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2012-01-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit: (29 commits) audit: no leading space in audit_log_d_path prefix audit: treat s_id as an untrusted string audit: fix signedness bug in audit_log_execve_info() audit: comparison on interprocess fields audit: implement all object interfield comparisons audit: allow interfield comparison between gid and ogid audit: complex interfield comparison helper audit: allow interfield comparison in audit rules Kernel: Audit Support For The ARM Platform audit: do not call audit_getname on error audit: only allow tasks to set their loginuid if it is -1 audit: remove task argument to audit_set_loginuid audit: allow audit matching on inode gid audit: allow matching on obj_uid audit: remove audit_finish_fork as it can't be called audit: reject entry,always rules audit: inline audit_free to simplify the look of generic code audit: drop audit_set_macxattr as it doesn't do anything audit: inline checks for not needing to collect aux records audit: drop some potentially inadvisable likely notations ... Use evil merge to fix up grammar mistakes in Kconfig file. Bad speling and horrible grammar (and copious swearing) is to be expected, but let's keep it to commit messages and comments, rather than expose it to users in config help texts or printouts.
2012-01-17audit: inline audit_syscall_entry to reduce burden on archsEric Paris
Every arch calls: if (unlikely(current->audit_context)) audit_syscall_entry() which requires knowledge about audit (the existance of audit_context) in the arch code. Just do it all in static inline in audit.h so that arch's can remain blissfully ignorant. Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-17Audit: push audit success and retcode into arch ptrace.hEric Paris
The audit system previously expected arches calling to audit_syscall_exit to supply as arguments if the syscall was a success and what the return code was. Audit also provides a helper AUDITSC_RESULT which was supposed to simplify things by converting from negative retcodes to an audit internal magic value stating success or failure. This helper was wrong and could indicate that a valid pointer returned to userspace was a failed syscall. The fix is to fix the layering foolishness. We now pass audit_syscall_exit a struct pt_reg and it in turns calls back into arch code to collect the return value and to determine if the syscall was a success or failure. We also define a generic is_syscall_success() macro which determines success/failure based on if the value is < -MAX_ERRNO. This works for arches like x86 which do not use a separate mechanism to indicate syscall failure. We make both the is_syscall_success() and regs_return_value() static inlines instead of macros. The reason is because the audit function must take a void* for the regs. (uml calls theirs struct uml_pt_regs instead of just struct pt_regs so audit_syscall_exit can't take a struct pt_regs). Since the audit function takes a void* we need to use static inlines to cast it back to the arch correct structure to dereference it. The other major change is that on some arches, like ia64, MIPS and ppc, we change regs_return_value() to give us the negative value on syscall failure. THE only other user of this macro, kretprobe_example.c, won't notice and it makes the value signed consistently for the audit functions across all archs. In arch/sh/kernel/ptrace_64.c I see that we were using regs[9] in the old audit code as the return value. But the ptrace_64.h code defined the macro regs_return_value() as regs[3]. I have no idea which one is correct, but this patch now uses the regs_return_value() function, so it now uses regs[3]. For powerpc we previously used regs->result but now use the regs_return_value() function which uses regs->gprs[3]. regs->gprs[3] is always positive so the regs_return_value(), much like ia64 makes it negative before calling the audit code when appropriate. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: H. Peter Anvin <hpa@zytor.com> [for x86 portion] Acked-by: Tony Luck <tony.luck@intel.com> [for ia64] Acked-by: Richard Weinberger <richard@nod.at> [for uml] Acked-by: David S. Miller <davem@davemloft.net> [for sparc] Acked-by: Ralf Baechle <ralf@linux-mips.org> [for mips] Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [for ppc]
2012-01-16Merge branch 'kbuild' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Kbuild: Use dtc's -d (dependency) option dtc: Implement -d option to write out a dependency file kbuild: Fix comment in Makefile.lib scripts/genksyms: clean lex/yacc generated files kbuild: Correctly deal with make options which contain an "s"
2012-01-14Kbuild: Use dtc's -d (dependency) optionStephen Warren
