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2012-09-27um: let signal_delivered() do SIGTRAP on singlestepping into handlerAl Viro
... rather than duplicating that in sigframe setup code (and doing that inconsistently, at that) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-27um: don't leak floating point state and segment registers on execve()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-27um: take cleaning singlestep to start_thread()Al Viro
... assuming it's needed to be done at all Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-09-27doc: fix old config name of kprobetraceLiu Bo
KPROBE_TRACING has been replaced by KPROBE_EVENT. Signed-off-by: Liu Bo <liub.liubo@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-09-27Merge branch 'drm-nouveau-fixes' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes Another spurious dmesg quitening. * 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_EN
2012-09-27md/raid10: fix "enough" function for detecting if array is failed.NeilBrown
The 'enough' function is written to work with 'near' arrays only in that is implicitly assumes that the offset from one 'group' of devices to the next is the same as the number of copies. In reality it is the number of 'near' copies. So change it to make this number explicit. This bug makes it possible to run arrays without enough drives present, which is dangerous. It is appropriate for an -stable kernel, but will almost certainly need to be modified for some of them. Cc: stable@vger.kernel.org Reported-by: Jakub Husák <jakub@gooseman.cz> Signed-off-by: NeilBrown <neilb@suse.de>
2012-09-26ARM: Orion5x: Fix too small coherent pool.Andrew Lunn
Some Orion5x devices allocate their coherent buffers from atomic context. Increase size of atomic coherent pool to make sure such the allocations won't fail during boot. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-26drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_ENBen Skeggs
PFIFO_INTR = 0x40000000 appears to be a normal case on nvc0/nve0 PFIFO, the binary driver appears to completely ignore it in its PFIFO interrupt handler and even masks off the bit (as we do) in PFIFO_INTR_EN at init time. The bits still light up in the hardware sometimes though, so lets just ignore any bits we haven't explicitely requested. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-09-26dm verity: fix overflow checkMikulas Patocka
This patch fixes sector_t overflow checking in dm-verity. Without this patch, the code checks for overflow only if sector_t is smaller than long long, not if sector_t and long long have the same size. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26dm thin: fix discard support for data devicesMike Snitzer
The discard limits that get established for a thin-pool or thin device may be incompatible with the pool's data device. Avoid this by checking the discard limits of the pool's data device. If an incompatibility is found then the pool's 'discard passdown' feature is disabled. Change thin_io_hints to ensure that a thin device always uses the same queue limits as its pool device. Introduce requested_pf to track whether or not the table line originally contained the no_discard_passdown flag and use this directly for table output. We prepare the correct setting for discard_passdown directly in bind_control_target (called from pool_io_hints) and store it in adjusted_pf rather than waiting until we have access to pool->pf in pool_preresume. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26dm thin: tidy discard supportMike Snitzer
A little thin discard code refactoring to make the next patch (dm thin: fix discard support for data devices) more readable. Pull out a couple of functions (and uses bools instead of unsigned for features). No functional changes. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26dm: retain table limits when swapping to new table with no devicesMike Snitzer
Add a safety net that will re-use the DM device's existing limits in the event that DM device has a temporary table that doesn't have any component devices. This is to reduce the chance that requests not respecting the hardware limits will reach the device. DM recalculates queue limits based only on devices which currently exist in the table. This creates a problem in the event all devices are temporarily removed such as all paths being lost in multipath. DM will reset the limits to the maximum permissible, which can then assemble requests which exceed the limits of the paths when the paths are restored. The request will fail the blk_rq_check_limits() test when sent to a path with lower limits, and will be retried without end by multipath. This became a much bigger issue after v3.6 commit fe86cdcef ("block: do not artificially constrain max_sectors for stacking drivers"). Reported-by: David Jeffery <djeffery@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26dm table: clear add_random unless all devices have it setMilan Broz
