0; } } @@ -931,6 +939,9 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, if (path->weak) continue; + if (path->walking) + return 1; + if (path->walked) continue; @@ -938,6 +949,7 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, if (path->source && path->connect) { path->walked = 1; + path->walking = 1; /* do we need to add this widget to the list ? */ if (list) { @@ -947,11 +959,14 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, dev_err(widget->dapm->dev, "ASoC: could not add widget %s\n", widget->name); + path->walking = 0; return con; } } con += is_connected_input_ep(path->source, list); + + path->walking = 0; } } -- cgit v0.10.2 From f4b828128ab64fd9dc5eec9525b38fbfeafa5c0e Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 12 Mar 2013 00:23:15 +0800 Subject: ASoC: wm_adsp: fix possible memory leak in wm_adsp_load_coeff() 'file' is malloced in wm_adsp_load_coeff() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Signed-off-by: Wei Yongjun Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index f3f7e75..9af1bdd 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -828,7 +828,8 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp) &buf_list); if (!buf) { adsp_err(dsp, "Out of memory\n"); - return -ENOMEM; + ret = -ENOMEM; + goto out_fw; } adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n", @@ -865,7 +866,7 @@ out_fw: wm_adsp_buf_free(&buf_list); out: kfree(file); - return 0; + return ret; } int wm_adsp1_init(struct wm_adsp *adsp) -- cgit v0.10.2 From e8b18addee32d1f389573b4c116e67ae230216ad Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 12 Mar 2013 00:35:14 +0800 Subject: ASoC: core: fix possible memory leak in snd_soc_bytes_put() 'data' is malloced in snd_soc_bytes_put() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Signed-off-by: Wei Yongjun Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index b7e84a7..93341de 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3140,7 +3140,7 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, if (params->mask) { ret = regmap_read(codec->control_data, params->base, &val); if (ret != 0) - return ret; + goto out; val &= params->mask; @@ -3158,13 +3158,15 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, ((u32 *)data)[0] |= cpu_to_be32(val); break; default: - return -EINVAL; + ret = -EINVAL; + goto out; } } ret = regmap_raw_write(codec->control_data, params->base, data, len); +out: kfree(data); return ret; -- cgit v0.10.2 From b6e51600f4e983e757b1b6942becaa1ae7d82e67 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Sun, 10 Mar 2013 19:33:03 +0100 Subject: ASoC: imx-ssi: Fix occasional AC97 reset failure Signed-off-by: Sascha Hauer Signed-off-by: Markus Pargmann Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c index 55464a5..810c7ee 100644 --- a/sound/soc/fsl/imx-ssi.c +++ b/sound/soc/fsl/imx-ssi.c @@ -496,6 +496,8 @@ static void imx_ssi_ac97_reset(struct snd_ac97 *ac97) if (imx_ssi->ac97_reset) imx_ssi->ac97_reset(ac97); + /* First read sometimes fails, do a dummy read */ + imx_ssi_ac97_read(ac97, 0); } static void imx_ssi_ac97_warm_reset(struct snd_ac97 *ac97) @@ -504,6 +506,9 @@ static void imx_ssi_ac97_warm_reset(struct snd_ac97 *ac97) if (imx_ssi->ac97_warm_reset) imx_ssi->ac97_warm_reset(ac97); + + /* First read sometimes fails, do a dummy read */ + imx_ssi_ac97_read(ac97, 0); } struct snd_ac97_bus_ops soc_ac97_ops = { -- cgit v0.10.2 From 34913fd950dc1817d466d76bdccd63443fdcbb12 Mon Sep 17 00:00:00 2001 From: Markus Pargmann Date: Sun, 10 Mar 2013 19:33:06 +0100 Subject: ASoC: pcm030 audio fabric: remove __init from probe Remove probe function from the init section. Signed-off-by: Markus Pargmann Signed-off-by: Mark Brown diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c index 8e52c14..eb43738 100644 --- a/sound/soc/fsl/pcm030-audio-fabric.c +++ b/sound/soc/fsl/pcm030-audio-fabric.c @@ -51,7 +51,7 @@ static struct snd_soc_card pcm030_card = { .num_links = ARRAY_SIZE(pcm030_fabric_dai), }; -static int __init pcm030_fabric_probe(struct platform_device *op) +static int pcm030_fabric_probe(struct platform_device *op) { struct device_node *np = op->dev.of_node; struct device_node *platform_np; -- cgit v0.10.2 From d558c4733759e077cf449246983a5d1fe97fc434 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Fri, 8 Mar 2013 11:51:19 +0530 Subject: spi: slink-tegra20: move runtime pm calls to transfer_one_message The prepare_transfer_hardware() is called in atomic context and calling synchronous runtime pm calls can create scheduling deadlock. Therefore, in place of calling runtime PM calls from prepare/unprepare message transfer, calling this in transfer_one_message(). Signed-off-by: Laxman Dewangan Tested-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index b8698b3..a829563 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -858,21 +858,6 @@ static int tegra_slink_setup(struct spi_device *spi) return 0; } -static int tegra_slink_prepare_transfer(struct spi_master *master) -{ - struct tegra_slink_data *tspi = spi_master_get_devdata(master); - - return pm_runtime_get_sync(tspi->dev); -} - -static int tegra_slink_unprepare_transfer(struct spi_master *master) -{ - struct tegra_slink_data *tspi = spi_master_get_devdata(master); - - pm_runtime_put(tspi->dev); - return 0; -} - static int tegra_slink_transfer_one_message(struct spi_master *master, struct spi_message *msg) { @@ -885,6 +870,12 @@ static int tegra_slink_transfer_one_message(struct spi_master *master, msg->status = 0; msg->actual_length = 0; + ret = pm_runtime_get_sync(tspi->dev); + if (ret < 0) { + dev_err(tspi->dev, "runtime get failed: %d\n", ret); + goto done; + } + single_xfer = list_is_singular(&msg->transfers); list_for_each_entry(xfer, &msg->transfers, transfer_list) { INIT_COMPLETION(tspi->xfer_completion); @@ -921,6 +912,8 @@ static int tegra_slink_transfer_one_message(struct spi_master *master, exit: tegra_slink_writel(tspi, tspi->def_command_reg, SLINK_COMMAND); tegra_slink_writel(tspi, tspi->def_command2_reg, SLINK_COMMAND2); + pm_runtime_put(tspi->dev); +done: msg->status = ret; spi_finalize_current_message(master); return ret; @@ -1148,9 +1141,7 @@ static int tegra_slink_probe(struct platform_device *pdev) /* the spi->mode bits understood by this driver: */ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; master->setup = tegra_slink_setup; - master->prepare_transfer_hardware = tegra_slink_prepare_transfer; master->transfer_one_message = tegra_slink_transfer_one_message; - master->unprepare_transfer_hardware = tegra_slink_unprepare_transfer; master->num_chipselect = MAX_CHIP_SELECT; master->bus_num = -1; -- cgit v0.10.2 From 4a25b680b1e84cf97c740c8005e2c6655d6cfa7f Mon Sep 17 00:00:00 2001 From: Kevin Cernekee Date: Tue, 12 Mar 2013 00:13:36 +0100 Subject: spi/bcm63xx: Remove unused variable This fixes the following warning: drivers/spi/spi-bcm63xx.c: In function 'bcm63xx_spi_setup': drivers/spi/spi-bcm63xx.c:157:6: warning: unused variable 'ret' Signed-off-by: Kevin Cernekee Acked-by: Florian Fainelli Signed-off-by: Mark Brown diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 9578af7..0415a32 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -152,7 +152,6 @@ static void bcm63xx_spi_setup_transfer(struct spi_device *spi, static int bcm63xx_spi_setup(struct spi_device *spi) { struct bcm63xx_spi *bs; - int ret; bs = spi_master_get_devdata(spi->master); -- cgit v0.10.2 From b435ff212e91bddc2d12e6638a4d846d5f60daa6 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Tue, 12 Mar 2013 00:13:37 +0100 Subject: spi/bcm63xx: don't disable non enabled clocks in probe error path When msg_ctl_width is set to an invalid value we try to disable the clock despite it never being enabled. Fix it by jumping to the correct label. Signed-off-by: Jonas Gorski Acked-by: Florian Fainelli Signed-off-by: Mark Brown diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 0415a32..d7df435 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -489,7 +489,7 @@ static int bcm63xx_spi_probe(struct platform_device *pdev) default: dev_err(dev, "unsupported MSG_CTL width: %d\n", bs->msg_ctl_width); - goto out_clk_disable; + goto out_err; } /* Initialize hardware */ -- cgit v0.10.2 From 67e753ca41782913d805ff4a8a2b0f60b26b7915 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Thu, 14 Mar 2013 10:49:23 +0200 Subject: UBIFS: make space fixup work in the remount case The UBIFS space fixup is a useful feature which allows to fixup the "broken" flash space at the time of the first mount. The "broken" space is usually the result of using a "dumb" industrial flasher which is not able to skip empty NAND pages and just writes all 0xFFs to the empty space, which has grave side-effects for UBIFS when UBIFS trise to write useful data to those empty pages. The fix-up feature works roughly like this: 1. mkfs.ubifs sets the fixup flag in UBIFS superblock when creating the image (see -F option) 2. when the file-system is mounted for the first time, UBIFS notices the fixup flag and re-writes the entire media atomically, which may take really a lot of time. 3. UBIFS clears the fixup flag in the superblock. This works fine when the file system is mounted R/W for the very first time. But it did not really work in the case when we first mount the file-system R/O, and then re-mount R/W. The reason was that we started the fixup procedure too late, which we cannot really do because we have to fixup the space before it starts being used. Signed-off-by: Artem Bityutskiy Reported-by: Mark Jackson Cc: stable@vger.kernel.org # 3.0+ diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index ac838b8..f21acf0 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1568,6 +1568,12 @@ static int ubifs_remount_rw(struct ubifs_info *c) c->remounting_rw = 1; c->ro_mount = 0; + if (c->space_fixup) { + err = ubifs_fixup_free_space(c); + if (err) + return err; + } + err = check_free_space(c); if (err) goto out; @@ -1684,12 +1690,6 @@ static int ubifs_remount_rw(struct ubifs_info *c) err = dbg_check_space_info(c); } - if (c->space_fixup) { - err = ubifs_fixup_free_space(c); - if (err) - goto out; - } - mutex_unlock(&c->umount_mutex); return err; -- cgit v0.10.2 From 7f08a89862b96d84c6dfe6c242eb010084e51d3b Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 14 Mar 2013 21:26:24 +0100 Subject: ASoC: dapm: Fix pointer dereference in is_connected_output_ep() *path is not yet initialized when we check if the widget is connected. The compiler also warns about this: sound/soc/soc-dapm.c: In function 'is_connected_output_ep': sound/soc/soc-dapm.c:824:18: warning: 'path' may be used uninitialized in this function Signed-off-by: Peter Ujfalusi Signed-off-by: Mark Brown diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index f325551..ab621b1 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -821,7 +821,6 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) { widget->outputs = snd_soc_dapm_suspend_check(widget); - path->walking = 0; return widget->outputs; } } -- cgit v0.10.2 From 4480764f57ba494e3f64003e13223c0b5ec6a2ca Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 19 Mar 2013 14:58:43 -0700 Subject: ASoC:: max98090: Remove executable bit Source files shouldn't have the executable bit set. Signed-off-by: Joe Perches Signed-off-by: Mark Brown diff --git a/include/sound/max98090.h b/include/sound/max98090.h old mode 100755 new mode 100644 diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c old mode 100755 new mode 100644 diff --git a/sound/soc/codecs/max98090.h b/sound/soc/codecs/max98090.h old mode 100755 new mode 100644 -- cgit v0.10.2 From 59d9cc2a5073ab4b8c8f8bdbacf230a538abc55d Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 18 Mar 2013 18:57:23 +0100 Subject: ASoC: spear_pcm: Update to new pcm_new() API Commit 552d1ef6 ("ASoC: core - Optimise and refactor pcm_new() to pass only rtd") updated the pcm_new() callback to take the rtd as the only parameter. The spear PCM driver (which was merged much later) still uses the old API. This patch updates the driver to the new API. Signed-off-by: Lars-Peter Clausen Acked-by: Rajeev Kumar Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c index 9b76cc5..5e7aebe 100644 --- a/sound/soc/spear/spear_pcm.c +++ b/sound/soc/spear/spear_pcm.c @@ -149,9 +149,9 @@ static void spear_pcm_free(struct snd_pcm *pcm) static u64 spear_pcm_dmamask = DMA_BIT_MASK(32); -static int spear_pcm_new(struct snd_card *card, - struct snd_soc_dai *dai, struct snd_pcm *pcm) +static int spear_pcm_new(struct snd_soc_pcm_runtime *rtd) { + struct snd_card *card = rtd->card->snd_card; int ret; if (!card->dev->dma_mask) @@ -159,16 +159,16 @@ static int spear_pcm_new(struct snd_card *card, if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = DMA_BIT_MASK(32); - if (dai->driver->playback.channels_min) { - ret = spear_pcm_preallocate_dma_buffer(pcm, + if (rtd->cpu_dai->driver->playback.channels_min) { + ret = spear_pcm_preallocate_dma_buffer(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, spear_pcm_hardware.buffer_bytes_max); if (ret) return ret; } - if (dai->driver->capture.channels_min) { - ret = spear_pcm_preallocate_dma_buffer(pcm, + if (rtd->cpu_dai->driver->capture.channels_min) { + ret = spear_pcm_preallocate_dma_buffer(rtd->pcm, SNDRV_PCM_STREAM_CAPTURE, spear_pcm_hardware.buffer_bytes_max); if (ret) -- cgit v0.10.2 From f7ba716f1e704a00d682a8697108f9c86497c551 Mon Sep 17 00:00:00 2001 From: Silviu-Mihai Popescu Date: Sat, 16 Mar 2013 13:45:34 +0200 Subject: ASoC: core: fix invalid free of devm_ allocated data The objects allocated by devm_* APIs are managed by devres and are freed when the device is detached. Hence there is no need to use kfree() explicitly. Signed-off-by: Silviu-Mihai Popescu Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 93341de..507d251 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -4199,7 +4199,6 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, dev_err(card->dev, "ASoC: Property '%s' index %d could not be read: %d\n", propname, 2 * i, ret); - kfree(routes); return -EINVAL; } ret = of_property_read_string_index(np, propname, @@ -4208,7 +4207,6 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, dev_err(card->dev, "ASoC: Property '%s' index %d could not be read: %d\n", propname, (2 * i) + 1, ret); - kfree(routes); return -EINVAL; } } -- cgit v0.10.2 From bec964ed3b2549086e1fdfbf7f1ce8c22f89baa4 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Wed, 20 Mar 2013 10:50:50 +0100 Subject: NFC: llcp: Detach socket from process context only when releasing the socket Calling sock_orphan when e.g. the NFC adapter is removed can lead to kernel crashes when e.g. a connection less client is sleeping on the Rx workqueue, waiting for data to show up. Signed-off-by: Samuel Ortiz diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c index b530afa..336813f 100644 --- a/net/nfc/llcp/llcp.c +++ b/net/nfc/llcp/llcp.c @@ -107,8 +107,6 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen, accept_sk->sk_state_change(sk); bh_unlock_sock(accept_sk); - - sock_orphan(accept_sk); } if (listen == true) { @@ -134,8 +132,6 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen, bh_unlock_sock(sk); - sock_orphan(sk); - sk_del_node_init(sk); } @@ -164,8 +160,6 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen, bh_unlock_sock(sk); - sock_orphan(sk); - sk_del_node_init(sk); } diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index 5c7cdf3..e488e44 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -464,8 +464,6 @@ static int llcp_sock_release(struct socket *sock) nfc_llcp_accept_unlink(accept_sk); release_sock(accept_sk); - - sock_orphan(accept_sk); } } -- cgit v0.10.2 From b3155155440190de78fb501953136a6c5b82e327 Mon Sep 17 00:00:00 2001 From: Thierry Escande Date: Wed, 20 Mar 2013 16:00:16 +0100 Subject: NFC: llcp: Remove possible double call to kfree_skb kfree_skb was called twice when the socket receive queue is full Signed-off-by: Thierry Escande Signed-off-by: Samuel Ortiz diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c index 336813f..ee25f25 100644 --- a/net/nfc/llcp/llcp.c +++ b/net/nfc/llcp/llcp.c @@ -821,7 +821,6 @@ static void nfc_llcp_recv_ui(struct nfc_llcp_local *local, skb_get(skb); } else { pr_err("Receive queue is full\n"); - kfree_skb(skb); } nfc_llcp_sock_put(llcp_sock); @@ -1022,7 +1021,6 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local, skb_get(skb); } else { pr_err("Receive queue is full\n"); - kfree_skb(skb); } } -- cgit v0.10.2 From 6c43a519610a5e11af5be707ad88391ce86129ba Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Mar 2013 09:45:22 +0100 Subject: drivers/Kconfig: add several missing GENERIC_HARDIRQS dependencies With this patch an allmodconfig finally builds on s390 again. Fixes these build errors: ERROR: "devm_request_threaded_irq" [drivers/spi/spi-altera.ko] undefined! ERROR: "devm_request_threaded_irq" [drivers/media/platform/sh_veu.ko] undefined! ERROR: "devm_request_threaded_irq" [drivers/dma/dw_dmac.ko] undefined! Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 80b6997..aeaea32 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -83,6 +83,7 @@ config INTEL_IOP_ADMA config DW_DMAC tristate "Synopsys DesignWare AHB DMA support" + depends on GENERIC_HARDIRQS select DMA_ENGINE default y if CPU_AT32AP7000 help diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index 05d7b63..a0639e7 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -204,7 +204,7 @@ config VIDEO_SAMSUNG_EXYNOS_GSC config VIDEO_SH_VEU tristate "SuperH VEU mem2mem video processing driver" - depends on VIDEO_DEV && VIDEO_V4L2 + depends on VIDEO_DEV && VIDEO_V4L2 && GENERIC_HARDIRQS select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV help diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index f80eee7..2be0de9 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -55,6 +55,7 @@ comment "SPI Master Controller Drivers" config SPI_ALTERA tristate "Altera SPI Controller" + depends on GENERIC_HARDIRQS select SPI_BITBANG help This is the driver for the Altera SPI Controller. @@ -310,7 +311,7 @@ config SPI_PXA2XX_DMA config SPI_PXA2XX tristate "PXA2xx SSP SPI master" - depends on ARCH_PXA || PCI || ACPI + depends on (ARCH_PXA || PCI || ACPI) && GENERIC_HARDIRQS select PXA_SSP if ARCH_PXA help This enables using a PXA2xx or Sodaville SSP port as a SPI master -- cgit v0.10.2 From 3bff6038f1938d2541943dfde604a9b92f347650 Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Mon, 18 Mar 2013 16:01:30 +0100 Subject: s390/scm_block: fix printk format string Use hex digits when referring to scm addresses. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c index 5ac9c93..713f018 100644 --- a/drivers/s390/block/scm_blk.c +++ b/drivers/s390/block/scm_blk.c @@ -307,7 +307,7 @@ static void scm_blk_handle_error(struct scm_request *scmrq) case EQC_WR_PROHIBIT: spin_lock_irqsave(&bdev->lock, flags); if (bdev->state != SCM_WR_PROHIBIT) - pr_info("%lu: Write access to the SCM increment is suspended\n", + pr_info("%lx: Write access to the SCM increment is suspended\n", (unsigned long) bdev->scmdev->address); bdev->state = SCM_WR_PROHIBIT; spin_unlock_irqrestore(&bdev->lock, flags); @@ -445,7 +445,7 @@ void scm_blk_set_available(struct scm_blk_dev *bdev) spin_lock_irqsave(&bdev->lock, flags); if (bdev->state == SCM_WR_PROHIBIT) - pr_info("%lu: Write access to the SCM increment is restored\n", + pr_info("%lx: Write access to the SCM increment is restored\n", (unsigned long) bdev->scmdev->address); bdev->state = SCM_OPER; spin_unlock_irqrestore(&bdev->lock, flags); diff --git a/drivers/s390/block/scm_drv.c b/drivers/s390/block/scm_drv.c index 5f6180d..c98cf52 100644 --- a/drivers/s390/block/scm_drv.c +++ b/drivers/s390/block/scm_drv.c @@ -19,7 +19,7 @@ static void scm_notify(struct scm_device *scmdev, enum scm_event event) switch (event) { case SCM_CHANGE: - pr_info("%lu: The capabilities of the SCM increment changed\n", + pr_info("%lx: The capabilities of the SCM increment changed\n", (unsigned long) scmdev->address); SCM_LOG(2, "State changed"); SCM_LOG_STATE(2, scmdev); -- cgit v0.10.2 From 94f9852de86447088e8e3c12d8b5a8f996acee32 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 20 Mar 2013 13:40:54 +0100 Subject: s390/scm_blk: fix error return code in scm_blk_init() Fix to return a negative error code from the error handling case instead of 0, as returned elsewhere in this function. Signed-off-by: Wei Yongjun Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c index 713f018..e9b9c83 100644 --- a/drivers/s390/block/scm_blk.c +++ b/drivers/s390/block/scm_blk.c @@ -463,12 +463,15 @@ static int __init scm_blk_init(void) goto out; scm_major = ret; - if (scm_alloc_rqs(nr_requests)) + ret = scm_alloc_rqs(nr_requests); + if (ret) goto out_unreg; scm_debug = debug_register("scm_log", 16, 1, 16); - if (!scm_debug) + if (!scm_debug) { + ret = -ENOMEM; goto out_free; + } debug_register_view(scm_debug, &debug_hex_ascii_view); debug_set_level(scm_debug, 2); -- cgit v0.10.2 From b7fef2dd7217d9e3f35c948e87297451e55c9709 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 21 Mar 2013 08:24:11 +0100 Subject: s390/uaccess: fix clear_user_pt() The page table walker variant of clear_user() is supposed to copy the contents of the empty zero page to user space. However since 238ec4ef "[S390] zero page cache synonyms" empty_zero_page is not anymore the page itself but contains the pointer to the empty zero pages. Therefore the page table walker variant of clear_user() copied the address of the first empty zero page and afterwards more or less random data to user space instead of clearing the given user space range. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index dff631d..6771fdd 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -197,7 +197,7 @@ size_t copy_to_user_pt(size_t n, void __user *to, const void *from) static size_t clear_user_pt(size_t n, void __user *to) { - void *zpage = &empty_zero_page; + void *zpage = (void *) empty_zero_page; long done, size, ret; done = 0; -- cgit v0.10.2 From 1fcbba3d65dff8ce9d25e644fcc86fa8c629de7d Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Thu, 21 Mar 2013 13:07:18 +0100 Subject: s390/3270: fix minor_start issue The 3270 device nodes 227/0 and 228/0 are special. 227/0 is never used, and 228/0 is used to redirect full screen applications from /dev/3270/tub to the real device node of the 3270 terminal. To keep the device names /dev/3270/tty consistent with the minor number the device driver sets minor_start to 0 and skips minor 0. That makes the tty index equivalent to the minor number. But doing so seems to causes problems with init scripts. A better solution is to set minor_start to the correct value of 1 and set name_base to 1 as well. tty_register_device will then automatically create the correct tty name. Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index b907dba..cee69da 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -915,7 +915,7 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty) int i, rc; /* Check if the tty3270 is already there. */ - view = raw3270_find_view(&tty3270_fn, tty->index); + view = raw3270_find_view(&tty3270_fn, tty->index + RAW3270_FIRSTMINOR); if (!IS_ERR(view)) { tp = container_of(view, struct tty3270, view); tty->driver_data = tp; @@ -927,15 +927,16 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty) tp->inattr = TF_INPUT; return tty_port_install(&tp->port, driver, tty); } - if (tty3270_max_index < tty->index) - tty3270_max_index = tty->index; + if (tty3270_max_index < tty->index + 1) + tty3270_max_index = tty->index + 1; /* Allocate tty3270 structure on first open. */ tp = tty3270_alloc_view(); if (IS_ERR(tp)) return PTR_ERR(tp); - rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index); + rc = raw3270_add_view(&tp->view, &tty3270_fn, + tty->index + RAW3270_FIRSTMINOR); if (rc) { tty3270_free_view(tp); return rc; @@ -1846,12 +1847,12 @@ static const struct tty_operations tty3270_ops = { void tty3270_create_cb(int minor) { - tty_register_device(tty3270_driver, minor, NULL); + tty_register_device(tty3270_driver, minor - RAW3270_FIRSTMINOR, NULL); } void tty3270_destroy_cb(int minor) { - tty_unregister_device(tty3270_driver, minor); + tty_unregister_device(tty3270_driver, minor - RAW3270_FIRSTMINOR); } struct raw3270_notifier tty3270_notifier = @@ -1884,7 +1885,8 @@ static int __init tty3270_init(void) driver->driver_name = "tty3270"; driver->name = "3270/tty"; driver->major = IBM_TTY3270_MAJOR; - driver->minor_start = 0; + driver->minor_start = RAW3270_FIRSTMINOR; + driver->name_base = RAW3270_FIRSTMINOR; driver->type = TTY_DRIVER_TYPE_SYSTEM; driver->subtype = SYSTEM_TYPE_TTY; driver->init_termios = tty_std_termios; -- cgit v0.10.2 From 417a1178f1bf3cdc606376b3ded3a22489fbb3eb Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 15 Mar 2013 11:26:15 +0100 Subject: ASoC: dma-sh7760: Fix compile error The dma-sh7760 currently fails with the following compile error: sound/soc/sh/dma-sh7760.c:346:2: error: unknown field 'pcm_ops' specified in initializer sound/soc/sh/dma-sh7760.c:346:2: warning: initialization from incompatible pointer type sound/soc/sh/dma-sh7760.c:347:2: error: unknown field 'pcm_new' specified in initializer sound/soc/sh/dma-sh7760.c:347:2: warning: initialization makes integer from pointer without a cast sound/soc/sh/dma-sh7760.c:348:2: error: unknown field 'pcm_free' specified in initializer sound/soc/sh/dma-sh7760.c:348:2: warning: initialization from incompatible pointer type sound/soc/sh/dma-sh7760.c: In function 'sh7760_soc_platform_probe': sound/soc/sh/dma-sh7760.c:353:2: warning: passing argument 2 of 'snd_soc_register_platform' from incompatible pointer type include/sound/soc.h:368:5: note: expected 'struct snd_soc_platform_driver *' but argument is of type 'struct snd_soc_platform *' This is due the misnaming of the snd_soc_platform_driver type name and 'ops' field. The issue was introduced in commit f0fba2a("ASoC: multi-component - ASoC Multi-Component Support"). Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/sh/dma-sh7760.c b/sound/soc/sh/dma-sh7760.c index 19eff8f..1a8b03e 100644 --- a/sound/soc/sh/dma-sh7760.c +++ b/sound/soc/sh/dma-sh7760.c @@ -342,8 +342,8 @@ static int camelot_pcm_new(struct snd_soc_pcm_runtime *rtd) return 0; } -static struct snd_soc_platform sh7760_soc_platform = { - .pcm_ops = &camelot_pcm_ops, +static struct snd_soc_platform_driver sh7760_soc_platform = { + .ops = &camelot_pcm_ops, .pcm_new = camelot_pcm_new, .pcm_free = camelot_pcm_free, }; -- cgit v0.10.2 From e651eab0af88aa7a281fe9e8c36c0846552aa7fc Mon Sep 17 00:00:00 2001 From: Sricharan R Date: Mon, 18 Mar 2013 12:24:04 +0100 Subject: ARM: 7677/1: LPAE: Fix mapping in alloc_init_section for unaligned addresses With LPAE enabled, alloc_init_section() does not map the entire address space for unaligned addresses. The issue also reproduced with CMA + LPAE. CMA tries to map 16MB with page granularity mappings during boot. alloc_init_pte() is called and out of 16MB, only 2MB gets mapped and rest remains unaccessible. Because of this OMAP5 boot is broken with CMA + LPAE enabled. Fix the issue by ensuring that the entire addresses are mapped. Signed-off-by: R Sricharan Cc: Catalin Marinas Cc: Christoffer Dall Cc: Santosh Shilimkar Tested-by: Laura Abbott Acked-by: Catalin Marinas Acked-by: Christoffer Dall Signed-off-by: Russell King diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index e95a996..7897894 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -598,39 +598,60 @@ static void __init alloc_init_pte(pmd_t *pmd, unsigned long addr, } while (pte++, addr += PAGE_SIZE, addr != end); } -static void __init alloc_init_section(pud_t *pud, unsigned long addr, - unsigned long end, phys_addr_t phys, - const struct mem_type *type) +static void __init map_init_section(pmd_t *pmd, unsigned long addr, + unsigned long end, phys_addr_t phys, + const struct mem_type *type) { - pmd_t *pmd = pmd_offset(pud, addr); - +#ifndef CONFIG_ARM_LPAE /* - * Try a section mapping - end, addr and phys must all be aligned - * to a section boundary. Note that PMDs refer to the individual - * L1 entries, whereas PGDs refer to a group of L1 entries making - * up one logical pointer to an L2 table. + * In classic MMU format, puds and pmds are folded in to + * the pgds. pmd_offset gives the PGD entry. PGDs refer to a + * group of L1 entries making up one logical pointer to + * an L2 table (2MB), where as PMDs refer to the individual + * L1 entries (1MB). Hence increment to get the correct + * offset for odd 1MB sections. + * (See arch/arm/include/asm/pgtable-2level.h) */ - if (type->prot_sect && ((addr | end | phys) & ~SECTION_MASK) == 0) { - pmd_t *p = pmd; - -#ifndef CONFIG_ARM_LPAE - if (addr & SECTION_SIZE) - pmd++; + if (addr & SECTION_SIZE) + pmd++; #endif + do { + *pmd = __pmd(phys | type->prot_sect); + phys += SECTION_SIZE; + } while (pmd++, addr += SECTION_SIZE, addr != end); - do { - *pmd = __pmd(phys | type->prot_sect); - phys += SECTION_SIZE; - } while (pmd++, addr += SECTION_SIZE, addr != end); + flush_pmd_entry(pmd); +} - flush_pmd_entry(p); - } else { +static void __init alloc_init_pmd(pud_t *pud, unsigned long addr, + unsigned long end, phys_addr_t phys, + const struct mem_type *type) +{ + pmd_t *pmd = pmd_offset(pud, addr); + unsigned long next; + + do { /* - * No need to loop; pte's aren't interested in the - * individual L1 entries. + * With LPAE, we must loop over to map + * all the pmds for the given range. */ - alloc_init_pte(pmd, addr, end, __phys_to_pfn(phys), type); - } + next = pmd_addr_end(addr, end); + + /* + * Try a section mapping - addr, next and phys must all be + * aligned to a section boundary. + */ + if (type->prot_sect && + ((addr | next | phys) & ~SECTION_MASK) == 0) { + map_init_section(pmd, addr, next, phys, type); + } else { + alloc_init_pte(pmd, addr, next, + __phys_to_pfn(phys), type); + } + + phys += next - addr; + + } while (pmd++, addr = next, addr != end); } static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr, @@ -641,7 +662,7 @@ static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr, do { next = pud_addr_end(addr, end); - alloc_init_section(pud, addr, next, phys, type); + alloc_init_pmd(pud, addr, next, phys, type); phys += next - addr; } while (pud++, addr = next, addr != end); } -- cgit v0.10.2 From c40e3641670eb6ebfdb71d4b0c775416ef95f4f0 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 18 Mar 2013 19:44:14 +0100 Subject: ARM: 7679/1: Clear IDIVT hwcap if CONFIG_ARM_THUMB=n Don't advertise support for the SDIV/UDIV thumb instructions if the kernel is not compiled with support for thumb userspace. This is in line with how we remove the THUMB hwcap in these configurations. Acked-by: Will Deacon Cc: Stepan Moskovchenko Signed-off-by: Stephen Boyd Signed-off-by: Russell King diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 3f6cbb2..e2c8bbf 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -484,7 +484,7 @@ static void __init setup_processor(void) list->elf_name, ENDIANNESS); elf_hwcap = list->elf_hwcap; #ifndef CONFIG_ARM_THUMB - elf_hwcap &= ~HWCAP_THUMB; + elf_hwcap &= ~(HWCAP_THUMB | HWCAP_IDIVT); #endif feat_v6_fixup(); -- cgit v0.10.2 From 8164f7af88d9ad3a757bd14f634b23997ee77f6b Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 18 Mar 2013 19:44:15 +0100 Subject: ARM: 7680/1: Detect support for SDIV/UDIV from ISAR0 register The ISAR0 register indicates support for the SDIV and UDIV instructions in both the Thumb and ARM instruction set. Read the register to detect the supported instructions and update the elf_hwcap mask as appropriate. This is better than adding more and more cpuid checks in proc-v7.S for each new cpu variant that supports these instructions. Acked-by: Will Deacon Cc: Stepan Moskovchenko Signed-off-by: Stephen Boyd Signed-off-by: Russell King diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index e2c8bbf..f3ac13f 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -353,6 +353,23 @@ void __init early_print(const char *str, ...) printk("%s", buf); } +static void __init cpuid_init_hwcaps(void) +{ + unsigned int divide_instrs; + + if (cpu_architecture() < CPU_ARCH_ARMv7) + return; + + divide_instrs = (read_cpuid_ext(CPUID_EXT_ISAR0) & 0x0f000000) >> 24; + + switch (divide_instrs) { + case 2: + elf_hwcap |= HWCAP_IDIVA; + case 1: + elf_hwcap |= HWCAP_IDIVT; + } +} + static void __init feat_v6_fixup(void) { int id = read_cpuid_id(); @@ -483,6 +500,9 @@ static void __init setup_processor(void) snprintf(elf_platform, ELF_PLATFORM_SIZE, "%s%c", list->elf_name, ENDIANNESS); elf_hwcap = list->elf_hwcap; + + cpuid_init_hwcaps(); + #ifndef CONFIG_ARM_THUMB elf_hwcap &= ~(HWCAP_THUMB | HWCAP_IDIVT); #endif diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 3a3c015..bcd3d48 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -420,7 +420,7 @@ __v7_pj4b_proc_info: __v7_ca7mp_proc_info: .long 0x410fc070 .long 0xff0ffff0 - __v7_proc __v7_ca7mp_setup, hwcaps = HWCAP_IDIV + __v7_proc __v7_ca7mp_setup .size __v7_ca7mp_proc_info, . - __v7_ca7mp_proc_info /* @@ -430,7 +430,7 @@ __v7_ca7mp_proc_info: __v7_ca15mp_proc_info: .long 0x410fc0f0 .long 0xff0ffff0 - __v7_proc __v7_ca15mp_setup, hwcaps = HWCAP_IDIV + __v7_proc __v7_ca15mp_setup .size __v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info /* -- cgit v0.10.2 From 120ecfafabec382c4feb79ff159ef42a39b6d33b Mon Sep 17 00:00:00 2001 From: Stepan Moskovchenko Date: Mon, 18 Mar 2013 19:44:16 +0100 Subject: ARM: 7678/1: Work around faulty ISAR0 register in some Krait CPUs Some early versions of the Krait CPU design incorrectly indicate that they only support the UDIV and SDIV instructions in Thumb mode when they actually support them in ARM and Thumb mode. It seems that these CPUs follow the DDI0406B ARM ARM which has two possible values for the divide instructions field, instead of the DDI0406C document which has three possible values. Work around this problem by checking the MIDR against Krait CPUs with this faulty ISAR0 register and force the hwcaps to indicate support in both modes. [sboyd: Rewrote commit text to reflect real reasoning now that we autodetect udiv/sdiv] Signed-off-by: Stepan Moskovchenko Acked-by: Will Deacon Signed-off-by: Stephen Boyd Signed-off-by: Russell King diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index bcd3d48..f584d3f 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -434,6 +434,21 @@ __v7_ca15mp_proc_info: .size __v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info /* + * Qualcomm Inc. Krait processors. + */ + .type __krait_proc_info, #object +__krait_proc_info: + .long 0x510f0400 @ Required ID value + .long 0xff0ffc00 @ Mask for ID + /* + * Some Krait processors don't indicate support for SDIV and UDIV + * instructions in the ARM instruction set, even though they actually + * do support them. + */ + __v7_proc __v7_setup, hwcaps = HWCAP_IDIV + .size __krait_proc_info, . - __krait_proc_info + + /* * Match any ARMv7 processor core. */ .type __v7_proc_info, #object -- cgit v0.10.2 From 68a154fc53ddd3f7b33e482847a411bf54a50855 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Wed, 20 Mar 2013 17:30:30 +0100 Subject: ARM: 7681/1: hw_breakpoint: use warn_once to avoid spam from reset_ctrl_regs() CPU debug features like hardware break, watchpoints can be used only when the debug mode is enabled and available. Unfortunately on OMAP4 based devices, after a CPU power cycle, the debug feature gets disabled which leads to a flood of messages coming from reset_ctrl_regs() which gets called on every CPU_PM_EXIT with CPUidle enabled. So make use of warn_once() so that system is usable. Thanks to Will for pointers and Lokesh for the analysis of the issue. Tested-by: Lokesh Vutla Signed-off-by: Santosh Shilimkar Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index 96093b7..5dc1aa6 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -966,7 +966,7 @@ static void reset_ctrl_regs(void *unused) } if (err) { - pr_warning("CPU %d debug is powered down!\n", cpu); + pr_warn_once("CPU %d debug is powered down!\n", cpu); cpumask_or(&debug_err_mask, &debug_err_mask, cpumask_of(cpu)); return; } @@ -987,7 +987,7 @@ clear_vcr: isb(); if (cpumask_intersects(&debug_err_mask, cpumask_of(cpu))) { - pr_warning("CPU %d failed to disable vector catch\n", cpu); + pr_warn_once("CPU %d failed to disable vector catch\n", cpu); return; } @@ -1007,7 +1007,7 @@ clear_vcr: } if (cpumask_intersects(&debug_err_mask, cpumask_of(cpu))) { - pr_warning("CPU %d failed to clear debug register pairs\n", cpu); + pr_warn_once("CPU %d failed to clear debug register pairs\n", cpu); return; } -- cgit v0.10.2 From 3fbd45ca8d1c98f3c2582ef8bc70ade42f70947b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 25 Mar 2013 11:51:14 +0100 Subject: mac80211: fix remain-on-channel cancel crash If a ROC item is canceled just as it expires, the work struct may be scheduled while it is running (and waiting for the mutex). This results in it being run after being freed, which obviously crashes. To fix this don't free it when aborting is requested but instead mark it as "to be freed", which makes the work a no-op and allows freeing it outside. Cc: stable@vger.kernel.org [3.6+] Reported-by: Jouni Malinen Tested-by: Jouni Malinen Signed-off-by: Johannes Berg diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index fb30681..a689360 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2582,7 +2582,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, list_del(&dep->list); mutex_unlock(&local->mtx); - ieee80211_roc_notify_destroy(dep); + ieee80211_roc_notify_destroy(dep, true); return 0; } @@ -2622,7 +2622,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, ieee80211_start_next_roc(local); mutex_unlock(&local->mtx); - ieee80211_roc_notify_destroy(found); + ieee80211_roc_notify_destroy(found, true); } else { /* work may be pending so use it all the time */ found->abort = true; @@ -2632,6 +2632,8 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local, /* work will clean up etc */ flush_delayed_work(&found->work); + WARN_ON(!found->to_be_freed); + kfree(found); } return 0; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 388580a..7bdefd9 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -309,6 +309,7 @@ struct ieee80211_roc_work { struct ieee80211_channel *chan; bool started, abort, hw_begun, notified; + bool to_be_freed; unsigned long hw_start_time; @@ -1347,7 +1348,7 @@ void ieee80211_offchannel_return(struct ieee80211_local *local); void ieee80211_roc_setup(struct ieee80211_local *local); void ieee80211_start_next_roc(struct ieee80211_local *local); void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata); -void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc); +void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free); void ieee80211_sw_roc_work(struct work_struct *work); void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc); diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index cc79b4a..430bd25 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -297,10 +297,13 @@ void ieee80211_start_next_roc(struct ieee80211_local *local) } } -void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc) +void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free) { struct ieee80211_roc_work *dep, *tmp; + if (WARN_ON(roc->to_be_freed)) + return; + /* was never transmitted */ if (roc->frame) { cfg80211_mgmt_tx_status(&roc->sdata->wdev, @@ -316,9 +319,12 @@ void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc) GFP_KERNEL); list_for_each_entry_safe(dep, tmp, &roc->dependents, list) - ieee80211_roc_notify_destroy(dep); + ieee80211_roc_notify_destroy(dep, true); - kfree(roc); + if (free) + kfree(roc); + else + roc->to_be_freed = true; } void ieee80211_sw_roc_work(struct work_struct *work) @@ -331,6 +337,9 @@ void ieee80211_sw_roc_work(struct work_struct *work) mutex_lock(&local->mtx); + if (roc->to_be_freed) + goto out_unlock; + if (roc->abort) goto finish; @@ -370,7 +379,7 @@ void ieee80211_sw_roc_work(struct work_struct *work) finish: list_del(&roc->list); started = roc->started; - ieee80211_roc_notify_destroy(roc); + ieee80211_roc_notify_destroy(roc, !roc->abort); if (started) { drv_flush(local, false); @@ -410,7 +419,7 @@ static void ieee80211_hw_roc_done(struct work_struct *work) list_del(&roc->list); - ieee80211_roc_notify_destroy(roc); + ieee80211_roc_notify_destroy(roc, true); /* if there's another roc, start it now */ ieee80211_start_next_roc(local); @@ -460,12 +469,14 @@ void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata) list_for_each_entry_safe(roc, tmp, &tmp_list, list) { if (local->ops->remain_on_channel) { list_del(&roc->list); - ieee80211_roc_notify_destroy(roc); + ieee80211_roc_notify_destroy(roc, true); } else { ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); /* work will clean up etc */ flush_delayed_work(&roc->work); + WARN_ON(!roc->to_be_freed); + kfree(roc); } } -- cgit v0.10.2 From 130549fed828cc34c22624c6195afcf9e7ae56fe Mon Sep 17 00:00:00 2001 From: Gao feng Date: Thu, 21 Mar 2013 19:48:41 +0000 Subject: netfilter: reset nf_trace in nf_reset We forgot to clear the nf_trace of sk_buff in nf_reset, When we use veth device, this nf_trace information will be leaked from one net namespace to another net namespace. Signed-off-by: Gao feng Signed-off-by: Pablo Neira Ayuso diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 441f5bf..72b3967 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2641,6 +2641,9 @@ static inline void nf_reset(struct sk_buff *skb) nf_bridge_put(skb->nf_bridge); skb->nf_bridge = NULL; #endif +#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE) + skb->nf_trace = 0; +#endif } /* Note: This doesn't put any conntrack and bridge info in dst. */ -- cgit v0.10.2 From 558724a5b2a73ad0c7638e21e8dffc419d267b6c Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 22 Mar 2013 01:28:18 +0000 Subject: netfilter: nfnetlink_queue: fix error return code in nfnetlink_queue_init() Fix to return a negative error code from the error handling case instead of 0, as returned elsewhere in this function. Signed-off-by: Wei Yongjun Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c index 1cb4854..42680b2 100644 --- a/net/netfilter/nfnetlink_queue_core.c +++ b/net/netfilter/nfnetlink_queue_core.c @@ -1062,8 +1062,10 @@ static int __init nfnetlink_queue_init(void) #ifdef CONFIG_PROC_FS if (!proc_create("nfnetlink_queue", 0440, - proc_net_netfilter, &nfqnl_file_ops)) + proc_net_netfilter, &nfqnl_file_ops)) { + status = -ENOMEM; goto cleanup_subsys; + } #endif register_netdevice_notifier(&nfqnl_dev_notifier); -- cgit v0.10.2 From deadcfc3324410726cd6a663fb4fc46be595abe7 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Sat, 23 Mar 2013 16:57:59 +0100 Subject: netfilter: nfnetlink_acct: return -EINVAL if object name is empty If user-space tries to create accounting object with an empty name, then return -EINVAL. Reported-by: Michael Zintakis Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c index 589d686..dc3fd5d 100644 --- a/net/netfilter/nfnetlink_acct.c +++ b/net/netfilter/nfnetlink_acct.c @@ -49,6 +49,8 @@ nfnl_acct_new(struct sock *nfnl, struct sk_buff *skb, return -EINVAL; acct_name = nla_data(tb[NFACCT_NAME]); + if (strlen(acct_name) == 0) + return -EINVAL; list_for_each_entry(nfacct, &nfnl_acct_list, head) { if (strncmp(nfacct->name, acct_name, NFACCT_NAME_MAX) != 0) -- cgit v0.10.2 From 382a103b2b528a3085cde4ac56fc69d92a828b72 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 22 Mar 2013 22:30:09 +0100 Subject: mac80211: fix idle handling sequence Corey Richardson reported that my idle handling cleanup (commit fd0f979a1b, "mac80211: simplify idle handling") broke ath9k_htc. The reason appears to be that it wants to go out of idle before switching channels. To fix it, reimplement that sequence. Reported-by: Corey Richardson Signed-off-by: Johannes Berg diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 78c0d90..931be41 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -63,6 +63,7 @@ ieee80211_new_chanctx(struct ieee80211_local *local, enum ieee80211_chanctx_mode mode) { struct ieee80211_chanctx *ctx; + u32 changed; int err; lockdep_assert_held(&local->chanctx_mtx); @@ -76,6 +77,13 @@ ieee80211_new_chanctx(struct ieee80211_local *local, ctx->conf.rx_chains_dynamic = 1; ctx->mode = mode; + /* acquire mutex to prevent idle from changing */ + mutex_lock(&local->mtx); + /* turn idle off *before* setting channel -- some drivers need that */ + changed = ieee80211_idle_off(local); + if (changed) + ieee80211_hw_config(local, changed); + if (!local->use_chanctx) { local->_oper_channel_type = cfg80211_get_chandef_type(chandef); @@ -85,14 +93,17 @@ ieee80211_new_chanctx(struct ieee80211_local *local, err = drv_add_chanctx(local, ctx); if (err) { kfree(ctx); - return ERR_PTR(err); + ctx = ERR_PTR(err); + + ieee80211_recalc_idle(local); + goto out; } } + /* and keep the mutex held until the new chanctx is on the list */ list_add_rcu(&ctx->list, &local->chanctx_list); - mutex_lock(&local->mtx); - ieee80211_recalc_idle(local); + out: mutex_unlock(&local->mtx); return ctx; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 7bdefd9..5672533 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1362,6 +1362,7 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, enum nl80211_iftype type); void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); void ieee80211_remove_interfaces(struct ieee80211_local *local); +u32 ieee80211_idle_off(struct ieee80211_local *local); void ieee80211_recalc_idle(struct ieee80211_local *local); void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, const int offset); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 3bfe261..58150f8 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -78,7 +78,7 @@ void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata) ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_TXPOWER); } -static u32 ieee80211_idle_off(struct ieee80211_local *local) +u32 ieee80211_idle_off(struct ieee80211_local *local) { if (!(local->hw.conf.flags & IEEE80211_CONF_IDLE)) return 0; -- cgit v0.10.2 From 39a352a5b5896403ad4ce842a9bc3845a01c02cd Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Tue, 26 Mar 2013 14:35:57 +0100 Subject: NFC: llcp: Keep the connected socket parent pointer alive And avoid decreasing the ack log twice when dequeueing connected LLCP sockets. Signed-off-by: Samuel Ortiz diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index e488e44..8f02574 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -270,7 +270,9 @@ struct sock *nfc_llcp_accept_dequeue(struct sock *parent, } if (sk->sk_state == LLCP_CONNECTED || !newsock) { - nfc_llcp_accept_unlink(sk); + list_del_init(&lsk->accept_queue); + sock_put(sk); + if (newsock) sock_graft(sk, newsock); -- cgit v0.10.2 From 2ab3a749eb14c96eaf453afe6e678c9c1dab1637 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Tue, 5 Mar 2013 09:06:58 +0100 Subject: gpio-ich: Fix value returned by ichx_gpio_request Per Documentation/gpio.txt, gpio_request callbacks should return 0 on success or a negative value on error. So it is not clear what was meant by letting ichx_gpio_request return 1 in some cases, nor how a caller would interpret it. Align the code with the comment above it and consider pins as available by default. Signed-off-by: Jean Delvare Cc: Grant Likely Acked-by: Peter Tyser Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c index f9dbd50..de3c317 100644 --- a/drivers/gpio/gpio-ich.c +++ b/drivers/gpio/gpio-ich.c @@ -214,7 +214,7 @@ static int ichx_gpio_request(struct gpio_chip *chip, unsigned nr) * If it can't be trusted, assume that the pin can be used as a GPIO. */ if (ichx_priv.desc->use_sel_ignore[nr / 32] & (1 << (nr & 0x1f))) - return 1; + return 0; return ichx_read_bit(GPIO_USE_SEL, nr) ? 0 : -ENODEV; } -- cgit v0.10.2 From 9afd9b7090225d78ef56423a2ff65354dc38f1b1 Mon Sep 17 00:00:00 2001 From: Gabriel Fernandez Date: Mon, 18 Mar 2013 11:45:05 +0100 Subject: gpio: stmpe: pass DT node to irqdomain The irq domain was implemented but the device tree node was not transmitted to irq_domain_add_simple(). Cc: stable@vger.kernel.org Signed-off-by: Gabriel Fernandez Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c index 770476a..3ce5bc3 100644 --- a/drivers/gpio/gpio-stmpe.c +++ b/drivers/gpio/gpio-stmpe.c @@ -307,11 +307,15 @@ static const struct irq_domain_ops stmpe_gpio_irq_simple_ops = { .xlate = irq_domain_xlate_twocell, }; -static int stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio) +static int stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio, + struct device_node *np) { - int base = stmpe_gpio->irq_base; + int base = 0; - stmpe_gpio->domain = irq_domain_add_simple(NULL, + if (!np) + base = stmpe_gpio->irq_base; + + stmpe_gpio->domain = irq_domain_add_simple(np, stmpe_gpio->chip.ngpio, base, &stmpe_gpio_irq_simple_ops, stmpe_gpio); if (!stmpe_gpio->domain) { @@ -346,6 +350,9 @@ static int stmpe_gpio_probe(struct platform_device *pdev) stmpe_gpio->chip = template_chip; stmpe_gpio->chip.ngpio = stmpe->num_gpios; stmpe_gpio->chip.dev = &pdev->dev; +#ifdef CONFIG_OF + stmpe_gpio->chip.of_node = np; +#endif stmpe_gpio->chip.base = pdata ? pdata->gpio_base : -1; if (pdata) @@ -366,7 +373,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev) goto out_free; if (irq >= 0) { - ret = stmpe_gpio_irq_init(stmpe_gpio); + ret = stmpe_gpio_irq_init(stmpe_gpio, np); if (ret) goto out_disable; -- cgit v0.10.2 From 5389090b59f7f72a30e25f5fd1fc560340543970 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 27 Mar 2013 03:57:10 +0000 Subject: netfilter: nf_conntrack: fix error return code Fix to return a negative error code from the error handling case instead of 0, as returned elsewhere in function nf_conntrack_standalone_init(). Signed-off-by: Wei Yongjun Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index 6bcce40..fedee39 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -568,6 +568,7 @@ static int __init nf_conntrack_standalone_init(void) register_net_sysctl(&init_net, "net", nf_ct_netfilter_table); if (!nf_ct_netfilter_header) { pr_err("nf_conntrack: can't register to sysctl.