This hooks dtc into Kbuild's dependency system. Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous lack of this feature recently caused me to have very confusing "git bisect" results. For ARM, it's obvious what to add to $(targets). I'm not familiar enough with other architectures to know what to add there. Powerpc appears to already add various .dtb files into $(targets), but the other archs may need something added to $(targets) to work. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> [mmarek: Dropped arch/c6x part to avoid merging commits from the middle of the merge window] Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-14Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix unpaired __trace_hcall_entry and __trace_hcall_exit powerpc: Fix RCU idle and hcall tracing
2012-01-13kexec: remove KMSG_DUMP_KEXECWANG Cong
KMSG_DUMP_KEXEC is useless because we already save kernel messages inside /proc/vmcore, and it is unsafe to allow modules to do other stuffs in a crash dump scenario. [akpm@linux-foundation.org: fix powerpc build] Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Reported-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: Jarod Wilson <jarod@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-13cpumask: update setup_node_to_cpumask_map() commentsWanlong Gao
node_to_cpumask() has been replaced by cpumask_of_node(), and wholly removed since commit 29c337a0 ("cpumask: remove obsolete node_to_cpumask now everyone uses cpumask_of_node"). So update the comments for setup_node_to_cpumask_map(). Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-13treewide: convert uses of ATTRIB_NORETURN to __noreturnJoe Perches
Use the more commonly used __noreturn instead of ATTRIB_NORETURN. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Joe Perches <joe@perches.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-13treewide: remove useless NORET_TYPE macro and usesJoe Perches
It's a very old and now unused prototype marking so just delete it. Neaten panic pointer argument style to keep checkpatch quiet. Signed-off-by: Joe Perches <joe@perches.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12Merge branch 'linux-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits) x86/PCI: Expand the x86_msi_ops to have a restore MSIs. PCI: Increase resource array mask bit size in pcim_iomap_regions() PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT) PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB x86/PCI: amd: factor out MMCONFIG discovery PCI: Enable ATS at the device state restore PCI: msi: fix imbalanced refcount of msi irq sysfs objects PCI: kconfig: English typo in pci/pcie/Kconfig PCI/PM/Runtime: make PCI traces quieter PCI: remove pci_create_bus() xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources sparc/PCI: convert to pci_create_root_bus() sh/PCI: convert to pci_scan_root_bus() for correct root bus resources powerpc/PCI: convert to pci_create_root_bus() powerpc/PCI: split PHB part out of pcibios_map_io_space() ... Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due to the same patches being applied in other branches.
2012-01-11Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
lib: use generic pci_iomap on all architectures Many architectures don't want to pull in iomap.c, so they ended up duplicating pci_iomap from that file. That function isn't trivial, and we are going to modify it https://lkml.org/lkml/2011/11/14/183 so the duplication hurts. This reduces the scope of the problem significantly, by moving pci_iomap to a separate file and referencing that from all architectures. * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: alpha: drop pci_iomap/pci_iounmap from pci-noop.c mn10300: switch to GENERIC_PCI_IOMAP mn10300: add missing __iomap markers frv: switch to GENERIC_PCI_IOMAP tile: switch to GENERIC_PCI_IOMAP tile: don't panic on iomap sparc: switch to GENERIC_PCI_IOMAP sh: switch to GENERIC_PCI_IOMAP powerpc: switch to GENERIC_PCI_IOMAP parisc: switch to GENERIC_PCI_IOMAP mips: switch to GENERIC_PCI_IOMAP microblaze: switch to GENERIC_PCI_IOMAP arm: switch to GENERIC_PCI_IOMAP alpha: switch to GENERIC_PCI_IOMAP lib: add GENERIC_PCI_IOMAP lib: move GENERIC_IOMAP to lib/Kconfig Fix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig
2012-01-11powerpc: Fix unpaired __trace_hcall_entry and __trace_hcall_exitLi Zhong
Unpaired calling of __trace_hcall_entry and __trace_hcall_exit could cause incorrect preempt count. And it might happen as the global variable hcall_tracepoint_refcount is checked separately before calling them. Instead, store the value that was used on entry in the stack frame and retreive it from there after the call Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-01-11powerpc: Fix RCU idle and hcall tracingAnton Blanchard
Tracepoints should not be called inside an rcu_idle_enter/rcu_idle_exit region. Since pSeries calls H_CEDE in the idle loop, we were violating this rule. commit a7b152d5342c (powerpc: Tell RCU about idle after hcall tracing) tried to work around it by delaying the rcu_idle_enter until after we called the hcall tracepoint, but there are a number of issues with it. The hcall tracepoint trampoline code is called conditionally when the tracepoint is enabled. If the tracepoint is not enabled we never call rcu_idle_enter. The idle_uses_rcu check was also done at compile time which breaks multiplatform builds. The simple fix is to avoid tracing H_CEDE and rely on other tracepoints and the hypervisor dispatch trace log to work out if we called H_CEDE. This fixes a hang during boot on pSeries. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-01-10Merge branch 'kvm-updates/3.3' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/3.3' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (74 commits) KVM: PPC: Whitespace fix for kvm.h KVM: Fix whitespace in kvm_para.h KVM: PPC: annotate kvm_rma_init as __init KVM: x86 emulator: implement RDPMC (0F 33) KVM: x86 emulator: fix RDPMC privilege check KVM: Expose the architectural performance monitoring CPUID leaf KVM: VMX: Intercept RDPMC KVM: SVM: Intercept RDPMC KVM: Add generic RDPMC support KVM: Expose a version 2 architectural PMU to a guests KVM: Expose kvm_lapic_local_deliver() KVM: x86 emulator: Use opcode::execute for Group 9 instruction KVM: x86 emulator: Use opcode::execute for Group 4/5 instructions KVM: x86 emulator: Use opcode::execute for Group 1A instruction KVM: ensure that debugfs entries have been created KVM: drop bsp_vcpu pointer from kvm struct KVM: x86: Consolidate PIT legacy test KVM: x86: Do not rely on implicit inclusions KVM: Make KVM_INTEL depend on CPU_SUP_INTEL KVM: Use memdup_user instead of kmalloc/copy_from_user ...
2012-01-09Merge branch 'tty-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty * 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (65 commits) tty: serial: imx: move del_timer_sync() to avoid potential deadlock imx: add polled io uart methods imx: Add save/restore functions for UART control regs serial/imx: let probing fail for the dt case without a valid alias serial/imx: propagate error from of_alias_get_id instead of using -ENODEV tty: serial: imx: Allow UART to be a source for wakeup serial: driver for m32 arch should not have DEC alpha errata serial/documentation: fix documented name of DCD cpp symbol atmel_serial: fix spinlock lockup in RS485 code tty: Fix memory leak in virtual console when enable unicode translation serial: use DIV_ROUND_CLOSEST instead of open coding it serial: add support for 400 and 800 v3 series Titan cards serial: bfin-uart: Remove ASYNC_CTS_FLOW flag for hardware automatic CTS. serial: bfin-uart: Enable hardware automatic CTS only when CTS pin is available. serial: make FSL errata depend on 8250_CONSOLE, not just 8250 serial: add irq handler for Freescale 16550 errata. serial: manually inline serial8250_handle_port serial: make 8250 timeout use the specified IRQ handler serial: export the key functions for an 8250 IRQ handler serial: clean up parameter passing for 8250 Rx IRQ handling ...
2012-01-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits) Kconfig: acpi: Fix typo in comment. misc latin1 to utf8 conversions devres: Fix a typo in devm_kfree comment btrfs: free-space-cache.c: remove extra semicolon. fat: Spelling s/obsolate/obsolete/g SCSI, pmcraid: Fix spelling error in a pmcraid_err() call tools/power turbostat: update fields in manpage mac80211: drop spelling fix types.h: fix comment spelling for 'architectures' typo fixes: aera -> area, exntension -> extension devices.txt: Fix typo of 'VMware'. sis900: Fix enum typo 'sis900_rx_bufer_status' decompress_bunzip2: remove invalid vi modeline treewide: Fix comment and string typo 'bufer' hyper-v: Update MAINTAINERS treewide: Fix typos in various parts of the kernel, and fix some comments. clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR gpio: Kconfig: drop unknown symbol 'CS5535_GPIO' leds: Kconfig: Fix typo 'D2NET_V2' sound: Kconfig: drop unknown symbol ARCH_CLPS7500 ... Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new kconfig additions, close to removed commented-out old ones)
2012-01-08Merge branch 'pm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
2012-01-08Merge branch 'for-linus2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits) reiserfs: Properly display mount options in /proc/mounts vfs: prevent remount read-only if pending removes vfs: count unlinked inodes vfs: protect remounting superblock read-only vfs: keep list of mounts for each superblock vfs: switch ->show_options() to struct dentry * vfs: switch ->show_path() to struct dentry * vfs: switch ->show_devname() to struct dentry * vfs: switch ->show_stats to struct dentry * switch security_path_chmod() to struct path * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb vfs: trim includes a bit switch mnt_namespace ->root to struct mount vfs: take /proc/*/mounts and friends to fs/proc_namespace.c vfs: opencode mntget() mnt_set_mountpoint() vfs: spread struct mount - remaining argument of next_mnt() vfs: move fsnotify junk to struct mount vfs: move mnt_devname vfs: move mnt_list to struct mount vfs: switch pnode.h macros to struct mount * ...
2012-01-07Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Changes queued in gpio/next for the start of the 3.3 merge window * tag 'gpio-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6: gpio: Add decode of WM8994 GPIO configuration gpio: Convert GPIO drivers to module_platform_driver gpio: Fix typo in comment in Samsung driver gpio: Explicitly index samsung_gpio_cfgs gpio: Add Linus Walleij as gpio co-maintainer of: Add device tree selftests of: create of_phandle_args to simplify return of phandle parsing data gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags() gpio/microblaze: Eliminate duplication of of_get_named_gpio_flags() gpiolib: output basic details and consolidate gpio device drivers pch_gpio: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor pch_gpio: Support new device LAPIS Semiconductor ML7831 IOH spi/pl022: make the chip deselect handling thread safe spi/pl022: add support for pm_runtime autosuspend spi/pl022: disable the PL022 block when unused spi/pl022: move device disable to workqueue thread spi/pl022: skip default configuration before suspending spi/pl022: fix build warnings spi/pl022: only enable RX interrupts when TX is complete
2012-01-07Merge branch 'driver-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits) arm: fix up some samsung merge sysdev conversion problems firmware: Fix an oops on reading fw_priv->fw in sysfs loading file Drivers:hv: Fix a bug in vmbus_driver_unregister() driver core: remove __must_check from device_create_file debugfs: add missing #ifdef HAS_IOMEM arm: time.h: remove device.h #include driver-core: remove sysdev.h usage. clockevents: remove sysdev.h arm: convert sysdev_class to a regular subsystem arm: leds: convert sysdev_class to a regular subsystem kobject: remove kset_find_obj_hinted() m86k: gpio - convert sysdev_class to a regular subsystem mips: txx9_sram - convert sysdev_class to a regular subsystem mips: 7segled - convert sysdev_class to a regular subsystem sh: dma - convert sysdev_class to a regular subsystem sh: intc - convert sysdev_class to a regular subsystem power: suspend - convert sysdev_class to a regular subsystem power: qe_ic - convert sysdev_class to a regular subsystem power: cmm - convert sysdev_class to a regular subsystem s390: time - convert sysdev_class to a regular subsystem ... Fix up conflicts with 'struct sysdev' removal from various platform drivers that got changed: - arch/arm/mach-exynos/cpu.c - arch/arm/mach-exynos/irq-eint.c - arch/arm/mach-s3c64xx/common.c - arch/arm/mach-s3c64xx/cpu.c - arch/arm/mach-s5p64x0/cpu.c - arch/arm/mach-s5pv210/common.c - arch/arm/plat-samsung/include/plat/cpu.h - arch/powerpc/kernel/sysfs.c and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
2012-01-07Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into ZAl Viro
2012-01-07Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits) powerpc: fix compile error with 85xx/p1010rdb.c powerpc: fix compile error with 85xx/p1023_rds.c powerpc/fsl: add MSI support for the Freescale hypervisor arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree powerpc/fsl: Add support for Integrated Flash Controller powerpc/fsl: update compatiable on fsl 16550 uart nodes powerpc/85xx: fix PCI and localbus properties in p1022ds.dts powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig powerpc/fsl: Update defconfigs to enable some standard FSL HW features powerpc: Add TBI PHY node to first MDIO bus sbc834x: put full compat string in board match check powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit offb: Fix setting of the pseudo-palette for >8bpp offb: Add palette hack for qemu "standard vga" framebuffer offb: Fix bug in calculating requested vram size powerpc/boot: Change the WARN to INFO for boot wrapper overlap message powerpc/44x: Fix build error on currituck platform powerpc/boot: Change the load address for the wrapper to fit the kernel powerpc/44x: Enable CRASH_DUMP for 440x ... Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to the additional sparse-checking code for cputime_t.
2012-01-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits) net: pack skb_shared_info more efficiently net_sched: red: split red_parms into parms and vars net_sched: sfq: extend limits cnic: Improve error recovery on bnx2x devices cnic: Re-init dev->stats_addr after chip reset net_sched: Bug in netem reordering bna: fix sparse warnings/errors bna: make ethtool_ops and strings const xgmac: cleanups net: make ethtool_ops const vmxnet3" make ethtool ops const xen-netback: make ops structs const virtio_net: Pass gfp flags when allocating rx buffers. ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call igb: reset PHY after recovering from PHY power down igb: add basic runtime PM support igb: Add support for byte queue limits. e1000: cleanup CE4100 MDIO registers access e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove ...
2012-01-06powerpc/PCI: convert to pci_create_root_bus()Bjorn Helgaas
Convert from pci_create_bus() to pci_create_root_bus(). This way the root bus resources are correct immediately. This patch doesn't fix a problem because powerpc fixed the resources before scanning the bus, but it makes powerpc more consistent with other architectures. v2: fix build error with resource pointer passing CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06powerpc/PCI: split PHB part out of pcibios_map_io_space()Bjorn Helgaas
No functional change. This is so we can use pcibios_phb_map_io_space() before we have a struct pci_bus. v2: fix map io phb typo CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06powerpc/PCI: make pcibios_setup_phb_resources() staticBjorn Helgaas
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06PCI: PowerPC: convert pcibios_set_master() to a non-inlined functionMyron Stowe
This patch converts PowerPC's architecture-specific 'pcibios_set_master()' routine to a non-inlined function. This will allow follow on patches to create a generic 'pcibios_set_master()' function using the '__weak' attribute which can be used by all architectures as a default which, if necessary, can then be over- ridden by architecture-specific code. Converting 'pci_bios_set_master()' to a non-inlined function will allow PowerPC's 'pcibios_set_master()' implementation to remain architecture-specific after the generic version is introduced and thus, not change current behavior. No functional change. Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06Merge branch 'driver-core-next' into Linux 3.2Greg Kroah-Hartman
This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file, and it fixes the build error in the arch/x86/kernel/microcode_core.c file, that the merge did not catch. The microcode_core.c patch was provided by Stephen Rothwell <sfr@canb.auug.org.au> who was invaluable in the merge issues involved with the large sysdev removal process in the driver-core tree. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-06Merge branch 'sched-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) sched/tracing: Add a new tracepoint for sleeptime sched: Disable scheduler warnings during oopses sched: Fix cgroup movement of waking process sched: Fix cgroup movement of newly created process sched: Fix cgroup movement of forking process sched: Remove cfs bandwidth period check in tg_set_cfs_period() sched: Fix load-balance lock-breaking sched: Replace all_pinned with a generic flags field sched: Only queue remote wakeups when crossing cache boundaries sched: Add missing rcu_dereference() around ->real_parent usage [S390] fix cputime overflow in uptime_proc_show [S390] cputime: add sparse checking and cleanup sched: Mark parent and real_parent as __rcu sched, nohz: Fix missing RCU read lock sched, nohz: Set the NOHZ_BALANCE_KICK flag for idle load balancer sched, nohz: Fix the idle cpu check in nohz_idle_balance sched: Use jump_labels for sched_feat sched/accounting: Fix parameter passing in task_group_account_field sched/accounting: Fix user/system tick double accounting sched/accounting: Re-use scheduler statistics for the root cgroup ... Fix up conflicts in - arch/ia64/include/asm/cputime.h, include/asm-generic/cputime.h usecs_to_cputime64() vs the sparse cleanups - kernel/sched/fair.c, kernel/time/tick-sched.c scheduler changes in multiple branches
2012-01-06Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits) cpu: Export cpu_up() rcu: Apply ACCESS_ONCE() to rcu_boost() return value Revert "rcu: Permit rt_mutex_unlock() with irqs disabled" docs: Additional LWN links to RCU API rcu: Augment rcu_batch_end tracing for idle and callback state rcu: Add rcutorture tests for srcu_read_lock_raw() rcu: Make rcutorture test for hotpluggability before offlining CPUs driver-core/cpu: Expose hotpluggability to the rest of the kernel rcu: Remove redundant rcu_cpu_stall_suppress declaration rcu: Adaptive dyntick-idle preparation rcu: Keep invoking callbacks if CPU otherwise idle rcu: Irq nesting is always 0 on rcu_enter_idle_common rcu: Don't check irq nesting from rcu idle entry/exit rcu: Permit dyntick-idle with callbacks pending rcu: Document same-context read-side constraints rcu: Identify dyntick-idle CPUs on first force_quiescent_state() pass rcu: Remove dynticks false positives and RCU failures rcu: Reduce latency of rcu_prepare_for_idle() rcu: Eliminate RCU_FAST_NO_HZ grace-period hang rcu: Avoid needlessly IPIing CPUs at GP end ...
