Re: [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor

2015-03-13 Thread Andy Lutomirski
On Fri, Mar 13, 2015 at 2:45 PM, wrote: > On Fri, Mar 13, 2015 at 02:33:44PM -0700, Andy Lutomirski wrote: >> On Fri, Mar 13, 2015 at 12:42 PM, Josh Triplett >> wrote: >> > On Fri, Mar 13, 2015 at 04:05:29PM +, David Drysdale wrote: >> >> On Fri, Mar 13, 2015 at 1:40 AM, Josh Triplett >>

Re: [PATCH] parisc: fix pmd accounting with 3-level page tables

2015-03-13 Thread Graham Gower
This fixes the problem on my C8000. Tested-by: graham.go...@gmail.com On 13 March 2015 at 21:00, Kirill A. Shutemov wrote: > There's hack in pgd_alloc() on parisc to initialize one pmd, which is > not accounted. It leads to underflow on exit. > > Let's adjust nr_pmds on pgd_alloc() to get

Re: [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor

2015-03-13 Thread josh
On Fri, Mar 13, 2015 at 02:33:44PM -0700, Andy Lutomirski wrote: > On Fri, Mar 13, 2015 at 12:42 PM, Josh Triplett wrote: > > On Fri, Mar 13, 2015 at 04:05:29PM +, David Drysdale wrote: > >> On Fri, Mar 13, 2015 at 1:40 AM, Josh Triplett > >> wrote: > >> > This patch series introduces a new

Re: [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor

2015-03-13 Thread josh
On Fri, Mar 13, 2015 at 02:16:07PM -0700, Thiago Macieira wrote: > On Friday 13 March 2015 12:42:52 Josh Triplett wrote: > > > Hi Josh, > > > > > > From the overall description (i.e. I haven't looked at the code yet) > > > this looks very interesting. However, it seems to cover a lot of the > >

[PATCH 03/12] PCI: Lock down register access when trusted_kernel is true

2015-03-13 Thread Matthew Garrett
Any hardware that can potentially generate DMA has to be locked down from userspace in order to avoid it being possible for an attacker to modify kernel code. This should be prevented if trusted_kernel has been set, so this patch disables userspace access to PCI regions and config access. In

[PATCH 09/12] uswsusp: Disable when trusted_kernel is true

2015-03-13 Thread Matthew Garrett
uswsusp allows a user process to dump and then restore kernel state, which makes it possible to modify the running kernel. Disable this if trusted_kernel is true. Signed-off-by: Matthew Garrett --- kernel/power/user.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git

[PATCH 07/12] acpi: Ignore acpi_rsdp kernel parameter when trusted_kernel is true.

2015-03-13 Thread Matthew Garrett
From: Josh Boyer This option allows userspace to pass the RSDP address to the kernel, which makes it possible for a user to execute arbitrary code in the kernel. Disable this when trusted_kernel is true. Signed-off-by: Josh Boyer --- drivers/acpi/osl.c | 3 ++- 1 file changed, 2

[PATCH 06/12] acpi: Limit access to custom_method if trusted_kernel is true

2015-03-13 Thread Matthew Garrett
custom_method effectively allows arbitrary access to system memory, making it possible for an attacker to modify the kernel at runtime. Prevent this if trusted_kernel is true. Signed-off-by: Matthew Garrett --- drivers/acpi/custom_method.c | 4 1 file changed, 4 insertions(+) diff --git

[PATCH 08/12] kexec: Disable loading of unverified images

2015-03-13 Thread Matthew Garrett
kexec permits the loading and execution of arbitrary code in ring 0, which permits the modification of the running kernel. Restrict it such that only images which have been verified may be loaded when trusted_kernel is true. Signed-off-by: Matthew Garrett --- kernel/kexec.c | 18

[PATCH 05/12] Restrict /dev/mem and /dev/kmem when trusted_kernel is true

2015-03-13 Thread Matthew Garrett
Allowing users to write to address space provides mechanisms that may permit modification of the kernel at runtime. Prevent this if trusted_kernel is true. Signed-off-by: Matthew Garrett --- drivers/char/mem.c | 6 ++ 1 file changed, 6 insertions(+) diff --git a/drivers/char/mem.c

Re: [GIT PULL] cpuidle: 4.0-rc3 fixes

2015-03-13 Thread Daniel Lezcano
On 03/13/2015 10:56 PM, Rafael J. Wysocki wrote: On Friday, March 13, 2015 06:42:30 PM Daniel Lezcano wrote: Hi Rafael, this pull request contains a couple of fixes: - Fix the cpu_pm_enter/exit symmetry in the mvebu driver (Gregory Clement) - Fix the mvebu drivers latency/residency

[PATCH 02/12] Enforce module signatures when trusted kernel is enabled

2015-03-13 Thread Matthew Garrett
If trusted_kernel is true, require that all modules have valid signatures. Signed-off-by: Matthew Garrett --- include/linux/module.h| 6 ++ kernel/module.c | 6 ++ security/trusted_kernel.c | 6 +- 3 files changed, 17 insertions(+), 1 deletion(-) diff --git

[PATCH 01/12] Add support for indicating that the booted kernel is externally trusted

2015-03-13 Thread Matthew Garrett
Provide a boolean runtime configuration option for restricting userspace's ability to modify the running kernel. This can be used when some external validation of the kernel's state has been performed. Signed-off-by: Matthew Garrett --- Documentation/kernel-parameters.txt | 6 ++

