15 Dec, 2011
1 commit
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The "(insn & 0x01800000) != 0x01800000" test matches 'restore'
but that is a legitimate place to see the %lo() part of a 32-bit
symbol relocation, particularly in tail calls.Signed-off-by: David S. Miller
Tested-by: Sergei Trofimovich
05 Dec, 2011
1 commit
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The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.Signed-off-by: Thomas Meyer
Signed-off-by: David S. Miller
04 Dec, 2011
1 commit
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The idea behind commit d91ee5863b71 ("cpuidle: replace xen access to x86
pm_idle and default_idle") was to have one call - disable_cpuidle()
which would make pm_idle not be molested by other code. It disallows
cpuidle_idle_call to be set to pm_idle (which is excellent).But in the select_idle_routine() and idle_setup(), the pm_idle can still
be set to either: amd_e400_idle, mwait_idle or default_idle. This
depends on some CPU flags (MWAIT) and in AMD case on the type of CPU.In case of mwait_idle we can hit some instances where the hypervisor
(Amazon EC2 specifically) sets the MWAIT and we get:Brought up 2 CPUs
invalid opcode: 0000 [#1] SMPPid: 0, comm: swapper Not tainted 3.1.0-0.rc6.git0.3.fc16.x86_64 #1
RIP: e030:[] [] mwait_idle+0x6f/0xb4
...
Call Trace:
[] cpu_idle+0xae/0xe8
[] cpu_bringup_and_idle+0xe/0x10
RIP [] mwait_idle+0x6f/0xb4
RSPIn the case of amd_e400_idle we don't get so spectacular crashes, but we
do end up making an MSR which is trapped in the hypervisor, and then
follow it up with a yield hypercall. Meaning we end up going to
hypervisor twice instead of just once.The previous behavior before v3.0 was that pm_idle was set to
default_idle regardless of select_idle_routine/idle_setup.We want to do that, but only for one specific case: Xen. This patch
does that.Fixes RH BZ #739499 and Ubuntu #881076
Reported-by: Stefan Bader
Signed-off-by: Konrad Rzeszutek Wilk
Signed-off-by: Linus Torvalds
02 Dec, 2011
1 commit
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* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: 7182/1: ARM cpu topology: fix warning
ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
ARM: 7176/1: cpu_pm: register GIC PM notifier only once
ARM: 7175/1: add subname parameter to mfp_set_groupg callers
ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations
ARM: 7171/1: unwind: add unwind directives to bitops assembly macros
ARM: 7170/2: fix compilation breakage in entry-armv.S
ARM: 7168/1: use cache type functions for arch_get_unmapped_area
ARM: perf: check that we have a platform device when reserving PMU
ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c
ARM: 7165/2: PL330: Fix typo in _prepare_ccr()
ARM: 7163/2: PL330: Only register usable channels
ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds
ARM: 7161/1: errata: no automatic store buffer drain
ARM: perf: initialise used_mask for fake PMU during validation
ARM: PMU: remove pmu_init declaration
ARM: PMU: re-export release_pmu symbol to modules
01 Dec, 2011
4 commits
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* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
ARM: ux500: update defconfig
ARM: u300: update defconfig
ARM: at91: enable additional boards in existing soc defconfig files
ARM: at91: refresh soc defconfig files for 3.2
ARM: at91: rename defconfig files appropriately
ARM: OMAP2+: Fix Compilation error when omap_l3_noc built as module
ARM: OMAP2+: Remove empty io.h
ARM: OMAP2: select ARM_AMBA if OMAP3_EMU is defined
ARM: OMAP: smartreflex: fix IRQ handling bug
ARM: OMAP: PM: only register TWL with voltage layer when device is present
ARM: OMAP: hwmod: Fix the addr space, irq, dma count APIs
arm: mx28: fix bit operation in clock setting
ARM: imx: export imx_ioremap
ARM: imx/mm-imx3: conditionally compile i.MX31 and i.MX35 code
ARM: mx5: Fix checkpatch warnings in cpu-imx5.c
MAINTAINERS: Add missing directory