\n"); + ret = -ENOMEM; goto out_sysctl; } #endif -- cgit v0.10.2 From b8730b403aee94db4631bfefb546a6ce8c287dc2 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 27 Mar 2013 20:49:58 +0100 Subject: iwlwifi: dvm: fix the passive-no-RX workaround Alex Romosan reported that since the mac80211 changes in "mac80211: start auth/assoc timeout on frame status" and the subsequent fixes in "mac80211: fix auth/assoc timeout handling" (commits 1672c0e31917 and 89afe614c0c) there's sometimes an issue connecting to a 5 GHz network with the iwlwifi DVM driver. The reason appears to be that since these commits any bad TX status makes mac80211 immediately try again, causing all of the authentication attempts to be quickly rejected by the firmware as it hasn't heard a beacon yet. Before, it would wait for the timeout regardless of status. To fix this, invoke the passive-no-RX workaround when not associated yet as well. This will cause the first frame to get lost, but then the driver will stop the queues and the second attempt will only be transmitted after hearing a beacon, thus delaying it appropriately to not make the firmware reject it again. Reported-by: Alex Romosan Tested-by: Alex Romosan Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/dvm/rxon.c b/drivers/net/wireless/iwlwifi/dvm/rxon.c index 23be948..a82b6b3 100644 --- a/drivers/net/wireless/iwlwifi/dvm/rxon.c +++ b/drivers/net/wireless/iwlwifi/dvm/rxon.c @@ -1419,6 +1419,14 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw, mutex_lock(&priv->mutex); + if (changes & BSS_CHANGED_IDLE && bss_conf->idle) { + /* + * If we go idle, then clearly no "passive-no-rx" + * workaround is needed any more, this is a reset. + */ + iwlagn_lift_passive_no_rx(priv); + } + if (unlikely(!iwl_is_ready(priv))) { IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); mutex_unlock(&priv->mutex); @@ -1450,16 +1458,6 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw, priv->timestamp = bss_conf->sync_tsf; ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; } else { - /* - * If we disassociate while there are pending - * frames, just wake up the queues and let the - * frames "escape" ... This shouldn't really - * be happening to start with, but we should - * not get stuck in this case either since it - * can happen if userspace gets confused. - */ - iwlagn_lift_passive_no_rx(priv); - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; if (ctx->ctxid == IWL_RXON_CTX_BSS) diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c index 6aec2df..d1a670d 100644 --- a/drivers/net/wireless/iwlwifi/dvm/tx.c +++ b/drivers/net/wireless/iwlwifi/dvm/tx.c @@ -1192,7 +1192,7 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, memset(&info->status, 0, sizeof(info->status)); if (status == TX_STATUS_FAIL_PASSIVE_NO_RX && - iwl_is_associated_ctx(ctx) && ctx->vif && + ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION) { /* block and stop all queues */ priv->passive_no_rx = true; -- cgit v0.10.2 From 5b4617d82020addf244c8c5206270e49ef9933d6 Mon Sep 17 00:00:00 2001 From: Alexey Klimov Date: Thu, 28 Mar 2013 00:07:29 +0400 Subject: HID: fix Masterkit MA901 hid quirks This patch reverts commit 0322bd3980 ("usb hid quirks for Masterkit MA901 usb radio") and adds checks in hid_ignore() for Masterkit MA901 usb radio device. This usb radio device shares USB ID with many Atmel V-USB (and probably other) devices so patch sorts things out by checking name, vendor, product of hid device. Signed-off-by: Alexey Klimov Acked-by: Mauro Carvalho Chehab Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 512b01c..aa341d1 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -2077,7 +2077,6 @@ static const struct hid_device_id hid_ignore_list[] = { { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) }, { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) }, { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) }, - { HID_USB_DEVICE(USB_VENDOR_ID_MASTERKIT, USB_DEVICE_ID_MASTERKIT_MA901RADIO) }, { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, @@ -2244,6 +2243,18 @@ bool hid_ignore(struct hid_device *hdev) hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST)) return true; break; + case USB_VENDOR_ID_ATMEL_V_USB: + /* Masterkit MA901 usb radio based on Atmel tiny85 chip and + * it has the same USB ID as many Atmel V-USB devices. This + * usb radio is handled by radio-ma901.c driver so we want + * ignore the hid. Check the name, bus, product and ignore + * if we have MA901 usb radio. + */ + if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB && + hdev->bus == BUS_USB && + strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0) + return true; + break; } if (hdev->type == HID_TYPE_USBMOUSE && diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index c438877..5309fd5 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -158,6 +158,8 @@ #define USB_VENDOR_ID_ATMEL 0x03eb #define USB_DEVICE_ID_ATMEL_MULTITOUCH 0x211c #define USB_DEVICE_ID_ATMEL_MXT_DIGITIZER 0x2118 +#define USB_VENDOR_ID_ATMEL_V_USB 0x16c0 +#define USB_DEVICE_ID_ATMEL_V_USB 0x05df #define USB_VENDOR_ID_AUREAL 0x0755 #define USB_DEVICE_ID_AUREAL_W01RN 0x2626 @@ -557,9 +559,6 @@ #define USB_VENDOR_ID_MADCATZ 0x0738 #define USB_DEVICE_ID_MADCATZ_BEATPAD 0x4540 -#define USB_VENDOR_ID_MASTERKIT 0x16c0 -#define USB_DEVICE_ID_MASTERKIT_MA901RADIO 0x05df - #define USB_VENDOR_ID_MCC 0x09db #define USB_DEVICE_ID_MCC_PMD1024LS 0x0076 #define USB_DEVICE_ID_MCC_PMD1208LS 0x007a -- cgit v0.10.2 From 30b29537bcba070b3df8d7d24c1975676a1a6a4f Mon Sep 17 00:00:00 2001 From: Alexey Klimov Date: Thu, 28 Mar 2013 00:08:19 +0400 Subject: media: radio-ma901: return ENODEV in probe if usb_device doesn't match Masterkit MA901 usb radio device shares USB ID with Atmel V-USB devices. This patch adds additional checks in usb_ma901radio_probe() and if product or manufacturer doesn't match we return -ENODEV and don't continue. This allows hid drivers to handle not MA901 device. Signed-off-by: Alexey Klimov Acked-by: Mauro Carvalho Chehab Signed-off-by: Jiri Kosina diff --git a/drivers/media/radio/radio-ma901.c b/drivers/media/radio/radio-ma901.c index c61f590..348dafc 100644 --- a/drivers/media/radio/radio-ma901.c +++ b/drivers/media/radio/radio-ma901.c @@ -347,9 +347,20 @@ static void usb_ma901radio_release(struct v4l2_device *v4l2_dev) static int usb_ma901radio_probe(struct usb_interface *intf, const struct usb_device_id *id) { + struct usb_device *dev = interface_to_usbdev(intf); struct ma901radio_device *radio; int retval = 0; + /* Masterkit MA901 usb radio has the same USB ID as many others + * Atmel V-USB devices. Let's make additional checks to be sure + * that this is our device. + */ + + if (dev->product && dev->manufacturer && + (strncmp(dev->product, "MA901", 5) != 0 + || strncmp(dev->manufacturer, "www.masterkit.ru", 16) != 0)) + return -ENODEV; + radio = kzalloc(sizeof(struct ma901radio_device), GFP_KERNEL); if (!radio) { dev_err(&intf->dev, "kzalloc for ma901radio_device failed\n"); -- cgit v0.10.2 From 35e5cbc0af240778e61113286c019837e06aeec6 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Fri, 29 Mar 2013 15:39:16 +0100 Subject: reiserfs: Fix warning and inode leak when deleting inode with xattrs After commit 21d8a15a (lookup_one_len: don't accept . and ..) reiserfs started failing to delete xattrs from inode. This was due to a buggy test for '.' and '..' in fill_with_dentries() which resulted in passing '.' and '..' entries to lookup_one_len() in some cases. That returned error and so we failed to iterate over all xattrs of and inode. Fix the test in fill_with_dentries() along the lines of the one in lookup_one_len(). Reported-by: Pawel Zawora CC: stable@vger.kernel.org Signed-off-by: Jan Kara diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index c196369..4cce1d9 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -187,8 +187,8 @@ fill_with_dentries(void *buf, const char *name, int namelen, loff_t offset, if (dbuf->count == ARRAY_SIZE(dbuf->dentries)) return -ENOSPC; - if (name[0] == '.' && (name[1] == '\0' || - (name[1] == '.' && name[2] == '\0'))) + if (name[0] == '.' && (namelen < 2 || + (namelen == 2 && name[1] == '.'))) return 0; dentry = lookup_one_len(name, dbuf->xadir, namelen); -- cgit v0.10.2 From 9593b0b1179c526436f14849a9587fd2aae12040 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Thu, 28 Mar 2013 10:39:28 +0100 Subject: NFC: microread: Fix build failure due to a new MEI bus API uuid device_id field is removed and mei_device is renamed mei_cl_device. Signed-off-by: Samuel Ortiz diff --git a/drivers/nfc/microread/mei.c b/drivers/nfc/microread/mei.c index eef38cf..ca33ae1 100644 --- a/drivers/nfc/microread/mei.c +++ b/drivers/nfc/microread/mei.c @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include @@ -32,9 +32,6 @@ #define MICROREAD_DRIVER_NAME "microread" -#define MICROREAD_UUID UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, 0x94, \ - 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c) - struct mei_nfc_hdr { u8 cmd; u8 status; @@ -48,7 +45,7 @@ struct mei_nfc_hdr { #define MEI_NFC_MAX_READ (MEI_NFC_HEADER_SIZE + MEI_NFC_MAX_HCI_PAYLOAD) struct microread_mei_phy { - struct mei_device *mei_device; + struct mei_cl_device *device; struct nfc_hci_dev *hdev; int powered; @@ -105,14 +102,14 @@ static int microread_mei_write(void *phy_id, struct sk_buff *skb) MEI_DUMP_SKB_OUT("mei frame sent", skb); - r = mei_send(phy->device, skb->data, skb->len); + r = mei_cl_send(phy->device, skb->data, skb->len); if (r > 0) r = 0; return r; } -static void microread_event_cb(struct mei_device *device, u32 events, +static void microread_event_cb(struct mei_cl_device *device, u32 events, void *context) { struct microread_mei_phy *phy = context; @@ -120,7 +117,7 @@ static void microread_event_cb(struct mei_device *device, u32 events, if (phy->hard_fault != 0) return; - if (events & BIT(MEI_EVENT_RX)) { + if (events & BIT(MEI_CL_EVENT_RX)) { struct sk_buff *skb; int reply_size; @@ -128,7 +125,7 @@ static void microread_event_cb(struct mei_device *device, u32 events, if (!skb) return; - reply_size = mei_recv(device, skb->data, MEI_NFC_MAX_READ); + reply_size = mei_cl_recv(device, skb->data, MEI_NFC_MAX_READ); if (reply_size < MEI_NFC_HEADER_SIZE) { kfree(skb); return; @@ -149,8 +146,8 @@ static struct nfc_phy_ops mei_phy_ops = { .disable = microread_mei_disable, }; -static int microread_mei_probe(struct mei_device *device, - const struct mei_id *id) +static int microread_mei_probe(struct mei_cl_device *device, + const struct mei_cl_device_id *id) { struct microread_mei_phy *phy; int r; @@ -164,9 +161,9 @@ static int microread_mei_probe(struct mei_device *device, } phy->device = device; - mei_set_clientdata(device, phy); + mei_cl_set_drvdata(device, phy); - r = mei_register_event_cb(device, microread_event_cb, phy); + r = mei_cl_register_event_cb(device, microread_event_cb, phy); if (r) { pr_err(MICROREAD_DRIVER_NAME ": event cb registration failed\n"); goto err_out; @@ -186,9 +183,9 @@ err_out: return r; } -static int microread_mei_remove(struct mei_device *device) +static int microread_mei_remove(struct mei_cl_device *device) { - struct microread_mei_phy *phy = mei_get_clientdata(device); + struct microread_mei_phy *phy = mei_cl_get_drvdata(device); pr_info("Removing microread\n"); @@ -202,16 +199,15 @@ static int microread_mei_remove(struct mei_device *device) return 0; } -static struct mei_id microread_mei_tbl[] = { - { MICROREAD_DRIVER_NAME, MICROREAD_UUID }, +static struct mei_cl_device_id microread_mei_tbl[] = { + { MICROREAD_DRIVER_NAME }, /* required last entry */ { } }; - MODULE_DEVICE_TABLE(mei, microread_mei_tbl); -static struct mei_driver microread_driver = { +static struct mei_cl_driver microread_driver = { .id_table = microread_mei_tbl, .name = MICROREAD_DRIVER_NAME, @@ -225,7 +221,7 @@ static int microread_mei_init(void) pr_debug(DRIVER_DESC ": %s\n", __func__); - r = mei_driver_register(µread_driver); + r = mei_cl_driver_register(µread_driver); if (r) { pr_err(MICROREAD_DRIVER_NAME ": driver registration failed\n"); return r; @@ -236,7 +232,7 @@ static int microread_mei_init(void) static void microread_mei_exit(void) { - mei_driver_unregister(µread_driver); + mei_cl_driver_unregister(µread_driver); } module_init(microread_mei_init); -- cgit v0.10.2 From 375981f2e14868be16cafbffd34a4f16a6ee01c6 Mon Sep 17 00:00:00 2001 From: Girish K S Date: Wed, 13 Mar 2013 12:13:30 +0530 Subject: spi/s3c64xx: modified error interrupt handling and init The status of the interrupt is available in the status register, so reading the clear pending register and writing back the same value will not actually clear the pending interrupts. This patch modifies the interrupt handler to read the status register and clear the corresponding pending bit in the clear pending register. Modified the hwInit function to clear all the pending interrupts. Signed-off-by: Girish K S Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index e862ab8..4188b2f 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -994,25 +994,30 @@ static irqreturn_t s3c64xx_spi_irq(int irq, void *data) { struct s3c64xx_spi_driver_data *sdd = data; struct spi_master *spi = sdd->master; - unsigned int val; + unsigned int val, clr = 0; - val = readl(sdd->regs + S3C64XX_SPI_PENDING_CLR); + val = readl(sdd->regs + S3C64XX_SPI_STATUS); - val &= S3C64XX_SPI_PND_RX_OVERRUN_CLR | - S3C64XX_SPI_PND_RX_UNDERRUN_CLR | - S3C64XX_SPI_PND_TX_OVERRUN_CLR | - S3C64XX_SPI_PND_TX_UNDERRUN_CLR; - - writel(val, sdd->regs + S3C64XX_SPI_PENDING_CLR); - - if (val & S3C64XX_SPI_PND_RX_OVERRUN_CLR) + if (val & S3C64XX_SPI_ST_RX_OVERRUN_ERR) { + clr = S3C64XX_SPI_PND_RX_OVERRUN_CLR; dev_err(&spi->dev, "RX overrun\n"); - if (val & S3C64XX_SPI_PND_RX_UNDERRUN_CLR) + } + if (val & S3C64XX_SPI_ST_RX_UNDERRUN_ERR) { + clr |= S3C64XX_SPI_PND_RX_UNDERRUN_CLR; dev_err(&spi->dev, "RX underrun\n"); - if (val & S3C64XX_SPI_PND_TX_OVERRUN_CLR) + } + if (val & S3C64XX_SPI_ST_TX_OVERRUN_ERR) { + clr |= S3C64XX_SPI_PND_TX_OVERRUN_CLR; dev_err(&spi->dev, "TX overrun\n"); - if (val & S3C64XX_SPI_PND_TX_UNDERRUN_CLR) + } + if (val & S3C64XX_SPI_ST_TX_UNDERRUN_ERR) { + clr |= S3C64XX_SPI_PND_TX_UNDERRUN_CLR; dev_err(&spi->dev, "TX underrun\n"); + } + + /* Clear the pending irq by setting and then clearing it */ + writel(clr, sdd->regs + S3C64XX_SPI_PENDING_CLR); + writel(0, sdd->regs + S3C64XX_SPI_PENDING_CLR); return IRQ_HANDLED; } @@ -1036,9 +1041,13 @@ static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd, int channel) writel(0, regs + S3C64XX_SPI_MODE_CFG); writel(0, regs + S3C64XX_SPI_PACKET_CNT); - /* Clear any irq pending bits */ - writel(readl(regs + S3C64XX_SPI_PENDING_CLR), - regs + S3C64XX_SPI_PENDING_CLR); + /* Clear any irq pending bits, should set and clear the bits */ + val = S3C64XX_SPI_PND_RX_OVERRUN_CLR | + S3C64XX_SPI_PND_RX_UNDERRUN_CLR | + S3C64XX_SPI_PND_TX_OVERRUN_CLR | + S3C64XX_SPI_PND_TX_UNDERRUN_CLR; + writel(val, regs + S3C64XX_SPI_PENDING_CLR); + writel(0, regs + S3C64XX_SPI_PENDING_CLR); writel(0, regs + S3C64XX_SPI_SWAP_CFG); -- cgit v0.10.2 From b0b36b861e434ee1c1a64cb39259e262f79af62e Mon Sep 17 00:00:00 2001 From: Bryan Freed Date: Wed, 13 Mar 2013 11:17:40 -0700 Subject: spi: Unlock a spinlock before calling into the controller driver. spi_pump_messages() calls into a controller driver with unprepare_transfer_hardware() which is documented as "This may sleep". As in the prepare_transfer_hardware() call below, we should release the queue_lock spinlock before making the call. Rework the logic a bit to hold queue_lock to protect the 'busy' flag, then release it to call unprepare_transfer_hardware(). Signed-off-by: Bryan Freed Reviewed-by: Doug Anderson Signed-off-by: Doug Anderson Acked-by: Linus Walleij Signed-off-by: Mark Brown diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index f996c60..5b96250 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -543,17 +543,16 @@ static void spi_pump_messages(struct kthread_work *work) /* Lock queue and check for queue work */ spin_lock_irqsave(&master->queue_lock, flags); if (list_empty(&master->queue) || !master->running) { - if (master->busy && master->unprepare_transfer_hardware) { - ret = master->unprepare_transfer_hardware(master); - if (ret) { - spin_unlock_irqrestore(&master->queue_lock, flags); - dev_err(&master->dev, - "failed to unprepare transfer hardware\n"); - return; - } + if (!master->busy) { + spin_unlock_irqrestore(&master->queue_lock, flags); + return; } master->busy = false; spin_unlock_irqrestore(&master->queue_lock, flags); + if (master->unprepare_transfer_hardware && + master->unprepare_transfer_hardware(master)) + dev_err(&master->dev, + "failed to unprepare transfer hardware\n"); return; } -- cgit v0.10.2 From 1ad849aee5f53353ed88d9cd3d68a51b03a7d44f Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Wed, 13 Mar 2013 14:57:43 +0100 Subject: spi/mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts Some SPI slave devices require asserted chip select signal across multiple transfer segments of an SPI message. Currently the driver always de-asserts the internal SS signal for every single transfer segment of the message and ignores the 'cs_change' flag of the transfer description. Disable the internal chip select (SS) only if this is needed and indicated by the 'cs_change' flag. Without this change, each partial transfer of a surrounding multi-part SPI transaction might erroneously change the SS signal, which might prevent slaves from answering the request that was sent in a previous transfer segment because the transaction could be considered aborted (SS was de-asserted before reading the response). Reported-by: Gerhard Sittig Signed-off-by: Anatolij Gustschin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 89480b2..3e490ee 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -164,7 +164,7 @@ static int mpc512x_psc_spi_transfer_rxtx(struct spi_device *spi, for (i = count; i > 0; i--) { data = tx_buf ? *tx_buf++ : 0; - if (len == EOFBYTE) + if (len == EOFBYTE && t->cs_change) setbits32(&fifo->txcmd, MPC512x_PSC_FIFO_EOF); out_8(&fifo->txdata_8, data); len--; -- cgit v0.10.2 From 901ceba4e81e9dd6b4a3c4c37ee22000a6c5c65f Mon Sep 17 00:00:00 2001 From: Stone Piao Date: Fri, 29 Mar 2013 19:21:21 -0700 Subject: mwifiex: limit channel number not to overflow memory Limit the channel number in scan request, or the driver scan config structure memory will be overflowed. Cc: # 3.5+ Signed-off-by: Stone Piao Signed-off-by: Bing Zhao Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index a44023a..8aaf56a 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1892,7 +1892,8 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy, } } - for (i = 0; i < request->n_channels; i++) { + for (i = 0; i < min_t(u32, request->n_channels, + MWIFIEX_USER_SCAN_CHAN_MAX); i++) { chan = request->channels[i]; priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value; priv->user_scan_cfg->chan_list[i].radio_type = chan->band; -- cgit v0.10.2 From da259465d7526804b21d274281fb4d60b4216c82 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 2 Apr 2013 01:25:09 +0200 Subject: USB / PM: Don't try to hide PM QoS flags from usb_port_device_release() Remove the call to dev_pm_qos_hide_flags(), added by commit 6e30d7cb "usb: Add driver/usb/core/(port.c,hub.h) files", from usb_port_device_release(), because (1) it is completely unnecessary (the flags have been removed already by the PM core during the unregistration of the device object) and (2) it triggers a NULL pointer dereference in sysfs_find_dirent() (dev->kobj.sd is NULL at this point). Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index 797f9d5..65d4e55 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -67,7 +67,6 @@ static void usb_port_device_release(struct device *dev) { struct usb_port *port_dev = to_usb_port(dev); - dev_pm_qos_hide_flags(dev); kfree(port_dev); } -- cgit v0.10.2 From 0f703069296664eb7c649c837cc8bb936c3ef07f Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 2 Apr 2013 01:25:24 +0200 Subject: PM / QoS: Avoid possible deadlock related to sysfs access Commit b81ea1b (PM / QoS: Fix concurrency issues and memory leaks in device PM QoS) put calls to pm_qos_sysfs_add_latency(), pm_qos_sysfs_add_flags(), pm_qos_sysfs_remove_latency(), and pm_qos_sysfs_remove_flags() under dev_pm_qos_mtx, which was a mistake, because it may lead to deadlocks in some situations. For example, if pm_qos_remote_wakeup_store() is run in parallel with dev_pm_qos_constraints_destroy(), they may deadlock in the following way: ====================================================== [ INFO: possible circular locking dependency detected ] 3.9.0-rc4-next-20130328-sasha-00014-g91a3267 #319 Tainted: G W ------------------------------------------------------- trinity-child6/12371 is trying to acquire lock: (s_active#54){++++.+}, at: [] sysfs_addrm_finish+0x31/0x60 but task is already holding lock: (dev_pm_qos_mtx){+.+.+.}, at: [] dev_pm_qos_constraints_destroy+0x23/0x250 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (dev_pm_qos_mtx){+.+.+.}: [] lock_acquire+0x1aa/0x240 [] __mutex_lock_common+0x59/0x5e0 [] mutex_lock_nested+0x3f/0x50 [] dev_pm_qos_update_flags+0x3f/0xc0 [] pm_qos_remote_wakeup_store+0x3f/0x70 [] dev_attr_store+0x13/0x20 [] sysfs_write_file+0xfa/0x150 [] __kernel_write+0x81/0x150 [] write_pipe_buf+0x4d/0x80 [] splice_from_pipe_feed+0x7c/0x120 [] __splice_from_pipe+0x45/0x80 [] splice_from_pipe+0x4c/0x70 [] default_file_splice_write+0x18/0x30 [] do_splice_from+0x83/0xb0 [] direct_splice_actor+0x1e/0x20 [] splice_direct_to_actor+0xe7/0x200 [] do_splice_direct+0x4c/0x70 [] do_sendfile+0x169/0x300 [] SyS_sendfile64+0x64/0xb0 [] tracesys+0xe1/0xe6 -> #0 (s_active#54){++++.+}: [] __lock_acquire+0x15bf/0x1e50 [] lock_acquire+0x1aa/0x240 [] sysfs_deactivate+0x122/0x1a0 [] sysfs_addrm_finish+0x31/0x60 [] sysfs_hash_and_remove+0x7f/0xb0 [] sysfs_unmerge_group+0x51/0x70 [] pm_qos_sysfs_remove_flags+0x14/0x20 [] __dev_pm_qos_hide_flags+0x30/0x70 [] dev_pm_qos_constraints_destroy+0x35/0x250 [] dpm_sysfs_remove+0x11/0x50 [] device_del+0x3f/0x1b0 [] device_unregister+0x48/0x60 [] usb_hub_remove_port_device+0x1c/0x20 [] hub_disconnect+0xdd/0x160 [] usb_unbind_interface+0x67/0x170 [] __device_release_driver+0x87/0xe0 [] device_release_driver+0x29/0x40 [] bus_remove_device+0x148/0x160 [] device_del+0x14f/0x1b0 [] usb_disable_device+0xf9/0x280 [] usb_set_configuration+0x268/0x840 [] usb_remove_store+0x4c/0x80 [] dev_attr_store+0x13/0x20 [] sysfs_write_file+0xfa/0x150 [] do_loop_readv_writev+0x4d/0x90 [] do_readv_writev+0xf9/0x1e0 [] vfs_writev+0x3a/0x60 [] SyS_writev+0x50/0xd0 [] tracesys+0xe1/0xe6 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(dev_pm_qos_mtx); lock(s_active#54); lock(dev_pm_qos_mtx); lock(s_active#54); *** DEADLOCK *** To avoid that, remove the calls to functions mentioned above from under dev_pm_qos_mtx and introduce a separate lock to prevent races between functions that add or remove device PM QoS sysfs attributes from happening. Reported-by: Sasha Levin Signed-off-by: Rafael J. Wysocki diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c index 5f74587e..71671c4 100644 --- a/drivers/base/power/qos.c +++ b/drivers/base/power/qos.c @@ -46,6 +46,7 @@ #include "power.h" static DEFINE_MUTEX(dev_pm_qos_mtx); +static DEFINE_MUTEX(dev_pm_qos_sysfs_mtx); static BLOCKING_NOTIFIER_HEAD(dev_pm_notifiers); @@ -216,12 +217,17 @@ void dev_pm_qos_constraints_destroy(struct device *dev) struct pm_qos_constraints *c; struct pm_qos_flags *f; - mutex_lock(&dev_pm_qos_mtx); + mutex_lock(&dev_pm_qos_sysfs_mtx); /* * If the device's PM QoS resume latency limit or PM QoS flags have been * exposed to user space, they have to be hidden at this point. */ + pm_qos_sysfs_remove_latency(dev); + pm_qos_sysfs_remove_flags(dev); + + mutex_lock(&dev_pm_qos_mtx); + __dev_pm_qos_hide_latency_limit(dev); __dev_pm_qos_hide_flags(dev); @@ -254,6 +260,8 @@ void dev_pm_qos_constraints_destroy(struct device *dev) out: mutex_unlock(&dev_pm_qos_mtx); + + mutex_unlock(&dev_pm_qos_sysfs_mtx); } /** @@ -558,6 +566,14 @@ static void __dev_pm_qos_drop_user_request(struct device *dev, kfree(req); } +static void dev_pm_qos_drop_user_request(struct device *dev, + enum dev_pm_qos_req_type type) +{ + mutex_lock(&dev_pm_qos_mtx); + __dev_pm_qos_drop_user_request(dev, type); + mutex_unlock(&dev_pm_qos_mtx); +} + /** * dev_pm_qos_expose_latency_limit - Expose PM QoS latency limit to user space. * @dev: Device whose PM QoS latency limit is to be exposed to user space. @@ -581,6 +597,8 @@ int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value) return ret; } + mutex_lock(&dev_pm_qos_sysfs_mtx); + mutex_lock(&dev_pm_qos_mtx); if (IS_ERR_OR_NULL(dev->power.qos)) @@ -591,26 +609,27 @@ int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value) if (ret < 0) { __dev_pm_qos_remove_request(req); kfree(req); + mutex_unlock(&dev_pm_qos_mtx); goto out; } - dev->power.qos->latency_req = req; + + mutex_unlock(&dev_pm_qos_mtx); + ret = pm_qos_sysfs_add_latency(dev); if (ret) - __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_LATENCY); + dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_LATENCY); out: - mutex_unlock(&dev_pm_qos_mtx); + mutex_unlock(&dev_pm_qos_sysfs_mtx); return ret; } EXPORT_SYMBOL_GPL(dev_pm_qos_expose_latency_limit); static void __dev_pm_qos_hide_latency_limit(struct device *dev) { - if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->latency_req) { - pm_qos_sysfs_remove_latency(dev); + if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->latency_req) __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_LATENCY); - } } /** @@ -619,9 +638,15 @@ static void __dev_pm_qos_hide_latency_limit(struct device *dev) */ void dev_pm_qos_hide_latency_limit(struct device *dev) { + mutex_lock(&dev_pm_qos_sysfs_mtx); + + pm_qos_sysfs_remove_latency(dev); + mutex_lock(&dev_pm_qos_mtx); __dev_pm_qos_hide_latency_limit(dev); mutex_unlock(&dev_pm_qos_mtx); + + mutex_unlock(&dev_pm_qos_sysfs_mtx); } EXPORT_SYMBOL_GPL(dev_pm_qos_hide_latency_limit); @@ -649,6 +674,8 @@ int dev_pm_qos_expose_flags(struct device *dev, s32 val) } pm_runtime_get_sync(dev); + mutex_lock(&dev_pm_qos_sysfs_mtx); + mutex_lock(&dev_pm_qos_mtx); if (IS_ERR_OR_NULL(dev->power.qos)) @@ -659,16 +686,19 @@ int dev_pm_qos_expose_flags(struct device *dev, s32 val) if (ret < 0) { __dev_pm_qos_remove_request(req); kfree(req); + mutex_unlock(&dev_pm_qos_mtx); goto out; } - dev->power.qos->flags_req = req; + + mutex_unlock(&dev_pm_qos_mtx); + ret = pm_qos_sysfs_add_flags(dev); if (ret) - __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_FLAGS); + dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_FLAGS); out: - mutex_unlock(&dev_pm_qos_mtx); + mutex_unlock(&dev_pm_qos_sysfs_mtx); pm_runtime_put(dev); return ret; } @@ -676,10 +706,8 @@ EXPORT_SYMBOL_GPL(dev_pm_qos_expose_flags); static void __dev_pm_qos_hide_flags(struct device *dev) { - if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->flags_req) { - pm_qos_sysfs_remove_flags(dev); + if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->flags_req) __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_FLAGS); - } } /** @@ -689,9 +717,15 @@ static void __dev_pm_qos_hide_flags(struct device *dev) void dev_pm_qos_hide_flags(struct device *dev) { pm_runtime_get_sync(dev); + mutex_lock(&dev_pm_qos_sysfs_mtx); + + pm_qos_sysfs_remove_flags(dev); + mutex_lock(&dev_pm_qos_mtx); __dev_pm_qos_hide_flags(dev); mutex_unlock(&dev_pm_qos_mtx); + + mutex_unlock(&dev_pm_qos_sysfs_mtx); pm_runtime_put(dev); } EXPORT_SYMBOL_GPL(dev_pm_qos_hide_flags); -- cgit v0.10.2 From 5faaa035ddc16d3d2e31c0bfc1c4756b6869dbcc Mon Sep 17 00:00:00 2001 From: Rajagopal Venkat Date: Thu, 21 Mar 2013 13:28:25 +0000 Subject: PM / devfreq: Fix compiler warnings for CONFIG_PM_DEVFREQ unset Fix compiler warnings generated when devfreq is not enabled (CONFIG_PM_DEVFREQ is not set). Signed-off-by: Rajagopal Venkat Acked-by: MyungJoo Ham Signed-off-by: Rafael J. Wysocki diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index e83ef39..fe8c447 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -213,7 +213,7 @@ struct devfreq_simple_ondemand_data { #endif #else /* !CONFIG_PM_DEVFREQ */ -static struct devfreq *devfreq_add_device(struct device *dev, +static inline struct devfreq *devfreq_add_device(struct device *dev, struct devfreq_dev_profile *profile, const char *governor_name, void *data) @@ -221,34 +221,34 @@ static struct devfreq *devfreq_add_device(struct device *dev, return NULL; } -static int devfreq_remove_device(struct devfreq *devfreq) +static inline int devfreq_remove_device(struct devfreq *devfreq) { return 0; } -static int devfreq_suspend_device(struct devfreq *devfreq) +static inline int devfreq_suspend_device(struct devfreq *devfreq) { return 0; } -static int devfreq_resume_device(struct devfreq *devfreq) +static inline int devfreq_resume_device(struct devfreq *devfreq) { return 0; } -static struct opp *devfreq_recommended_opp(struct device *dev, +static inline struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, u32 flags) { - return -EINVAL; + return ERR_PTR(-EINVAL); } -static int devfreq_register_opp_notifier(struct device *dev, +static inline int devfreq_register_opp_notifier(struct device *dev, struct devfreq *devfreq) { return -EINVAL; } -static int devfreq_unregister_opp_notifier(struct device *dev, +static inline int devfreq_unregister_opp_notifier(struct device *dev, struct devfreq *devfreq) { return -EINVAL; -- cgit v0.10.2 From f5c3ef21db149ba573a3f079df287f3d8b05ee13 Mon Sep 17 00:00:00 2001 From: Paolo Pisati Date: Thu, 28 Mar 2013 09:24:29 +0000 Subject: cpufreq: check OF node /cpus presence before dereferencing it Check for the presence of the '/cpus' OF node before dereferencing it blindly: [ 4.181793] Unable to handle kernel NULL pointer dereference at virtual address 0000001c [ 4.181793] pgd = c0004000 [ 4.181823] [0000001c] *pgd=00000000 [ 4.181823] Internal error: Oops: 5 [#1] SMP ARM [ 4.181823] Modules linked in: [ 4.181823] CPU: 1 Tainted: G W (3.8.0-15-generic #25~hbankD) [ 4.181854] PC is at of_get_next_child+0x64/0x70 [ 4.181854] LR is at of_get_next_child+0x24/0x70 [ 4.181854] pc : [] lr : [] psr: 60000113 [ 4.181854] sp : ed891ec0 ip : ed891ec0 fp : ed891ed4 [ 4.181884] r10: c04dafd0 r9 : c098690c r8 : c0936208 [ 4.181884] r7 : ed890000 r6 : c0a63d00 r5 : 00000000 r4 : 00000000 [ 4.181884] r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : c0b2acc8 [ 4.181884] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 4.181884] Control: 10c5387d Table: adcb804a DAC: 00000015 [ 4.181915] Process swapper/0 (pid: 1, stack limit = 0xed890238) [ 4.181915] Stack: (0xed891ec0 to 0xed892000) [ 4.181915] 1ec0: c09b7b70 00000007 ed891efc ed891ed8 c04daff4 c04fd9c0 00000000 c09b7b70 [ 4.181915] 1ee0: 00000007 c0a63d00 ed890000 c0936208 ed891f54 ed891f00 c00088e0 c04dafdc [ 4.181945] 1f00: ed891f54 ed891f10 c006e940 00000000 00000000 00000007 00000007 c08a4914 [ 4.181945] 1f20: 00000000 c07dbd30 c0a63d00 c09b7b70 00000007 c0a63d00 000000bc c0936208 [ 4.181945] 1f40: c098690c c0986914 ed891f94 ed891f58 c0936a40 c00087bc 00000007 00000007 [ 4.181976] 1f60: c0936208 be8bda20 b6eea010 c0a63d00 c064547c 00000000 00000000 00000000 [ 4.181976] 1f80: 00000000 00000000 ed891fac ed891f98 c0645498 c09368c8 00000000 00000000 [ 4.181976] 1fa0: 00000000 ed891fb0 c0014658 c0645488 00000000 00000000 00000000 00000000 [ 4.182006] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.182006] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [ 4.182037] [] (of_get_next_child+0x64/0x70) from [] (cpu0_cpufreq_driver_init+0x24/0x284) [ 4.182067] [] (cpu0_cpufreq_driver_init+0x24/0x284) from [] (do_one_initcall+0x130/0x1b0) [ 4.182067] [] (do_one_initcall+0x130/0x1b0) from [] (kernel_init_freeable+0x184/0x24c) [ 4.182098] [] (kernel_init_freeable+0x184/0x24c) from [] (kernel_init+0x1c/0xf4) [ 4.182128] [] (kernel_init+0x1c/0xf4) from [] (ret_from_fork+0x14/0x20) [ 4.182128] Code: f57ff04f e320f004 e89da830 e89da830 (e595001c) [ 4.182128] ---[ end trace 634903a22e8609cb ]--- [ 4.182189] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 4.182189] [ 4.642395] CPU0: stopping [rjw: Changelog] Signed-off-by: Paolo Pisati Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 4e5b7fb..37d23a0 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -178,10 +178,16 @@ static struct cpufreq_driver cpu0_cpufreq_driver = { static int cpu0_cpufreq_probe(struct platform_device *pdev) { - struct device_node *np; + struct device_node *np, *parent; int ret; - for_each_child_of_node(of_find_node_by_path("/cpus"), np) { + parent = of_find_node_by_path("/cpus"); + if (!parent) { + pr_err("failed to find OF /cpus\n"); + return -ENOENT; + } + + for_each_child_of_node(parent, np) { if (of_get_property(np, "operating-points", NULL)) break; } -- cgit v0.10.2 From 29896178cff0cd6e4ee78edc26158cc197a6b504 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 1 Apr 2013 00:21:08 +0000 Subject: ACPI / SPI: Use parent's ACPI_HANDLE() in acpi_register_spi_devices() The ACPI handle of struct spi_master's dev member should not be set, because this causes that struct spi_master to be associated with the ACPI device node corresponding to its parent as the second "physical_device", which is incorrect (this happens during the registration of struct spi_master). Consequently, acpi_register_spi_devices() should use the ACPI handle of the parent of the struct spi_master it is called for rather than that struct spi_master's ACPI handle (which should be NULL). Make that happen and modify the spi-pxa2xx driver, which currently is the only driver for ACPI-enumerated SPI controller chips, not to set the ACPI handle for the struct spi_master it creates. Signed-off-by: Rafael J. Wysocki Acked-by: Mika Westerberg Acked-by: Mark Brown diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 90b27a3..8104138 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1168,7 +1168,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) master->dev.parent = &pdev->dev; master->dev.of_node = pdev->dev.of_node; - ACPI_HANDLE_SET(&master->dev, ACPI_HANDLE(&pdev->dev)); /* the spi->mode bits understood by this driver: */ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP; diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index f996c60..5e073d8 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -984,7 +984,7 @@ static void acpi_register_spi_devices(struct spi_master *master) acpi_status status; acpi_handle handle; - handle = ACPI_HANDLE(&master->dev); + handle = ACPI_HANDLE(master->dev.parent); if (!handle) return; -- cgit v0.10.2 From ea81531de23cf92085e0601178fae920141caa5d Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 21 Mar 2013 12:50:39 +0100 Subject: s390/uaccess: fix page table walk When translating user space addresses to kernel addresses the follow_table() function had two bugs: - PROT_NONE mappings could be read accessed via the kernel mapping. That is e.g. putting a filename into a user page, then protecting the page with PROT_NONE and afterwards issuing the "open" syscall with a pointer to the filename would incorrectly succeed. - when walking the page tables it used the pgd/pud/pmd/pte primitives which with dynamic page tables give no indication which real level of page tables is being walked (region2, region3, segment or page table). So in case of an exception the translation exception code passed to __handle_fault() is not necessarily correct. This is not really an issue since __handle_fault() doesn't evaluate the code. Only in case of e.g. a SIGBUS this code gets passed to user space. If user space can do something sane with the value is a different question though. To fix these issues don't use any Linux primitives. Only walk the page tables like the hardware would do it, however we leave quite some checks away since we know that we only have full size page tables and each index is within bounds. In theory this should fix all issues... Signed-off-by: Heiko Carstens Reviewed-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 4a29308..1686d8f 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -344,6 +344,7 @@ extern unsigned long MODULES_END; #define _REGION3_ENTRY_CO 0x100 /* change-recording override */ /* Bits in the segment table entry */ +#define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address */ #define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* segment table origin */ #define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ #define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 6771fdd..466fb33 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -77,42 +77,69 @@ static size_t copy_in_kernel(size_t count, void __user *to, * >= -4095 (IS_ERR_VALUE(x) returns true), a fault has occured and the address * contains the (negative) exception code. */ -static __always_inline unsigned long follow_table(struct mm_struct *mm, - unsigned long addr, int write) +#ifdef CONFIG_64BIT +static unsigned long follow_table(struct mm_struct *mm, + unsigned long address, int write) { - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *ptep; + unsigned long *table = (unsigned long *)__pa(mm->pgd); + + switch (mm->context.asce_bits & _ASCE_TYPE_MASK) { + case _ASCE_TYPE_REGION1: + table = table + ((address >> 53) & 0x7ff); + if (unlikely(*table & _REGION_ENTRY_INV)) + return -0x39UL; + table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); + case _ASCE_TYPE_REGION2: + table = table + ((address >> 42) & 0x7ff); + if (unlikely(*table & _REGION_ENTRY_INV)) + return -0x3aUL; + table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); + case _ASCE_TYPE_REGION3: + table = table + ((address >> 31) & 0x7ff); + if (unlikely(*table & _REGION_ENTRY_INV)) + return -0x3bUL; + table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); + case _ASCE_TYPE_SEGMENT: + table = table + ((address >> 20) & 0x7ff); + if (unlikely(*table & _SEGMENT_ENTRY_INV)) + return -0x10UL; + if (unlikely(*table & _SEGMENT_ENTRY_LARGE)) { + if (write && (*table & _SEGMENT_ENTRY_RO)) + return -0x04UL; + return (*table & _SEGMENT_ENTRY_ORIGIN_LARGE) + + (address & ~_SEGMENT_ENTRY_ORIGIN_LARGE); + } + table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN); + } + table = table + ((address >> 12) & 0xff); + if (unlikely(*table & _PAGE_INVALID)) + return -0x11UL; + if (write && (*table & _PAGE_RO)) + return -0x04UL; + return (*table & PAGE_MASK) + (address & ~PAGE_MASK); +} - pgd = pgd_offset(mm, addr); - if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd))) - return -0x3aUL; +#else /* CONFIG_64BIT */ - pud = pud_offset(pgd, addr); - if (pud_none(*pud) || unlikely(pud_bad(*pud))) - return -0x3bUL; +static unsigned long follow_table(struct mm_struct *mm, + unsigned long address, int write) +{ + unsigned long *table = (unsigned long *)__pa(mm->pgd); - pmd = pmd_offset(pud, addr); - if (pmd_none(*pmd)) + table = table + ((address >> 20) & 0x7ff); + if (unlikely(*table & _SEGMENT_ENTRY_INV)) return -0x10UL; - if (pmd_large(*pmd)) { - if (write && (pmd_val(*pmd) & _SEGMENT_ENTRY_RO)) - return -0x04UL; - return (pmd_val(*pmd) & HPAGE_MASK) + (addr & ~HPAGE_MASK); - } - if (unlikely(pmd_bad(*pmd))) - return -0x10UL; - - ptep = pte_offset_map(pmd, addr); - if (!pte_present(*ptep)) + table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN); + table = table + ((address >> 12) & 0xff); + if (unlikely(*table & _PAGE_INVALID)) return -0x11UL; - if (write && (!pte_write(*ptep) || !pte_dirty(*ptep))) + if (write && (*table & _PAGE_RO)) return -0x04UL; - - return (pte_val(*ptep) & PAGE_MASK) + (addr & ~PAGE_MASK); + return (*table & PAGE_MASK) + (address & ~PAGE_MASK); } +#endif /* CONFIG_64BIT */ + static __always_inline size_t __user_copy_pt(unsigned long uaddr, void *kptr, size_t n, int write_user) { -- cgit v0.10.2 From 765a0cac566c938821ae26efb4aa53b7502ee82c Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Sat, 23 Mar 2013 10:29:01 +0100 Subject: s390/mm: provide emtpy check_pgt_cache() function All architectures need to provide a check_pgt_cache() function. The s390 one got lost somewhere. So reintroduce it to prevent future compile errors e.g. if Thomas Gleixner's idle loop rework patches get merged. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 1686d8f..4a54431 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1532,7 +1532,8 @@ extern int s390_enable_sie(void); /* * No page table caches to initialise */ -#define pgtable_cache_init() do { } while (0) +static inline void pgtable_cache_init(void) { } +static inline void check_pgt_cache(void) { } #include -- cgit v0.10.2 From 2ef5692efad330b67a234e2c49edad38538751e7 Mon Sep 17 00:00:00 2001 From: Mengdong Lin Date: Thu, 28 Mar 2013 05:20:22 -0400 Subject: ALSA: hda - bug fix on return value when getting HDMI ELD info In function snd_hdmi_get_eld(), the variable 'ret' should be initialized to 0. Otherwise it will be returned uninitialized as non-zero after ELD info is got successfully. Thus hdmi_present_sense() will always assume ELD info is invalid by mistake, and /proc file system cannot show the proper ELD info. Signed-off-by: Mengdong Lin Cc: stable@vger.kernel.org Acked-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 7dd8463..d0d7ac1 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -320,7 +320,7 @@ int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid, unsigned char *buf, int *eld_size) { int i; - int ret; + int ret = 0; int size; /* -- cgit v0.10.2 From 10250911c6f3531e9c2f4f1c6017782bc9bcd6d4 Mon Sep 17 00:00:00 2001 From: Mengdong Lin Date: Thu, 28 Mar 2013 05:21:28 -0400 Subject: ALSA: hda - bug fix on HDMI ELD debug message This patch let ELD debug message show 'pin_eld->monitor_present' which reflects the real pin response to verb GET_PIN_SENSE. 'eld->monitor_present' should not be used here because 'eld' is a temp structure now and so its "monitor_present" is not set. Signed-off-by: Mengdong Lin Acked-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 78e1827..de8ac5c 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1196,7 +1196,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll) _snd_printd(SND_PR_VERBOSE, "HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n", - codec->addr, pin_nid, eld->monitor_present, eld->eld_valid); + codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid); if (eld->eld_valid) { if (snd_hdmi_get_eld(codec, pin_nid, eld->eld_buffer, -- cgit v0.10.2 From 477fc03f5baaf5906ce04beba7dbcd0e5d1e9b30 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Fri, 29 Mar 2013 03:40:00 +0200 Subject: fbmon: use VESA_DMT_VSYNC_HIGH to fix typo VESA_DMT_VSYNC_HIGH should be used instead of VESA_DMT_HSYNC_HIGH, because FB_SYNC_VERT_HIGH_ACT is related to vsync, not to hsync. Signed-off-by: Jingoo Han Acked-by: Steffen Trumtrar Signed-off-by: Tomi Valkeinen diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c index 94ad0f7..7f67099 100644 --- a/drivers/video/fbmon.c +++ b/drivers/video/fbmon.c @@ -1400,7 +1400,7 @@ int fb_videomode_from_videomode(const struct videomode *vm, fbmode->vmode = 0; if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) fbmode->sync |= FB_SYNC_HOR_HIGH_ACT; - if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) + if (vm->dmt_flags & VESA_DMT_VSYNC_HIGH) fbmode->sync |= FB_SYNC_VERT_HIGH_ACT; if (vm->data_flags & DISPLAY_FLAGS_INTERLACED) fbmode->vmode |= FB_VMODE_INTERLACED; -- cgit v0.10.2 From 090da752cdd6f0786eee68c8dea8db7c8abd3798 Mon Sep 17 00:00:00 2001 From: Wang YanQing Date: Sat, 30 Mar 2013 04:53:00 +0200 Subject: video:uvesafb: Fix dereference NULL pointer code path platform_device_alloc could failed and return NULL, we should check this before call platform_device_put. Signed-off-by: Wang YanQing Signed-off-by: Tomi Valkeinen diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c index b75db01..d428445 100644 --- a/drivers/video/uvesafb.c +++ b/drivers/video/uvesafb.c @@ -1973,7 +1973,8 @@ static int uvesafb_init(void) err = -ENOMEM; if (err) { - platform_device_put(uvesafb_device); + if (uvesafb_device) + platform_device_put(uvesafb_device); platform_driver_unregister(&uvesafb_driver); cn_del_callback(&uvesafb_cn_id); return err; -- cgit v0.10.2 From beb0ff390e208e71668a1389e3db02631a88cff5 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Tue, 2 Apr 2013 12:26:15 +0000 Subject: cpufreq: Correct header guards typo It should be "governor". Signed-off-by: Borislav Petkov Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h index 46bde01..cc4bd2f 100644 --- a/drivers/cpufreq/cpufreq_governor.h +++ b/drivers/cpufreq/cpufreq_governor.h @@ -14,8 +14,8 @@ * published by the Free Software Foundation. */ -#ifndef _CPUFREQ_GOVERNER_H -#define _CPUFREQ_GOVERNER_H +#ifndef _CPUFREQ_GOVERNOR_H +#define _CPUFREQ_GOVERNOR_H #include #include @@ -175,4 +175,4 @@ bool need_load_eval(struct cpu_dbs_common_info *cdbs, unsigned int sampling_rate); int cpufreq_governor_dbs(struct dbs_data *dbs_data, struct cpufreq_policy *policy, unsigned int event); -#endif /* _CPUFREQ_GOVERNER_H */ +#endif /* _CPUFREQ_GOVERNOR_H */ -- cgit v0.10.2 From b34bb1ee71158d5b0f9028fb98afd026202bcfe9 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 1 Apr 2013 00:25:03 +0000 Subject: ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices() The ACPI handle of struct i2c_adapter's dev member should not be set, because this causes that struct i2c_adapter to be associated with the ACPI device node corresponding to its parent as the second "physical_device", which is incorrect (this happens during the registration of struct i2c_adapter). Consequently, acpi_i2c_register_devices() should use the ACPI handle of the parent of the struct i2c_adapter it is called for rather than the struct i2c_adapter's ACPI handle (which should be NULL). Make that happen and modify the i2c-designware-platdrv driver, which currently is the only driver for ACPI-enumerated I2C controller chips, not to set the ACPI handle for the struct i2c_adapter it creates. Signed-off-by: Rafael J. Wysocki Reviewed-by: Aaron Lu Acked-by: Mika Westerberg Acked-by: Wolfram Sang diff --git a/drivers/acpi/acpi_i2c.c b/drivers/acpi/acpi_i2c.c index 82045e3..a82c762 100644 --- a/drivers/acpi/acpi_i2c.c +++ b/drivers/acpi/acpi_i2c.c @@ -90,7 +90,7 @@ void acpi_i2c_register_devices(struct i2c_adapter *adapter) acpi_handle handle; acpi_status status; - handle = ACPI_HANDLE(&adapter->dev); + handle = ACPI_HANDLE(adapter->dev.parent); if (!handle) return; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 0ceb6e1..e3085c4 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -182,7 +182,6 @@ static int dw_i2c_probe(struct platform_device *pdev) adap->algo = &i2c_dw_algo; adap->dev.parent = &pdev->dev; adap->dev.of_node = pdev->dev.of_node; - ACPI_HANDLE_SET(&adap->dev, ACPI_HANDLE(&pdev->dev)); r = i2c_add_numbered_adapter(adap); if (r) { -- cgit v0.10.2 From 6240a10dc55a954ce05a86d2f4bc27e473b6352c Mon Sep 17 00:00:00 2001 From: Alex Shi Date: Tue, 2 Apr 2013 01:56:54 +0200 Subject: cpuidle / ACPI: recover percpu ACPI processor cstate Commit ac3ebafa81af76d6 "ACPI / idle: remove usage of the statedata" changed the percpu processor cstate to a unified cstate in ACPI idle. That caused all our NHM boxes to boot hang or panic. 