Trusted kernel patchset

2015-03-13 Thread Matthew Garrett
This is a slightly cleaned up version of the patchset posted last year (https://lkml.org/lkml/2014/2/26/554). I've made a couple of minor changes based on feedback, but otherwise this is pretty much the same. Some things I *haven't* done: 1) Disabled CAP_SYS_RAWIO Disabling CAP_SYS_RAWIO has the

[PATCH 04/12] x86: Lock down IO port access when trusted_kernel is true

2015-03-13 Thread Matthew Garrett
IO port access would permit users to gain access to PCI configuration registers, which in turn (on a lot of hardware) give access to MMIO register space. This would potentially permit root to trigger arbitrary DMA, so lock it down when trusted_kernel is true Signed-off-by: Matthew Garrett ---

[PATCH 12/12] crypto/sha-mb/sha1_mb.c : Syntax error

2015-03-13 Thread Ameen Ali
fixing a syntax-error . Signed-off-by : Ameen Ali --- arch/x86/crypto/sha-mb/sha1_mb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c b/arch/x86/crypto/sha-mb/sha1_mb.c index fd9f6b0..ec0b989 100644 --- a/arch/x86/crypto/sha-mb/sha1_mb.c +++

Re: [PATCH 7/8] fbdev: ssd1307fb: Add sysfs handles to expose contrast and dim setting to userspace.

2015-03-13 Thread Thomas Niederprüm
Am Tue, 10 Mar 2015 12:49:19 +0200 schrieb Tomi Valkeinen : > On 09/02/15 10:52, Maxime Ripard wrote: > > On Sat, Feb 07, 2015 at 05:42:44PM +0100, Thomas Niederprüm wrote: > +static struct device_attribute device_attrs[] = { > +__ATTR(contrast, S_IRUGO|S_IWUSR, show_contrast, >

[PATCH v3 4/5] mtrr, x86: Clean up mtrr_type_lookup()

2015-03-13 Thread Toshi Kani
MTRRs contain fixed and variable entries. mtrr_type_lookup() may repeatedly call __mtrr_type_lookup() to handle a request that overlaps with variable entries. However, __mtrr_type_lookup() also handles the fixed entries, which do not have to be repeated. Therefore, this patch creates separate

Re: [PATCH 5/8] fbdev: ssd1307fb: Add module parameter bitsperpixel.

2015-03-13 Thread Thomas Niederprüm
Am Tue, 10 Mar 2015 12:45:49 +0200 schrieb Tomi Valkeinen : > On 14/02/15 17:54, Maxime Ripard wrote: > > On Sat, Feb 07, 2015 at 05:05:03PM +0100, Thomas Niederprüm wrote: > >> Am Sat, 7 Feb 2015 12:20:43 +0100 > >> schrieb Maxime Ripard : > >> > >>> On Fri, Feb 06, 2015 at 11:28:11PM +0100,

Re: [PATCH] audit: Remove condition which always evaluates to false

2015-03-13 Thread Paul Moore
On Wed, Mar 11, 2015 at 2:08 PM, Pranith Kumar wrote: > After commit 3e1d0bb6224f019893d1c498cc3327559d183674 ("audit: Convert int > limit > uses to u32"), by converting an int to u32, few conditions will always > evaluate > to false. > > These warnings were emitted during compilation: > >

Re: [PATCH 4/8] fbdev: ssd1307fb: Use vmalloc to allocate video memory.

2015-03-13 Thread Thomas Niederprüm
Am Tue, 10 Mar 2015 13:28:25 +0200 schrieb Tomi Valkeinen : > On 14/02/15 16:22, Thomas Niederprüm wrote: > > Am Thu, 12 Feb 2015 16:11:21 +0100 > > schrieb Maxime Ripard : > > > >> On Sat, Feb 07, 2015 at 04:35:41PM +0100, Thomas Niederprüm wrote: > >>> Am Sat, 7 Feb 2015 12:18:21 +0100 > >>>

[PATCH v3 1/5] mm, x86: Document return values of mapping funcs

2015-03-13 Thread Toshi Kani
Document the return values of KVA mapping functions, pud_set_huge(), pmd_set_huge, pud_clear_huge() and pmd_clear_huge(). Simplify the conditions to select HAVE_ARCH_HUGE_VMAP in the Kconfig, since X86_PAE depends on X86_32. There is no functional change in this patch. Signed-off-by: Toshi Kani

Re: [PATCH 6/6] clone4: Introduce new CLONE_FD flag to get task exit notification via fd

2015-03-13 Thread Andy Lutomirski
On Fri, Mar 13, 2015 at 12:57 PM, wrote: > On Fri, Mar 13, 2015 at 05:21:13PM +0100, Oleg Nesterov wrote: >> Josh, >> >> I'll certainly try to read this series, but not before next week. > > Thanks for looking at it. > >> but a couple of nits right now. >> >> On 03/12, Josh Triplett wrote: >> >

[PATCH v3 2/5] mtrr, x86: Fix MTRR lookup to handle inclusive entry

2015-03-13 Thread Toshi Kani
When an MTRR entry is inclusive to a requested range, i.e. the start and end of the request are not within the MTRR entry range but the range contains the MTRR entry entirely, __mtrr_type_lookup() ignores such a case because both start_state and end_state are set to zero. This patch fixes the

[PATCH v3 5/5] mtrr, mm, x86: Enhance MTRR checks for KVA huge page mapping

2015-03-13 Thread Toshi Kani
This patch adds an additional argument, 'uniform', to mtrr_type_lookup(), which returns 1 when a given range is covered uniformly by MTRRs, i.e. the range is fully covered by a single MTRR entry or the default type. pud_set_huge() and pmd_set_huge() are changed to check the new 'uniform' flag to