2012-01-06Merge branch 'core-memblock-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) memblock: Reimplement memblock allocation using reverse free area iterator memblock: Kill early_node_map[] score: Use HAVE_MEMBLOCK_NODE_MAP s390: Use HAVE_MEMBLOCK_NODE_MAP mips: Use HAVE_MEMBLOCK_NODE_MAP ia64: Use HAVE_MEMBLOCK_NODE_MAP SuperH: Use HAVE_MEMBLOCK_NODE_MAP sparc: Use HAVE_MEMBLOCK_NODE_MAP powerpc: Use HAVE_MEMBLOCK_NODE_MAP memblock: Implement memblock_add_node() memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users memblock: Track total size of regions automatically powerpc: Cleanup memblock usage memblock: Reimplement memblock_enforce_memory_limit() using __memblock_remove() memblock: Make memblock functions handle overflowing range @size memblock: Reimplement __memblock_remove() using memblock_isolate_range() memblock: Separate out memblock_isolate_range() from memblock_set_node() memblock: Kill memblock_init() memblock: Kill sentinel entries at the end of static region arrays memblock: Add __memblock_dump_all() ...
2012-01-04powerpc: fix compile error with 85xx/p1010rdb.cTony Breeds
Current linux-next compiled with mpc85xx_defconfig causes this: arch/powerpc/platforms/85xx/p1010rdb.c:41:14: error: 'np' undeclared (first use in this function) arch/powerpc/platforms/85xx/p1023_rds.c:102:14: error: 'np' undeclared (first use in this function) Introduced in: commit 996983b75cebb1bc1c2c545f20336f24ebfa17af Author: Kyle Moffett <Kyle.D.Moffett@boeing.com> Date: Fri Dec 2 06:28:02 2011 +0000 powerpc/mpic: Search for open-pic device-tree node if NULL Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc: fix compile error with 85xx/p1023_rds.cMichael Neuling
Current linux-next compiled with mpc85xx_smp_defconfig causes this: arch/powerpc/platforms/85xx/p1023_rds.c: In function 'mpc85xx_rds_pic_init': arch/powerpc/platforms/85xx/p1023_rds.c:102:14: error: 'np' undeclared (first use in this function) arch/powerpc/platforms/85xx/p1023_rds.c:102:14: note: each undeclared identifier is reported only once for each function it appears in Introduced in: commit 996983b75cebb1bc1c2c545f20336f24ebfa17af Author: Kyle Moffett <Kyle.D.Moffett@boeing.com> Date: Fri Dec 2 06:28:02 2011 +0000 powerpc/mpic: Search for open-pic device-tree node if NULL Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/fsl: add MSI support for the Freescale hypervisorTimur Tabi
Add support for vmpic-msi nodes to the fsl_msi driver. The MSI is virtualized by the hypervisor, so the vmpic-msi does not contain a 'reg' property. Instead, the driver uses hcalls. Add support for the "msi-address-64" property to the fsl_pci driver. The Freescale hypervisor typically puts the virtualized MSIIR register in the page after the end of DDR, so we extend the DDR ATMU to cover it. Any other location for MSIIR is not supported, for now. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfreeJulia Lawall
rmu needs to be freed before leaving the function in an error case. A simplified version of the semantic match that finds the problem is as follows: (http://coccinelle.lip6.fr) // <smpl> @r exists@ local idexpression x; statement S; identifier f1; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } x->f1 ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/fsl: Add support for Integrated Flash ControllerPrabhakar Kushwaha
Integrated Flash Controller supports various flashes like NOR, NAND and other devices using NOR, NAND and GPCM Machine available on it. IFC supports four chip selects. Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Liu Shuo <b35362@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/fsl: update compatiable on fsl 16550 uart nodesKumar Gala
The Freescale serial port's are pretty much a 16550, however there are some FSL specific bugs and features. Add a "fsl,ns16550" compatiable string to allow code to handle those FSL specific issues. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/85xx: fix PCI and localbus properties in p1022ds.dtsTimur Tabi
PCI ranges, localbus reg and localbus chip-select 2 range do not match the memory map setup by bootloader. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfigTimur Tabi
Commit 7c4b2f09 (powerpc: Update mpc85xx/corenet 32-bit defconfigs) accidentally disabled the ePAPR byte channel driver in the defconfig for Freescale CoreNet platforms. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/fsl: Update defconfigs to enable some standard FSL HW featuresKumar Gala