Always clear QUEUE_FLAG_ADD_RANDOM if any underlying device does not have it set. Otherwise devices with predictable characteristics may contribute entropy. QUEUE_FLAG_ADD_RANDOM specifies whether or not queue IO timings contribute to the random pool. For bio-based targets this flag is always 0 because such devices have no real queue. For request-based devices this flag was always set to 1 by default. Now set it according to the flags on underlying devices. If there is at least one device which should not contribute, set the flag to zero: If a device, such as fast SSD storage, is not suitable for supplying entropy, a request-based queue stacked over it will not be either. Because the checking logic is exactly same as for the rotational flag, share the iteration function with device_is_nonrot(). Signed-off-by: Milan Broz <mbroz@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26dm: handle requests beyond end of device instead of using BUG_ONMike Snitzer
The access beyond the end of device BUG_ON that was introduced to dm_request_fn via commit 29e4013de7ad950280e4b2208 ("dm: implement REQ_FLUSH/FUA support for request-based dm") was an overly drastic (but simple) response to this situation. I have received a report that this BUG_ON was hit and now think it would be better to use dm_kill_unmapped_request() to fail the clone and original request with -EIO. map_request() will assign the valid target returned by dm_table_find_target to tio->ti. But when the target isn't valid tio->ti is never assigned (because map_request isn't called); so add a check for tio->ti != NULL to dm_done(). Reported-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: stable@vger.kernel.org # v2.6.37+ Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26dm mpath: only retry ioctl when no paths if queue_if_no_path setMike Snitzer
When there are no paths and multipath receives an ioctl, it waits until a path becomes available. This behaviour is incorrect if the "queue_if_no_path" setting was not specified, as then the ioctl should be rejected immediately, which this patch now does. commit 35991652b ("dm mpath: allow ioctls to trigger pg init") should have checked if queue_if_no_path was configured before queueing IO. Checking for the queue_if_no_path feature, like is done in map_io(), allows the following table load to work without blocking in the multipath_ioctl retry loop: echo "0 1024 multipath 0 0 0 0" | dmsetup create mpath_nodevs Without this fix the multipath_ioctl will block with the following stack trace: blkid D 0000000000000002 0 23936 1 0x00000000 ffff8802b89e5cd8 0000000000000082 ffff8802b89e5fd8 0000000000012440 ffff8802b89e4010 0000000000012440 0000000000012440 0000000000012440 ffff8802b89e5fd8 0000000000012440 ffff88030c2aab30 ffff880325794040 Call Trace: [<ffffffff814ce099>] schedule+0x29/0x70 [<ffffffff814cc312>] schedule_timeout+0x182/0x2e0 [<ffffffff8104dee0>] ? lock_timer_base+0x70/0x70 [<ffffffff814cc48e>] schedule_timeout_uninterruptible+0x1e/0x20 [<ffffffff8104f840>] msleep+0x20/0x30 [<ffffffffa0000839>] multipath_ioctl+0x109/0x170 [dm_multipath] [<ffffffffa06bfb9c>] dm_blk_ioctl+0xbc/0xd0 [dm_mod] [<ffffffff8122a408>] __blkdev_driver_ioctl+0x28/0x30 [<ffffffff8122a79e>] blkdev_ioctl+0xce/0x730 [<ffffffff811970ac>] block_ioctl+0x3c/0x40 [<ffffffff8117321c>] do_vfs_ioctl+0x8c/0x340 [<ffffffff81166293>] ? sys_newfstat+0x33/0x40 [<ffffffff81173571>] sys_ioctl+0xa1/0xb0 [<ffffffff814d70a9>] system_call_fastpath+0x16/0x1b Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org # 3.5+ Acked-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26dm thin: do not set discard_zeroes_dataMike Snitzer
The dm thin pool target claims to support the zeroing of discarded data areas. This turns out to be incorrect when processing discards that do not exactly cover a complete number of blocks, so the target must always set discard_zeroes_data_unsupported. The thin pool target will zero blocks when they are allocated if the skip_block_zeroing feature is not specified. The block layer may send a discard that only partly covers a block. If a thin pool block is partially discarded then there is no guarantee that the discarded data will get zeroed before it is accessed again. Due to this, thin devices cannot claim discards will always zero data. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Joe Thornber <ejt@redhat.com> Cc: stable@vger.kernel.org # 3.4+ Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-09-26Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds
Pull c6x arch fixes from Mark Salter: - Add __NR_kcmp to generic syscall list - C6X: Use generic asm/barrier.h * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: syscalls: add __NR_kcmp syscall to generic unistd.h c6x: use asm-generic/barrier.h
2012-09-26MAINTAINERS: update Intel C600 SAS driver maintainersDave Jiang
Cc: Lukasz Dorau <lukasz.dorau@intel.com> Cc: Maciej Patelczyk <maciej.patelczyk@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-26syscalls: add __NR_kcmp syscall to generic unistd.hMark Salter
Commit d97b46a64 ("syscalls, x86: add __NR_kcmp syscall" ) added a new syscall to support checkpoint restore. It is currently x86-only, but that restriction will be removed in a subsequent patch. Unfortunately, the kernel checksyscalls script had a bug which suppressed any warning to other architectures that the kcmp syscall was not implemented. A patch to checksyscalls is being tested in linux-next and other architectures are seeing warnings about kcmp being unimplemented. This patch adds __NR_kcmp to <asm-generic/unistd.h> so that kcmp is wired in for architectures using the generic syscall list. Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-26ASoC: wm2000: Correct register sizeMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-09-26drm/udl: limit modes to the sku pixel limits.Dave Airlie
Otherwise when X starts we commonly get a black screen scanning out nothing, its wierd dpms on/off from userspace brings it back, With this on F18, multi-seat works again with my 1920x1200 monitor which is above the sku limit for the device I have. Cc: stable@vger.kernel.org Reviewed-by: Alex Deucher <alexander.deucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-09-26vmwgfx: corruption in vmw_event_fence_action_create()Dan Carpenter
We don't allocate enough data for this struct. As soon as we start modifying event->event on the next lines, then we're going beyond the end of the memory we allocated. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@gmail.com>
2012-09-26Merge branch 'drm-nouveau-fixes' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes These just silence some printks that we are seeing that we shouldn't * 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nvc0/ltcg: mask off intr 0x10 drm/nouveau: silence a debug message triggered by newer userspace
2012-09-26drm/nvc0/ltcg: mask off intr 0x10Ben Skeggs
NVIDIA do that at startup too on Fermi, so perhaps the heap of 0x10 intrs we receive are normal and we can ignore them. On Kepler NVIDIA *don't* do this, but the hardware appears to come up with the bit masked off by default - so that's probably why :) This should silence some interrupt spam seen on Fermi+ boards. Backported patch from reworked nouveau kernel tree. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-09-26drm/nouveau: silence a debug message triggered by newer userspaceBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-09-25netfilter: xt_limit: have r->cost != 0 case workJan Engelhardt
Commit v2.6.19-rc1~1272^2~41 tells us that r->cost != 0 can happen when a running state is saved to userspace and then reinstated from there. Make sure that private xt_limit area is initialized with correct values. Otherwise, random matchings due to use of uninitialized memory. Signed-off-by: Jan Engelhardt <jengelh@inai.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-09-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull more networking fixes from David Miller: 1) Eric Dumazet discovered and fixed what turned out to be a family of bugs. These functions were using pskb_may_pull() which might need to reallocate the linear SKB data buffer, but the callers were not expecting this possibility. The callers have cached pointers to the packet header areas, and would need to reload them if we were to continue using pskb_may_pull(). So they could end up reading garbage. It's easier to just change these RAW4/RAW6/MIP6 routines to use skb_header_pointer() instead of pskb_may_pull(), which won't modify the linear SKB data area. 2) Dave Jone's syscall spammer caught a case where a non-TCP socket can call down into the TCP keepalive code. The case basically involves creating a raw socket with sk_protocol == IPPROTO_TCP, then calling setsockopt(sock_fd, SO_KEEPALIVE, ...) Fixed by Eric Dumazet. 