[PATCH v3 3/5] mtrr, x86: Fix MTRR state checks in mtrr_type_lookup()

2015-03-13 Thread Toshi Kani
'mtrr_state.enabled' contains FE (fixed MTRRs enabled) and E (MTRRs enabled) flags in MSR_MTRRdefType. Intel SDM, section 11.11.2.1, defines these flags as follows: - All MTRRs are disabled when the E flag is clear. The FE flag has no affect when the E flag is clear. - The default type is

Re: [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor

2015-03-13 Thread Andy Lutomirski
On Fri, Mar 13, 2015 at 12:42 PM, Josh Triplett wrote: > On Fri, Mar 13, 2015 at 04:05:29PM +, David Drysdale wrote: >> On Fri, Mar 13, 2015 at 1:40 AM, Josh Triplett wrote: >> > This patch series introduces a new clone flag, CLONE_FD, which lets the >> > caller >> > handle child process

[PATCH v3 0/5] mtrr, mm, x86: Enhance MTRR checks for huge I/O mapping

2015-03-13 Thread Toshi Kani
This patchset enhances MTRR checks for the kernel huge I/O mapping, which was enabled by the patchset below: https://lkml.org/lkml/2015/3/3/589 The following functional changes are made in patch 5/5. - Allow pud_set_huge() and pmd_set_huge() to create a huge page mapping to a range covered

Re: [PATCH 12/12] crypto/sha-mb/sha1_mb.c : Syntax error

2015-03-13 Thread Tim Chen
On Fri, 2015-03-13 at 23:13 +0200, Ameen Ali wrote: > fixing a syntax-error . > > Signed-off-by : Ameen Ali > --- > arch/x86/crypto/sha-mb/sha1_mb.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c > b/arch/x86/crypto/sha-mb/sha1_mb.c >

Re: [GIT PULL] cpuidle: 4.0-rc3 fixes

2015-03-13 Thread Rafael J. Wysocki
On Friday, March 13, 2015 06:42:30 PM Daniel Lezcano wrote: > > Hi Rafael, > > this pull request contains a couple of fixes: > > - Fix the cpu_pm_enter/exit symmetry in the mvebu driver (Gregory Clement) > > - Fix the mvebu drivers latency/residency values to reach an > acceptable

Re: [PATCH v4 4/9] selftests: Add install target

2015-03-13 Thread Shuah Khan
On 03/13/2015 11:20 AM, Shuah Khan wrote: > On 03/10/2015 10:06 PM, Michael Ellerman wrote: >> This adds make install support to selftests. The basic usage is: >> >> $ cd tools/testing/selftests >> $ make install >> >> That installs into tools/testing/selftests/install, which can then be >> copied

Re: [PATCH 0/6] ARM: cpuidle: Unify the ARM64/ARM DT approach

2015-03-13 Thread Daniel Lezcano
On 03/13/2015 09:51 PM, Rob Herring wrote: On Thu, Mar 12, 2015 at 9:25 AM, Daniel Lezcano wrote: Catalin, Rob, do you agree with this patchset ? There's very little to do with DT, but looks fine to me. Shall I consider as a acked-by for the entire patchset or only the DT part ? Thanks

Re: [PATCH 0/6] kbuild: mergeconfig: fix bugs, improve readability, and add generic entry point

2015-03-13 Thread Darren Hart
On 3/13/15, 1:27 AM, "Josh Triplett" wrote: >On Fri, Mar 13, 2015 at 03:21:37PM +0900, Masahiro Yamada wrote: >> >> This series is related to mergeconfig (scripts/kconfig/merge_config.sh): >> >> 1/6 and 2/6 fix bugs related to the parallel build. (-j option). >> 3/6 thru 5/6 are minor

Re: [PATCH] Lock 7 is cpuidle specific, use non-generic value for locking

2015-03-13 Thread Lina Iyer
On Fri, Mar 13 2015 at 14:02 -0600, Andy Gross wrote: On Thu, Mar 12, 2015 at 04:16:00PM -0600, Lina Iyer wrote: >It looks like the remote side unlocks it too? It doesn't seem like this >will work with the framework very well. The framework has a kernel >spinlock attached to the hwspinlock

Re: [PATCH 0/6] ARM: cpuidle: Unify the ARM64/ARM DT approach

2015-03-13 Thread Daniel Lezcano
On 03/13/2015 07:29 PM, Catalin Marinas wrote: On Thu, Mar 12, 2015 at 03:25:34PM +0100, Daniel Lezcano wrote: do you agree with this patchset ? In principle yes, apart from some function naming and I'm waiting for Lorenzo's ack as well. Do you plan to upstream this directly via your tree? If

Re: [update][PATCH v10 06/21] ACPI / sleep: Introduce CONFIG_ACPI_GENERIC_SLEEP

2015-03-13 Thread Rafael J. Wysocki
On Friday, March 13, 2015 04:14:29 PM Hanjun Guo wrote: > From: Graeme Gregory > > ACPI 5.1 does not currently support S states for ARM64 hardware but > ACPI code will call acpi_target_system_state() and acpi_sleep_init() > for device power management, so introduce CONFIG_ACPI_GENERIC_SLEEP >

Re: [PATCH 3/6] ARM64: cpuidle: Replace cpu_suspend by the common ARM/ARM64 function

