Commit graph

691,473 commits

Author SHA1 Message Date
Gabriel Fernandez
be20fe159d clk: stm32f4: Update DT bindings documentation
Creation of dt include file for specific stm32f4 clocks.
These specific clocks are not derived from system clock (SYSCLOCK)
We should use index 1 to use these clocks in DT.
e.g. <&rcc 1 CLK_LSI>

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Rob Herring <robh@kernel.org>
2017-01-10 11:40:40 +01:00
Fabian Frederick
d50c4dd527 udf: remove empty condition
loc & 0x02 is empty since first git version in 2005 in
udf_add_extendedattr()

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
2017-01-10 11:37:31 +01:00
Fabian Frederick
bbc9abd239 udf: remove unneeded line break
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
2017-01-10 11:37:03 +01:00
Fabian Frederick
02d4ca49fa udf: merge bh free
Merge all bh free at one place.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
2017-01-10 11:36:35 +01:00
Fabian Frederick
3cc6f8444a udf: use pointer for kernel_long_ad argument
Having struct kernel_long_ad laarr[EXTENT_MERGE_SIZE]
in all function arguments could be understood as by-value parameter.
Use kernel_long_ad pointer for functions depending on
inode_getblk()

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
2017-01-10 11:32:49 +01:00
Fabian Frederick
75f271380d udf: use __packed instead of __attribute__ ((packed))
defined in linux/compiler-gcc.h

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
2017-01-10 11:29:11 +01:00
Bhumika Goyal
fc36ec76f3 drm/exynos: constify exynos_drm_crtc_ops structures
Declare exynos_drm_crtc_ops structures as const as they are only passed
as an argument to the function exynos_drm_crtc_create. This argument is
of type const struct exynos_drm_crtc_ops *, so exynos_drm_crtc_ops
structures having this property can be declared const.
Done using Coccinelle:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct exynos_drm_crtc_ops i@p={...};

@ok@
position p;
identifier r.i;
@@
exynos_drm_crtc_create(...,&i@p,...)

@bad@
position p!={r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
+const
struct exynos_drm_crtc_ops i;

File size before:
   text	   data	    bss	    dec	    hex	filename
   5008	    280	      0	   5288	   14a8	exynos/exynos5433_drm_decon.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   5120	    176	      0	   5296	   14b0 exynos/exynos5433_drm_decon.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483984493-25284-1-git-send-email-bhumirks@gmail.com
2017-01-10 11:18:16 +01:00
Gabriel Krisman Bertazi
f9a87bd7d5 drm: Move drm_clflush prototypes to drm_cache header file
Continue to clean up drmP.h by moving the cache flushing functions into
it's own header file.

Compile-tested only

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109215649.6860-2-krisman@collabora.co.uk
2017-01-10 11:17:01 +01:00
Gabriel Krisman Bertazi
f0e36723a6 drm: Document drm_cache interface
Notice that this uncovers an issue with the kernel-doc handling of array
arguments, causing the first parameter of drm_clflush_pages() to not
show up in the rst-generated page.  A proposed fix is under review in
linux-doc: <http://www.spinics.net/lists/linux-doc/msg42544.html>

Changes since v1:
 - Add section to drm-mm.rst.
 - Fix kernel-doc style issues.
 - s/memory/kernel memory/.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109215649.6860-1-krisman@collabora.co.uk
2017-01-10 11:16:33 +01:00
Florian Westphal
75cda62d9c xfrm: state: simplify rcu_read_unlock handling in two spots
Instead of:
  if (foo) {
      unlock();
      return bar();
   }
   unlock();
do:
   unlock();
   if (foo)
       return bar();

This is ok because rcu protected structure is only dereferenced before
the conditional.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-01-10 10:57:14 +01:00
Florian Westphal
711059b975 xfrm: add and use xfrm_state_afinfo_get_rcu
xfrm_init_tempstate is always called from within rcu read side section.
We can thus use a simpler function that doesn't call rcu_read_lock
again.

While at it, also make xfrm_init_tempstate return value void, the
return value was never tested.

A followup patch will replace remaining callers of xfrm_state_get_afinfo
with xfrm_state_afinfo_get_rcu variant and then remove the 'old'
get_afinfo interface.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-01-10 10:57:13 +01:00
Florian Westphal
af5d27c4e1 xfrm: remove xfrm_state_put_afinfo
commit 44abdc3047
("xfrm: replace rwlock on xfrm_state_afinfo with rcu") made
xfrm_state_put_afinfo equivalent to rcu_read_unlock.

Use spatch to replace it with direct calls to rcu_read_unlock:

@@
struct xfrm_state_afinfo *a;
@@

-  xfrm_state_put_afinfo(a);
+  rcu_read_unlock();

old:
 text    data     bss     dec     hex filename
22570      72     424   23066    5a1a xfrm_state.o
 1612       0       0    1612     64c xfrm_output.o
new:
22554      72     424   23050    5a0a xfrm_state.o
 1596       0       0    1596     63c xfrm_output.o

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-01-10 10:57:13 +01:00
Florian Westphal
423826a7b1 xfrm: avoid rcu sparse warning
xfrm/xfrm_state.c:1973:21: error: incompatible types in comparison expression (different address spaces)

Harmless, but lets fix it to reduce the noise.

While at it, get rid of unneeded NULL check, its never hit:

net/ipv4/xfrm4_state.c: xfrm_state_register_afinfo(&xfrm4_state_afinfo);
net/ipv6/xfrm6_state.c: return xfrm_state_register_afinfo(&xfrm6_state_afinfo);
net/ipv6/xfrm6_state.c: xfrm_state_unregister_afinfo(&xfrm6_state_afinfo);

... are the only callsites.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-01-10 10:57:13 +01:00
Florian Westphal
961a9c0a4a xfrm: remove unused function
Has been ifdef'd out for more than 10 years, remove it.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-01-10 10:57:12 +01:00
Kevin Hilman
5280bc3ed7 ARM: dts: davinci: da850-lcdk: enable VPIF
Enable VPIF for video captpure and configure input channel 0, used for
composite input.

Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-10 15:09:29 +05:30
Kevin Hilman
8922306e25 ARM: dts: davinci: da850-evm: enable VPIF
Enable VPIF node for video capture, and configure ports.  EVM board
uses channel 0 for composite input and channel 1 S-Video input.

Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-10 15:07:32 +05:30
Kevin Hilman
6afa43a4bc ARM: dts: davinci: da850: VPIF: add node and muxing
Add VPIF node and pins to da850 SoC.  VPIF has two input channels which
can be described using the standard DT ports and endpoints.

Signed-off-by: Kevin Hilman <khilman@baylibre.com>
[nsekhar@ti.com: drop stray newline, typo fixes in commit message]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-10 15:05:33 +05:30
David Lechner
322128e907 ARM: davinci_all_defconfig: Enable PWM modules
This enables PWM and the TI ECAP and EHRWPM modules. These are used on LEGO
MINDSTORMS EV3.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-10 14:49:47 +05:30
David Lechner
73a40d793c ARM: davinci_all_defconfig: enable DA8xx pinconf
This enables the DA8xx pinconf driver by default. It is needed by LEGO
MINDSTORMS EV3.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-10 14:49:04 +05:30
Michel Thierry
254e0931f5 drm/i915/glk: Convert a few more IS_BROXTON() to IS_GEN9_LP()
Commit cc3f90f063 ("drm/i915/glk: Reuse broxton code for geminilake")
missed a few of occurences of IS_BROXTON() that should have been
coverted to IS_GEN9_LP().

v2: Cite the right commit. (Ander)

Fixes: cc3f90f063 ("drm/i915/glk: Reuse broxton code for geminilake")
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Tomasz Lis <tomasz.lis@intel.com> (v1)
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1483973495-15138-1-git-send-email-ander.conselvan.de.oliveira@intel.com
2017-01-10 11:03:57 +02:00
Rodrigo Vivi
b9fd799e40 drm/i915/glk: Add missing bits to allow runtime pm suspend on GLK.
Besides having the DMC firmware in place and loaded let's
handle runtime suspend and dc9 as we do for Broxton.

Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481902946-18593-2-git-send-email-ander.conselvan.de.oliveira@intel.com
2017-01-10 11:03:57 +02:00
Anusha Srivatsa
dbb28b5c3d drm/i915/DMC/GLK: Load DMC on GLK
This patch loads the DMC on GLK. There is a single
firmware image for all steppings on a GLK.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481902946-18593-1-git-send-email-ander.conselvan.de.oliveira@intel.com
2017-01-10 11:03:56 +02:00
Chris Wilson
91d4e0aa92 drm/i915: Move ggtt fence/alignment to i915_gem_tiling.c
Rename i915_gem_get_ggtt_size() and i915_gem_get_ggtt_alignment() to
i915_gem_fence_size() and i915_gem_fence_alignment() respectively to
better match usage. Similarly move the pair of functions into
i915_gem_tiling.c next to the fence restrictions.

Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-6-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-01-10 08:12:22 +00:00
Chris Wilson
cea84d16c3 drm/i915: Remove the rounding down of the gen4+ fence region
Restricting the fence to the end of the previous tile-row breaks access
to the final portion of the object. On gen2/3 we employed lazy fencing
to pad out the fence with scratch page to provide access to the tail,
and now we also pad out the object on gen4+ we can apply the same fix.

Fixes: af1a7301c7 ("drm/i915: Only fence tiled region of object.")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-5-chris@chris-wilson.co.uk
2017-01-10 08:12:21 +00:00
Chris Wilson
944397f04f drm/i915: Store required fence size/alignment for GGTT vma
The fence size/alignment is a combination of the vma size plus object
tiling parameters. Those parameters are rarely changed, making the fence
size/alignemnt roughly constant for the lifetime of the VMA. We can
simplify subsequent calculations by precalculating the size/alignment
required for GGTT vma taking fencing into account (with an update if we
do change the tiling or stride).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-4-chris@chris-wilson.co.uk
2017-01-10 08:12:21 +00:00
Chris Wilson
0d4e8f1dbc drm/i915: Replace WARNs in fence register writes with extensive asserts
All of these conditions are prechecked by i915_tiling_ok() before we
allow setting the tiling/stride on the object and so we should never
fail asserting those conditions before writing the register.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-3-chris@chris-wilson.co.uk
2017-01-10 08:12:20 +00:00
Chris Wilson
5b30694b47 drm/i915: Align GGTT sizes to a fence tile row
Ensure the view occupies the full tile row so that reads/writes into the
VMA do not escape (via fenced detiling) into neighbouring objects - we
will pad the object with scratch pages to satisfy the fence. This
applies the lazy-tiling we employed on gen2/3 to gen4+.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-2-chris@chris-wilson.co.uk
2017-01-10 08:12:20 +00:00
Chris Wilson
6649a0b650 drm/i915: Extract tile_row_size for fencing
Computing the tile row size of a tiled object (for use with fence
registers) is repeated, so extract it to a common helper.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-01-10 08:12:09 +00:00
Jani Nikula
79b11b6437 Merge tag 'gvt-fixes-2017-01-10' of https://github.com/01org/gvt-linux into drm-intel-fixes
GVT-g fixes from Zhenya, "Please pull GVT-g device model fixes for
rc4. This is based on rc3 with new vfio/mdev interface change."

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-01-10 10:10:31 +02:00
Kuninori Morimoto
b1980ff0c3 arm64: dts: h3ulcb: follow sound CTU/MIX supports
commit 5bcd74e8a30d9259 ("arm64: dts: r8a7795: add sound MIX support")
commit 5be5ee41d011f26b ("arm64: dts: r8a7795: add sound CTU support")
added MIX/CTU support, and it updated clocks on SoC level.
Thus, h3ulcb should be updated

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-10 08:59:15 +01:00
Andrey Smirnov
d4cd158176 ARM: dts: vf610-zii-dev: Add .dts file for rev. C
Add .dts file for rev. C of the board by factoring out commonalities
into a shared include file (vf610-zii-dev-rev-b-c.dtsi) and deriving
revision specific file from it (vf610-zii-dev-rev-b.dts and
vf610-zii-dev-reb-c.dts).

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: andrew@lunn.ch
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: cphealy@gmail.com
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2017-01-10 15:51:17 +08:00
Andrey Smirnov
73f2e6593b ARM: dts: vf610-zii-dev-rev-b: Remove leftover PWM pingroup
Remove pwm0grp since it is:

	a) Not referenced anywhere in the DTS file (unlike Tower board it
	is based on, this board does not use/expose FTM0)

	b) Configures PTB2 and PTB3 in a way that contradicts
	pinctrl-mdio-mux

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: andrew@lunn.ch
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Cc: cphealy@gmail.com
Tested-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2017-01-10 15:51:00 +08:00
Mickaël Salaün
b8aa845391 security: Fix inode_getattr documentation
Replace arguments @mnt and @dentry with @path.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Acked-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2017-01-10 17:39:23 +11:00
Gu Zheng
497de07d89 tmpfs: clear S_ISGID when setting posix ACLs
This change was missed the tmpfs modification in In CVE-2016-7097
commit 073931017b ("posix_acl: Clear SGID bit when setting
file permissions")
It can test by xfstest generic/375, which failed to clear
setgid bit in the following test case on tmpfs:

  touch $testfile
  chown 100:100 $testfile
  chmod 2755 $testfile
  _runas -u 100 -g 101 -- setfacl -m u::rwx,g::rwx,o::rwx $testfile

Signed-off-by: Gu Zheng <guzheng1@huawei.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-01-10 01:29:48 -05:00
Peter Ujfalusi
527a275913 dmaengine: omap-dma: Fix the port_window support
We do not yet have users of port_window. The following errors were found
when converting the tusb6010_omap.c musb driver:

- The peripheral side must have SRC_/DST_PACKED disabled
- when configuring the burst for the peripheral side the memory side
  configuration were overwritten: d->csdp = ... -> d->csdp |= ...
- The EI and FI were configured for the wrong sides of the transfers.

With these changes and the converted tus6010_omap.c I was able to verify
that things are working as they expected to work.

Fixes: 201ac4861c ("dmaengine: omap-dma: Support for slave devices with data port window")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-01-10 11:08:01 +05:30
M'boumba Cedric Madianga
5df4eb453c dmaengine: stm32-dma: Add error messages if xlate fails
This patch adds some error messages when a slave device fails to request a
channel.

Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Reviewed-by: Ludovic BARRE <ludovic.barre@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-01-10 10:50:47 +05:30
Krister Johansen
21d25f6a42 dmaengine: iota: ioat_alloc_chan_resources should not perform sleeping allocations.
On a kernel with DEBUG_LOCKS, ioat_free_chan_resources triggers an
in_interrupt() warning.  With PROVE_LOCKING, it reports detecting a
SOFTIRQ-safe to SOFTIRQ-unsafe lock ordering in the same code path.

This is because dma_generic_alloc_coherent() checks if the GFP flags
permit blocking.  It allocates from different subsystems if blocking is
permitted.  The free path knows how to return the memory to the correct
allocator.  If GFP_KERNEL is specified then the alloc and free end up
going through cma_alloc(), which uses mutexes.

Given that ioat_free_chan_resources() can be called in interrupt
context, ioat_alloc_chan_resources() must specify GFP_NOWAIT so that the
allocations do not block and instead use an allocator that uses
spinlocks.

Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-01-10 10:41:51 +05:30
Andy Shevchenko
ebb7fe2100 dmaengine: dw: pci: remove LPE Audio DMA ID
LPE Audio driver should take care of DMA IPs by itself. Keeping an ID like this
in dw_dma_pci.c is anyway wrong since that block has two DMA controllers under
one ID (like MFD device).

That's also why I didn't include LPE Audio ID for Intel Merrifield previously.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-01-10 10:37:34 +05:30
Emese Revfy
b6f0ec3621 scsi: esas2r: Fix format string type mistakes
This adds the missing __printf attribute which allows compile time
format string checking (and will be used by the coming initify gcc
plugin). Additionally, this fixes the warnings exposed by the attribute.

Signed-off-by: Emese Revfy <re.emese@gmail.com>
[kees: split scsi/acpi, merged attr and fix, new commit messages]
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:52:26 -05:00
Christoph Hellwig
eab5c1503b scsi: pmcraid: switch to pci_alloc_irq_vectors
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:47:00 -05:00
Christoph Hellwig
984dc46c57 scsi: bfa: remove bfa_fcs_mod_s
Just call the functions directly instead of obsfucating the call chain.
This was in reply to a patch from Kees Cook to constify the function
pointer struct bfa_fcs_mod_s, but it turns out there is no reason to
have this indirection at all.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:34:58 -05:00
Colin Ian King
577419f704 scsi: qla2xxx: rename {vendor|hba}_indentifer to {vendor|hba}_identifer
Rename the vendor_indentifer and hba_indentifer fields to correct
spelling.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:25:19 -05:00
Dave Jones
c3c4239465 scsi: qla2xxx: Fix apparent cut-n-paste error.
Commit 093df73771 ("scsi: qla2xxx: Fix Target mode handling with
Multiqueue changes.") introduces two bodies of code that look similar
but with s/req/rsp/ in the second instance.  But in one case, it looks
like this conversion was missed.

Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Quinn Tran <Quinn.Tran@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:23:09 -05:00
Nicolas Iooss
44a8f95444 scsi: qla2xxx: make msix_entries const
msix_entries and qla82xx_msix_entries arrays are never modified in
drivers/scsi/qla2xxx/qla_isr.c. Move their contents to read-only data.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:20:32 -05:00
Nicolas Iooss
e2e8f619ad scsi: qla2xxx: silence -Wformat-security warning
qla24xx_enable_msix() calls scnprintf() with a non-literal format
string. This makes clang report -Wformat-security warnings when
compiling this function:

    drivers/scsi/qla2xxx/qla_isr.c:3083:7: error: format string is not a
    string literal (potentially insecure) [-Werror,-Wformat-security]
                        msix_entries[i].name);
                        ^~~~~~~~~~~~~~~~~~~~
    drivers/scsi/qla2xxx/qla_isr.c:3083:7: note: treat the string as an
    argument to avoid this
                        msix_entries[i].name);
                        ^
                        "%s",
    drivers/scsi/qla2xxx/qla_isr.c:3119:7: error: format string is not a
    string literal (potentially insecure) [-Werror,-Wformat-security]
                        msix_entries[QLA_ATIO_VECTOR].name);
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    drivers/scsi/qla2xxx/qla_isr.c:3119:7: note: treat the string as an
    argument to avoid this
                        msix_entries[QLA_ATIO_VECTOR].name);
                        ^
                        "%s",

Even though msix_entries[...].name are initialized as literal strings
with no % character and are never modified, introduce a "%s" format
parameter in order to silence this -Wformat-security warning and make
clang able to detect at compile time real bugs related to string
formatting.

[mkp: typo]

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:17:27 -05:00
Milan P. Gandhi
c7702b8c22 scsi: qla2xxx: Get mutex lock before checking optrom_state
There is a race condition with qla2xxx optrom functions where one thread
might modify optrom buffer, optrom_state while other thread is still
reading from it.

In couple of crashes, it was found that we had successfully passed the
following 'if' check where we confirm optrom_state to be
QLA_SREADING. But by the time we acquired mutex lock to proceed with
memory_read_from_buffer function, some other thread/process had already
modified that option rom buffer and optrom_state from QLA_SREADING to
QLA_SWAITING. Then we got ha->optrom_buffer 0x0 and crashed the system:

        if (ha->optrom_state != QLA_SREADING)
                return 0;

        mutex_lock(&ha->optrom_mutex);
        rval = memory_read_from_buffer(buf, count, &off, ha->optrom_buffer,
            ha->optrom_region_size);
        mutex_unlock(&ha->optrom_mutex);

With current optrom function we get following crash due to a race
condition:

[ 1479.466679] BUG: unable to handle kernel NULL pointer dereference at           (null)
[ 1479.466707] IP: [<ffffffff81326756>] memcpy+0x6/0x110
[...]
[ 1479.473673] Call Trace:
[ 1479.474296]  [<ffffffff81225cbc>] ? memory_read_from_buffer+0x3c/0x60
[ 1479.474941]  [<ffffffffa01574dc>] qla2x00_sysfs_read_optrom+0x9c/0xc0 [qla2xxx]
[ 1479.475571]  [<ffffffff8127e76b>] read+0xdb/0x1f0
[ 1479.476206]  [<ffffffff811fdf9e>] vfs_read+0x9e/0x170
[ 1479.476839]  [<ffffffff811feb6f>] SyS_read+0x7f/0xe0
[ 1479.477466]  [<ffffffff816964c9>] system_call_fastpath+0x16/0x1b

Below patch modifies qla2x00_sysfs_read_optrom,
qla2x00_sysfs_write_optrom functions to get the mutex_lock before
checking ha->optrom_state to avoid similar crashes.

The patch was applied and tested and same crashes were no longer
observed again.

Tested-by: Milan P. Gandhi <mgandhi@redhat.com>
Signed-off-by: Milan P. Gandhi <mgandhi@redhat.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-09 23:15:02 -05:00
Al Viro
4675ac39b5 namei.c: split unlazy_walk()
In all but one case, the last two arguments are NULL and 0 resp.;
almost everyone just wants to switch nameidata to non-RCU mode.
The only exception is lookup_fast(), where we have a child dentry
we want to legitimize as well.  Split these two cases.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-01-09 22:29:15 -05:00
Al Viro
a89f833737 namei.c: fold the check for DCACHE_OP_REVALIDATE into d_revalidate()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-01-09 22:25:28 -05:00
Milo Kim
15f422c892 ARM: dts: imx6: Support Savageboard quad
Use common board file and support SATA interface additionally.
Specify the dtb file for i.MX6 build.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2017-01-10 11:25:03 +08:00
Milo Kim
7c9a567045 ARM: dts: imx6: Support Savageboard dual
Common savageboard DT file is used for board support.
Add the vendor name and specify the dtb file for i.MX6Q build.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2017-01-10 11:24:43 +08:00