3) Bluetooth devices do not get configured properly while being powered on, resulting in always using legacy pairing instead of SSP. Fix from Andrzej Kaczmarek. 4) Bluetooth cancels delayed work erroneously, put stricter checks in place. From Andrei Emeltchenko. 5) Fix deadlock between cfg80211_mutex and reg_regdb_search_mutex in cfg80211, from Luis R. Rodriguez. 6) Fix interrupt double release in iwlwifi, from Emmanuel Grumbach. 7) Missing module license in bcm87xx driver, from Peter Huewe. 8) Team driver can lose port changed events when adding devices to a team, fix from Jiri Pirko. 9) Fix endless loop when trying ot unregister PPPOE device in zombie state, from Xiaodong Xu. 10) batman-adv layer needs to set MAC address of software device earlier, otherwise we call tt_local_add with it uninitialized. 11) Fix handling of KSZ8021 PHYs, it's matched currently by KS8051 but that doesn't program the device properly. From Marek Vasut. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: ipv6: mip6: fix mip6_mh_filter() ipv6: raw: fix icmpv6_filter() net: guard tcp_set_keepalive() to tcp sockets phy/micrel: Add missing header to micrel_phy.h phy/micrel: Rename KS80xx to KSZ80xx phy/micrel: Implement support for KSZ8021 batman-adv: Fix symmetry check / route flapping in multi interface setups batman-adv: Fix change mac address of soft iface. pppoe: drop PPPOX_ZOMBIEs in pppoe_release team: send port changed when added ipv4: raw: fix icmp_filter() net/phy/bcm87xx: Add MODULE_LICENSE("GPL") to GPL driver iwlwifi: don't double free the interrupt in failure path cfg80211: fix possible circular lock on reg_regdb_search() Bluetooth: Fix not removing power_off delayed work Bluetooth: Fix freeing uninitialized delayed works Bluetooth: mgmt: Fix enabling LE while powered off Bluetooth: mgmt: Fix enabling SSP while powered off
2012-09-25ipv6: mip6: fix mip6_mh_filter()Eric Dumazet
mip6_mh_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-mergeDavid S. Miller
Included fixes: - fix the behaviour of batman-adv in case of virtual interface MAC change event - fix symmetric link check in neighbour selection Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25ipv6: raw: fix icmpv6_filter()Eric Dumazet
icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-25Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds
Pull SuperH fix from Paul Mundt: "One last minute regression fix.." * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: sh: pfc: Fix up GPIO mux type reconfig case.
2012-09-25Merge branch 'akpm' (sundry from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "One maintainer change and three bugfixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (4 commits) c/r: prctl: fix build error for no-MMU case lib/flex_proportions.c: fix corruption of denominator in flexible proportions checksyscalls: fix "here document" handling pwm-backlight: take over maintenance
2012-09-25c/r: prctl: fix build error for no-MMU caseMark Salter
Commit 1ad75b9e1628 ("c/r: prctl: add minimal address test to PR_SET_MM") added some address checking to prctl_set_mm() used by checkpoint-restore. This causes a build error for no-MMU systems: kernel/sys.c: In function 'prctl_set_mm': kernel/sys.c:1868:34: error: 'mmap_min_addr' undeclared (first use in this function) The test for mmap_min_addr doesn't make a lot of sense for no-MMU code as noted in commit 6e1415467614 ("NOMMU: Optimise away the {dac_,}mmap_min_addr tests"). This patch defines mmap_min_addr as 0UL in the no-MMU case so that the compiler will optimize away tests for "addr < mmap_min_addr". Signed-off-by: Mark Salter <msalter@redhat.com> Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: <stable@vger.kernel.org> [3.6.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-25lib/flex_proportions.c: fix corruption of denominator in flexible proportionsJan Kara
When racing with CPU hotplug, percpu_counter_sum() can return negative values for the number of observed events. This confuses fprop_new_period(), which uses unsigned type and as a result number of events is set to big *positive* number. From that moment on, things go pear shaped and can result e.g. in division by zero as denominator is later truncated to 32-bits. This bug causes a divide-by-zero oops in bdi_dirty_limit() in Borislav's 3.6.0-rc6 based kernel. Fix the issue by using a signed type in fprop_new_period(). That makes us bail out from the function without doing anything (mistakenly) thinking there are no events to age. That makes aging somewhat inaccurate but getting accurate data would be rather hard. Signed-off-by: Jan Kara <jack@suse.cz> Reported-by: Borislav Petkov <bp@amd64.org> Reported-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-25checksyscalls: fix "here document" handlingHeiko Carstens