2015-03-13 Thread Daniel Lezcano
On 03/13/2015 07:21 PM, Catalin Marinas wrote: On Tue, Mar 03, 2015 at 01:29:34PM +0100, Daniel Lezcano wrote: Call the common ARM/ARM64 'arm_cpuidle_suspend' instead of cpu_suspend function which is specific to ARM64. Signed-off-by: Daniel Lezcano --- drivers/cpuidle/cpuidle-arm64.c | 2 +-

Re: [Bugfix] x86/PCI: Release PCI IRQ resource only if PCI device is disabled when unbinding

2015-03-13 Thread Rafael J. Wysocki
On Friday, March 13, 2015 10:06:43 AM Jiang Liu wrote: > To support IOAPIC hot-removal, we need to release PCI interrupt resource > when unbinding PCI device driver. But due to historical reason, > /* > * We would love to complain here if pci_dev->is_enabled is set, that > * the driver should

[GIT PULL] Power management and ACPI fixes for 4.0-rc

2015-03-13 Thread Rafael J. Wysocki
Hi Linus, Please pull from git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \ pm+acpi-4.0-rc4 to receive power management and ACPI fixes for v4.0-rc4 with top-most commit b176023392360f28c0c8964a10effbc9a1f36c04 Merge branch 'pm-tools' on top of commit

Re: [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor

2015-03-13 Thread Thiago Macieira
On Friday 13 March 2015 12:42:52 Josh Triplett wrote: > > Hi Josh, > > > > From the overall description (i.e. I haven't looked at the code yet) > > this looks very interesting. However, it seems to cover a lot of the > > same ground as the process descriptor feature that was added to FreeBSD > >

[PATCH 12/12] crypto/sha-mb/sha1_mb.c : Syntax error

2015-03-13 Thread Ameen Ali
fixing a syntax-error . Signed-off-by : Ameen Ali --- arch/x86/crypto/sha-mb/sha1_mb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c b/arch/x86/crypto/sha-mb/sha1_mb.c index fd9f6b0..ec0b989 100644 --- a/arch/x86/crypto/sha-mb/sha1_mb.c +++

Re: [PATCH 07/12] clocksource: qcom: Remove dead code

2015-03-13 Thread Daniel Lezcano
On 03/13/2015 07:22 PM, Stephen Boyd wrote: On 03/13/15 11:14, Daniel Lezcano wrote: On 03/13/2015 07:09 PM, Stephen Boyd wrote: This code is no longer used now that mach-msm has been removed. Delete it. Cc: Daniel Lezcano Cc: David Brown Cc: Bryan Huntsman Cc: Daniel Walker

Re: [GIT PULL] at91: cleanup for 4.1 #2

2015-03-13 Thread Arnd Bergmann
On Friday 13 March 2015 18:12:29 Nicolas Ferre wrote: > Arnd, Olof, Kevin, > > Another cleanup series on top of the previous one that I sent you this > afternoon ;-) I think it is the last time that we can remove a whole bunch of > files and legacy code... We were getting used to it! > I still

[RFC PATCH] crypto: prevent helper ciphers from being allocated by users

2015-03-13 Thread Stephan Mueller
Hi, Several hardware related cipher implementations are implemented as follows: a "helper" cipher implementation is registered with the kernel crypto API. Such helper ciphers are never intended to be called by normal users. In some cases, calling them via the normal crypto API may even cause

[PATCH] Documentation: Remove mentioning of block barriers

2015-03-13 Thread Leonid V. Fedorenchik
Remove mentioning of block barriers since they were removed. Signed-off-by: Leonid V. Fedorenchik --- Documentation/block/biodoc.txt | 36 +--- 1 file changed, 9 insertions(+), 27 deletions(-) diff --git a/Documentation/block/biodoc.txt

Re: [PATCH v2] dgnc: Don't save boards in memory that have failed to initialize

2015-03-13 Thread Mark Hounschell
On 03/12/2015 12:14 PM, Giedrius Statkevičius wrote: On 2015.03.12 12:08, Greg KH wrote: On Mon, Mar 09, 2015 at 06:29:38PM +0200, Giedrius Statkevičius wrote: Remove BOARD_FAILED and don't save dgnc_boards which failed to initialize. Assign the result of kzalloc() to brd in

Re: [PATCH 0/6] ARM: cpuidle: Unify the ARM64/ARM DT approach

2015-03-13 Thread Rob Herring
On Thu, Mar 12, 2015 at 9:25 AM, Daniel Lezcano wrote: > > Catalin, Rob, > > do you agree with this patchset ? There's very little to do with DT, but looks fine to me. Rob > > Thanks > -- Daniel > > > On 03/03/2015 01:29 PM, Daniel Lezcano wrote: >> >> There is a big number of cpuidle

[PATCH] Add device tree support to adp1653 flash driver

2015-03-13 Thread Pavel Machek
Nokia N900 is switching to device tree, make sure we can use flash there, too. Signed-off-by: Pavel Machek diff --git a/drivers/media/i2c/adp1653.c b/drivers/media/i2c/adp1653.c index 873fe19..0341009 100644 --- a/drivers/media/i2c/adp1653.c +++ b/drivers/media/i2c/adp1653.c @@ -8,6 +8,7 @@ *

Re: [PATCH 00/12] Remove mach-msm and associated code

2015-03-13 Thread Stephen Boyd
On 03/13/15 12:55, Arnd Bergmann wrote: > On Friday 13 March 2015 11:09:33 Stephen Boyd wrote: >> The maintainers for mach-msm no longer have any plans to support >> or test the platforms supported by this architecture[1]. Most likely >> there aren't any active users of this code anyway, so let's