2178751 Task dump for CPU 1: 2178752 swapper/1 R running task 6736 0 1 0x00000000 2178753 ffff8801e8029dc8 ffffffff8101cf96 ffff8801e8029e28 ffffffff813d294b 2178754 0000000000000f99 0000000000000003 00000000003cf654 0000000025c17d03 2178755 ffff8801e8029e38 ffff8801e74fc000 00000002590dc5c4 ffffffff8163cdb0 2178756 Call Trace: 2178757 [] ? acpi_processor_ffh_cstate_enter+0x2d/0x2f 2178758 [] acpi_idle_enter_bm+0x1b1/0x236 2178759 [] ? disable_cpuidle+0x10/0x10 2178760 [] cpuidle_enter+0x12/0x14 2178761 [] cpuidle_wrap_enter+0x2f/0x6d 2178762 [] cpuidle_enter_tk+0x10/0x12 2178763 [] cpuidle_enter_state+0x12/0x3a 2178764 [] cpuidle_idle_call+0xe8/0x161 2178765 [] cpu_idle+0x5e/0xa4 2178766 [] start_secondary+0x1a9/0x1ad 2178767 Task dump for CPU 2: In fact, the ACPI idle is based on the assumption of difference percpu cstate structures that are necessary for the implementation to work cprrectly. A unique acpi_processor_cx is not sifficient by far. This patch is just a quick fix re-introducing the percpu cstates. If someone really wants to unify the ACPI cstates, please make sure that the whole software infrastructure is changed and take hardware as well as many different kinds of BIOS settings into account. [rjw: Changelog] Reported-by: LKP project Reported-by: Xie ChanglongX Tested-by: Yinghai Lu Signed-off-by: Alex Shi Signed-off-by: Rafael J. Wysocki diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index fc95308..ee255c6 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -66,7 +66,8 @@ module_param(latency_factor, uint, 0644); static DEFINE_PER_CPU(struct cpuidle_device *, acpi_cpuidle_device); -static struct acpi_processor_cx *acpi_cstate[CPUIDLE_STATE_MAX]; +static DEFINE_PER_CPU(struct acpi_processor_cx * [CPUIDLE_STATE_MAX], + acpi_cstate); static int disabled_by_idle_boot_param(void) { @@ -722,7 +723,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { struct acpi_processor *pr; - struct acpi_processor_cx *cx = acpi_cstate[index]; + struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); pr = __this_cpu_read(processors); @@ -745,7 +746,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, */ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) { - struct acpi_processor_cx *cx = acpi_cstate[index]; + struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); ACPI_FLUSH_CPU_CACHE(); @@ -775,7 +776,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { struct acpi_processor *pr; - struct acpi_processor_cx *cx = acpi_cstate[index]; + struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); pr = __this_cpu_read(processors); @@ -833,7 +834,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { struct acpi_processor *pr; - struct acpi_processor_cx *cx = acpi_cstate[index]; + struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu); pr = __this_cpu_read(processors); @@ -960,7 +961,7 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr, !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) continue; #endif - acpi_cstate[count] = cx; + per_cpu(acpi_cstate[count], dev->cpu) = cx; count++; if (count == CPUIDLE_STATE_MAX) -- cgit v0.10.2 From 906b1c394d0906a154fbdc904ca506bceb515756 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Sat, 30 Mar 2013 10:23:12 +0000 Subject: netfilter: ip6t_NPT: Fix translation for non-multiple of 32 prefix lengths The bitmask used for the prefix mangling was being calculated incorrectly, leading to the wrong part of the address being replaced when the prefix length wasn't a multiple of 32. Signed-off-by: Matthias Schiffer Signed-off-by: Pablo Neira Ayuso diff --git a/net/ipv6/netfilter/ip6t_NPT.c b/net/ipv6/netfilter/ip6t_NPT.c index 33608c6..cb63114 100644 --- a/net/ipv6/netfilter/ip6t_NPT.c +++ b/net/ipv6/netfilter/ip6t_NPT.c @@ -57,7 +57,7 @@ static bool ip6t_npt_map_pfx(const struct ip6t_npt_tginfo *npt, if (pfx_len - i >= 32) mask = 0; else - mask = htonl(~((1 << (pfx_len - i)) - 1)); + mask = htonl((1 << (i - pfx_len + 32)) - 1); idx = i / 32; addr->s6_addr32[idx] &= mask; -- cgit v0.10.2 From e66cd5372d09d58002b2779a3bcdc564d6348883 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Wed, 3 Apr 2013 13:17:20 +0200 Subject: ACPI / BGRT: Don't let users configure BGRT on non X86 systems Fengguang Wu's 0-Day kernel build testing backend found the following build error for an allmodconfig build on ia64: drivers/built-in.o: In function `show_yoffset': >> bgrt.c:(.text+0xe5a71): undefined reference to `bgrt_tab' >> bgrt.c:(.text+0xe5a91): undefined reference to `bgrt_tab' drivers/built-in.o: In function `show_xoffset': >> bgrt.c:(.text+0xe5b51): undefined reference to `bgrt_tab' >> bgrt.c:(.text+0xe5b71): undefined reference to `bgrt_tab' drivers/built-in.o: In function `show_type': >> bgrt.c:(.text+0xe5c31): undefined reference to `bgrt_tab' drivers/built-in.o:bgrt.c:(.text+0xe5c51): more undefined references to `bgrt_tab' follow drivers/built-in.o: In function `bgrt_init': bgrt.c:(.init.text+0x8931): undefined reference to `bgrt_image' bgrt.c:(.init.text+0x8932): undefined reference to `bgrt_image_size' bgrt.c:(.init.text+0x8950): undefined reference to `bgrt_image' bgrt.c:(.init.text+0x8960): undefined reference to `bgrt_image_size' The problem is that all these undefined names are provided by arch/x86/platform/efi/efi-bgrt.c - which is obviously not available to the ia64 build. It doesn't seem useful to provide the BGRT support for Itanium (many systems are headless and have no graphics at all). So just don't let users configure this driver on non-X86 machines. Reported-by: Fengguang Wu Acked-by: H. Peter Anvin Signed-off-by: Tony Luck Signed-off-by: Rafael J. Wysocki diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 92ed969..4bf68c8 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -396,7 +396,7 @@ config ACPI_CUSTOM_METHOD config ACPI_BGRT bool "Boottime Graphics Resource Table support" - depends on EFI + depends on EFI && X86 help This driver adds support for exposing the ACPI Boottime Graphics Resource Table, which allows the operating system to obtain -- cgit v0.10.2 From 690a863ff03d9a29ace2b752b8f802fba78a842f Mon Sep 17 00:00:00 2001 From: Torstein Hegge Date: Tue, 26 Mar 2013 22:10:05 +0100 Subject: ALSA: usb: Work around CM6631 sample rate change bug The C-Media CM6631 USB receiver doesn't respond to changes in sample rate while the interface is active. The same behavior is observed in other UAC2 hardware like the VIA VT1731. Reset the interface after setting the sampling frequency on sample rate changes, to ensure that the sample rate set by snd_usb_init_sample_rate() is used. Otherwise, the device will try to use the sample rate of the previous stream, causing distorted sound on sample rate changes. The reset is performed for all UAC2 devices, as it should not affect a standards compliant device, but it is only necessary for C-Media CM6631, VIA VT1731 and possibly others. Failure to read sample rate from the device is not handled as an error in set_sample_rate_v2(), as (permanent or intermittent) failure to read sample rate isn't essential for a successful sample rate set. Signed-off-by: Torstein Hegge Acked-by: Clemens Ladisch Signed-off-by: Takashi Iwai diff --git a/sound/usb/clock.c b/sound/usb/clock.c index 5e634a2..9e2703a 100644 --- a/sound/usb/clock.c +++ b/sound/usb/clock.c @@ -253,7 +253,7 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface, { struct usb_device *dev = chip->dev; unsigned char data[4]; - int err, crate; + int err, cur_rate, prev_rate; int clock = snd_usb_clock_find_source(chip, fmt->clock); if (clock < 0) @@ -266,6 +266,19 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface, return -ENXIO; } + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), + data, sizeof(data)); + if (err < 0) { + snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq (v2)\n", + dev->devnum, iface, fmt->altsetting); + prev_rate = 0; + } else { + prev_rate = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24); + } + data[0] = rate; data[1] = rate >> 8; data[2] = rate >> 16; @@ -280,19 +293,31 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface, return err; } - if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, - USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, - UAC2_CS_CONTROL_SAM_FREQ << 8, - snd_usb_ctrl_intf(chip) | (clock << 8), - data, sizeof(data))) < 0) { + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), + data, sizeof(data)); + if (err < 0) { snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq (v2)\n", dev->devnum, iface, fmt->altsetting); - return err; + cur_rate = 0; + } else { + cur_rate = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24); } - crate = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24); - if (crate != rate) - snd_printd(KERN_WARNING "current rate %d is different from the runtime rate %d\n", crate, rate); + if (cur_rate != rate) { + snd_printd(KERN_WARNING + "current rate %d is different from the runtime rate %d\n", + cur_rate, rate); + } + + /* Some devices doesn't respond to sample rate changes while the + * interface is active. */ + if (rate != prev_rate) { + usb_set_interface(dev, iface, 0); + usb_set_interface(dev, iface, fmt->altsetting); + } return 0; } -- cgit v0.10.2 From 698613b63817f2f6ca79831cd1c37aae67025323 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 3 Apr 2013 16:33:26 +0100 Subject: ARM: iWMMXt: always enable iWMMXt support with PJ4 CPUs Jason Cooper reports these build errors: arch/arm/kernel/built-in.o: In function `iwmmxt_do': /.../arch/arm/kernel/pj4-cp0.c:36: undefined reference to `iwmmxt_task_release' /.../arch/arm/kernel/pj4-cp0.c:40: undefined reference to `iwmmxt_task_switch' make: *** [vmlinux] Error 1 This is caused because the PJ4 code explicitly references the iWMMXt code, but doesn't require it to be built. Fix this by ensuring that iWMMXt is always enabled with PJ4. Reported-by: Jason Cooper Signed-off-by: Russell King diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13b7394..12ea3b3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1183,9 +1183,9 @@ config ARM_NR_BANKS default 8 config IWMMXT - bool "Enable iWMMXt support" + bool "Enable iWMMXt support" if !CPU_PJ4 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 - default y if PXA27x || PXA3xx || ARCH_MMP + default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 help Enable support for iWMMXt context switching at run time if running on a CPU that supports it. -- cgit v0.10.2 From 6e7aceeb7c70b9ebad79bcfe91fcf738826e8e6d Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 25 Mar 2013 17:02:48 +0100 Subject: ARM: 7682/1: cache-l2x0: fix masking of RTL revision numbering and set_debug init Commit b8db6b8 (ARM: 7547/4: cache-l2x0: add support for Aurora L2 cache ctrl) moved the masking of the part ID which caused the RTL version to be lost. Commit 6248d06 (ARM: 7545/1: cache-l2x0: make outer_cache_fns a field of l2x0_of_data) changed how .set_debug is initialized. Both commits break commit 74ddcdb (ARM: 7608/1: l2x0: Only set .set_debug on PL310 r3p0 and earlier) which uses the RTL version to conditionally set .set_debug function pointer. Commit b8db6b8 also caused the printed cache ID to be missing the version information. Fix this by reverting how the part number is masked so the RTL version info is maintained. The cache-id-part DT property does not set the RTL bits so masking them should have no effect. Also, re-arrange the order of the function pointer init so the .set_debug function can be overridden. Reported-by: Paolo Pisati Signed-off-by: Rob Herring Cc: Gregory CLEMENT Cc: Yehuda Yitschak Signed-off-by: Russell King diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index c2f3739..c465fac 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -299,7 +299,7 @@ static void l2x0_unlock(u32 cache_id) int lockregs; int i; - switch (cache_id) { + switch (cache_id & L2X0_CACHE_ID_PART_MASK) { case L2X0_CACHE_ID_PART_L310: lockregs = 8; break; @@ -333,15 +333,14 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) if (cache_id_part_number_from_dt) cache_id = cache_id_part_number_from_dt; else - cache_id = readl_relaxed(l2x0_base + L2X0_CACHE_ID) - & L2X0_CACHE_ID_PART_MASK; + cache_id = readl_relaxed(l2x0_base + L2X0_CACHE_ID); aux = readl_relaxed(l2x0_base + L2X0_AUX_CTRL); aux &= aux_mask; aux |= aux_val; /* Determine the number of ways */ - switch (cache_id) { + switch (cache_id & L2X0_CACHE_ID_PART_MASK) { case L2X0_CACHE_ID_PART_L310: if (aux & (1 << 16)) ways = 16; @@ -725,7 +724,6 @@ static const struct l2x0_of_data pl310_data = { .flush_all = l2x0_flush_all, .inv_all = l2x0_inv_all, .disable = l2x0_disable, - .set_debug = pl310_set_debug, }, }; @@ -814,9 +812,8 @@ int __init l2x0_of_init(u32 aux_val, u32 aux_mask) data->save(); of_init = true; - l2x0_init(l2x0_base, aux_val, aux_mask); - memcpy(&outer_cache, &data->outer_cache, sizeof(outer_cache)); + l2x0_init(l2x0_base, aux_val, aux_mask); return 0; } -- cgit v0.10.2 From 93dc68876b608da041fe40ed39424b0fcd5aa2fb Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 26 Mar 2013 23:35:04 +0100 Subject: ARM: 7684/1: errata: Workaround for Cortex-A15 erratum 798181 (TLBI/DSB operations) On Cortex-A15 (r0p0..r3p2) the TLBI/DSB are not adequately shooting down all use of the old entries. This patch implements the erratum workaround which consists of: 1. Dummy TLBIMVAIS and DSB on the CPU doing the TLBI operation. 2. Send IPI to the CPUs that are running the same mm (and ASID) as the one being invalidated (or all the online CPUs for global pages). 3. CPU receiving the IPI executes a DMB and CLREX (part of the exception return code already). Signed-off-by: Catalin Marinas Signed-off-by: Russell King diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 12ea3b3..1cacda4 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1439,6 +1439,16 @@ config ARM_ERRATA_775420 to deadlock. This workaround puts DSB before executing ISB if an abort may occur on cache maintenance. +config ARM_ERRATA_798181 + bool "ARM errata: TLBI/DSB failure on Cortex-A15" + depends on CPU_V7 && SMP + help + On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not + adequately shooting down all use of the old entries. This + option enables the Linux kernel workaround for this erratum + which sends an IPI to the CPUs that are running the same ASID + as the one being invalidated. + endmenu source "arch/arm/common/Kconfig" diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h index 8c5e828..91b99ab 100644 --- a/arch/arm/include/asm/highmem.h +++ b/arch/arm/include/asm/highmem.h @@ -41,6 +41,13 @@ extern void kunmap_high(struct page *page); #endif #endif +/* + * Needed to be able to broadcast the TLB invalidation for kmap. + */ +#ifdef CONFIG_ARM_ERRATA_798181 +#undef ARCH_NEEDS_KMAP_HIGH_GET +#endif + #ifdef ARCH_NEEDS_KMAP_HIGH_GET extern void *kmap_high_get(struct page *page); #else diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h index 863a661..a7b85e0 100644 --- a/arch/arm/include/asm/mmu_context.h +++ b/arch/arm/include/asm/mmu_context.h @@ -27,6 +27,8 @@ void __check_vmalloc_seq(struct mm_struct *mm); void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk); #define init_new_context(tsk,mm) ({ atomic64_set(&mm->context.id, 0); 0; }) +DECLARE_PER_CPU(atomic64_t, active_asids); + #else /* !CONFIG_CPU_HAS_ASID */ #ifdef CONFIG_MMU diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h index 4db8c88..9e9c041 100644 --- a/arch/arm/include/asm/tlbflush.h +++ b/arch/arm/include/asm/tlbflush.h @@ -450,6 +450,21 @@ static inline void local_flush_bp_all(void) isb(); } +#ifdef CONFIG_ARM_ERRATA_798181 +static inline void dummy_flush_tlb_a15_erratum(void) +{ + /* + * Dummy TLBIMVAIS. Using the unmapped address 0 and ASID 0. + */ + asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (0)); + dsb(); +} +#else +static inline void dummy_flush_tlb_a15_erratum(void) +{ +} +#endif + /* * flush_pmd_entry * diff --git a/arch/arm/kernel/smp_tlb.c b/arch/arm/kernel/smp_tlb.c index bd03005..e82e1d2 100644 --- a/arch/arm/kernel/smp_tlb.c +++ b/arch/arm/kernel/smp_tlb.c @@ -12,6 +12,7 @@ #include #include +#include /**********************************************************************/ @@ -69,12 +70,72 @@ static inline void ipi_flush_bp_all(void *ignored) local_flush_bp_all(); } +#ifdef CONFIG_ARM_ERRATA_798181 +static int erratum_a15_798181(void) +{ + unsigned int midr = read_cpuid_id(); + + /* Cortex-A15 r0p0..r3p2 affected */ + if ((midr & 0xff0ffff0) != 0x410fc0f0 || midr > 0x413fc0f2) + return 0; + return 1; +} +#else +static int erratum_a15_798181(void) +{ + return 0; +} +#endif + +static void ipi_flush_tlb_a15_erratum(void *arg) +{ + dmb(); +} + +static void broadcast_tlb_a15_erratum(void) +{ + if (!erratum_a15_798181()) + return; + + dummy_flush_tlb_a15_erratum(); + smp_call_function_many(cpu_online_mask, ipi_flush_tlb_a15_erratum, + NULL, 1); +} + +static void broadcast_tlb_mm_a15_erratum(struct mm_struct *mm) +{ + int cpu; + cpumask_t mask = { CPU_BITS_NONE }; + + if (!erratum_a15_798181()) + return; + + dummy_flush_tlb_a15_erratum(); + for_each_online_cpu(cpu) { + if (cpu == smp_processor_id()) + continue; + /* + * We only need to send an IPI if the other CPUs are running + * the same ASID as the one being invalidated. There is no + * need for locking around the active_asids check since the + * switch_mm() function has at least one dmb() (as required by + * this workaround) in case a context switch happens on + * another CPU after the condition below. + */ + if (atomic64_read(&mm->context.id) == + atomic64_read(&per_cpu(active_asids, cpu))) + cpumask_set_cpu(cpu, &mask); + } + smp_call_function_many(&mask, ipi_flush_tlb_a15_erratum, NULL, 1); +} + void flush_tlb_all(void) { if (tlb_ops_need_broadcast()) on_each_cpu(ipi_flush_tlb_all, NULL, 1); else local_flush_tlb_all(); + broadcast_tlb_a15_erratum(); } void flush_tlb_mm(struct mm_struct *mm) @@ -83,6 +144,7 @@ void flush_tlb_mm(struct mm_struct *mm) on_each_cpu_mask(mm_cpumask(mm), ipi_flush_tlb_mm, mm, 1); else local_flush_tlb_mm(mm); + broadcast_tlb_mm_a15_erratum(mm); } void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr) @@ -95,6 +157,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr) &ta, 1); } else local_flush_tlb_page(vma, uaddr); + broadcast_tlb_mm_a15_erratum(vma->vm_mm); } void flush_tlb_kernel_page(unsigned long kaddr) @@ -105,6 +168,7 @@ void flush_tlb_kernel_page(unsigned long kaddr) on_each_cpu(ipi_flush_tlb_kernel_page, &ta, 1); } else local_flush_tlb_kernel_page(kaddr); + broadcast_tlb_a15_erratum(); } void flush_tlb_range(struct vm_area_struct *vma, @@ -119,6 +183,7 @@ void flush_tlb_range(struct vm_area_struct *vma, &ta, 1); } else local_flush_tlb_range(vma, start, end); + broadcast_tlb_mm_a15_erratum(vma->vm_mm); } void flush_tlb_kernel_range(unsigned long start, unsigned long end) @@ -130,6 +195,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end) on_each_cpu(ipi_flush_tlb_kernel_range, &ta, 1); } else local_flush_tlb_kernel_range(start, end); + broadcast_tlb_a15_erratum(); } void flush_bp_all(void) diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index a5a4b2bc..2ac3737 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -48,7 +48,7 @@ static DEFINE_RAW_SPINLOCK(cpu_asid_lock); static atomic64_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION); static DECLARE_BITMAP(asid_map, NUM_USER_ASIDS); -static DEFINE_PER_CPU(atomic64_t, active_asids); +DEFINE_PER_CPU(atomic64_t, active_asids); static DEFINE_PER_CPU(u64, reserved_asids); static cpumask_t tlb_flush_pending; @@ -215,6 +215,7 @@ void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk) if (cpumask_test_and_clear_cpu(cpu, &tlb_flush_pending)) { local_flush_bp_all(); local_flush_tlb_all(); + dummy_flush_tlb_a15_erratum(); } atomic64_set(&per_cpu(active_asids, cpu), asid); -- cgit v0.10.2 From 6f3d90e55660ba42301b5e9c7eed332cc9f70fd7 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 28 Mar 2013 11:17:55 +0100 Subject: ARM: 7685/1: delay: use private ticks_per_jiffy field for timer-based delay ops Commit 70264367a243 ("ARM: 7653/2: do not scale loops_per_jiffy when using a constant delay clock") fixed a problem with our timer-based delay loop, where loops_per_jiffy is scaled by cpufreq yet used directly by the timer delay ops. This patch fixes the problem in a more elegant way by keeping a private ticks_per_jiffy field in the delay ops, independent of loops_per_jiffy and therefore not subject to scaling. The loop-based delay continues to use loops_per_jiffy directly, as it should. Acked-by: Nicolas Pitre Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/include/asm/delay.h b/arch/arm/include/asm/delay.h index 720799f..dff714d 100644 --- a/arch/arm/include/asm/delay.h +++ b/arch/arm/include/asm/delay.h @@ -24,7 +24,7 @@ extern struct arm_delay_ops { void (*delay)(unsigned long); void (*const_udelay)(unsigned long); void (*udelay)(unsigned long); - bool const_clock; + unsigned long ticks_per_jiffy; } arm_delay_ops; #define __delay(n) arm_delay_ops.delay(n) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 79078ed..1f2cccc 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -673,9 +673,6 @@ static int cpufreq_callback(struct notifier_block *nb, if (freq->flags & CPUFREQ_CONST_LOOPS) return NOTIFY_OK; - if (arm_delay_ops.const_clock) - return NOTIFY_OK; - if (!per_cpu(l_p_j_ref, cpu)) { per_cpu(l_p_j_ref, cpu) = per_cpu(cpu_data, cpu).loops_per_jiffy; diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c index 6b93f6a..64dbfa5 100644 --- a/arch/arm/lib/delay.c +++ b/arch/arm/lib/delay.c @@ -58,7 +58,7 @@ static void __timer_delay(unsigned long cycles) static void __timer_const_udelay(unsigned long xloops) { unsigned long long loops = xloops; - loops *= loops_per_jiffy; + loops *= arm_delay_ops.ticks_per_jiffy; __timer_delay(loops >> UDELAY_SHIFT); } @@ -73,11 +73,13 @@ void __init register_current_timer_delay(const struct delay_timer *timer) pr_info("Switching to timer-based delay loop\n"); delay_timer = timer; lpj_fine = timer->freq / HZ; - loops_per_jiffy = lpj_fine; + + /* cpufreq may scale loops_per_jiffy, so keep a private copy */ + arm_delay_ops.ticks_per_jiffy = lpj_fine; arm_delay_ops.delay = __timer_delay; arm_delay_ops.const_udelay = __timer_const_udelay; arm_delay_ops.udelay = __timer_udelay; - arm_delay_ops.const_clock = true; + delay_calibrated = true; } else { pr_info("Ignoring duplicate/late registration of read_current_timer delay\n"); -- cgit v0.10.2 From b21e023ba4003fe4b5c32540e4aee5991c019e92 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Tue, 2 Apr 2013 22:11:46 +0100 Subject: ARM: 7689/1: add unwind annotations to ftrace asm Add unwind annotations to the ftrace assembly code so that the function tracer's stacktracing options (func_stack_trace, etc.) work when CONFIG_ARM_UNWIND is enabled. Signed-off-by: Rabin Vincent Signed-off-by: Russell King diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 3248cde..fefd7f9 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -276,7 +276,13 @@ ENDPROC(ftrace_graph_caller_old) */ .macro mcount_enter +/* + * This pad compensates for the push {lr} at the call site. Note that we are + * unable to unwind through a function which does not otherwise save its lr. + */ + UNWIND(.pad #4) stmdb sp!, {r0-r3, lr} + UNWIND(.save {r0-r3, lr}) .endm .macro mcount_get_lr reg @@ -289,6 +295,7 @@ ENDPROC(ftrace_graph_caller_old) .endm ENTRY(__gnu_mcount_nc) +UNWIND(.fnstart) #ifdef CONFIG_DYNAMIC_FTRACE mov ip, lr ldmia sp!, {lr} @@ -296,17 +303,22 @@ ENTRY(__gnu_mcount_nc) #else __mcount #endif +UNWIND(.fnend) ENDPROC(__gnu_mcount_nc) #ifdef CONFIG_DYNAMIC_FTRACE ENTRY(ftrace_caller) +UNWIND(.fnstart) __ftrace_caller +UNWIND(.fnend) ENDPROC(ftrace_caller) #endif #ifdef CONFIG_FUNCTION_GRAPH_TRACER ENTRY(ftrace_graph_caller) +UNWIND(.fnstart) __ftrace_graph_caller +UNWIND(.fnend) ENDPROC(ftrace_graph_caller) #endif -- cgit v0.10.2 From 4e1db26a0b42e2b6e27c05d68adcc01709c2eed2 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Wed, 3 Apr 2013 12:24:45 +0100 Subject: ARM: 7690/1: mm: fix CONFIG_LPAE typos CONFIG_LPAE doesn't exist: the correct option is CONFIG_ARM_LPAE, so fix up the two typos under arch/arm/. The fix to head.S is slightly scary, but this is just for setting up an early io-mapping for the serial port when running on a big-endian, LPAE system. Since these systems don't exist in the wild (at least, I have no access to one outside of kvmtool, which doesn't provide a serial port suitable for earlyprintk), then we can revisit the code later if it causes any problems. Signed-off-by: Paul Bolle Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index e0eb9a1..8bac553 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -267,7 +267,7 @@ __create_page_tables: addne r6, r6, #1 << SECTION_SHIFT strne r6, [r3] -#if defined(CONFIG_LPAE) && defined(CONFIG_CPU_ENDIAN_BE8) +#if defined(CONFIG_ARM_LPAE) && defined(CONFIG_CPU_ENDIAN_BE8) sub r4, r4, #4 @ Fixup page table pointer @ for 64-bit descriptors #endif diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index f3ac13f..d343a6c 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -544,7 +544,7 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size) size -= start & ~PAGE_MASK; bank->start = PAGE_ALIGN(start); -#ifndef CONFIG_LPAE +#ifndef CONFIG_ARM_LPAE if (bank->start + size < bank->start) { printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in " "32-bit physical address space\n", (long long)start); -- cgit v0.10.2 From 8cde7ad17e4f4ff8d12ff60dd09c0a291cb0b61c Mon Sep 17 00:00:00 2001 From: Zheng Liu Date: Wed, 3 Apr 2013 12:27:18 -0400 Subject: ext4: fix big-endian bugs which could cause fs corruptions When an extent was zeroed out, we forgot to do convert from cpu to le16. It could make us hit a BUG_ON when we try to write dirty pages out. So fix it. [ Also fix a bug found by Dmitry Monakhov where we were missing le32_to_cpu() calls in the new indirect punch hole code. There are a number of other big endian warnings found by static code analyzers, but we'll wait for the next merge window to fix them all up. These fixes are designed to be Obviously Correct by code inspection, and easy to demonstrate that it won't make any difference (and hence, won't introduce any bugs) on little endian architectures such as x86. --tytso ] Signed-off-by: Zheng Liu Signed-off-by: "Theodore Ts'o" Reported-by: CAI Qian Reported-by: Christian Kujau Cc: Dmitry Monakhov diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 56efcaa..9c6d06d 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2999,20 +2999,23 @@ static int ext4_split_extent_at(handle_t *handle, if (split_flag & EXT4_EXT_DATA_VALID1) { err = ext4_ext_zeroout(inode, ex2); zero_ex.ee_block = ex2->ee_block; - zero_ex.ee_len = ext4_ext_get_actual_len(ex2); + zero_ex.ee_len = cpu_to_le16( + ext4_ext_get_actual_len(ex2)); ext4_ext_store_pblock(&zero_ex, ext4_ext_pblock(ex2)); } else { err = ext4_ext_zeroout(inode, ex); zero_ex.ee_block = ex->ee_block; - zero_ex.ee_len = ext4_ext_get_actual_len(ex); + zero_ex.ee_len = cpu_to_le16( + ext4_ext_get_actual_len(ex)); ext4_ext_store_pblock(&zero_ex, ext4_ext_pblock(ex)); } } else { err = ext4_ext_zeroout(inode, &orig_ex); zero_ex.ee_block = orig_ex.ee_block; - zero_ex.ee_len = ext4_ext_get_actual_len(&orig_ex); + zero_ex.ee_len = cpu_to_le16( + ext4_ext_get_actual_len(&orig_ex)); ext4_ext_store_pblock(&zero_ex, ext4_ext_pblock(&orig_ex)); } @@ -3272,7 +3275,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle, if (err) goto out; zero_ex.ee_block = ex->ee_block; - zero_ex.ee_len = ext4_ext_get_actual_len(ex); + zero_ex.ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex)); ext4_ext_store_pblock(&zero_ex, ext4_ext_pblock(ex)); err = ext4_ext_get_access(handle, inode, path + depth); diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index b505a14..a041831 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -1539,9 +1539,9 @@ static int free_hole_blocks(handle_t *handle, struct inode *inode, blk = *i_data; if (level > 0) { ext4_lblk_t first2; - bh = sb_bread(inode->i_sb, blk); + bh = sb_bread(inode->i_sb, le32_to_cpu(blk)); if (!bh) { - EXT4_ERROR_INODE_BLOCK(inode, blk, + EXT4_ERROR_INODE_BLOCK(inode, le32_to_cpu(blk), "Read failure"); return -EIO; } -- cgit v0.10.2 From 1d87caa69c04008e09f5ff47b5e6acb6116febc7 Mon Sep 17 00:00:00 2001 From: Rainer Koenig Date: Thu, 4 Apr 2013 08:40:38 +0200 Subject: ALSA: hda - Enabling Realtek ALC 671 codec * Added the device ID to the modalias list and assinged ALC662 patches for it * Added 4 port support for the device ID 0671 in alc662_parse_auto_config Signed-off-by: Rainer Koenig Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 563c24d..f15c36b 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -3440,7 +3440,8 @@ static int alc662_parse_auto_config(struct hda_codec *codec) const hda_nid_t *ssids; if (codec->vendor_id == 0x10ec0272 || codec->vendor_id == 0x10ec0663 || - codec->vendor_id == 0x10ec0665 || codec->vendor_id == 0x10ec0670) + codec->vendor_id == 0x10ec0665 || codec->vendor_id == 0x10ec0670 || + codec->vendor_id == 0x10ec0671) ssids = alc663_ssids; else ssids = alc662_ssids; @@ -3894,6 +3895,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = { { .id = 0x10ec0665, .name = "ALC665", .patch = patch_alc662 }, { .id = 0x10ec0668, .name = "ALC668", .patch = patch_alc662 }, { .id = 0x10ec0670, .name = "ALC670", .patch = patch_alc662 }, + { .id = 0x10ec0671, .name = "ALC671", .patch = patch_alc662 }, { .id = 0x10ec0680, .name = "ALC680", .patch = patch_alc680 }, { .id = 0x10ec0880, .name = "ALC880", .patch = patch_alc880 }, { .id = 0x10ec0882, .name = "ALC882", .patch = patch_alc882 }, -- cgit v0.10.2 From f1a9a149abc86903e81dd1b2e720f3f89874384b Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Tue, 2 Apr 2013 11:11:52 +0200 Subject: HID: magicmouse: fix race between input_register() and probe() Since kernel 3.7, it appears that the input registration occured before the end of magicmouse_setup_input(). This is shown by receiving a lot of "EV_SYN SYN_REPORT 1" instead of normal "EV_SYN SYN_REPORT 0". This value means that the output buffer is full, and the user space is loosing events. Using .input_configured guarantees that the race is not occuring, and that the call of "input_set_events_per_packet(input, 60)" is taken into account by input_register(). Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=908604 Cc: stable@vger.kernel.org Reported-and-Tested-By: Clarke Wixon Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index f7f113b..a8ce442 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -462,6 +462,21 @@ static int magicmouse_input_mapping(struct hid_device *hdev, return 0; } +static void magicmouse_input_configured(struct hid_device *hdev, + struct hid_input *hi) + +{ + struct magicmouse_sc *msc = hid_get_drvdata(hdev); + + int ret = magicmouse_setup_input(msc->input, hdev); + if (ret) { + hid_err(hdev, "magicmouse setup input failed (%d)\n", ret); + /* clean msc->input to notify probe() of the failure */ + msc->input = NULL; + } +} + + static int magicmouse_probe(struct hid_device *hdev, const struct hid_device_id *id) { @@ -493,15 +508,10 @@ static int magicmouse_probe(struct hid_device *hdev, goto err_free; } - /* We do this after hid-input is done parsing reports so that - * hid-input uses the most natural button and axis IDs. - */ - if (msc->input) { - ret = magicmouse_setup_input(msc->input, hdev); - if (ret) { - hid_err(hdev, "magicmouse setup input failed (%d)\n", ret); - goto err_stop_hw; - } + if (!msc->input) { + hid_err(hdev, "magicmouse input not registered\n"); + ret = -ENOMEM; + goto err_stop_hw; } if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE) @@ -568,6 +578,7 @@ static struct hid_driver magicmouse_driver = { .remove = magicmouse_remove, .raw_event = magicmouse_raw_event, .input_mapping = magicmouse_input_mapping, + .input_configured = magicmouse_input_configured, }; module_hid_driver(magicmouse_driver); -- cgit v0.10.2 From 57c7310b8eb96b0fe3b0aaa8dc194adbae03bef3 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Tue, 5 Mar 2013 16:01:47 -0500 Subject: GFS2: use kmalloc for lvb bitmap The temp lvb bitmap was on the stack, which could be an alignment problem for __set_bit_le. Use kmalloc for it instead. Signed-off-by: David Teigland Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 156e42e..5c29216 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -588,6 +588,7 @@ struct lm_lockstruct { struct dlm_lksb ls_control_lksb; /* control_lock */ char ls_control_lvb[GDLM_LVB_SIZE]; /* control_lock lvb */ struct completion ls_sync_wait; /* {control,mounted}_{lock,unlock} */ + char *ls_lvb_bits; spinlock_t ls_recover_spin; /* protects following fields */ unsigned long ls_recover_flags; /* DFL_ */ diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index 9802de0..b15bb45 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -580,7 +580,6 @@ static void gfs2_control_func(struct work_struct *work) { struct gfs2_sbd *sdp = container_of(work, struct gfs2_sbd, sd_control_work.work); struct lm_lockstruct *ls = &sdp->sd_lockstruct; - char lvb_bits[GDLM_LVB_SIZE]; uint32_t block_gen, start_gen, lvb_gen, flags; int recover_set = 0; int write_lvb = 0; @@ -634,7 +633,7 @@ static void gfs2_control_func(struct work_struct *work) return; } - control_lvb_read(ls, &lvb_gen, lvb_bits); + control_lvb_read(ls, &lvb_gen, ls->ls_lvb_bits); spin_lock(&ls->ls_recover_spin); if (block_gen != ls->ls_recover_block || @@ -664,10 +663,10 @@ static void gfs2_control_func(struct work_struct *work) ls->ls_recover_result[i] = 0; - if (!test_bit_le(i, lvb_bits + JID_BITMAP_OFFSET)) + if (!test_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET)) continue; - __clear_bit_le(i, lvb_bits + JID_BITMAP_OFFSET); + __clear_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET); write_lvb = 1; } } @@ -691,7 +690,7 @@ static void gfs2_control_func(struct work_struct *work) continue; if (ls->ls_recover_submit[i] < start_gen) { ls->ls_recover_submit[i] = 0; - __set_bit_le(i, lvb_bits + JID_BITMAP_OFFSET); + __set_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET); } } /* even if there are no bits to set, we need to write the @@ -705,7 +704,7 @@ static void gfs2_control_func(struct work_struct *work) spin_unlock(&ls->ls_recover_spin); if (write_lvb) { - control_lvb_write(ls, start_gen, lvb_bits); + control_lvb_write(ls, start_gen, ls->ls_lvb_bits); flags = DLM_LKF_CONVERT | DLM_LKF_VALBLK; } else { flags = DLM_LKF_CONVERT; @@ -725,7 +724,7 @@ static void gfs2_control_func(struct work_struct *work) */ for (i = 0; i < recover_size; i++) { - if (test_bit_le(i, lvb_bits + JID_BITMAP_OFFSET)) { + if (test_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET)) { fs_info(sdp, "recover generation %u jid %d\n", start_gen, i); gfs2_recover_set(sdp, i); @@ -758,7 +757,6 @@ static void gfs2_control_func(struct work_struct *work) static int control_mount(struct gfs2_sbd *sdp) { struct lm_lockstruct *ls = &sdp->sd_lockstruct; - char lvb_bits[GDLM_LVB_SIZE]; uint32_t start_gen, block_gen, mount_gen, lvb_gen; int mounted_mode; int retries = 0; @@ -857,7 +855,7 @@ locks_done: * lvb_gen will be non-zero. */ - control_lvb_read(ls, &lvb_gen, lvb_bits); + control_lvb_read(ls, &lvb_gen, ls->ls_lvb_bits); if (lvb_gen == 0xFFFFFFFF) { /* special value to force mount attempts to fail */ @@ -887,7 +885,7 @@ locks_done: * and all lvb bits to be clear (no pending journal recoveries.) */ - if (!all_jid_bits_clear(lvb_bits)) { + if (!all_jid_bits_clear(ls->ls_lvb_bits)) { /* journals need recovery, wait until all are clear */ fs_info(sdp, "control_mount wait for journal recovery\n"); goto restart; @@ -949,7 +947,6 @@ static int dlm_recovery_wait(void *word) static int control_first_done(struct gfs2_sbd *sdp) { struct lm_lockstruct *ls = &sdp->sd_lockstruct; - char lvb_bits[GDLM_LVB_SIZE]; uint32_t start_gen, block_gen; int error; @@ -991,8 +988,8 @@ restart: memset(ls->ls_recover_result, 0, ls->ls_recover_size*sizeof(uint32_t)); spin_unlock(&ls->ls_recover_spin); - memset(lvb_bits, 0, sizeof(lvb_bits)); - control_lvb_write(ls, start_gen, lvb_bits); + memset(ls->ls_lvb_bits, 0, GDLM_LVB_SIZE); + control_lvb_write(ls, start_gen, ls->ls_lvb_bits); error = mounted_lock(sdp, DLM_LOCK_PR, DLM_LKF_CONVERT); if (error) @@ -1022,6 +1019,12 @@ static int set_recover_size(struct gfs2_sbd *sdp, struct dlm_slot *slots, uint32_t old_size, new_size; int i, max_jid; + if (!ls->ls_lvb_bits) { + ls->ls_lvb_bits = kzalloc(GDLM_LVB_SIZE, GFP_NOFS); + if (!ls->ls_lvb_bits) + return -ENOMEM; + } + max_jid = 0; for (i = 0; i < num_slots; i++) { if (max_jid < slots[i].slot - 1) @@ -1057,6 +1060,7 @@ static int set_recover_size(struct gfs2_sbd *sdp, struct dlm_slot *slots, static void free_recover_size(struct lm_lockstruct *ls) { + kfree(ls->ls_lvb_bits); kfree(ls->ls_recover_submit); kfree(ls->ls_recover_result); ls->ls_recover_submit = NULL; @@ -1205,6 +1209,7 @@ static int gdlm_mount(struct gfs2_sbd *sdp, const char *table) ls->ls_recover_size = 0; ls->ls_recover_submit = NULL; ls->ls_recover_result = NULL; + ls->ls_lvb_bits = NULL; error = set_recover_size(sdp, NULL, 0); if (error) -- cgit v0.10.2 From 4146c3d469dc400eefa253fb37aa1e74fb5e41f8 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Thu, 7 Mar 2013 23:42:52 +0900 Subject: GFS2: use memchr_inv Use memchr_inv to verify that the specified memory range is cleared. Signed-off-by: Akinobu Mita Cc: Steven Whitehouse Cc: cluster-devel@redhat.com Cc: Christine Caulfield Cc: David Teigland diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index b15bb45..c8423d6 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -483,12 +483,8 @@ static void control_lvb_write(struct lm_lockstruct *ls, uint32_t lvb_gen, static int all_jid_bits_clear(char *lvb) { - int i; - for (i = JID_BITMAP_OFFSET; i < GDLM_LVB_SIZE; i++) { - if (lvb[i]) - return 0; - } - return 1; + return !memchr_inv(lvb + JID_BITMAP_OFFSET, 0, + GDLM_LVB_SIZE - JID_BITMAP_OFFSET); } static void sync_wait_cb(void *arg) -- cgit v0.10.2 From 441362d06be349430d06e37286adce4b90e6ce96 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 11 Mar 2013 23:01:37 +0800 Subject: GFS2: return error if malloc failed in gfs2_rs_alloc() The error code in gfs2_rs_alloc() is set to ENOMEM when error but never be used, instead, gfs2_rs_alloc() always return 0. Fix to return 'error'. Signed-off-by: Wei Yongjun Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index d1f51fd..70d1cd0 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -576,7 +576,7 @@ int gfs2_rs_alloc(struct gfs2_inode *ip) RB_CLEAR_NODE(&ip->i_res->rs_node); out: up_write(&ip->i_rw_mutex); - return 0; + return error; } static void dump_rs(struct seq_file *seq, const struct gfs2_blkreserv *rs) -- cgit v0.10.2 From c2952d202f710d326ac36a8ea6bd216b20615ec8 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Thu, 14 Mar 2013 15:49:59 +0000 Subject: GFS2: Fix unlock of fcntl locks during withdrawn state When withdraw occurs, we need to continue to allow unlocks of fcntl locks to occur, however these will only be local, since the node has withdrawn from the cluster. This prevents triggering a VFS level bug trap due to locks remaining when a file is closed. Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 019f45e..d79c2da 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -923,8 +923,11 @@ static int gfs2_lock(struct file *file, int cmd, struct file_lock *fl) cmd = F_SETLK; fl->fl_type = F_UNLCK; } - if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) + if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) { + if (fl->fl_type == F_UNLCK) + posix_lock_file_wait(file, fl); return -EIO; + } if (IS_GETLK(cmd)) return dlm_posix_get(ls->ls_dlm, ip->i_no_addr, file, fl); else if (fl->fl_type == F_UNLCK) -- cgit v0.10.2 From aeb3a97222832e5457c4b72d72235098ce4bfe8d Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Thu, 4 Apr 2013 11:47:13 +0200 Subject: ALSA: hda - fix typo in proc output Rename "Digitial In" to "Digital In". This function is only used for proc output, so should not cause any problems to change. Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index ecdf30e..4aba764 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -173,7 +173,7 @@ const char *snd_hda_get_jack_type(u32 cfg) "Line Out", "Speaker", "HP Out", "CD", "SPDIF Out", "Digital Out", "Modem Line", "Modem Hand", "Line In", "Aux", "Mic", "Telephony", - "SPDIF In", "Digitial In", "Reserved", "Other" + "SPDIF In", "Digital In", "Reserved", "Other" }; return jack_types[(cfg & AC_DEFCFG_DEVICE) -- cgit v0.10.2 From 8fc24426f15d967d585af7062b7be3c46bbce571 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 4 Apr 2013 15:35:24 +0200 Subject: Revert "ALSA: hda - Allow power_save_controller option override DCAPS" This reverts commit 6ab317419c62850a71e2adfd1573e5ee87d8774f. The commit [6ab317419c: ALSA: hda - Allow power_save_controller option override DCAPS] changed the behavior of power_save_controller so that it can override the driver capability. This assumed that this option is rarely changed dynamically unlike power_save option. Too naive. It turned out that the user-space power-management tool tries to set power_save_controller option to 1 together with power_save option without knowing what's actually doing. This enabled forcibly the runtime PM of the controller, which is known to be broken om many chips thus disabled as default. So, the only sane fix is to revert this commit again. It was intended to ease debugging/testing for runtime PM enablement, but obviously we need another way for it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=56171 Reported-and-tested-by: Nikita Tsukanov Signed-off-by: Takashi Iwai diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index 4499bd9..95731a0 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -890,9 +890,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. enable_msi - Enable Message Signaled Interrupt (MSI) (default = off) power_save - Automatic power-saving timeout (in second, 0 = disable) - power_save_controller - Support runtime D3 of HD-audio controller - (-1 = on for supported chip (default), false = off, - true = force to on even for unsupported hardware) + power_save_controller - Reset HD-audio controller in power-saving mode + (default = on) align_buffer_size - Force rounding of buffer/period sizes to multiples of 128 bytes. This is more efficient in terms of memory access but isn't required by the HDA spec and prevents diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 418bfc0..bcd40ee 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -134,8 +134,8 @@ MODULE_PARM_DESC(power_save, "Automatic power-saving timeout " * this may give more power-saving, but will take longer time to * wake up. */ -static int power_save_controller = -1; -module_param(power_save_controller, bint, 0644); +static bool power_save_controller = 1; +module_param(power_save_controller, bool, 0644); MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode."); #endif /* CONFIG_PM */ @@ -2931,8 +2931,6 @@ static int azx_runtime_idle(struct device *dev) struct snd_card *card = dev_get_drvdata(dev); struct azx *chip = card->private_data; - if (power_save_controller > 0) - return 0; if (!power_save_controller || !(chip->driver_caps & AZX_DCAPS_PM_RUNTIME)) return -EBUSY; -- cgit v0.10.2 From b6a9b7f6b1f21735a7456d534dc0e68e61359d2c Mon Sep 17 00:00:00 2001 From: Jan Stancek Date: Thu, 4 Apr 2013 11:35:10 -0700 Subject: mm: prevent mmap_cache race in find_vma() find_vma() can be called by multiple threads with read lock held on mm->mmap_sem and any of them can update mm->mmap_cache. Prevent compiler from re-fetching mm->mmap_cache, because other readers could update it in the meantime: thread 1 thread 2 | find_vma() | find_vma() struct vm_area_struct *vma = NULL; | vma = mm->mmap_cache; | if (!(vma && vma->vm_end > addr | && vma->vm_start <= addr)) { | | mm->mmap_cache = vma; return vma; | ^^ compiler may optimize this | local variable out and re-read | mm->mmap_cache | This issue can be reproduced with gcc-4.8.0-1 on s390x by running mallocstress testcase from LTP, which triggers: kernel BUG at mm/rmap.c:1088! Call Trace: ([<000003d100c57000>] 0x3d100c57000) [<000000000023a1c0>] do_wp_page+0x2fc/0xa88 [<000000000023baae>] handle_pte_fault+0x41a/0xac8 [<000000000023d832>] handle_mm_fault+0x17a/0x268 [<000000000060507a>] do_protection_exception+0x1e2/0x394 [<0000000000603a04>] pgm_check_handler+0x138/0x13c [<000003fffcf1f07a>] 0x3fffcf1f07a Last Breaking-Event-Address: [<000000000024755e>] page_add_new_anon_rmap+0xc2/0x168 Thanks to Jakub Jelinek for his insight on gcc and helping to track this down. Signed-off-by: Jan Stancek Acked-by: David Rientjes Signed-off-by: Hugh Dickins Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/mm/mmap.c b/mm/mmap.c index 6466699..0db0de1 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1940,7 +1940,7 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) /* Check the cache first. */ /* (Cache hit rate is typically around 35%.) */ - vma = mm->mmap_cache; + vma = ACCESS_ONCE(mm->mmap_cache); if (!(vma && vma->vm_end > addr && vma->vm_start <= addr)) { struct rb_node *rb_node; diff --git a/mm/nommu.c b/mm/nommu.c index e193280..2f3ea74 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -821,7 +821,7 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) struct vm_area_struct *vma; /* check the cache first */ - vma = mm->mmap_cache; + vma = ACCESS_ONCE(mm->mmap_cache); if (vma && vma->vm_start <= addr && vma->vm_end > addr) return vma; -- cgit v0.10.2 From e2409d83434d77874b461b78af6a19cd6e6a1280 Mon Sep 17 00:00:00 2001 From: hayeswang Date: Sun, 31 Mar 2013 17:02:04 +0000 Subject: r8169: fix auto speed down issue It would cause no link after suspending or shutdowning when the nic changes the speed to 10M and connects to a link partner which forces the speed to 100M. Check the link partner ability to determine which speed to set. Signed-off-by: Hayes Wang Acked-by: Francois Romieu Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 28fb50a..4ecbe64 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -3818,6 +3818,30 @@ static void rtl_init_mdio_ops(struct rtl8169_private *tp) } } +static void rtl_speed_down(struct rtl8169_private *tp) +{ + u32 adv; + int lpa; + + rtl_writephy(tp, 0x1f, 0x0000); + lpa = rtl_readphy(tp, MII_LPA); + + if (lpa & (LPA_10HALF | LPA_10FULL)) + adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full; + else if (lpa & (LPA_100HALF | LPA_100FULL)) + adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; + else + adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | + (tp->mii.supports_gmii ? + ADVERTISED_1000baseT_Half | + ADVERTISED_1000baseT_Full : 0); + + rtl8169_set_speed(tp->dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL, + adv); +} + static void rtl_wol_suspend_quirk(struct rtl8169_private *tp) { void __iomem *ioaddr = tp->mmio_addr; @@ -3848,9 +3872,7 @@ static bool rtl_wol_pll_power_down(struct rtl8169_private *tp) if (!(__rtl8169_get_wol(tp) & WAKE_ANY)) return false; - rtl_writephy(tp, 0x1f, 0x0000); - rtl_writephy(tp, MII_BMCR, 0x0000); - + rtl_speed_down(tp); rtl_wol_suspend_quirk(tp); return true; -- cgit v0.10.2 From 4543fbefe6e06a9e40d9f2b28d688393a299f079 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Tue, 2 Apr 2013 17:10:07 -0400 Subject: net: count hw_addr syncs so that unsync works properly. A few drivers use dev_uc_sync/unsync to synchronize the address lists from master down to slave/lower devices. In some cases (bond/team) a single address list is synched down to multiple devices. At the time of unsync, we have a leak in these lower devices, because "synced" is treated as a boolean and the address will not be unsynced for anything after the first device/call. Treat "synced" as a count (same as refcount) and allow all unsync calls to work. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 8bfa956..6151e90 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -210,9 +210,9 @@ struct netdev_hw_addr { #define NETDEV_HW_ADDR_T_SLAVE 3 #define NETDEV_HW_ADDR_T_UNICAST 4 #define NETDEV_HW_ADDR_T_MULTICAST 5 - bool synced; bool global_use; int refcount; + int synced; struct rcu_head rcu_head; }; diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c index bd2eb9d..abdc9e6 100644 --- a/net/core/dev_addr_lists.c +++ b/net/core/dev_addr_lists.c @@ -37,7 +37,7 @@ static int __hw_addr_create_ex(struct netdev_hw_addr_list *list, ha->type = addr_type; ha->refcount = 1; ha->global_use = global; - ha->synced = false; + ha->synced = 0; list_add_tail_rcu(&ha->list, &list->list); list->count++; @@ -165,7 +165,7 @@ int __hw_addr_sync(struct netdev_hw_addr_list *to_list, addr_len, ha->type); if (err) break; - ha->synced = true; + ha->synced++; ha->refcount++; } else if (ha->refcount == 1) { __hw_addr_del(to_list, ha->addr, addr_len, ha->type); @@ -186,7 +186,7 @@ void __hw_addr_unsync(struct netdev_hw_addr_list *to_list, if (ha->synced) { __hw_addr_del(to_list, ha->addr, addr_len, ha->type); - ha->synced = false; + ha->synced--; __hw_addr_del(from_list, ha->addr, addr_len, ha->type); } -- cgit v0.10.2 From 31d1670e73f4911fe401273a8f576edc9c2b5fea Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Tue, 2 Apr 2013 14:36:46 +0000 Subject: atl1e: limit gso segment size to prevent generation of wrong ip length fields The limit of 0x3c00 is taken from the windows driver. Suggested-by: Huang, Xiong Cc: Huang, Xiong Cc: Eric Dumazet Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e.h b/drivers/net/ethernet/atheros/atl1e/atl1e.h index edfdf6b..b5fd934 100644 --- a/drivers/net/ethernet/atheros/atl1e/atl1e.h +++ b/drivers/net/ethernet/atheros/atl1e/atl1e.h @@ -186,7 +186,7 @@ struct atl1e_tpd_desc { /* how about 0x2000 */ #define MAX_TX_BUF_LEN 0x2000 #define MAX_TX_BUF_SHIFT 13 -/*#define MAX_TX_BUF_LEN 0x3000 */ +#define MAX_TSO_SEG_SIZE 0x3c00 /* rrs word 1 bit 0:31 */ #define RRS_RX_CSUM_MASK 0xFFFF diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c index f73d560..ac25f05 100644 --- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c +++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c @@ -2329,6 +2329,7 @@ static int atl1e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) INIT_WORK(&adapter->reset_task, atl1e_reset_task); INIT_WORK(&adapter->link_chg_task, atl1e_link_chg_task); + netif_set_gso_max_size(netdev, MAX_TSO_SEG_SIZE); err = register_netdev(netdev); if (err) { netdev_err(netdev, "register netdevice failed\n"); -- cgit v0.10.2 From 4de79c737b200492195ebc54a887075327e1ec1d Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Wed, 3 Apr 2013 05:46:33 +0000 Subject: bonding: remove sysfs before removing devices We have a race condition if we try to rmmod bonding and simultaneously add a bond master through sysfs. In bonding_exit() we first remove the devices (through rtnl_link_unregister() ) and only after that we remove the sysfs. If we manage to add a device through sysfs after that the devices were removed - we'll end up with that device/sysfs structure and with the module unloaded. Fix this by first removing the sysfs and only after that calling rtnl_link_unregister(). Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index a51241b..171b10f 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4902,8 +4902,8 @@ static void __exit bonding_exit(void) bond_destroy_debugfs(); - rtnl_link_unregister(&bond_link_ops); unregister_pernet_subsys(&bond_net_ops); + rtnl_link_unregister(&bond_link_ops); #ifdef CONFIG_NET_POLL_CONTROLLER /* -- cgit v0.10.2 From 25da0e3e9d3fb2b522bc2a598076735850310eb1 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Wed, 3 Apr 2013 16:13:35 +0000 Subject: Revert "af_unix: dont send SCM_CREDENTIAL when dest socket is NULL" This reverts commit 14134f6584212d585b310ce95428014b653dfaf6. The problem that the above patch was meant to address is that af_unix messages are not being coallesced because we are sending unnecesarry credentials. Not sending credentials in maybe_add_creds totally breaks unconnected unix domain sockets that wish to send credentails to other sockets. In practice this break some versions of udev because they receive a message and the sending uid is bogus so they drop the message. Reported-by: Sven Joachim Signed-off-by: "Eric W. Biederman" Signed-off-by: David S. Miller diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 971282b..f153a8d 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1412,8 +1412,8 @@ static void maybe_add_creds(struct sk_buff *skb, const struct socket *sock, if (UNIXCB(skb).cred) return; if (test_bit(SOCK_PASSCRED, &sock->flags) || - (other->sk_socket && - test_bit(SOCK_PASSCRED, &other->sk_socket->flags))) { + !other->sk_socket || + test_bit(SOCK_PASSCRED, &other->sk_socket->flags)) { UNIXCB(skb).pid = get_pid(task_tgid(current)); UNIXCB(skb).cred = get_current_cred(); } -- cgit v0.10.2 From 0e82e7f6dfeec1013339612f74abc2cdd29d43d2 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Wed, 3 Apr 2013 16:14:47 +0000 Subject: af_unix: If we don't care about credentials coallesce all messages It was reported that the following LSB test case failed https://lsbbugs.linuxfoundation.org/attachment.cgi?id=2144 because we were not coallescing unix stream messages when the application was expecting us to. The problem was that the first send was before the socket was accepted and thus sock->sk_socket was NULL in maybe_add_creds, and the second send after the socket was accepted had a non-NULL value for sk->socket and thus we could tell the credentials were not needed so we did not bother. The unnecessary credentials on the first message cause unix_stream_recvmsg to start verifying that all messages had the same credentials before coallescing and then the coallescing failed because the second message had no credentials. Ignoring credentials when we don't care in unix_stream_recvmsg fixes a long standing pessimization which would fail to coallesce messages when reading from a unix stream socket if the senders were different even if we did not care about their credentials. I have tested this and verified that the in the LSB test case mentioned above that the messages do coallesce now, while the were failing to coallesce without this change. Reported-by: Karel Srot Reported-by: Ding Tianhong Signed-off-by: "Eric W. Biederman" Signed-off-by: David S. Miller diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index f153a8d..2db702d 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1993,7 +1993,7 @@ again: if ((UNIXCB(skb).pid != siocb->scm->pid) || (UNIXCB(skb).cred != siocb->scm->cred)) break; - } else { + } else if (test_bit(SOCK_PASSCRED, &sock->flags)) { /* Copy credentials */ scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).cred); check_creds = 1; -- cgit v0.10.2 From f01fc1a82c2ee68726b400fadb156bd623b5f2f1 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 3 Apr 2013 16:50:54 +0000 Subject: ixgbe: fix registration order of driver and DCA nofitication ixgbe_notify_dca cannot be called before driver registration because it expects driver's klist_devices to be allocated and initialized. While on it make sure debugfs files are removed when registration fails. Cc: stable Signed-off-by: Jakub Kicinski Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index db5611a..79f4a26 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -7922,12 +7922,19 @@ static int __init ixgbe_init_module(void) ixgbe_dbg_init(); #endif /* CONFIG_DEBUG_FS */ + ret = pci_register_driver(&ixgbe_driver); + if (ret) { +#ifdef CONFIG_DEBUG_FS + ixgbe_dbg_exit(); +#endif /* CONFIG_DEBUG_FS */ + return ret; + } + #ifdef CONFIG_IXGBE_DCA dca_register_notify(&dca_notifier); #endif - ret = pci_register_driver(&ixgbe_driver); - return ret; + return 0; } module_init(ixgbe_init_module); -- cgit v0.10.2 From 34e2ed34a035de07277cca817fe8264324398141 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 4 Apr 2013 08:33:00 +0000 Subject: net: ipv4: notify when address lifetime changes if userspace changes lifetime of address, send netlink notification and call notifier. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index f678507..96083b7 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -802,8 +802,10 @@ static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg if (nlh->nlmsg_flags & NLM_F_EXCL || !(nlh->nlmsg_flags & NLM_F_REPLACE)) return -EEXIST; - - set_ifa_lifetime(ifa_existing, valid_lft, prefered_lft); + ifa = ifa_existing; + set_ifa_lifetime(ifa, valid_lft, prefered_lft); + rtmsg_ifa(RTM_NEWADDR, ifa, nlh, NETLINK_CB(skb).portid); + blocking_notifier_call_chain(&inetaddr_chain, NETDEV_UP, ifa); } return 0; } -- cgit v0.10.2 From 868211db6df96ddae411fcd800502725beef8387 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 4 Apr 2013 22:32:10 +0200 Subject: ALSA: hda/generic - fix uninitialized variable changed is not initialized in path_power_down_sync, but it is expected to be false in case no change happened in the loop. So set it to false. Signed-off-by: Jiri Slaby Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index 43c2ea5..2dbe767 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -740,7 +740,7 @@ EXPORT_SYMBOL_HDA(snd_hda_activate_path); static void path_power_down_sync(struct hda_codec *codec, struct nid_path *path) { struct hda_gen_spec *spec = codec->spec; - bool changed; + bool changed = false; int i; if (!spec->power_down_unused || path->active) -- cgit v0.10.2 From ad8c396936e328f5344e1881afde9e28d5f2045f Mon Sep 17 00:00:00 2001 From: David Daney Date: Tue, 2 Apr 2013 22:59:29 +0000 Subject: MIPS: Unbreak function tracer for 64-bit kernel. Commit 58b69401c797 [MIPS: Function tracer: Fix broken function tracing] completely broke the function tracer for 64-bit kernels. The symptom is a system hang very early in the boot process. The fix: Remove/fix $sp adjustments for 64-bit case. Signed-off-by: David Daney Cc: linux-mips@linux-mips.org Cc: Al Cooper Cc: viric@viric.name Cc: stable@vger.kernel.org # 3.8.x Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S index 1658676..33d0671 100644 --- a/arch/mips/kernel/mcount.S +++ b/arch/mips/kernel/mcount.S @@ -46,10 +46,9 @@ PTR_L a5, PT_R9(sp) PTR_L a6, PT_R10(sp) PTR_L a7, PT_R11(sp) -#else - PTR_ADDIU sp, PT_SIZE #endif -.endm + PTR_ADDIU sp, PT_SIZE + .endm .macro RETURN_BACK jr ra @@ -68,7 +67,11 @@ NESTED(ftrace_caller, PT_SIZE, ra) .globl _mcount _mcount: b ftrace_stub - addiu sp,sp,8 +#ifdef CONFIG_32BIT + addiu sp,sp,8 +#else + nop +#endif /* When tracing is activated, it calls ftrace_caller+8 (aka here) */ lw t1, function_trace_stop -- cgit v0.10.2 From 143f0f659986f921731ab340d9415be479762c1a Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Thu, 4 Apr 2013 12:47:01 +0000 Subject: MIPS: Alchemy: Fix typo "CONFIG_DEBUG_PCI" Commit 7517de348663b08a808aff44b5300e817157a568 ("MIPS: Alchemy: Redo PCI as platform driver") added a reference to CONFIG_DEBUG_PCI. Change it to CONFIG_PCI_DEBUG, as that is a valid Kconfig macro. Also add a newline to a debugging printk that this fix enables. Signed-off-by: Paul Bolle Cc: Sergei Shtylyov Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ralf Baechle diff --git a/arch/mips/pci/pci-alchemy.c b/arch/mips/pci/pci-alchemy.c index 38a80c8..d1faece 100644 --- a/arch/mips/pci/pci-alchemy.c +++ b/arch/mips/pci/pci-alchemy.c @@ -19,7 +19,7 @@ #include #include -#ifdef CONFIG_DEBUG_PCI +#ifdef CONFIG_PCI_DEBUG #define DBG(x...) printk(KERN_DEBUG x) #else #define DBG(x...) do {} while (0) @@ -162,7 +162,7 @@ static int config_access(unsigned char access_type, struct pci_bus *bus, if (status & (1 << 29)) { *data = 0xffffffff; error = -1; - DBG("alchemy-pci: master abort on cfg access %d bus %d dev %d", + DBG("alchemy-pci: master abort on cfg access %d bus %d dev %d\n", access_type, bus->number, device); } else if ((status >> 28) & 0xf) { DBG("alchemy-pci: PCI ERR detected: dev %d, status %lx\n", -- cgit v0.10.2 From aaa9fad32fa80878e6935c5668098c9b55b31458 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 25 Mar 2013 09:39:54 +0000 Subject: MIPS: Kconfig: Rename SNIPROM too CONFIG_SNIPROM was renamed to CONFIG_FW_SNIPROM in v3.8. Let's rename SNIPROM itself too. Signed-off-by: Paul Bolle Cc: linux-mips@linux-mips.org; Cc: linux-kernel@vger.kernel.org Cc: Thomas Bogendoerfer Signed-off-by: Ralf Baechle diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index cd2e21f..b2df476 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -657,7 +657,7 @@ config SNI_RM bool "SNI RM200/300/400" select FW_ARC if CPU_LITTLE_ENDIAN select FW_ARC32 if CPU_LITTLE_ENDIAN - select SNIPROM if CPU_BIG_ENDIAN + select FW_SNIPROM if CPU_BIG_ENDIAN select ARCH_MAY_HAVE_PC_FDC select BOOT_ELF32 select CEVT_R4K @@ -1144,7 +1144,7 @@ config DEFAULT_SGI_PARTITION config FW_ARC32 bool -config SNIPROM +config FW_SNIPROM bool config BOOT_ELF32 -- cgit v0.10.2 From ed1197f9317c960a199f491779e056c572506dd3 Mon Sep 17 00:00:00 2001 From: EunBong Song Date: Sun, 24 Mar 2013 22:18:35 +0000 Subject: MIPS: Fix build error cavium-octeon without CONFIG_SMP Singed-off-by: EunBong Song Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ralf Baechle diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index c594a3d..b0baa29 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -174,7 +174,10 @@ static int octeon_kexec_prepare(struct kimage *image) static void octeon_generic_shutdown(void) { - int cpu, i; + int i; +#ifdef CONFIG_SMP + int cpu; +#endif struct cvmx_bootmem_desc *bootmem_desc; void *named_block_array_ptr; -- cgit v0.10.2 From adb3789264c4e8567113a0e764ad30ce6e8737f3 Mon Sep 17 00:00:00 2001 From: Deng-Cheng Zhu Date: Mon, 1 Apr 2013 18:14:28 +0000 Subject: MIPS: Fix ISA level which causes secondary cache init bypassing and more The commit a96102be70 introduced set_isa() where compatible ISA info is also set aside from the one gets passed in. It means, for example, 1004K will have MIPS_CPU_ISA_M32R2/M32R1/II/I flags. This leads to things like the following inappropriate: if (c->isa_level == MIPS_CPU_ISA_M32R1 || c->isa_level == MIPS_CPU_ISA_M32R2 || c->isa_level == MIPS_CPU_ISA_M64R1 || c->isa_level == MIPS_CPU_ISA_M64R2) This patch fixes it. Signed-off-by: Deng-Cheng Zhu Cc: Steven J. Hill Cc: linux-mips@linux-mips.org Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 6bfccc2..ed80c38 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -1226,10 +1226,8 @@ __cpuinit void cpu_probe(void) if (c->options & MIPS_CPU_FPU) { c->fpu_id = cpu_get_fpu_id(); - if (c->isa_level == MIPS_CPU_ISA_M32R1 || - c->isa_level == MIPS_CPU_ISA_M32R2 || - c->isa_level == MIPS_CPU_ISA_M64R1 || - c->isa_level == MIPS_CPU_ISA_M64R2) { + if (c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 | + MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)) { if (c->fpu_id & MIPS_FPIR_3D) c->ases |= MIPS_ASE_MIPS3D; } diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index a200b5b..c3abb88 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1571,7 +1571,7 @@ void __cpuinit per_cpu_trap_init(bool is_boot_cpu) #ifdef CONFIG_64BIT status_set |= ST0_FR|ST0_KX|ST0_SX|ST0_UX; #endif - if (current_cpu_data.isa_level == MIPS_CPU_ISA_IV) + if (current_cpu_data.isa_level & MIPS_CPU_ISA_IV) status_set |= ST0_XX; if (cpu_has_dsp) status_set |= ST0_MX; diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index ecca559..2078915 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1247,10 +1247,8 @@ static void __cpuinit setup_scache(void) return; default: - if (c->isa_level == MIPS_CPU_ISA_M32R1 || - c->isa_level == MIPS_CPU_ISA_M32R2 || - c->isa_level == MIPS_CPU_ISA_M64R1 || - c->isa_level == MIPS_CPU_ISA_M64R2) { + if (c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 | + MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)) { #ifdef CONFIG_MIPS_CPU_SCACHE if (mips_sc_init ()) { scache_size = c->scache.ways * c->scache.sets * c->scache.linesz; diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c index 93d937b..df96da7 100644 --- a/arch/mips/mm/sc-mips.c +++ b/arch/mips/mm/sc-mips.c @@ -98,10 +98,8 @@ static inline int __init mips_sc_probe(void) c->scache.flags |= MIPS_CACHE_NOT_PRESENT; /* Ignore anything but MIPSxx processors */ - if (c->isa_level != MIPS_CPU_ISA_M32R1 && - c->isa_level != MIPS_CPU_ISA_M32R2 && - c->isa_level != MIPS_CPU_ISA_M64R1 && - c->isa_level != MIPS_CPU_ISA_M64R2) + if (!(c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 | + MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2))) return 0; /* Does this MIPS32/MIPS64 CPU have a config2 register? */ -- cgit v0.10.2 From 80fa8181aabeb10389c8810f97e2737eb084ce8f Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 25 Mar 2013 13:43:14 +0100 Subject: MIPS: Delete definition of SA_RESTORER. SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever supported its use and no libc was using it, so the entire sa-restorer functionality was removed with lmo commit 39bffc12c3580ab [Zap sa_restorer.] for 2.5.48 retaining only the SA_RESTORER definition as a reminder to avoid accidental reuse of the mask bit. Upstream cdef9602fbf1871a43f0f1b5cea10dd0f275167d [signal: always clear sa_restorer on execve] adds code that assumes sa_sigaction has an sa_restorer field, if SA_RESTORER is defined which would break MIPS. So remove the SA_RESTORER definition before the v3.8.4 merge. Signed-off-by: Ralf Baechle (cherry picked from commit 17da8d63add23830892ac4dc2cbb3b5d4ffb79a8) diff --git a/arch/mips/include/uapi/asm/signal.h b/arch/mips/include/uapi/asm/signal.h index d6b18b4..addb9f5 100644 --- a/arch/mips/include/uapi/asm/signal.h +++ b/arch/mips/include/uapi/asm/signal.h @@ -72,6 +72,12 @@ typedef unsigned long old_sigset_t; /* at least 32 bits */ * * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single * Unix names RESETHAND and NODEFER respectively. + * + * SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever + * supported its use and no libc was using it, so the entire sa-restorer + * functionality was removed with lmo commit 39bffc12c3580ab for 2.5.48 + * retaining only the SA_RESTORER definition as a reminder to avoid + * accidental reuse of the mask bit. */ #define SA_ONSTACK 0x08000000 #define SA_RESETHAND 0x80000000 @@ -84,8 +90,6 @@ typedef unsigned long old_sigset_t; /* at least 32 bits */ #define SA_NOMASK SA_NODEFER #define SA_ONESHOT SA_RESETHAND -#define SA_RESTORER 0x04000000 /* Only for o32 */ - #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192 -- cgit v0.10.2 From e24b0bfa2f0446ffaad2661040be23668133aef8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 5 Apr 2013 18:16:34 +0200 Subject: Revert "drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR" This reverts commit 0ef1594c017521ea89278e80fe3f80dafb17abde. This patch introduced a few races which cannot be easily fixed with a small follow-up patch. Furthermore, the SoC with the broken hardware register, which this patch intended to add support for, can only be used with device trees, which this driver currently does not support. [ Here is the discussion that led to this "revert" patch: https://lkml.org/lkml/2013/4/3/176 ] Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Nicolas Ferre Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index 0a9f27e..434ebc3 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -44,7 +44,6 @@ static DECLARE_COMPLETION(at91_rtc_updated); static unsigned int at91_alarm_year = AT91_RTC_EPOCH; static void __iomem *at91_rtc_regs; static int irq; -static u32 at91_rtc_imr; /* * Decode time/date into rtc_time structure @@ -109,11 +108,9 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm) cr = at91_rtc_read(AT91_RTC_CR); at91_rtc_write(AT91_RTC_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM); - at91_rtc_imr |= AT91_RTC_ACKUPD; at91_rtc_write(AT91_RTC_IER, AT91_RTC_ACKUPD); wait_for_completion(&at91_rtc_updated); /* wait for ACKUPD interrupt */ at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD); - at91_rtc_imr &= ~AT91_RTC_ACKUPD; at91_rtc_write(AT91_RTC_TIMR, bin2bcd(tm->tm_sec) << 0 @@ -145,7 +142,7 @@ static int at91_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) tm->tm_yday = rtc_year_days(tm->tm_mday, tm->tm_mon, tm->tm_year); tm->tm_year = at91_alarm_year - 1900; - alrm->enabled = (at91_rtc_imr & AT91_RTC_ALARM) + alrm->enabled = (at91_rtc_read(AT91_RTC_IMR) & AT91_RTC_ALARM) ? 1 : 0; dev_dbg(dev, "%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __func__, @@ -171,7 +168,6 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) tm.tm_sec = alrm->time.tm_sec; at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ALARM); - at91_rtc_imr &= ~AT91_RTC_ALARM; at91_rtc_write(AT91_RTC_TIMALR, bin2bcd(tm.tm_sec) << 0 | bin2bcd(tm.tm_min) << 8 @@ -184,7 +180,6 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) if (alrm->enabled) { at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM); - at91_rtc_imr |= AT91_RTC_ALARM; at91_rtc_write(AT91_RTC_IER, AT91_RTC_ALARM); } @@ -201,12 +196,9 @@ static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) if (enabled) { at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM); - at91_rtc_imr |= AT91_RTC_ALARM; at91_rtc_write(AT91_RTC_IER, AT91_RTC_ALARM); - } else { + } else at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ALARM); - at91_rtc_imr &= ~AT91_RTC_ALARM; - } return 0; } @@ -215,10 +207,12 @@ static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) */ static int at91_rtc_proc(struct device *dev, struct seq_file *seq) { + unsigned long imr = at91_rtc_read(AT91_RTC_IMR); + seq_printf(seq, "update_IRQ\t: %s\n", - (at91_rtc_imr & AT91_RTC_ACKUPD) ? "yes" : "no"); + (imr & AT91_RTC_ACKUPD) ? "yes" : "no"); seq_printf(seq, "periodic_IRQ\t: %s\n", - (at91_rtc_imr & AT91_RTC_SECEV) ? "yes" : "no"); + (imr & AT91_RTC_SECEV) ? "yes" : "no"); return 0; } @@ -233,7 +227,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id) unsigned int rtsr; unsigned long events = 0; - rtsr = at91_rtc_read(AT91_RTC_SR) & at91_rtc_imr; + rtsr = at91_rtc_read(AT91_RTC_SR) & at91_rtc_read(AT91_RTC_IMR); if (rtsr) { /* this interrupt is shared! Is it ours? */ if (rtsr & AT91_RTC_ALARM) events |= (RTC_AF | RTC_IRQF); @@ -297,7 +291,6 @@ static int __init at91_rtc_probe(struct platform_device *pdev) at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM | AT91_RTC_SECEV | AT91_RTC_TIMEV | AT91_RTC_CALEV); - at91_rtc_imr = 0; ret = request_irq(irq, at91_rtc_interrupt, IRQF_SHARED, @@ -336,7 +329,6 @@ static int __exit at91_rtc_remove(struct platform_device *pdev) at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM | AT91_RTC_SECEV | AT91_RTC_TIMEV | AT91_RTC_CALEV); - at91_rtc_imr = 0; free_irq(irq, pdev); rtc_device_unregister(rtc); @@ -349,35 +341,31 @@ static int __exit at91_rtc_remove(struct platform_device *pdev) /* AT91RM9200 RTC Power management control */ -static u32 at91_rtc_bkpimr; - +static u32 at91_rtc_imr; static int at91_rtc_suspend(struct device *dev) { /* this IRQ is shared with DBGU and other hardware which isn't * necessarily doing PM like we are... */ - at91_rtc_bkpimr = at91_rtc_imr & (AT91_RTC_ALARM|AT91_RTC_SECEV); - if (at91_rtc_bkpimr) { - if (device_may_wakeup(dev)) { + at91_rtc_imr = at91_rtc_read(AT91_RTC_IMR) + & (AT91_RTC_ALARM|AT91_RTC_SECEV); + if (at91_rtc_imr) { + if (device_may_wakeup(dev)) enable_irq_wake(irq); - } else { - at91_rtc_write(AT91_RTC_IDR, at91_rtc_bkpimr); - at91_rtc_imr &= ~at91_rtc_bkpimr; - } -} + else + at91_rtc_write(AT91_RTC_IDR, at91_rtc_imr); + } return 0; } static int at91_rtc_resume(struct device *dev) { - if (at91_rtc_bkpimr) { - if (device_may_wakeup(dev)) { + if (at91_rtc_imr) { + if (device_may_wakeup(dev)) disable_irq_wake(irq); - } else { - at91_rtc_imr |= at91_rtc_bkpimr; - at91_rtc_write(AT91_RTC_IER, at91_rtc_bkpimr); - } + else + at91_rtc_write(AT91_RTC_IER, at91_rtc_imr); } return 0; } diff --git a/drivers/rtc/rtc-at91rm9200.h b/drivers/rtc/rtc-at91rm9200.h index 5f940b6..da1945e 100644 --- a/drivers/rtc/rtc-at91rm9200.h +++ b/drivers/rtc/rtc-at91rm9200.h @@ -64,6 +64,7 @@ #define AT91_RTC_SCCR 0x1c /* Status Clear Command Register */ #define AT91_RTC_IER 0x20 /* Interrupt Enable Register */ #define AT91_RTC_IDR 0x24 /* Interrupt Disable Register */ +#define AT91_RTC_IMR 0x28 /* Interrupt Mask Register */ #define AT91_RTC_VER 0x2c /* Valid Entry Register */ #define AT91_RTC_NVTIM (1 << 0) /* Non valid Time */ -- cgit v0.10.2 From b2c87cae0edb1a99f7dd2751d5beb2cb97926514 Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Fri, 22 Mar 2013 10:07:24 -0400 Subject: GFS2: Issue discards in 512b sectors This patch changes GFS2's discard issuing code so that it calls function sb_issue_discard rather than blkdev_issue_discard. The code was calling blkdev_issue_discard and specifying the correct sector offset and sector size, but blkdev_issue_discard expects these values to be in terms of 512 byte sectors, even if the native sector size for the device is different. Calling sb_issue_discard with the BLOCK size instead ensures the correct block-to-512b-sector translation. I verified that "minlen" is specified in blocks, so comparing it to a number of blocks is correct. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 70d1cd0..5a51265 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -1181,12 +1181,9 @@ int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset, const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed) { struct super_block *sb = sdp->sd_vfs; - struct block_device *bdev = sb->s_bdev; - const unsigned int sects_per_blk = sdp->sd_sb.sb_bsize / - bdev_logical_block_size(sb->s_bdev); u64 blk; sector_t start = 0; - sector_t nr_sects = 0; + sector_t nr_blks = 0; int rv; unsigned int x; u32 trimmed = 0; @@ -1206,35 +1203,34 @@ int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset, if (diff == 0) continue; blk = offset + ((bi->bi_start + x) * GFS2_NBBY); - blk *= sects_per_blk; /* convert to sectors */ while(diff) { if (diff & 1) { - if (nr_sects == 0) + if (nr_blks == 0) goto start_new_extent; - if ((start + nr_sects) != blk) { - if (nr_sects >= minlen) { - rv = blkdev_issue_discard(bdev, - start, nr_sects, + if ((start + nr_blks) != blk) { + if (nr_blks >= minlen) { + rv = sb_issue_discard(sb, + start, nr_blks, GFP_NOFS, 0); if (rv) goto fail; - trimmed += nr_sects; + trimmed += nr_blks; } - nr_sects = 0; + nr_blks = 0; start_new_extent: start = blk; } - nr_sects += sects_per_blk; + nr_blks++; } diff >>= 2; - blk += sects_per_blk; + blk++; } } - if (nr_sects >= minlen) { - rv = blkdev_issue_discard(bdev, start, nr_sects, GFP_NOFS, 0); + if (nr_blks >= minlen) { + rv = sb_issue_discard(sb, start, nr_blks, GFP_NOFS, 0); if (rv) goto fail; - trimmed += nr_sects; + trimmed += nr_blks; } if (ptrimmed) *ptrimmed = trimmed; -- cgit v0.10.2 From ff802e31b5e60a9a39f70479947a27cea5da701c Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Fri, 5 Apr 2013 14:30:13 -0400 Subject: firmware,IB/qib: revert firmware file move Commit e2eed58b4fbf ("IB/qib: change QLogic to Intel") moved a firmware file potentially breaking the ABI. This patch reverts that aspect of the fix as well as reverting the firmware name as used in qib. Reported-by: David Woodhouse Signed-off-by: Mike Marciniszyn Signed-off-by: Linus Torvalds diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c index 08a6c6d..911205d 100644 --- a/drivers/infiniband/hw/qib/qib_sd7220.c +++ b/drivers/infiniband/hw/qib/qib_sd7220.c @@ -44,7 +44,7 @@ #include "qib.h" #include "qib_7220.h" -#define SD7220_FW_NAME "intel/sd7220.fw" +#define SD7220_FW_NAME "qlogic/sd7220.fw" MODULE_FIRMWARE(SD7220_FW_NAME); /* diff --git a/firmware/Makefile b/firmware/Makefile index 5d8ee13..cbb09ce 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -82,7 +82,7 @@ fw-shipped-$(CONFIG_SCSI_ADVANSYS) += advansys/mcode.bin advansys/38C1600.bin \ fw-shipped-$(CONFIG_SCSI_QLOGIC_1280) += qlogic/1040.bin qlogic/1280.bin \ qlogic/12160.bin fw-shipped-$(CONFIG_SCSI_QLOGICPTI) += qlogic/isp1000.bin -fw-shipped-$(CONFIG_INFINIBAND_QIB) += intel/sd7220.fw +fw-shipped-$(CONFIG_INFINIBAND_QIB) += qlogic/sd7220.fw fw-shipped-$(CONFIG_SND_KORG1212) += korg/k1212.dsp fw-shipped-$(CONFIG_SND_MAESTRO3) += ess/maestro3_assp_kernel.fw \ ess/maestro3_assp_minisrc.fw diff --git a/firmware/intel/sd7220.fw.ihex b/firmware/intel/sd7220.fw.ihex deleted file mode 100644 index a336363..0000000 --- a/firmware/intel/sd7220.fw.ihex +++ /dev/null @@ -1,513 +0,0 @@ -:10000000020A29020A87E5E630E6047F0180027FC2 -:1000100000E5E230E4047E0180027E00EE5F6008CD -:1000200053F9F7E4F5FE80087F0A121731120EA289 -:1000300075FC08E4F5FDE5E720E70343F908220035 -:1000400001201100042000755101E4F552F553F52B -:1000500052F57E7F04020438C2360552E552D3942D -:100060000C4005755201D23690070C7407F0A3744A -:10007000FFF0E4F50CA3F0900714F0A3F0750B204B -:10008000F509E4F508E508D39430400302040412AE -:100090000006150BE50870047F0180027F00E5096A -:1000A00070047E0180027E00EE5F6005121871D23E -:1000B0003553E1F7E5084509FFE50B25E025E02488 -:1000C00083F582E43407F583EFF085E220E552D32F -:1000D0009401400D1219F3E054A064407003020330 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+:101FD0000000000000000000000000000000000001 +:101FE00000000000000000000000000000000000F1 +:101FF000000000000000000001201100042000810A +:00000001FF -- cgit v0.10.2 From 124dff01afbdbff251f0385beca84ba1b9adda68 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 5 Apr 2013 20:42:05 +0200 Subject: netfilter: don't reset nf_trace in nf_reset() Commit 130549fe ("netfilter: reset nf_trace in nf_reset") added code to reset nf_trace in nf_reset(). This is wrong and unnecessary. nf_reset() is used in the following cases: - when passing packets up the the socket layer, at which point we want to release all netfilter references that might keep modules pinned while the packet is queued. nf_trace doesn't matter anymore at this point. - when encapsulating or decapsulating IPsec packets. We want to continue tracing these packets after IPsec processing. - when passing packets through virtual network devices. Only devices on that encapsulate in IPv4/v6 matter since otherwise nf_trace is not used anymore. Its not entirely clear whether those packets should be traced after that, however we've always done that. - when passing packets through virtual network devices that make the packet cross network namespace boundaries. This is the only cases where we clearly want to reset nf_trace and is also what the original patch intended to fix. Add a new function nf_reset_trace() and use it in dev_forward_skb() to fix this properly. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 72b3967..b8292d8 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2641,6 +2641,10 @@ static inline void nf_reset(struct sk_buff *skb) nf_bridge_put(skb->nf_bridge); skb->nf_bridge = NULL; #endif +} + +static inline void nf_reset_trace(struct sk_buff *skb) +{ #if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE) skb->nf_trace = 0; #endif diff --git a/net/core/dev.c b/net/core/dev.c index 13e6447..e7d68ed 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1639,6 +1639,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb) skb->mark = 0; secpath_reset(skb); nf_reset(skb); + nf_reset_trace(skb); return netif_rx(skb); } EXPORT_SYMBOL_GPL(dev_forward_skb); -- cgit v0.10.2 From 50a75a8914539c5dcd441c5f54d237a666a426fd Mon Sep 17 00:00:00 2001 From: Christoph Paasch Date: Sun, 7 Apr 2013 04:53:15 +0000 Subject: ipv6/tcp: Stop processing ICMPv6 redirect messages Tetja Rediske found that if the host receives an ICMPv6 redirect message after sending a SYN+ACK, the connection will be reset. He bisected it down to 093d04d (ipv6: Change skb->data before using icmpv6_notify() to propagate redirect), but the origin of the bug comes from ec18d9a26 (ipv6: Add redirect support to all protocol icmp error handlers.). The bug simply did not trigger prior to 093d04d, because skb->data did not point to the inner IP header and thus icmpv6_notify did not call the correct err_handler. This patch adds the missing "goto out;" in tcp_v6_err. After receiving an ICMPv6 Redirect, we should not continue processing the ICMP in tcp_v6_err, as this may trigger the removal of request-socks or setting sk_err(_soft). Reported-by: Tetja Rediske Signed-off-by: Christoph Paasch Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index f6d629f..46a5be8 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -386,6 +386,7 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, if (dst) dst->ops->redirect(dst, sk, skb); + goto out; } if (type == ICMPV6_PKT_TOOBIG) { -- cgit v0.10.2 From 9b3e617f3df53822345a8573b6d358f6b9e5ed87 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:47 +0000 Subject: atm: update msg_namelen in vcc_recvmsg() The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about vcc_recvmsg() not filling the msg_name in case it was set. Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/atm/common.c b/net/atm/common.c index 7b49100..737bef5 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -531,6 +531,8 @@ int vcc_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, struct sk_buff *skb; int copied, error = -EINVAL; + msg->msg_namelen = 0; + if (sock->state != SS_CONNECTED) return -ENOTCONN; -- cgit v0.10.2 From ef3313e84acbf349caecae942ab3ab731471f1a1 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:48 +0000 Subject: ax25: fix info leak via msg_name in ax25_recvmsg() When msg_namelen is non-zero the sockaddr info gets filled out, as requested, but the code fails to initialize the padding bytes of struct sockaddr_ax25 inserted by the compiler for alignment. Additionally the msg_namelen value is updated to sizeof(struct full_sockaddr_ax25) but is not always filled up to this size. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix both issues by initializing the memory with memset(0). Cc: Ralf Baechle Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index 7b11f8b..e277e38 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -1642,6 +1642,7 @@ static int ax25_recvmsg(struct kiocb *iocb, struct socket *sock, ax25_address src; const unsigned char *mac = skb_mac_header(skb); + memset(sax, 0, sizeof(struct full_sockaddr_ax25)); ax25_addr_parse(mac + 1, skb->data - mac - 1, &src, NULL, &digi, NULL, NULL); sax->sax25_family = AF_AX25; -- cgit v0.10.2 From 4683f42fde3977bdb4e8a09622788cc8b5313778 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:49 +0000 Subject: Bluetooth: fix possible info leak in bt_sock_recvmsg() In case the socket is already shutting down, bt_sock_recvmsg() returns with 0 without updating msg_namelen leading to net/socket.c leaking the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix this by moving the msg_namelen assignment in front of the shutdown test. Cc: Marcel Holtmann Cc: Gustavo Padovan Cc: Johan Hedberg Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index d3ee69b..0d1b08c 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -230,6 +230,8 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, if (flags & (MSG_OOB)) return -EOPNOTSUPP; + msg->msg_namelen = 0; + skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) { if (sk->sk_shutdown & RCV_SHUTDOWN) @@ -237,8 +239,6 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, return err; } - msg->msg_namelen = 0; - copied = skb->len; if (len < copied) { msg->msg_flags |= MSG_TRUNC; -- cgit v0.10.2 From e11e0455c0d7d3d62276a0c55d9dfbc16779d691 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:50 +0000 Subject: Bluetooth: RFCOMM - Fix missing msg_namelen update in rfcomm_sock_recvmsg() If RFCOMM_DEFER_SETUP is set in the flags, rfcomm_sock_recvmsg() returns early with 0 without updating the possibly set msg_namelen member. This, in turn, leads to a 128 byte kernel stack leak in net/socket.c. Fix this by updating msg_namelen in this case. For all other cases it will be handled in bt_sock_stream_recvmsg(). Cc: Marcel Holtmann Cc: Gustavo Padovan Cc: Johan Hedberg Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index c23bae8..7c9224b 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -608,6 +608,7 @@ static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock, if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) { rfcomm_dlc_accept(d); + msg->msg_namelen = 0; return 0; } -- cgit v0.10.2 From c8c499175f7d295ef867335bceb9a76a2c3cdc38 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:51 +0000 Subject: Bluetooth: SCO - Fix missing msg_namelen update in sco_sock_recvmsg() If the socket is in state BT_CONNECT2 and BT_SK_DEFER_SETUP is set in the flags, sco_sock_recvmsg() returns early with 0 without updating the possibly set msg_namelen member. This, in turn, leads to a 128 byte kernel stack leak in net/socket.c. Fix this by updating msg_namelen in this case. For all other cases it will be handled in bt_sock_recvmsg(). Cc: Marcel Holtmann Cc: Gustavo Padovan Cc: Johan Hedberg Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index fad0302..fb6192c 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -665,6 +665,7 @@ static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock, test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { hci_conn_accept(pi->conn->hcon, 0); sk->sk_state = BT_CONFIG; + msg->msg_namelen = 0; release_sock(sk); return 0; -- cgit v0.10.2 From 2d6fbfe733f35c6b355c216644e08e149c61b271 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:52 +0000 Subject: caif: Fix missing msg_namelen update in caif_seqpkt_recvmsg() The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about caif_seqpkt_recvmsg() not filling the msg_name in case it was set. Cc: Sjur Braendeland Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index 095259f..ff2ff3c 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -286,6 +286,8 @@ static int caif_seqpkt_recvmsg(struct kiocb *iocb, struct socket *sock, if (m->msg_flags&MSG_OOB) goto read_error; + m->msg_namelen = 0; + skb = skb_recv_datagram(sk, flags, 0 , &ret); if (!skb) goto read_error; -- cgit v0.10.2 From 5ae94c0d2f0bed41d6718be743985d61b7f5c47d Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:53 +0000 Subject: irda: Fix missing msg_namelen update in irda_recvmsg_dgram() The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about irda_recvmsg_dgram() not filling the msg_name in case it was set. Cc: Samuel Ortiz Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index d28e7f0..e493b33 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -1386,6 +1386,8 @@ static int irda_recvmsg_dgram(struct kiocb *iocb, struct socket *sock, IRDA_DEBUG(4, "%s()\n", __func__); + msg->msg_namelen = 0; + skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, flags & MSG_DONTWAIT, &err); if (!skb) -- cgit v0.10.2 From a5598bd9c087dc0efc250a5221e5d0e6f584ee88 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:54 +0000 Subject: iucv: Fix missing msg_namelen update in iucv_sock_recvmsg() The current code does not fill the msg_name member in case it is set. It also does not set the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix that by simply setting msg_namelen to 0 as obviously nobody cared about iucv_sock_recvmsg() not filling the msg_name in case it was set. Cc: Ursula Braun Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index a7d11ffe..bf69358 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -1328,6 +1328,8 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct sk_buff *skb, *rskb, *cskb; int err = 0; + msg->msg_namelen = 0; + if ((sk->sk_state == IUCV_DISCONN) && skb_queue_empty(&iucv->backlog_skb_q) && skb_queue_empty(&sk->sk_receive_queue) && -- cgit v0.10.2 From b860d3cc62877fad02863e2a08efff69a19382d2 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:55 +0000 Subject: l2tp: fix info leak in l2tp_ip6_recvmsg() The L2TP code for IPv6 fails to initialize the l2tp_conn_id member of struct sockaddr_l2tpip6 and therefore leaks four bytes kernel stack in l2tp_ip6_recvmsg() in case msg_name is set. Initialize l2tp_conn_id with 0 to avoid the info leak. Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index c74f5a9..b8a6039 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -690,6 +690,7 @@ static int l2tp_ip6_recvmsg(struct kiocb *iocb, struct sock *sk, lsa->l2tp_addr = ipv6_hdr(skb)->saddr; lsa->l2tp_flowinfo = 0; lsa->l2tp_scope_id = 0; + lsa->l2tp_conn_id = 0; if (ipv6_addr_type(&lsa->l2tp_addr) & IPV6_ADDR_LINKLOCAL) lsa->l2tp_scope_id = IP6CB(skb)->iif; } -- cgit v0.10.2 From c77a4b9cffb6215a15196ec499490d116dfad181 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:56 +0000 Subject: llc: Fix missing msg_namelen update in llc_ui_recvmsg() For stream sockets the code misses to update the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. The msg_namelen update is also missing for datagram sockets in case the socket is shutting down during receive. Fix both issues by setting msg_namelen to 0 early. It will be updated later if we're going to fill the msg_name member. Cc: Arnaldo Carvalho de Melo Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 8870988..48aaa89 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -720,6 +720,8 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock, int target; /* Read at least this many bytes */ long timeo; + msg->msg_namelen = 0; + lock_sock(sk); copied = -ENOTCONN; if (unlikely(sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_LISTEN)) -- cgit v0.10.2 From 3ce5efad47b62c57a4f5c54248347085a750ce0e Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:57 +0000 Subject: netrom: fix info leak via msg_name in nr_recvmsg() In case msg_name is set the sockaddr info gets filled out, as requested, but the code fails to initialize the padding bytes of struct sockaddr_ax25 inserted by the compiler for alignment. Also the sax25_ndigis member does not get assigned, leaking four more bytes. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix both issues by initializing the memory with memset(0). Cc: Ralf Baechle Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index d1fa1d9..7fcb307 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1173,6 +1173,7 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock, } if (sax != NULL) { + memset(sax, 0, sizeof(sax)); sax->sax25_family = AF_NETROM; skb_copy_from_linear_data_offset(skb, 7, sax->sax25_call.ax25_call, AX25_ADDR_LEN); -- cgit v0.10.2 From d26d6504f23e803824e8ebd14e52d4fc0a0b09cb Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:58 +0000 Subject: NFC: llcp: fix info leaks via msg_name in llcp_sock_recvmsg() The code in llcp_sock_recvmsg() does not initialize all the members of struct sockaddr_nfc_llcp when filling the sockaddr info. Nor does it initialize the padding bytes of the structure inserted by the compiler for alignment. Also, if the socket is in state LLCP_CLOSED or is shutting down during receive the msg_namelen member is not updated to 0 while otherwise returning with 0, i.e. "success". The msg_namelen update is also missing for stream and seqpacket sockets which don't fill the sockaddr info. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix the first issue by initializing the memory used for sockaddr info with memset(0). Fix the second one by setting msg_namelen to 0 early. It will be updated later if we're going to fill the msg_name member. Cc: Lauro Ramos Venancio Cc: Aloisio Almeida Jr Cc: Samuel Ortiz Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index 8f02574..6c94447 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -646,6 +646,8 @@ static int llcp_sock_recvmsg(struct kiocb *iocb, struct socket *sock, pr_debug("%p %zu\n", sk, len); + msg->msg_namelen = 0; + lock_sock(sk); if (sk->sk_state == LLCP_CLOSED && @@ -691,6 +693,7 @@ static int llcp_sock_recvmsg(struct kiocb *iocb, struct socket *sock, pr_debug("Datagram socket %d %d\n", ui_cb->dsap, ui_cb->ssap); + memset(sockaddr, 0, sizeof(*sockaddr)); sockaddr->sa_family = AF_NFC; sockaddr->nfc_protocol = NFC_PROTO_NFC_DEP; sockaddr->dsap = ui_cb->dsap; -- cgit v0.10.2 From 4a184233f21645cf0b719366210ed445d1024d72 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:51:59 +0000 Subject: rose: fix info leak via msg_name in rose_recvmsg() The code in rose_recvmsg() does not initialize all of the members of struct sockaddr_rose/full_sockaddr_rose when filling the sockaddr info. Nor does it initialize the padding bytes of the structure inserted by the compiler for alignment. This will lead to leaking uninitialized kernel stack bytes in net/socket.c. Fix the issue by initializing the memory used for sockaddr info with memset(0). Cc: Ralf Baechle Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index cf68e6e..9c83474 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1253,6 +1253,7 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock, skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); if (srose != NULL) { + memset(srose, 0, msg->msg_namelen); srose->srose_family = AF_ROSE; srose->srose_addr = rose->dest_addr; srose->srose_call = rose->dest_call; -- cgit v0.10.2 From 60085c3d009b0df252547adb336d1ccca5ce52ec Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:52:00 +0000 Subject: tipc: fix info leaks via msg_name in recv_msg/recv_stream The code in set_orig_addr() does not initialize all of the members of struct sockaddr_tipc when filling the sockaddr info -- namely the union is only partly filled. This will make recv_msg() and recv_stream() -- the only users of this function -- leak kernel stack memory as the msg_name member is a local variable in net/socket.c. Additionally to that both recv_msg() and recv_stream() fail to update the msg_namelen member to 0 while otherwise returning with 0, i.e. "success". This is the case for, e.g., non-blocking sockets. This will lead to a 128 byte kernel stack leak in net/socket.c. Fix the first issue by initializing the memory of the union with memset(0). Fix the second one by setting msg_namelen to 0 early as it will be updated later if we're going to fill the msg_name member. Cc: Jon Maloy Cc: Allan Stephens Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/tipc/socket.c b/net/tipc/socket.c index a9622b6..515ce38 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -790,6 +790,7 @@ static void set_orig_addr(struct msghdr *m, struct tipc_msg *msg) if (addr) { addr->family = AF_TIPC; addr->addrtype = TIPC_ADDR_ID; + memset(&addr->addr, 0, sizeof(addr->addr)); addr->addr.id.ref = msg_origport(msg); addr->addr.id.node = msg_orignode(msg); addr->addr.name.domain = 0; /* could leave uninitialized */ @@ -904,6 +905,9 @@ static int recv_msg(struct kiocb *iocb, struct socket *sock, goto exit; } + /* will be updated in set_orig_addr() if needed */ + m->msg_namelen = 0; + timeout = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); restart: @@ -1013,6 +1017,9 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock, goto exit; } + /* will be updated in set_orig_addr() if needed */ + m->msg_namelen = 0; + target = sock_rcvlowat(sk, flags & MSG_WAITALL, buf_len); timeout = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); -- cgit v0.10.2 From 680d04e0ba7e926233e3b9cee59125ce181f66ba Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:52:01 +0000 Subject: VSOCK: vmci - fix possible info leak in vmci_transport_dgram_dequeue() In case we received no data on the call to skb_recv_datagram(), i.e. skb->data is NULL, vmci_transport_dgram_dequeue() will return with 0 without updating msg_namelen leading to net/socket.c leaking the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Fix this by moving the already existing msg_namelen assignment a few lines above. Cc: Andy King Cc: Dmitry Torokhov Cc: George Zhang Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c index 1f6508e..5e04d3d 100644 --- a/net/vmw_vsock/vmci_transport.c +++ b/net/vmw_vsock/vmci_transport.c @@ -1736,6 +1736,8 @@ static int vmci_transport_dgram_dequeue(struct kiocb *kiocb, if (flags & MSG_OOB || flags & MSG_ERRQUEUE) return -EOPNOTSUPP; + msg->msg_namelen = 0; + /* Retrieve the head sk_buff from the socket's receive queue. */ err = 0; skb = skb_recv_datagram(&vsk->sk, flags, noblock, &err); @@ -1768,7 +1770,6 @@ static int vmci_transport_dgram_dequeue(struct kiocb *kiocb, if (err) goto out; - msg->msg_namelen = 0; if (msg->msg_name) { struct sockaddr_vm *vm_addr; -- cgit v0.10.2 From d5e0d0f607a7a029c6563a0470d88255c89a8d11 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sun, 7 Apr 2013 01:52:02 +0000 Subject: VSOCK: Fix missing msg_namelen update in vsock_stream_recvmsg() The code misses to update the msg_namelen member to 0 and therefore makes net/socket.c leak the local, uninitialized sockaddr_storage variable to userland -- 128 bytes of kernel stack memory. Cc: Andy King Cc: Dmitry Torokhov Cc: George Zhang Signed-off-by: Mathias Krause Signed-off-by: David S. Miller diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index d8079da..7f93e2a 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1670,6 +1670,8 @@ vsock_stream_recvmsg(struct kiocb *kiocb, vsk = vsock_sk(sk); err = 0; + msg->msg_namelen = 0; + lock_sock(sk); if (sk->sk_state != SS_CONNECTED) { -- cgit v0.10.2 From 259c9a1f9e0fa6610c5d7c15ba658dd4fd007bf5 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Tue, 2 Apr 2013 12:35:31 +0000 Subject: sctp: remove 'sridhar' from maintainers list Update SCTP maintainers list. Signed-off-by: Sridhar Samudrala Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index 836a618..3767040 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6951,7 +6951,6 @@ F: drivers/scsi/st* SCTP PROTOCOL M: Vlad Yasevich -M: Sridhar Samudrala M: Neil Horman L: linux-sctp@vger.kernel.org W: http://lksctp.sourceforge.net -- cgit v0.10.2 From cb28ea3b13b86fb23448525f34720e659bda7aa8 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Sun, 7 Apr 2013 05:36:23 +0000 Subject: bnx2x: Fix KR2 rapid link flap Check KR2 recovery time at the beginning of the work-around function. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 77ebae0..0283f34 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -13437,13 +13437,7 @@ static void bnx2x_check_kr2_wa(struct link_params *params, { struct bnx2x *bp = params->bp; u16 base_page, next_page, not_kr2_device, lane; - int sigdet = bnx2x_warpcore_get_sigdet(phy, params); - - if (!sigdet) { - if (!(vars->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) - bnx2x_kr2_recovery(params, vars, phy); - return; - } + int sigdet; /* Once KR2 was disabled, wait 5 seconds before checking KR2 recovery * since some switches tend to reinit the AN process and clear the @@ -13454,6 +13448,16 @@ static void bnx2x_check_kr2_wa(struct link_params *params, vars->check_kr2_recovery_cnt--; return; } + + sigdet = bnx2x_warpcore_get_sigdet(phy, params); + if (!sigdet) { + if (!(vars->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) { + bnx2x_kr2_recovery(params, vars, phy); + DP(NETIF_MSG_LINK, "No sigdet\n"); + } + return; + } + lane = bnx2x_get_warpcore_lane(phy, params); CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK, MDIO_AER_BLOCK_AER_REG, lane); -- cgit v0.10.2