ARM: imx: drop 'ARCH_MX31' and 'ARCH_MX35'
ARM: imx6q: move clock register map to machine_desc.map_io
ARM: pxa168/gplugd: add the correct SSP device
ARM: Update mach-types to fix mxs build breakage
... -
kernel/sched.c:7354:2: warning: initialization from incompatible pointer type
Align cpu_coregroup_mask prototype interface with sched_domain_mask_f typedef
use int cpu instead of unsigned int cpuCc:
Signed-off-by: Vincent Guittot
Signed-off-by: Russell King -
The SWP instruction is deprecated on ARMv6 and with ARMv7 it will be
UNDEFINED when CONFIG_SWP_EMULATE is selected. In this case, probing a
SWP instruction will cause an oops when the kprobes emulation code
executes an undefined instruction.As the SWP instruction should be rare or non-existent in kernels for
ARMv6 and later, we can simply avoid these problems by not allowing
probing of these.Reported-by: Leif Lindholm
Tested-by: Leif Lindholm
Acked-by: Nicolas Pitre
Signed-off-by: Jon Medhurst
Signed-off-by: Russell King -
There is a kprobes testcase for the instruction "strd r2, [r3], r4".
This has unpredictable behaviour as it uses r3 for register writeback
addressing and also stores it to memory.On a cortex A9, this testcase would fail because the instruction writes
the updated value of r3 to memory, whereas the kprobes emulation code
writes the original value.Fix this by changing testcase to used r5 instead of r3.
Reported-by: Leif Lindholm
Tested-by: Leif Lindholm
Acked-by: Nicolas Pitre
Signed-off-by: Jon Medhurst
Signed-off-by: Russell King
29 Nov, 2011
3 commits
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This updates the Ux500 defconfig with the new drivers for HWSEM
and AB5500 core that were merged in the 3.2 cycle.Signed-off-by: Linus Walleij
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This updates the U300 defconfig to support some new drivers like
FSMC, sets it to use the MMC clock gating scheme, and removes
some stale config options.Signed-off-by: Linus Walleij
27 Nov, 2011
7 commits
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Commit 4294f8baa ("ARM: gic: add irq_domain support") defines irq_start
as irq_start = (irq_start & ~31) + 16; On a platform with a GIC and a
CPU without PPIs, this results in irq_start being off by 16.This patch fixes gic_init so that we only carve out a PPI space when
PPIs exist for the GIC being initialised.Cc: Rob Herring
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
When multiple GICs exist on a platform (RealView PB1176/11MP),
we must make sure the PM notifier block is only registered
once, otherwise we end up corrupting the PM notifier list.The fix is to only register the notifier when initializing
the first GIC, as the power management functions seem
to iterate over all the registered GICs.Tested on PB11MP and PB1176.
Reported-by: Will Deacon
Tested-by: Will Deacon
Cc: Colin Cross
Signed-off-by: Marc Zyngier
Signed-off-by: Russell King -
When compiling kprobes-test-thumb.c an error like below may occur:
/tmp/ccKcuJcG.s:19179: Error: offset out of range
This is caused by the compiler underestimating the size of the inline
assembler instructions containing ".space 0x1000" and failing to spill
the literal pool in time to prevent the generation of PC relative load
instruction with invalid offsets.The fix implemented by this patch is to replace a single large .space
directive by a number of 4 byte .space's. This requires splitting the
macros which generate test cases for branch instructions into two forms:
one with, and one without support for inserting extra code between
branch and target.Acked-by: Nicolas Pitre
Signed-off-by: Jon Medhurst
Signed-off-by: Russell King -
dma_alloc_coherent wants to split pages after allocation in order to
reduce the memory footprint. This does not work well with GFP_COMP
pages, so drop this flag before allocation.This patch is ported from arch/avr32
(commit 3611553ef985ef7c5863c8a94641738addd04cff).[swarren: s/HUGETLB_PAGE/HUGETLBFS/ in comment, minor comment cleanup]