Re: [PATCH 01/12] ARM: Remove mach-msm and associated ARM architecture code

2015-03-13 Thread Stephen Boyd
On 03/13/15 12:36, Paul Bolle wrote: > I've checked this series with my local Kconfig checker (for no other > reason than that it removes board-sapphire.c and I had promised to do so > too a week ago). > > On Fri, 2015-03-13 at 11:09 -0700, Stephen Boyd wrote: >> --- a/arch/arm/mach-msm/Kconfig >>

Re: [PATCH] checkpatch: catch all world writable debugfs_create_file

2015-03-13 Thread Joe Perches
On Fri, 2015-03-13 at 15:23 -0400, Nicholas Mc Guire wrote: > Currently checkpatch will fuss if one uses world writable settings in debugfs > files by passing S_IWUGO but not when passing S_IWOTH, S_IRWXUGO or S_IALLUGO. > This patch extends the check to catches all cases exporting world writable

[PATCH v2 2/2] Documentation: omap-twl4030: Move ti,codec property to optional

2015-03-13 Thread Marek Belisko
ti,codec property is not used in omap-twl4030 driver in linux kernel but we keep it as optional property, so that the existing dtbs do not become noncompliant after the change on other OS. Signed-off-by: Marek Belisko --- Documentation/devicetree/bindings/sound/omap-twl4030.txt | 3 +-- 1 file

[PATCH v2 0/2] ARM: devicetree: Remove unused ti,codec property

2015-03-13 Thread Marek Belisko
ti,codec in not parsed in omap-twl4030 sound driver. It's not necessary to specify this property in DT because ti,twl4030-audio which ti,codec was pointing to by phandle is mfd driver and device for ASoC ic created w/o any DT property (codec name is hardcoded in ASoC driver). Please see reply [1]

[PATCH v2 1/2] ARM: dts: omap3: Remove all references to ti,codec property

2015-03-13 Thread Marek Belisko
ti,codec property is not used (parsed) in omap-twl4030 driver. The ti,twl4030-audio which ti,codec points by phandle is mfd driver and device for ASoC codec is created w/o DT compatible string. Removing all references in DT files. Signed-off-by: Marek Belisko ---

Re: [PATCH] mmc: dw_mmc: Add a timeout for sending CMD11

2015-03-13 Thread Doug Anderson
Jaehoon, On Fri, Mar 13, 2015 at 4:19 AM, Jaehoon Chung wrote: > Hi Doug. > > This patch is a right process. Just i wonder something. > > On 03/10/2015 08:18 AM, Doug Anderson wrote: >> In the Designware databook's description of the "Voltage Switch Normal >> Scenario" it instructs us to set a

Re: [PATCH] ARM: at91: force CPU selection

2015-03-13 Thread Alexandre Belloni
On 13/03/2015 at 20:50:59 +0100, Arnd Bergmann wrote : > > > > Actually, I had a closer look today and there is already just one level > > in my current version of patches. > > > > I can put everything under menuconfig ARCH_AT91 but I can't remove > > SOC_SAM_V7 and SOC_SAM_V4_V5 because that is

Re: [PATCH v4 3/9] selftests: Introduce minimal shared logic for running tests

2015-03-13 Thread Shuah Khan
On 03/13/2015 11:19 AM, Shuah Khan wrote: > On 03/10/2015 10:05 PM, Michael Ellerman wrote: >> This adds a Make include file which most selftests can then include to >> get the run_tests logic. >> >> On its own this has the advantage of some reduction in repetition, and >> also means the pass/fail

Re: [PATCH] mmc: dw_mmc: Consider HLE errors to be data and command errors

2015-03-13 Thread Doug Anderson
Hi, On Fri, Mar 13, 2015 at 4:30 AM, Jaehoon Chung wrote: > Hi, Doug. > > On 03/11/2015 12:48 AM, Doug Anderson wrote: >> The dw_mmc driver enables HLE errors as part of DW_MCI_ERROR_FLAGS but >> nothing in the interrupt handler actually handles them and ACKs them. >> That means that if we ever

Re: [PATCH 01/15] perf build: Disable default check for libbabeltrace

2015-03-13 Thread Arnaldo Carvalho de Melo
Em Fri, Mar 13, 2015 at 05:20:11PM +0100, Jiri Olsa escreveu: > On Fri, Mar 13, 2015 at 12:36:21PM -0300, Arnaldo Carvalho de Melo wrote: > > SNIP > > > > > Auto-detecting system features: > > ... dwarf: [ on ] > > ... glibc: [ on ] > > ...

[PATCH] selftests: check that execveat returns negative values in case of errors

2015-03-13 Thread Andrey Vagin
Currently we check that execveat returns non-positive value when an error is expected. But we need to check that execveat() doesn't return zero in such cases too. Cc: Shuah Khan Signed-off-by: Andrey Vagin --- tools/testing/selftests/exec/execveat.c | 2 +- 1 file changed, 1 insertion(+), 1

Re: [PATCH] checkkconfigsymbols.py: make it Git aware

2015-03-13 Thread Paul Bolle
On Wed, 2015-03-11 at 16:04 +0100, Valentin Rothberg wrote: > Paul, how long does your monster run? Maybe I just call it wrong or > mess up with caches. Even longer, I presume. Because an update for just a new linux next release can take over a minute on my fastest machine (a ThinkPad X220).

Re: [PATCH V5] Allow compaction of unevictable pages

2015-03-13 Thread Michal Hocko
On Fri 13-03-15 15:09:15, Eric B Munson wrote: > On Fri, 13 Mar 2015, Rik van Riel wrote: > > > On 03/13/2015 01:26 PM, Eric B Munson wrote: > > > > > --- a/mm/compaction.c > > > +++ b/mm/compaction.c > > > @@ -1046,6 +1046,8 @@ typedef enum { > > > ISOLATE_SUCCESS,/* Pages isolated,

Re: [PATCH] checkpatch: catch all world writable debugfs_create_file

2015-03-13 Thread Joe Perches
On Fri, 2015-03-13 at 15:23 -0400, Nicholas Mc Guire wrote: > Currently checkpatch will fuss if one uses world writable settings in debugfs > files by passing S_IWUGO but not when passing S_IWOTH, S_IRWXUGO or S_IALLUGO. > This patch extends the check to catches all cases exporting world writable

Re: [RFC 1/2] mmc: read mmc alias from device tree

2015-03-13 Thread Doug Anderson
Hi, On Tue, Apr 1, 2014 at 1:35 PM, wrote: > From: Stefan Agner > > To get the SD/MMC host device ID, read the alias from the device > tree. > > This is useful in case a SoC has multipe SD/MMC host controllers while > the second controller should logically be the first device (e.g. if > the

Re: [PATCH v2] dgnc: Don't save boards in memory that have failed to initialize

2015-03-13 Thread Giedrius Statkevičius
Hi Greg, On 2015.03.12 12:08, Greg KH wrote: > On Mon, Mar 09, 2015 at 06:29:38PM +0200, Giedrius Statkevičius wrote: >> Remove BOARD_FAILED and don't save dgnc_boards which failed to >> initialize. >> >> Assign the result of kzalloc() to brd in dgnc_found_board() and only put >> it in the

Re: [PATCH] Lock 7 is cpuidle specific, use non-generic value for locking

2015-03-13 Thread Andy Gross
On Thu, Mar 12, 2015 at 04:16:00PM -0600, Lina Iyer wrote: > >It looks like the remote side unlocks it too? It doesn't seem like this > >will work with the framework very well. The framework has a kernel > >spinlock attached to the hwspinlock so when we lock the hwspinlock we > >also lock the

Re: [PATCH V5] Allow compaction of unevictable pages

2015-03-13 Thread Michal Hocko
On Fri 13-03-15 13:26:37, Eric B Munson wrote: [...] > +compact_unevictable > + > +Available only when CONFIG_COMPACTION is set. When set to 1, compaction is > +allowed to examine the unevictable lru (mlocked pages) for pages to compact. > +This should be used on systems where stalls for minor

Re: [PATCH] x86: Add kerneldoc for pcommit_sfence()

2015-03-13 Thread Ross Zwisler
On Thu, 2015-03-12 at 11:58 +0100, Ingo Molnar wrote: > > > +/** > > > + * pcommit_sfence() - persistent commit and fence > > > + * > > > + * The pcommit instruction ensures that data that has been flushed from > > > the > > > + * processor's cache hierarchy with clwb, clflushopt or clflush is >

Re: [PATCH 00/12] Remove mach-msm and associated code

2015-03-13 Thread Arnd Bergmann
On Friday 13 March 2015 20:55:30 Arnd Bergmann wrote: > > I think the MMC driver should also be removed when the platform > code is deleted, new code would use the mmci driver anyway. Nevermind, I now see patch 6/12, which does just this. Arnd -- To unsubscribe from this list: send the

Re: [PATCH 6/6] clone4: Introduce new CLONE_FD flag to get task exit notification via fd

2015-03-13 Thread josh
On Fri, Mar 13, 2015 at 05:21:13PM +0100, Oleg Nesterov wrote: > Josh, > > I'll certainly try to read this series, but not before next week. Thanks for looking at it. > but a couple of nits right now. > > On 03/12, Josh Triplett wrote: > > > > When passed CLONE_FD, clone4 will return a file

Re: [PATCH 00/12] Remove mach-msm and associated code

2015-03-13 Thread Arnd Bergmann
On Friday 13 March 2015 11:09:33 Stephen Boyd wrote: > The maintainers for mach-msm no longer have any plans to support > or test the platforms supported by this architecture[1]. Most likely > there aren't any active users of this code anyway, so let's > delete it and the associated drivers/code.

Re: [PATCH 6/6] dts: msm8974: Add dma channels for blsp2_i2c1 node

2015-03-13 Thread Andy Gross
On Fri, Mar 13, 2015 at 11:19:52PM +0530, Sricharan R wrote: > Signed-off-by: Sricharan R > --- Reviewed-by: Andy Gross > arch/arm/boot/dts/qcom-msm8974.dtsi | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi >

Re: [PATCH 05/12] net: smc91x: Remove dead code

2015-03-13 Thread Arnd Bergmann
On Friday 13 March 2015 11:09:38 Stephen Boyd wrote: > This config no longer exists now that mach-msm has been removed. > Delete it and the associated code. > > Cc: David S. Miller > Cc: David Brown > Cc: Bryan Huntsman > Cc: Daniel Walker > Signed-off-by: Stephen Boyd > --- > > This can be

Re: [RFC] capabilities: Ambient capabilities

2015-03-13 Thread Kees Cook
On Fri, Mar 13, 2015 at 12:03 PM, Andy Lutomirski wrote: > On Fri, Mar 13, 2015 at 11:52 AM, Kees Cook wrote: >> >> All this said, almost half of the capabilities, if passed to flawed >> children with attacker controlled execution, can be elevated to full >> root privileges pretty easily[1], so

[PATCH v3 1/4] drm/msm/mdp5: Update generated header files

2015-03-13 Thread Stephane Viau
Prepare for pipeline operation mode configuration, in particular for DSI and WB modes. Signed-off-by: Stephane Viau --- drivers/gpu/drm/msm/mdp/mdp5/mdp5.xml.h | 68 - 1 file changed, 33 insertions(+), 35 deletions(-) diff --git

[PATCH v3 4/4] drm/msm/mdp5: Make the intf connection in config module

2015-03-13 Thread Stephane Viau
Up until now, we assume that eDP is tight to intf_0 and HDMI to intf_3. This information shall actually come from the mdp5_cfg module since it can change from one chip to another. v2: rename macro to mdp5_cfg_intf_is_virtual() [pointed by Archit] v3: add sanity check before writing in

[PATCH v3 3/4] drm/msm/mdp5: Add START signal to kick off certain pipelines

2015-03-13 Thread Stephane Viau
Some interfaces (WB, DSI Command Mode) need to be kicked off through a START Signal. This signal needs to be sent at the right time and requests in some cases to keep track of the pipeline status (eg: whether pipeline registers are flushed AND output WB buffers are ready, in case of WB interface).

Re: [PATCH] ARM: at91: force CPU selection

2015-03-13 Thread Arnd Bergmann
On Friday 13 March 2015 19:32:00 Alexandre Belloni wrote: > On 10/03/2015 at 14:42:24 +0100, Arnd Bergmann wrote : > > On Tuesday 10 March 2015 10:42:09 Alexandre Belloni wrote: > > > > > > > > I actually added a bunch of these in other places, but have stopped > > > > doing so because Russell

[PATCH v3 2/4] drm/msm/mdp5: Enhance operation mode for pipeline configuration

2015-03-13 Thread Stephane Viau
DSI and WB interfaces need a more complex pipeline configuration than the current mdp5_ctl_set_intf(). For example, memory output connections need to be selected for WB. Interface mode (Video vs. Command modes) also need to be configured for DSI. This change takes care of configuring the whole

[PATCH v3 0/4] drm/msm: preparation for WB/DSI connectors

2015-03-13 Thread Stephane Viau
WB and DSI support are in the pipe and will come out soon. Before that, we need to prepare the MDP5 driver so we can support these connectors. v2: rename macro to mdp5_cfg_intf_is_virtual() [pointed by Archit] v3: add sanity check before writing in INTF_TIMING_ENGINE_EN registers Note: "drm/msm:

Re: [PATCH 5/5] drm/msm/mdp5: Add hardware configuration for msm8x16

2015-03-13 Thread Stéphane Viau
Hi, > Hi, > > On 03/09/2015 06:41 PM, Stephane Viau wrote: >> This change adds the hw configuration for msm8x16 chipsets in >> mdp5_cfg module. >> >> Note that only one external display interface is present in this >> configuration (DSI) but has not been enabled yet. It will be enabled >> once

Re: [PATCH v2 0/3] btrfs: ENOMEM bugfixes

2015-03-13 Thread Omar Sandoval
On Fri, Mar 13, 2015 at 12:04:30PM +0100, David Sterba wrote: > On Wed, Mar 11, 2015 at 09:40:17PM -0700, Omar Sandoval wrote: > > Ping. For anyone following along, it looks like commit cc87317726f8 > > ("mm: page_alloc: revert inadvertent !__GFP_FS retry behavior change") > > reverted the commit

Re: [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor

2015-03-13 Thread Josh Triplett
On Fri, Mar 13, 2015 at 04:05:29PM +, David Drysdale wrote: > On Fri, Mar 13, 2015 at 1:40 AM, Josh Triplett wrote: > > This patch series introduces a new clone flag, CLONE_FD, which lets the > > caller > > handle child process exit notification via a file descriptor rather than > > SIGCHLD.

Re: [PATCHv2] thermal: add omap3 support

2015-03-13 Thread Pavel Machek
Hi! > > @@ -384,25 +385,10 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap > > *bgp, int id, void *data); > > void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id); > > int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend); > > > > -#ifdef CONFIG_OMAP4_THERMAL >

[PATCH] blk-mq: rationalize plug

2015-03-13 Thread Shaohua Li
Previous post of the patch is lost, so I repost. This is helpful, for example, using scsi-mq for a sata drive. plug is still helpful for workload with IO merge, but it can be harmful otherwise especially with multiple hardware queues, as there is (supposed) no lock contention in this case and

Re: [PATCH] phy: Add a driver for dm816x USB PHY

2015-03-13 Thread Tony Lindgren
* Matthijs van Duin [150313 11:39]: > Given that the documentation mentions the actual phy used, it may be > worth mentioning this also in the driver? i.e. that it's not a > "dm816x phy" but a "SR70LX Synopsys USB 2.0 OTG nanoPHY" (in contrast > to the dm814x and am335x which use a phy TI made

Re: [PATCH 01/12] ARM: Remove mach-msm and associated ARM architecture code

2015-03-13 Thread Paul Bolle
I've checked this series with my local Kconfig checker (for no other reason than that it removes board-sapphire.c and I had promised to do so too a week ago). On Fri, 2015-03-13 at 11:09 -0700, Stephen Boyd wrote: > --- a/arch/arm/mach-msm/Kconfig > +++ /dev/null > -config MSM_SMD > - bool

