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2011-02-26sched: Clean up the IRQ_TIME_ACCOUNTING codeVenkatesh Pallipadi
Fix this warning: lkml.org/lkml/2011/1/30/124 kernel/sched.c:3719: warning: 'irqtime_account_idle_ticks' defined but not used kernel/sched.c:3720: warning: 'irqtime_account_process_tick' defined but not used In a cleaner way than: 7e9498705e81: sched: Add #ifdef around irq time accounting functions This patch will not have any functional impact. Signed-off-by: Venkatesh Pallipadi <venki@google.com> Cc: heiko.carstens@de.ibm.com Cc: a.p.zijlstra@chello.nl LKML-Reference: <1298675596-10992-1-git-send-email-venki@google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-25sched: Add #ifdef around irq time accounting functionsHeiko Carstens
Get rid of this: kernel/sched.c:3731:13: warning: 'irqtime_account_idle_ticks' defined but not used kernel/sched.c:3732:13: warning: 'irqtime_account_process_tick' defined but not used Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Venkatesh Pallipadi <venki@google.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20110225133228.GD7469@osiris.boeblingen.de.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-23sched, autogroup: Stop claiming ownership of the root task groupMike Galbraith
Disown it, and only display autogroup association if one exists. Signed-off-by: Mike Galbraith <efault@gmx.de> Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1298383320.8036.5.camel@marge.simson.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-23sched, autogroup: Stop going ahead if autogroup is disabledYong Zhang
when autogroup is disable from the beginning, sched_autogroup_create_attach() autogroup_move_group() <== 1 sched_move_task() <== 2 task_move_group_fair() set_task_rq() task_group() autogroup_task_group() We go the whole path without doing anything useful. Then stop going further if autogroup is disabled. But there will be a race window between 1 and 2, in which sysctl_sched_autogroup_enabled is enabled. This issue will be toke by following patch. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1298185696-4403-4-git-send-email-yong.zhang0@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-23sched, autogroup, sysctl: Use proc_dointvec_minmax() insteadYong Zhang
sched_autogroup_enabled has min/max value, proc_dointvec_minmax() is be used for this case. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1298185696-4403-2-git-send-email-yong.zhang0@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-23sched: Fix the group_imb logicPeter Zijlstra
On a 2*6*2 machine something like: taskset -c 3-11 bash -c 'for ((i=0;i<9;i++)) do while :; do :; done & done' _should_ result in 9 busy CPUs, each running 1 task. However it didn't quite work reliably, most of the time one cpu of the second socket (6-11) would be idle and one cpu of the first socket (0-5) would have two tasks on it. The group_imb logic is supposed to deal with this and detect when a particular group is imbalanced (like in our case, 0-2 are idle but 3-5 will have 4 tasks on it). The detection phase needed a bit of a tweak as it was too weak and required more than 2 avg weight tasks difference between idle and busy cpus in the group which won't trigger for our test-case. So cure that to be one or more avg task weight difference between cpus. Once the detection phase worked, it was then defeated by the f_b_g() tests trying to avoid ping-pongs. In particular, this_load >= max_load triggered because the pulling cpu (the (first) idle cpu in on the second socket, say 6) would find this_load to be 5 and max_load to be 4 (there'd be 5 tasks running on our socket and only 4 on the other socket). Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Nikhil Rao <ncrao@google.com> Cc: Venkatesh Pallipadi <venki@google.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-23sched: Clean up some f_b_g() commentsPeter Zijlstra
The existing comment tends to grow state (as it already has), split it up and place it near the actual tests. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Nikhil Rao <ncrao@google.com> Cc: Venkatesh Pallipadi <venki@google.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-23sched: Clean up remnants of sd_idlePeter Zijlstra
With the wholesale removal of the sd_idle SMT logic we can clean up some more. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Nikhil Rao <ncrao@google.com> Cc: Venkatesh Pallipadi <venki@google.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-23Merge commit 'v2.6.38-rc6' into sched/coreIngo Molnar