corenet64_smp_defconfig: - enabled rapidio corenet32_smp_defconfig: - enabled hugetlbfs, rapidio mpc85xx_smp_defconfig: - enabled P1010RDB, hugetlbfs, SPI, SDHC, Crypto/CAAM mpc85xx_smp_defconfig: - enabled hugetlbfs, SPI, SDHC, Crypto/CAAM Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc: Add TBI PHY node to first MDIO busAndy Fleming
Systems which use the fsl_pq_mdio driver need to specify an address for TBI PHY transactions such that the address does not conflict with any PHYs on the bus (all transactions to that address are directed to the onboard TBI PHY). The driver used to scan for a free address if no address was specified, however this ran into issues when the PHY Lib was fixed so that all MDIO transactions were protected by a mutex. As it is, the code was meant to serve as a transitional tool until the device trees were all updated to specify the TBI address. The best fix for the mutex issue was to remove the scanning code, but it turns out some of the newer SoCs have started to omit the tbi-phy node when SGMII is not being used. As such, these devices will now fail unless we add a tbi-phy node to the first mdio controller. Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04sbc834x: put full compat string in board match checkPaul Gortmaker
The commit 883c2cfc8bcc0fd00c5d9f596fb8870f481b5bda: "fix of_flat_dt_is_compatible() to match the full compatible string" causes silent boot death on the sbc8349 board because it was just looking for 8349 and not 8349E -- as originally there were non-E (no SEC/encryption) chips available. Just add the E to the board detection string since all boards I've seen were manufactured with the E versions. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory addressKumar Gala
There is an issue on FSL-BookE 64-bit devices (P5020) in which PCIe devices that are capable of doing 64-bit DMAs (like an Intel e1000) do not function and crash the kernel if we have >4G of memory in the system. The reason is that the existing code only sets up one inbound window for access to system memory across PCIe. That window is limited to a 32-bit address space. So on systems we'll end up utilizing SWIOTLB for dma mappings. However SWIOTLB dma ops implement dma_alloc_coherent() as dma_direct_alloc_coherent(). Thus we can end up with dma addresses that are not accessible because of the inbound window limitation. We could possibly set the SWIOTLB alloc_coherent op to swiotlb_alloc_coherent() however that does not address the issue since the swiotlb_alloc_coherent() will behave almost identical to dma_direct_alloc_coherent() since the devices coherent_dma_mask will be greater than any address allocated by swiotlb_alloc_coherent() and thus we'll never bounce buffer it into a range that would be dma-able. The easiest and best solution is to just make it so that a 64-bit capable device is able to DMA to any internal system address. We accomplish this by opening up a second inbound window that maps all of memory above the internal SoC address width so we can set it up to access all of the internal SoC address space if needed. We than fixup the dma_ops and dma_offset for PCIe devices with a dma mask greater than the maximum internal SoC address. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04consolidate umode_t declarationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch spu_create(2) to use of SYSCALL_DEFINE4, make it use umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch spufs guts to umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch procfs to umode_t useAl Viro
both proc_dir_entry ->mode and populating functions Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04fs: move code out of buffer.cAl Viro
Move invalidate_bdev, block_sync_page into fs/block_dev.c. Export kill_bdev as well, so brd doesn't have to open code it. Reduce buffer_head.h requirement accordingly. Removed a rather large comment from invalidate_bdev, as it looked a bit obsolete to bother moving. The small comment replacing it says enough. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: fix the stupidity with i_dentry in inode destructorsAl Viro
Seeing that just about every destructor got that INIT_LIST_HEAD() copied into it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once(); the cost of taking it into inode_init_always() will be negligible for pipes and sockets and negative for everything else. Not to mention the removal of boilerplate code from ->destroy_inode() instances... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>