"echo" doesn't read from stdin, therefore the checksyscalls script didn't warn about not implemented system calls anymore since 29dc54c6 ("checksyscalls: Use arch/x86/syscalls/syscall_32.tbl as source"). Use "cat" instead of "echo" which handles this correctly. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Michal Marek <mmarek@suse.cz> Cc: H. Peter Anvin <hpa@linux.intel.com> Cc: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-25pwm-backlight: take over maintenanceThierry Reding
Since the pwm-backlight driver is lacking a proper maintainer and is the heaviest user of the PWM framework I'm taking over maintenance. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Arun Murthy <arun.murthy@stericsson.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Robert Morell <rmorell@nvidia.com> Cc: Dilan Lee <dilee@nvidia.com> Cc: Axel Lin <axel.lin@gmail.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-25regulator: tps6586x: remove regulator-compatible from DT docsStephen Warren
Commit "regulator: deprecate regulator-compatible DT property" deprecated the use of the regulator-compatible DT property. Update the DT example in the TPS6586x binding documentation to reflect this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-25regulator: tps65217.txt: remove regulator-compatible from DT docsStephen Warren
Commit "regulator: deprecate regulator-compatible DT property" deprecated the use of the regulator-compatible DT property. Update the DT example in the TPS65217 binding documentation to reflect this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-25regulator: deprecate regulator-compatible DT propertyStephen Warren
When the bindings for the TPS6586x regulator were being proposed, I asserted that DT node naming rules for bus child nodes should also be applied to nodes inside the TPS6586x regulator node itself. In other words, that each node providing regulator init data should be named after the type of object it represented ("regulator") and hence that some other property was required to indicate which regulator the node described ("regulator-compatible"). In turn this led to multiple nodes having the same name, thus requiring node names to use a unit address to make them unique, thus requiring reg properties within the nodes and However, subsequent discussion indicates that the rules I was asserting only applies to standardized bus nodes, and within a device's own node, the binding can basically do anything sane that it wants. Hence, this change deprecates the register-compatible property, and instead uses node names to replace this functionality. This greatly simplifies the device tree content, making them smaller and more legible. The code is changed such that old device trees continue to work. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-25sb_edac: Avoid overflow errors at memory size calculationMauro Carvalho Chehab
Sandy bridge EDAC is calculating the memory size with overflow. Basically, the size field and the integer calculation is using 32 bits. More bits are needed, when the DIMM memories have high density. The net result is that memories are improperly reported there, when high-density DIMMs are used: EDAC DEBUG: in drivers/edac/sb_edac.c, line at 591: mc#0: channel 0, dimm 0, -16384 Mb (-4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800 EDAC DEBUG: in drivers/edac/sb_edac.c, line at 591: mc#0: channel 1, dimm 0, -16384 Mb (-4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800 As the number of pages value is handled at the EDAC core as unsigned ints, the driver shows the 16 GB memories at sysfs interface as 16760832 MB! The fix is simple: calculate the number of pages as unsigned 64-bits integer. After the patch, the memory size (16 GB) is properly detected: EDAC DEBUG: in drivers/edac/sb_edac.c, line at 592: mc#0: channel 0, dimm 0, 16384 Mb (4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800 EDAC DEBUG: in drivers/edac/sb_edac.c, line at 592: mc#0: channel 1, dimm 0, 16384 Mb (4194304 pages) bank: 8, rank: 2, row: 0x10000, col: 0x800 Cc: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-25i5000: Fix the memory size calculation with 2R memoriesMauro Carvalho Chehab