Merge reason: Pick up the latest fixes before queueing up new changes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-21Linux 2.6.38-rc6v2.6.38-rc6Linus Torvalds
2011-02-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6: eCryptfs: Copy up lower inode attrs in getattr ecryptfs: read on a directory should return EISDIR if not supported eCryptfs: Handle NULL nameidata pointers eCryptfs: Revert "dont call lookup_one_len to avoid NULL nameidata"
2011-02-21drm/i915: Do not handle backlight combination mode speciallyIndan Zupancic
The current code does not follow Intel documentation: It misses some things and does other, undocumented things. This causes wrong backlight values in certain conditions. Instead of adding tricky code handling badly documented and rare corner cases, don't handle combination mode specially at all. This way PCI_LBPC is never touched and weird things shouldn't happen. If combination mode is enabled, then the only downside is that changing the brightness has a greater granularity (the LBPC value), but LBPC is at most 254 and the maximum is in the thousands, so this is no real functional loss. A potential problem with not handling combined mode is that a brightness of max * PCI_LBPC is not bright enough. However, this is very unlikely because from the documentation LBPC seems to act as a scaling factor and doesn't look like it's supposed to be changed after boot. The value at boot should always result in a bright enough screen. IMPORTANT: However, although usually the above is true, it may not be when people ran an older (2.6.37) kernel which messed up the LBPC register, and they are unlucky enough to have a BIOS that saves and restores the LBPC value. Then a good kernel may seem to not work: Max brightness isn't bright enough. If this happens people should boot back into the old kernel, set brightness to the maximum, and then reboot. After that everything should be fine. For more information see the below links. This fixes bugs: http://bugzilla.kernel.org/show_bug.cgi?id=23472 http://bugzilla.kernel.org/show_bug.cgi?id=25072 Signed-off-by: Indan Zupancic <indan@nul.nu> Tested-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-21module: explicitly align module_version_attribute structureDmitry Torokhov
We force particular alignment when we generate attribute structures when generation MODULE_VERSION() data and we need to make sure that this alignment is followed when we iterate over these structures, otherwise we may crash on platforms whose natural alignment is not sizeof(void *), such as m68k. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Dmitry Torokhov <dtor@vmware.com> [ There are more issues here, but the fixes are incredibly ugly - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-21Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: dell-laptop: Toggle the unsupported hardware killswitch thinkpad_acpi: Always report scancodes for hotkeys acer-wmi: Fix capitalisation of GUID platform/x86: ideapad-laptop depends on INPUT platform: x86: acer-wmi: world-writable sysfs threeg file platform: x86: asus_acpi: world-writable procfs files platform: x86: tc1100-wmi: world-writable sysfs wireless and jogdial files platform-drivers: x86: pmic: Use request_irq instead of chained handler platform-drivers: x86: pmic: Use irq_chip buslock mechanism platform-drivers: x86: Convert pmic to new irq_chip functions platform-drivers: x86: pmic: Fix up bogus irq hackery
2011-02-21Merge branch 'rc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: fixdep: Do not record dependency on the source file itself
2011-02-21Docbook: add fs/eventfd.c and fix typos in itRandy Dunlap
Add fs/eventfd.c to filesystems docbook. Make typo corrections in fs/eventfd.c. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-21Documentation: log_buf_len uses [KMG] suffixRandy Dunlap
Update the "log_buf_len" description to use [KMG] syntax for the buffer size. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-21Documentation: explain [KMG] parameter suffixAhmed S. Darwish
The '[KMG]' suffix is commonly described after a number of kernel parameter values documentation. Explicitly state its semantics. Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-21Documentation: complete crashkernel= parameter documentationAhmed S. Darwish
Complete the crashkernel= kernel parameter documentation. Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: Simon Horman <horms@verge.net.au> Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: keep reference to parent inode on ceph_dentry ceph: queue cap_snaps once per realm libceph: fix socket write error handling libceph: fix socket read error handling
2011-02-21Merge branch 's5p-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S5PV210: Fix regulator names ARM: S5PV210: Update max8998_platform_data ARM: SAMSUNG: Drop exporting s3c24xx_ts_set_platdata ARM: S5P: Fix end address in memory resource information for UART devices ARM: S5P64X0: Cleanup map.h file ARM: S5P6442: Cleanup map.h file ARM: S5PC100: Clenaup map.h file ARM: S5PV210: Cleanup map.h file ARM: S5PV310: Cleanup map.h file
2011-02-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] update cifs version cifs: Fix regression in LANMAN (LM) auth code cifs: fix handling of scopeid in cifs_convert_address
2011-02-21Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6745/1: kprobes insn decoding fix ARM: tlb: move noMMU tlb_flush() to asm/tlb.h ARM: tlb: delay page freeing for SMP and ARMv7 CPUs ARM: Keep exit text/data around for SMP_ON_UP ARM: Ensure predictable endian state on signal handler entry ARM: 6740/1: Place correctly notes section in the linker script ARM: 6700/1: SPEAr: Correct SOC config base address for spear320 ARM: 6722/1: SPEAr: sp810: switch to slow mode before reset ARM: 6712/1: SPEAr: replace readl(), writel() with relaxed versions in uncompress.h ARM: 6720/1: SPEAr: Append UL to VMALLOC_END ARM: 6676/1: Correct the cpu_architecture() function for ARMv7 ARM: 6739/1: update .gitignore for boot/compressed ARM: 6743/1: errata: interrupted ICALLUIS may prevent completion of broadcasted operation ARM: 6742/1: pmu: avoid setting IRQ affinity on UP systems ARM: 6741/1: errata: pl310 cache sync operation may be faulty
2011-02-21Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] net: provide architecture specific NET_SKB_PAD [S390] atomic: use inline asm [S390] correct ipl parameter block safe guard [S390] atomic: use ACCESS_ONCE() for atomic_read() [S390] dasd: correct device table
2011-02-21[CIFS] update cifs versionSteve French
Update version to 1.71 so we can more easily spot modules with the last two fixes Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-02-21dell-laptop: Toggle the unsupported hardware killswitchKeng-Yu Lin
It is found on Dell Inspiron 1018 that the firmware reports that the hardware killswitch is not supported. This makes the rfkill key not functional. This patch forces the driver to toggle the firmware rfkill status in the case that the hardware killswitch is indicated as unsupported by the firmware. Signed-off-by: Keng-Yu Lin <keng-yu.lin@canonical.com> Tested-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-02-21thinkpad_acpi: Always report scancodes for hotkeysSeth Forshee
Some thinkpad hotkeys report key codes like KEY_FN_F8 when something like KEY_VOLUMEDOWN is desired. Always provide the scan codes in addition to the key codes to assist with debugging these issues. Also send the scan code before the key code to match what other drivers do, as some userspace utilities expect this ordering. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-02-21acer-wmi: Fix capitalisation of GUIDMatthew Garrett
6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3 needs to be 6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3 to match the hardware alias. Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Carlos Corbacho <carlos@strangeworlds.co.uk> Cc: stable@kernel.org
2011-02-21platform/x86: ideapad-laptop depends on INPUTRandy Dunlap
Most platform/x86 drivers that use INPUT_SPARSEKMAP also depend on INPUT, so do the same for ideapad-laptop. This fixes a kconfig warning and subsequent build errors when CONFIG_INPUT is disabled. warning: (ACER_WMI && ASUS_LAPTOP && DELL_WMI && HP_WMI && PANASONIC_LAPTOP && IDEAPAD_LAPTOP && EEEPC_LAPTOP && EEEPC_WMI && MSI_WMI && TOPSTAR_LAPTOP && ACPI_TOSHIBA) selects INPUT_SPARSEKMAP which has unmet direct dependencies (!S390 && INPUT) ERROR: "input_free_device" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "input_register_device" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "sparse_keymap_setup" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "input_allocate_device" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "input_unregister_device" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "sparse_keymap_free" [drivers/platform/x86/ideapad-laptop.ko] undefined! ERROR: "sparse_keymap_report_event" [drivers/platform/x86/ideapad-laptop.ko] undefined! Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Matthew Garrett <mjg@redhat.com> Cc: platform-driver-x86@vger.kernel.org Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-02-21platform: x86: acer-wmi: world-writable sysfs threeg fileVasiliy Kulikov