Signed-off-by: Sumit Bhattacharya
Tested-by: Varun Colbert
Signed-off-by: Stephen Warren
Signed-off-by: Russell King -
The bitops functions (e.g. _test_and_set_bit) on ARM do not have unwind
annotations and therefore the kernel cannot backtrace out of them on a
fatal error (for example, NULL pointer dereference).This patch annotates the bitops assembly macros with UNWIND annotations
so that we can produce a meaningful backtrace on error. Callers of the
macros are modified to pass their function name as a macro parameter,
enforcing that the macros are used as standalone function implementations.Acked-by: Dave Martin
Signed-off-by: Will Deacon
Signed-off-by: Russell King -
Fix compilation failure, when Thumb support is not enabled:
arch/arm/kernel/entry-armv.S: Assembler messages:
arch/arm/kernel/entry-armv.S:501: Error: backward ref to unknown label "2:"
arch/arm/kernel/entry-armv.S:502: Error: backward ref to unknown label "3:"
make[2]: *** [arch/arm/kernel/entry-armv.o] Error 1Signed-off-by: Guennadi Liakhovetski
Reviewed-by: Dave Martin
Signed-off-by: Russell King -
There are already cache type decoding functions, so use those instead
of custom decode code which only works for ARMv6.Signed-off-by: Rob Herring
Acked-by: Nicolas Pitre
Acked-by: Will Deacon
Signed-off-by: Russell King
25 Nov, 2011
2 commits
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Signed-off-by: Tony Breeds
Acked-by: Josh Boyer
Signed-off-by: Benjamin Herrenschmidt -
arch/powerpc/mm/hugetlbpage.c: In function 'reserve_hugetlb_gpages':
arch/powerpc/mm/hugetlbpage.c:312:2: error: implicit declaration of function 'parse_args'Signed-off-by: Kumar Gala
Signed-off-by: Benjamin Herrenschmidt
24 Nov, 2011
20 commits
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…/linux-omap into fixes
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD
Cc: Nicolas Ferre
Signed-off-by: Arnd Bergmann -
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD
Cc: Nicolas Ferre
Signed-off-by: Arnd Bergmann -
rename all Atmel reference board as soc defconfig
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD
Cc: Nicolas Ferre
Signed-off-by: Arnd Bergmann -
At this point, ehv_pic has been allocated but not stored anywhere, so it
should be freed before leaving the function.A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)//
@exists@
local idexpression x;
statement S,S1;
expression E;
identifier fl;
expression *ptr != NULL;
@@x = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
}
when any
when != true x == NULL
x->fl
...>
(
if (x == NULL) S1
|
if (...) { ... when != x
when forall
(
return \(0\|\|ptr\);
|
* return ...;
)
}
)
//Signed-off-by: Julia Lawall
Acked-by: Timur Tabi
Signed-off-by: Kumar Gala -
If Freescale LBC driver fails to initialise itself from device tree, then
internal structure is freed only but not NULL-fied. As result functions
fsl_lbc_find() after checking the structure is not NULL are trying to
access device registers.Signed-off-by: Alexandre Rusev
Signed-off-by: Kumar Gala -
QE_General4 should only round up the divisor iff divisor is > 3.
Rounding up lower divisors makes the error too big, causing USB
on MPC832x to fail.Signed-off-by: Joakim Tjernlund
Acked-by: Timur Tabi
Signed-off-by: Kumar Gala -
arch/powerpc/platforms/85xx/p3060_qds.c: In function '__machine_initcall_p3060_qds_declare_of_platform_devices':
arch/powerpc/platforms/85xx/p3060_qds.c:73:1: error: implicit declaration of function 'declare_of_platform_devices'declare_of_platform_devices should have been corenet_ds_publish_devices.
Signed-off-by: Kumar Gala
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The driver for the Freescale P3060 QDS got added by commit 96cc017c5b
("[...] Add support for P3060QDS board"). Its Kconfig entry selects
MPC8xxx_GPIO. But at the time that driver got added MPC8xxx_GPIO was
already renamed to GPIO_MPC8XXX, by commit c68308dd50c ("gpio: move
mpc8xxx/512x gpio driver to drivers/gpio").So make this driver select GPIO_MPC8XXX.