Re: [PATCH] tracing: add trace event for memory-failure

2015-03-13 Thread Steven Rostedt
On Fri, 13 Mar 2015 09:37:34 -0700 Tony Luck wrote: > > int sysctl_memory_failure_early_kill __read_mostly = 0; > > > > @@ -837,6 +838,8 @@ static struct page_state { > > */ > > static void action_result(unsigned long pfn, char *msg, int result) > > { > > +

Re: [PATCH 4/4] x86/fpu: don't abuse drop_init_fpu() in flush_thread()

2015-03-13 Thread Borislav Petkov
On Fri, Mar 13, 2015 at 05:26:54PM +0100, Oleg Nesterov wrote: > > One example where drop_init_fpu() seems to make sense is > > __kernel_fpu_end(): kernel is done with FPU and current was using the > > FPU prior so let's restore it for the eagerfpu case. > > No, no, this is another case or I

[PATCH] checkpatch: catch all world writable debugfs_create_file

2015-03-13 Thread Nicholas Mc Guire
;id", S_IALLUGO, t_dir, NULL, _fops); and t_file = debugfs_create_file("id", S_IWOTH | S_IXOTH, t_dir, NULL, _fops); Patch is against 4.0-rc3 (localversion-next is -next-20150313) scripts/checkpatch.pl | 10 -- 1 file changed, 8 insertions(+), 2 deletions(-) diff --g

[Patch] dt: OF_UNITTEST make dependency broken

2015-03-13 Thread Frank Rowand
From: Frank Rowand If CONFIG_OF_UNITTEST=y then a kernel image make will always cause .version to be incremented, even if there are not source changes. This is caused by a lack of dependency tracking and checking for drivers/of/unittest-data/testcases.dtb.o. Signed-off-by: Frank Rowand ---

Re: [Patch v3 1/3] dt: OF_UNITTEST make dependency broken, framework fixes

2015-03-13 Thread Frank Rowand
On 3/13/2015 6:13 AM, Rob Herring wrote: > On Thu, Mar 12, 2015 at 8:15 AM, Frank Rowand wrote: >> From: Frank Rowand >> >> This 3 patch series is not bisectable. If CONFIG_OF_UNITTEST=y then the >> kernel >> will not build with just patch 1 or just patches 1 and 2 applied. > > If you did 2

[PATCH v3 man-pages] bpf.2: new page documenting bpf(2)

2015-03-13 Thread Alexei Starovoitov
v1: initial draft v2: fixed tons of grammar mistakes pointed by Silvan Jegen v3: introduce BPF abbreviation sooner as suggested by Walter Harms Signed-off-by: Alexei Starovoitov --- man2/bpf.2 | 630 1 file changed, 630 insertions(+)

[PATCH] rnndb: update generated headers

2015-03-13 Thread Stephane Viau
From: Beeresh Gopal To avoid ambiguity rename register FRAME_SIZE to SSTILE_FRAME_SIZE. Signed-off-by: Beeresh Gopal --- rnndb/mdp/mdp4.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/rnndb/mdp/mdp4.xml b/rnndb/mdp/mdp4.xml index 26d1deb..a84f530 100644 ---

Re: [PATCH V5] Allow compaction of unevictable pages

2015-03-13 Thread Eric B Munson
On Fri, 13 Mar 2015, Rik van Riel wrote: > On 03/13/2015 01:26 PM, Eric B Munson wrote: > > > --- a/mm/compaction.c > > +++ b/mm/compaction.c > > @@ -1046,6 +1046,8 @@ typedef enum { > > ISOLATE_SUCCESS,/* Pages isolated, migrate */ > > } isolate_migrate_t; > > > > +int

[PATCH v2 1/2] drm/msm: update generated headers

2015-03-13 Thread Stephane Viau
From: Beeresh Gopal To avoid ambiguity rename FRAME_SIZE to SSTILE_FRAME_SIZE Signed-off-by: Beeresh Gopal --- drivers/gpu/drm/msm/mdp/mdp4/mdp4.xml.h | 36 + 1 file changed, 14 insertions(+), 22 deletions(-) diff --git

[PATCH v2 2/2] drm/msm/mdp4: Support NV12MT format in mdp4

2015-03-13 Thread Stephane Viau
From: Beeresh Gopal Using fb modifier flag, support NV12MT format in MDP4. v2: - rework the modifier's description [Daniel Vetter's comment] - drop .set_mode_config() callback [Rob Clark's comment] Signed-off-by: Beeresh Gopal Signed-off-by: Stephane Viau ---

[PATCH v2 0/2] drm/msm: Add support for NV12MT format in mdp4

2015-03-13 Thread Stephane Viau
Resending a v2 on behalf of Beeresh with comments from Daniel and Rob addressed. Beeresh Gopal (2): drm/msm: update generated headers drm/msm/mdp4: Support NV12MT format in mdp4 drivers/gpu/drm/msm/mdp/mdp4/mdp4.xml.h | 36 ---

Re: [RFC] capabilities: Ambient capabilities

2015-03-13 Thread Andy Lutomirski
On Fri, Mar 13, 2015 at 11:52 AM, Kees Cook wrote: > > All this said, almost half of the capabilities, if passed to flawed > children with attacker controlled execution, can be elevated to full > root privileges pretty easily[1], so I think any documentation around > this feature should include

[PATCH v2 net-next 2/2] samples: bpf: add skb->field examples and tests

2015-03-13 Thread Alexei Starovoitov
- modify sockex1 example to count number of bytes in outgoing packets - modify sockex2 example to count number of bytes and packets per flow - add 4 stress tests that exercise 'skb->field' code path of verifier Signed-off-by: Alexei Starovoitov --- samples/bpf/sockex1_kern.c |8 +++--

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