Don't allow everybody to write to hardware registers. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-02-21platform: x86: asus_acpi: world-writable procfs filesVasiliy Kulikov
Don't allow everybody to change ACPI settings. The comment says that it is done deliberatelly, however, the comment before disp_proc_write() says that at least one of these setting is experimental. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-02-21platform: x86: tc1100-wmi: world-writable sysfs wireless and jogdial filesVasiliy Kulikov
Don't allow everybody to change WMI settings. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
2011-02-21platform-drivers: x86: pmic: Use request_irq instead of chained handlerThomas Gleixner
There is no need to install a chained handler for this hardware. This is a plain x86 IOAPIC interrupt which is handled by the core code perfectly fine. There is nothing special about demultiplexing these gpio interrupts which justifies a custom hack. Replace it by a plain old interrupt handler installed with request_irq. That makes the code agnostic about the underlying primary interrupt hardware. The overhead for this is minimal, but it gives us the advantage of accounting, balancing and to detect interrupt storms. gpio interrupts are not really that performance critical. Patch fixups from akpm Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2011-02-21cifs: Fix regression in LANMAN (LM) auth codeShirish Pargaonkar
LANMAN response length was changed to 16 bytes instead of 24 bytes. Revert it back to 24 bytes. Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> CC: stable@kernel.org Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-02-21eCryptfs: Copy up lower inode attrs in getattrTyler Hicks
The lower filesystem may do some type of inode revalidation during a getattr call. eCryptfs should take advantage of that by copying the lower inode attributes to the eCryptfs inode after a call to vfs_getattr() on the lower inode. I originally wrote this fix while working on eCryptfs on nfsv3 support, but discovered it also fixed an eCryptfs on ext4 nanosecond timestamp bug that was reported. https://bugs.launchpad.net/bugs/613873 Cc: <stable@kernel.org> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-02-21ecryptfs: read on a directory should return EISDIR if not supportedAndy Whitcroft
read() calls against a file descriptor connected to a directory are incorrectly returning EINVAL rather than EISDIR: [EISDIR] [XSI] [Option Start] The fildes argument refers to a directory and the implementation does not allow the directory to be read using read() or pread(). The readdir() function should be used instead. [Option End] This occurs because we do not have a .read operation defined for ecryptfs directories. Connect this up to generic_read_dir(). BugLink: http://bugs.launchpad.net/bugs/719691 Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-02-21eCryptfs: Handle NULL nameidata pointersTyler Hicks
Allow for NULL nameidata pointers in eCryptfs create, lookup, and d_revalidate functions. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2011-02-21ARM: 6745/1: kprobes insn decoding fixNicolas Pitre
Marcin Slusarz says: > In arch/arm/kernel/kprobes-decode.c there's a function > arm_kprobe_decode_insn which does: > > } else if ((insn & 0x0e000000) == 0x0c400000) { > ... > > This is always false, so code below is dead. > I found this bug by coccinelle (http://coccinelle.lip6.fr/). Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: tlb: move noMMU tlb_flush() to asm/tlb.hRussell King
There's no need to noMMU to put tlb_flush() in asm/tlbflush.h - it's part of the tlb shootdown interface. Move it to asm/tlb.h instead, as per x86. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: tlb: delay page freeing for SMP and ARMv7 CPUsRussell King
We need to delay freeing any mapped page on SMP and ARMv7 systems to ensure that the data is not accessed by other CPUs, or is used for speculative prefetch with ARMv7. This includes not only mapped pages but also pages used for the page tables themselves. This avoids races with the MMU/other CPUs accessing pages after they've been freed but before we've invalidated the TLB. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: Keep exit text/data around for SMP_ON_UPRussell King
When SMP_ON_UP is used and the spinlocks are inlined, we end up with inline spinlocks in the exit code, with references from the SMP alternatives section to the exit sections. This causes link time errors. Avoid this by placing the exit sections in the init-discarded region. Cc: <stable@kernel.org> Tested-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: Ensure predictable endian state on signal handler entryRussell King
Ensure a predictable endian state when entering signal handlers. This avoids programs which use SETEND to momentarily switch their endian state from having their signal handlers entered with an unpredictable endian state. Cc: <stable@kernel.org> Acked-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: 6740/1: Place correctly notes section in the linker scriptPawel Moll
Commit 18991197b4b588255ccabf472ebc84db7b66a19c added --build-id linker option when toolchain supports it. ARM one does, but for some reason places the section at 0 when linker script doesn't mention it explicitly. The 1e621a8e3752367d4aae78a8ab00a18fb2793f34 worked around the problem removing this section from binary image with explicit objcopy options, but it still exists in vmlinux, confusing tools like debuggers and perf. This problem was discussed here: http://lists.infradead.org/pipermail/linux-arm-kernel/2010-May/015994.html http://lists.infradead.org/pipermail/linux-arm-kernel/2010-May/015994.html but the proposed changes to the linker script were substantial. This patch simply places NOTES (36 bytes long, at least when compiled with CodeSourcery toolchain) between data and bss, which seem to be the right place (and suggested by the sample linker script in include/asm-generic/vmlinux.lds.h). It is enough to place it correctly in vmlinux (so debuggers are happy): Section Headers: [11] .data PROGBITS c07ce000 7ce000 020fc0 00 WA 0 0 32 [12] .notes NOTE c07eefc0 7eefc0 000024 00 AX 0 0 4 [13] .bss NOBITS c07ef000 7eefe4 01e628 00 WA 0 0 32 Program Headers: LOAD 0x008000 0xc0008000 0xc0008000 0x7e6fe4 0x805628 RWE 0x8000 NOTE 0x7eefc0 0xc07eefc0 0xc07eefc0 0x00024 0x00024 R E 0x4 Section to Segment mapping: Segment Sections... 00 <...> .data .notes .bss 01 .notes and to get it exposed as /sys/kernel/notes used by perf tools. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: 6700/1: SPEAr: Correct SOC config base address for spear320viresh kumar
SPEAR320_SOC_CONFIG_BASE was wrong, causing the wrong registers to be accessed. Reviewed-by: Stanley Miao <stanley.miao@windriver.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: 6722/1: SPEAr: sp810: switch to slow mode before resetShiraz Hashim
In sysctl_soft_reset(), switch to slow mode before resetting the system via the system controller. This is required. Reviewed-by: Stanley Miao <stanley.miao@windriver.com> Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: 6712/1: SPEAr: replace readl(), writel() with relaxed versions in ↵viresh kumar
uncompress.h readl() and writel() calls the outer cache maintainance operations which are not available during Linux uncompression. This patch replaces readl() and writel() with readl_relaxed() and writel_relaxed() to avoid the link time errors. Reviewed-by: Stanley Miao <stanley.miao@windriver.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21ARM: 6720/1: SPEAr: Append UL to VMALLOC_ENDviresh kumar
This patch fixes following warning: arch/arm/mm/init.c:606: warning: format '%08lx' expects type 'long unsigned int', but argument 12 has type 'unsigned int' by appending UL to VMALLOC_END's Number. Reviewed-by: Stanley Miao <stanley.miao@windriver.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-21fixdep: Do not record dependency on the source file itselfMichal Marek
The dependency is already expressed by the Makefiles, storing it in the .cmd file breaks build if a .c file is replaced by .S or vice versa, because the .cmd file contains foo/bar.o: foo/bar.c ... foo/bar.c ... : so the foo/bar.c -> foo/bar.o rule triggers even if there is no foo/bar.c anymore. Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-02-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: HDA: Do not announce false surround in Conexant auto ALSA: HDA: Conexant auto: Handle multiple connections to ADC node ALSA: HDA: Add position_fix quirk for an Asus device ALSA: caiaq - Fix possible string-buffer overflow ALSA: au88x0 - Modify pointer callback to give accurate playback position
2011-02-20Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: hwmon: (lm85) extend to support EMC6D103 chips MAINTAINERS: Remove stale hwmon quilt tree hwmon: (k10temp) add support for AMD Family 12h/14h CPUs hwmon: (jc42) do not allow writing to locked registers hwmon: (jc42) more helpful documentation hwmon: (jc42) fix type mismatch
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