When 2R memories are found, the memory size should be multiplied by two, otherwise, it will report half of the memory size: +-----------------------------------------------+ | mc0 | | branch0 | branch1 | | channel0 | channel1 | channel0 | channel1 | -------+-----------------------------------------------+ slot3: | 0 MB | 0 MB | 0 MB | 0 MB | slot2: | 0 MB | 0 MB | 0 MB | 0 MB | -------+-----------------------------------------------+ slot1: | 0 MB | 0 MB | 0 MB | 0 MB | slot0: | 1024 MB | 1024 MB | 1024 MB | 1024 MB | -------+-----------------------------------------------+ (the above machine have 4 x 2GB 2R memories) Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-25i3200_edac: Fix memory rank sizeMauro Carvalho Chehab
commit a895bf8b1e1ea4c032a8fa8a09475a2ce09fe77a incorrectly changed the logic that fills the memory bank size. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-25iommu: static inline iommu group stub functionsAlex Williamson
Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-25sh: pfc: Fix up GPIO mux type reconfig case.Paul Mundt
Some drivers need to switch pin states between GPIO and pin function at runtime, which was inadvertently broken in the pinctrl driver for GPIOs being bound to a specific direction. This fixes up the request path to ensure that previously configured GPIOs don't cause us to inadvertently error out with an unsupported mux on reconfig, which in practice is primarily aimed at trapping pull-up/down users that have yet to be implemented under the new API. Fixes up regressions in the TPU PWM driver, amongst others. Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-09-25Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: ==================== Please pull this last(?) batch of fixes intended for 3.6... For the Bluetooth bits, Gustavo says this: "Here goes probably my last update to 3.6. It includes the two patches you were ok last week(from Andrzej Kaczmarek), those are critical ones, and two other fixes one for a system crash and the other for a missing lockdep annotation." The referenced fixes from Andrzej prevent attempts to configure devices that are powered-off. Along with the Bluetooth fixes, there are a couple of 802.11 fixes. Emmanuel Grumbach gives us an iwlwifi fix to prevent releasing an interrupt twice. Luis R. Rodriguez provides a fix for a possible circular lock dependency in the cfg80211 regulatory enforcement code. All of these have been in linux-next for a few days. I hope they are not too late to make the 3.6 release! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds
Pull tile gxio ABI fix from Chris Metcalf: "This fixes a last-minute change in the Tilera hypervisor ABI for TRIO (PCI root complex) support. We've locked in this ABI going forward and will make sure no further ABI changes like this occur." * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: gxio iorpc numbering change for TRIO interface
2012-09-24Merge tag 'vfio-for-linus' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull vfio fixes from Alex Williamson: "VFIO doc update and virqfd race fix" * tag 'vfio-for-linus' of git://github.com/awilliam/linux-vfio: vfio: Fix virqfd release race vfio: Trivial Documentation correction
2012-09-24Merge tag 'stable/for-linus-3.6-rc7-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull a Xen fix from Konrad Rzeszutek Wilk: "It is a bug-fix when we run the initial PV guest on a AMD K8 machine and have CONFIG_AMD_NUMA enabled and detect the NUMA topology from the Northbridge. We end up in the situation where the initial domain gets too much information and gets confused and crashes - the fix is to restrict the domain to get the information - and we do it by just disabling NUMA on the PV guest (the hypervisor is still able to do its proper NUMA allocations of guests). It is OK to disable the PV guest from accessing NUMA data as right now we do not inject any NUMA node information to the PV guests. When we do get to that point, then this patch will have to be reverted." * Disable PV NUMA support as we do not do anything with it (yet) and it can cause bootup crashes on certain AMD machines. * tag 'stable/for-linus-3.6-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/boot: Disable NUMA for PV guests.
2012-09-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull two ceph fixes from Sage Weil: "The first fixes a leak in the rbd setup error path, and the second fixes a more serious problem with mismatched kmap/kunmap that surfaced after the recent refactoring work." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: only kunmap kmapped pages rbd: drop dev reference on error in rbd_open()
2012-09-24net: guard tcp_set_keepalive() to tcp socketsEric Dumazet
Its possible to use RAW sockets to get a crash in tcp_set_keepalive() / sk_reset_timer() Fix is to make sure socket is a SOCK_STREAM one. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>