Signed-off-by: Paul Bolle
Acked-by: Wolfram Sang
Signed-off-by: Kumar Gala -
P1023 external IRQ[4:6, 11] are not pin out, but the interrupts are
utilized by the PCIe controllers. As they are not exposed as pins we
need to set them as active-high (internal to the SoC these interrupts
are pulled down).IRQs[0:3,7:10] are pulled up on the board so we have them set as
active-low.Signed-off-by: Roy Zang
Signed-off-by: Kumar Gala -
Fix below compilation failure on mainline kernel 3.2-rc1
when omap_l3_noc.c is built as module.arch/arm/mach-omap2/omap_l3_noc.c:240: error: expected ',' or ';' before 'MODULE_DEVICE_TABLE'
Signed-off-by: Govindraj.R
Acked-by: Santosh Shilimkar
Signed-off-by: Tony Lindgren -
The file arch/arm/mach-omap2/io.h is empty, so we can remove it.
Signed-off-by: Thomas Weber
Acked-by: Kevin Hilman
Signed-off-by: Tony Lindgren -
This patch selects ARM_AMBA if OMAP3_EMU is defined because
OC_ETM depends on ARM_AMBA, so fix the link failure[1].[1],
arch/arm/kernel/built-in.o: In function `etm_remove':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:609: undefined
reference to `amba_release_regions'
arch/arm/kernel/built-in.o: In function `etb_remove':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:409: undefined
reference to `amba_release_regions'
arch/arm/kernel/built-in.o: In function `etm_init':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:640: undefined
reference to `amba_driver_register'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:646: undefined
reference to `amba_driver_register'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:648: undefined
reference to `amba_driver_unregister'
arch/arm/kernel/built-in.o: In function `etm_probe':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:545: undefined
reference to `amba_request_regions'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:595: undefined
reference to `amba_release_regions'
arch/arm/kernel/built-in.o: In function `etb_probe':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:347: undefined
reference to `amba_request_regions'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:392: undefined
reference to `amba_release_regions'
arch/arm/mach-omap2/built-in.o: In function `emu_init':
/home/tom/git/omap/linux-2.6-omap/arch/arm/mach-omap2/emu.c:62:
undefined reference to `amba_device_register'
/home/tom/git/omap/linux-2.6-omap/arch/arm/mach-omap2/emu.c:63:
undefined reference to `amba_device_register'
make: *** [.tmp_vmlinux1] Error 1
making modulesSigned-off-by: Ming Lei
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren -
Fix a bug which has been on this driver since
it was added by the original commit 984aa6db
which would never clear IRQSTATUS bits.Signed-off-by: Felipe Balbi
Signed-off-by: Kevin Hilman
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren -
Current code registers voltage layer details for TWL PMIC even when a TWL
has not been registered. Fix this to only register the TWL with voltage
layer when the TWL PMIC is initialized by board-level code.Signed-off-by: Kevin Hilman
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren -
The address spaces, irqs and dma reqs count APIs return the
number of corresponding entries in a hwmod including a additional
null value or a -1 terminator in the structure introduced recently.
More information here:- 212738a4: omap_hwmod: use a terminator record with omap_hwmod_mpu_irqs
arrays- 78183f3f: omap_hwmod: use a null structure record to terminate
omap_hwmod_addr_space arrays- bc614958: omap_hwmod: use a terminator record with omap_hwmod_dma_info
arraysThe issue with irqs and dma info was originally reported by Benoit Cousson.
The devices which have multiple hwmods and use device_build_ss are
broken with this, as their resources are populated with a extra null
value, subsequently the probe fails. So fix the API not to include
the array terminator in the count.Reported-by: Benoit Cousson
Signed-off-by: Santosh Shilimkar
Signed-off-by: sricharan
Signed-off-by: Benoit Cousson
Cc: Paul Walmsley
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren
