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691,473 commits

Author SHA1 Message Date
Thomas Petazzoni
a8c249a71d net: mvpp2: remove unused register definitions
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:16 -05:00
Thomas Petazzoni
3eb2d99822 net: mvpp2: simplify mvpp2_bm_bufs_add()
The mvpp2_bm_bufs_add() currently creates a fake cookie by calling
mvpp2_bm_cookie_pool_set(), just to be able to call
mvpp2_pool_refill(). But all what mvpp2_pool_refill() does is extract
the pool ID from the cookie, and call mvpp2_bm_pool_put() with this ID.

Instead of doing this convoluted thing, just call mvpp2_bm_pool_put()
directly, since we have the BM pool ID.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:15 -05:00
Thomas Petazzoni
7ef7e1d949 net: mvpp2: drop useless fields in mvpp2_bm_pool and related code
This commit drops dead code from the mvpp2 driver. The 'in_use' and
'in_use_thresh' fields of 'struct mvpp2_bm_pool' are
incremented/decremented/initialized in various places. But they are only
used in one place:

       if (is_recycle &&
           (atomic_read(&bm_pool->in_use) < bm_pool->in_use_thresh))
               return 0;

However 'is_recycle', passed as argument to mvpp2_rx_refill() is always
false. So in fact, this code is never reached, and the 'is_recycle'
argument is useless. So let's drop this code.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:15 -05:00
Thomas Petazzoni
5dfa9e8337 net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue'
This commit remove a field of 'struct mvpp2_tx_queue' that is not used
anywhere.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:15 -05:00
Thomas Petazzoni
36fb7435b6 net: mvpp2: release reference to txq_cpu[] entry after unmapping
The mvpp2_txq_bufs_free() function is called upon TX completion to DMA
unmap TX buffers, and free the corresponding SKBs. It gets the
references to the SKB to free and the DMA buffer to unmap from a per-CPU
txq_pcpu data structure.

However, the code currently increments the pointer to the next entry
before doing the DMA unmap and freeing the SKB. It does not cause any
visible problem because for a given SKB the TX completion is guaranteed
to take place on the CPU where the TX was started. However, it is much
more logical to increment the pointer to the next entry once the current
entry has been completely unmapped/released.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:15 -05:00
Thomas Petazzoni
ab42676af0 net: mvpp2: handle too large value in mvpp2_rx_time_coal_set()
When configuring the MVPP2_ISR_RX_THRESHOLD_REG with the RX coalescing
time threshold, we do not check for the maximum allowed value supported
by the driver, which means we might overflow and use a bogus value. This
commit adds a check for this situation, and if a value higher than what
is supported by the hardware is provided, then we use the maximum value
supported by the hardware.

In order to achieve this in a way that avoids overflow and rounding
errors, we introduce two utility functions mvpp2_usec_to_cycles() and
cycles_to_usec(). Many thanks to Russell King for suggesting this
implementation.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:14 -05:00
Thomas Petazzoni
f8b0d5f8cc net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set()
Currently, mvpp2_rx_pkts_coal_set() does the following to avoid setting
a too large value for the RX coalescing by packet number:

  val = (pkts & MVPP2_OCCUPIED_THRESH_MASK);

This means that if you set a value that is slightly higher the the
maximum number of packets, you in fact get a very low value. It makes a
lot more sense to simply check if the value is too high, and if it's too
high, limit it to the maximum possible value.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:14 -05:00
Thomas Petazzoni
d63f9e41f9 net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set
As noticed by Russell King, the last argument of
mvpp2_rx_{pkts,time}_coal_set() is useless, since the packet/time
coalescing value is already stored in the 'struct mvpp2_rx_queue *'
passed as argument to these functions. So passing the packet/time value
as an additional argument, and setting them again in the mvpp2_rx_queue
structure is useles.

This commit therefore gets rid of this additional argument, assuming the
caller has assigned the appropriate value to rxq->pkts_coal or
rxq->time_coal before calling the respective functions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:14 -05:00
Thomas Petazzoni
239a3b6636 net: mvpp2: fix DMA address calculation in mvpp2_txq_inc_put()
When TX descriptors are filled in, the buffer DMA address is split
between the tx_desc->buf_phys_addr field (high-order bits) and
tx_desc->packet_offset field (5 low-order bits).

However, when we re-calculate the DMA address from the TX descriptor in
mvpp2_txq_inc_put(), we do not take tx_desc->packet_offset into
account. This means that when the DMA address is not aligned on a 32
bytes boundary, we end up calling dma_unmap_single() with a DMA address
that was not the one returned by dma_map_single().

This inconsistency is detected by the kernel when DMA_API_DEBUG is
enabled. We fix this problem by properly calculating the DMA address in
mvpp2_txq_inc_put().

Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:16:14 -05:00
Lee Ryder
b3bdc3acbb macsec: fix validation failed in asynchronous operation.
MACSec test failed when asynchronous crypto operations is used. It
encounters packet validation failed since macsec_skb_cb(skb)->valid
is always 'false'.

This patch adds missing "macsec_skb_cb(skb)->valid = true" in
macsec_decrypt_done() when "err == 0".

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 13:13:51 -05:00
Wolfram Sang
56d2c61d61 ASoC: rsnd: check return value of init function
Currently, this function cannot fail for the ADG case. Still, let's
apply defensive programming techniques to make sure we fail gracefully
whenever rsnd_mod_init() gets extended with another failure case.
Reported by Coverity (CID 1397893).

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-21 09:51:23 -08:00
Wolfram Sang
34157f7bec ASoC: rsnd: drop useles self-assignments
Coverity reported (CID 1397992) this self-assignment. I think the code
stays readable even with the assignments removed.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-21 09:51:23 -08:00
Jonas Gorski
0135c03df9 spi/bcm63xx: make spi subsystem aware of message size limits
The bcm63xx SPI controller does not allow manual control of the CS
lines and will toggle it automatically before and after sending data,
so we are limited to messages that fit in the FIFO buffer. Since the CS
lines aren't available as GPIOs either, we will need to make slave
drivers aware of this limitation so they can handle them accordingly.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-21 09:50:50 -08:00
kbuild test robot
a5b0443c9b spi: lantiq-ssc: fix platform_no_drv_owner.cocci warnings
drivers/spi/spi-lantiq-ssc.c:973:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-21 09:49:58 -08:00
Linus Lüssing
51c6b429c0 batman-adv: Fix transmission of final, 16th fragment
Trying to split and transmit a unicast packet in 16 parts will fail for
the final fragment: After having sent the 15th one with a frag_packet.no
index of 14, we will increase the the index to 15 - and return with an
error code immediately, even though one more fragment is due for
transmission and allowed.

Fixing this issue by moving the check before incrementing the index.

While at it, adding an unlikely(), because the check is actually more of
an assertion.

Fixes: ee75ed8887 ("batman-adv: Fragment and send skbs larger than mtu")
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-02-21 18:33:35 +01:00
Sven Eckelmann
248e23b50e batman-adv: Fix double free during fragment merge error
The function batadv_frag_skb_buffer was supposed not to consume the skbuff
on errors. This was followed in the helper function
batadv_frag_insert_packet when the skb would potentially be inserted in the
fragment queue. But it could happen that the next helper function
batadv_frag_merge_packets would try to merge the fragments and fail. This
results in a kfree_skb of all the enqueued fragments (including the just
inserted one). batadv_recv_frag_packet would detect the error in
batadv_frag_skb_buffer and try to free the skb again.

The behavior of batadv_frag_skb_buffer (and its helper
batadv_frag_insert_packet) must therefore be changed to always consume the
skbuff to have a common behavior and avoid the double kfree_skb.

Fixes: 610bfc6bc9 ("batman-adv: Receive fragmented packets and merge")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-02-21 18:33:15 +01:00
Gao Feng
8ccde4c562 net: sock: Use USEC_PER_SEC macro instead of literal 1000000
The USEC_PER_SEC is used once in sock_set_timeout as the max value of
tv_usec. But there are other similar codes which use the literal
1000000 in this file.
It is minor cleanup to keep consitent.

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 12:25:21 -05:00
Jason Wang
f6b10209b9 virtio-net: switch to use build_skb() for small buffer
This patch switch to use build_skb() for small buffer which can have
better performance for both TCP and XDP (since we can work at page
before skb creation). It also remove lots of XDP codes since both
mergeable and small buffer use page frag during refill now.

                       Before   | After
XDP_DROP(xdp1) 64B  :  11.1Mpps | 14.4Mpps

Tested with xdp1/xdp2/xdp_ip_tx_tunnel and netperf.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 12:24:52 -05:00
Paolo Abeni
ca4ef4574f ip: fix IP_CHECKSUM handling
The skbs processed by ip_cmsg_recv() are not guaranteed to
be linear e.g. when sending UDP packets over loopback with
MSGMORE.
Using csum_partial() on [potentially] the whole skb len
is dangerous; instead be on the safe side and use skb_checksum().

Thanks to syzkaller team to detect the issue and provide the
reproducer.

v1 -> v2:
 - move the variable declaration in a tighter scope

Fixes: ad6f939ab1 ("ip: Add offset parameter to ip_cmsg_recv")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 12:23:53 -05:00
Roopa Prabhu
8dcd81a993 vxlan: remove unused variable saddr in neigh_reduce
silences the below warning:
    drivers/net/vxlan.c: In function ‘neigh_reduce’:
    drivers/net/vxlan.c:1599:25: warning: variable ‘saddr’ set but not used
    [-Wunused-but-set-variable]

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 12:19:21 -05:00
Roopa Prabhu
8bcdc4f3a2 vxlan: add changelink support
This patch adds changelink rtnl op support for vxlan netdevs.
code changes involve:
    - refactor vxlan_newlink into vxlan_nl2conf to be
    used by vxlan_newlink and vxlan_changelink
    - vxlan_nl2conf and vxlan_dev_configure take a
    changelink argument to isolate changelink checks
    and updates.
    - Allow changing only a few attributes:
        - return -EOPNOTSUPP for attributes that cannot
        be changed for now. Incremental patches can
        make the non-supported one available in the future
        if needed.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 12:19:21 -05:00
H Hartley Sweeten
5594e88a44 ARM: ep93xx: ts72xx: allow rtc-m48t86 to manage its own resources
The rtc-m48t86 driver can now handle its own resources and do the
read/write operations internally.

Pass the necessary resources to the driver and remove the m48t86_ops
platform data.

Remove the, then unnecessary, static remapping for the registers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-02-21 18:18:52 +01:00
Tobias Klauser
d1892e4ec9 rtnl: simplify error return path in rtnl_create_link()
There is only one possible error path which reaches the err label, so
return ERR_PTR(-ENOMEM) directly if alloc_netdev_mqs() fails. This also
allows to omit the err variable.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-21 12:17:43 -05:00
H Hartley Sweeten
3ea07127d9 rtc: m48t86: verify that the RTC is actually present
The RTC is an optional feature at purchase time on some Technologic
Systems boards. Verify that it actually exists by checking if the
last two bytes of the NVRAM can be changed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-02-21 18:16:31 +01:00
Shawn Guo
54d82e0f2d drm: qxl: use vblank hooks in struct drm_crtc_funcs
The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers.  For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-16-git-send-email-shawnguo@kernel.org
2017-02-21 11:17:55 -05:00
Shawn Guo
a5073a5b7a drm: mediatek: use vblank hooks in struct drm_crtc_funcs
The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers.  For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-14-git-send-email-shawnguo@kernel.org
2017-02-21 11:17:54 -05:00
Shawn Guo
d4f6750f9b drm: kirin: use vblank hooks in struct drm_crtc_funcs
The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers.  For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.

Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-12-git-send-email-shawnguo@kernel.org
2017-02-21 11:17:45 -05:00
Mike Leach
7e6a69ee95 arm64: dts: juno: update definition for programmable replicator
Juno platforms have a programmable replicator splitting the trace output
to TPIU and ETR. Currently this is not being programmed as it is being
treated as a none-programmable replicator - which is the default
operational mode for these devices. The TPIU in the system is enabled by
default, and this combination is causing back-pressure in the trace
system resulting in overflows at the source.

Replaces the existing definition with one that defines the programmable
replicator, using the "qcom,coresight-replicator1x" driver that provides
the correct functionality for CoreSight programmable replicators.

Reviewed-and-Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2017-02-21 16:02:02 +00:00
Dan Carpenter
9761a2469d sunrpc: silence uninitialized variable warning
kstrtouint() can return a couple different error codes so the check for
"ret == -EINVAL" is wrong and static analysis tools correctly complain
that we can use "num" without initializing it.  It's not super harmful
because we check the bounds.  But it's also easy enough to fix.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2017-02-21 10:53:36 -05:00
Linus Torvalds
9763dd6f81 We've got eight GFS2 patches for this merge window:
1. Andy Price submitted a patch to make gfs2_write_full_page a
    static function.
 2. Dan Carpenter submitted a patch to fix a ERR_PTR thinko.
 
 I've also got a few patches, three of which fix bugs related to
 deleting very large files, which cause GFS2 to run out of
 journal space:
 
 3. The first one prevents GFS2 delete operation from requesting too
    much journal space.
 4. The second one fixes a problem whereby GFS2 can hang because it
    wasn't taking journal space demand into its calculations.
 5. The third one wakes up IO waiters when a flush is done to restart
    processes stuck waiting for journal space to become available.
 
 The other three patches are a performance improvement related to
 spin_lock contention between multiple writers:
 
 6. The "tr_touched" variable was switched to a flag to be more atomic
    and eliminate the possibility of some races.
 7. Function meta_lo_add was moved inline with its only caller to make
    the code more readable and efficient.
 8. Contention on the gfs2_log_lock spinlock was greatly reduced by
    avoiding the lock altogether in cases where we don't really need
    it: buffers that already appear in the appropriate metadata list
    for the journal. Many thanks to Steve Whitehouse for the ideas and
    principles behind these patches.
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Merge tag 'gfs2-4.11.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull GFS2 updates from Robert Peterson:
 "We've got eight GFS2 patches for this merge window:

   - Andy Price submitted a patch to make gfs2_write_full_page a static
     function.

   - Dan Carpenter submitted a patch to fix a ERR_PTR thinko.

  Three patches fix bugs related to deleting very large files, which
  cause GFS2 to run out of journal space:

   - The first one prevents GFS2 delete operation from requesting too
     much journal space.

   - The second one fixes a problem whereby GFS2 can hang because it
     wasn't taking journal space demand into its calculations.

   - The third one wakes up IO waiters when a flush is done to restart
     processes stuck waiting for journal space to become available.

  The final three patches are a performance improvement related to
  spin_lock contention between multiple writers:

   - The "tr_touched" variable was switched to a flag to be more atomic
     and eliminate the possibility of some races.

   - Function meta_lo_add was moved inline with its only caller to make
     the code more readable and efficient.

   - Contention on the gfs2_log_lock spinlock was greatly reduced by
     avoiding the lock altogether in cases where we don't really need
     it: buffers that already appear in the appropriate metadata list
     for the journal. Many thanks to Steve Whitehouse for the ideas and
     principles behind these patches"

* tag 'gfs2-4.11.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Make gfs2_write_full_page static
  GFS2: Reduce contention on gfs2_log_lock
  GFS2: Inline function meta_lo_add
  GFS2: Switch tr_touched to flag in transaction
  GFS2: Wake up io waiters whenever a flush is done
  GFS2: Made logd daemon take into account log demand
  GFS2: Limit number of transaction blocks requested for truncates
  GFS2: Fix reference to ERR_PTR in gfs2_glock_iter_next
2017-02-21 07:46:34 -08:00
Vinod Koul
1ad651154b Merge branch 'topic/zx' into for-linus 2017-02-21 21:14:35 +05:30
Vinod Koul
8a3ec58382 Merge branch 'topic/stm32-dma' into for-linus 2017-02-21 21:14:27 +05:30
Vinod Koul
25036f2a73 Merge branch 'topic/ste' into for-linus 2017-02-21 21:14:07 +05:30
Linus Torvalds
70fcf5c339 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes and cleanups from Jan Kara:
 "Several small UDF fixes and cleanups and a small cleanup of fanotify
  code"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fanotify: simplify the code of fanotify_merge
  udf: simplify udf_ioctl()
  udf: fix ioctl errors
  udf: allow implicit blocksize specification during mount
  udf: check partition reference in udf_read_inode()
  udf: atomically read inode size
  udf: merge module informations in super.c
  udf: remove next_epos from udf_update_extent_cache()
  udf: Factor out trimming of crtime
  udf: remove empty condition
  udf: remove unneeded line break
  udf: merge bh free
  udf: use pointer for kernel_long_ad argument
  udf: use __packed instead of __attribute__ ((packed))
  udf: Make stat on symlink report symlink length as st_size
  fs/udf: make #ifdef UDF_PREALLOCATE unconditional
  fs: udf: Replace CURRENT_TIME with current_time()
2017-02-21 07:44:03 -08:00
Vinod Koul
e4e48c47d1 Merge branch 'topic/intel' into for-linus 2017-02-21 21:13:57 +05:30
Christoph Hellwig
783112f740 nfsd: special case truncates some more
Both the NFS protocols and the Linux VFS use a setattr operation with a
bitmap of attributes to set to set various file attributes including the
file size and the uid/gid.

The Linux syscalls never mix size updates with unrelated updates like
the uid/gid, and some file systems like XFS and GFS2 rely on the fact
that truncates don't update random other attributes, and many other file
systems handle the case but do not update the other attributes in the
same transaction.  NFSD on the other hand passes the attributes it gets
on the wire more or less directly through to the VFS, leading to updates
the file systems don't expect.  XFS at least has an assert on the
allowed attributes, which caught an unusual NFS client setting the size
and group at the same time.

To handle this issue properly this splits the notify_change call in
nfsd_setattr into two separate ones.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Tested-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2017-02-21 10:13:37 -05:00
Jaehoon Chung
e7cd7ef58e PCI: exynos: Support the PHY generic framework
Switch the pci-exynos driver to generic PHY framework.  At the same time
backward compatibility is preserved: Warning will be printed for old DTB.

Refer to the binding file:
- Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
2017-02-21 07:48:47 -06:00
Jaehoon Chung
34f80c7ddf Documentation: binding: Modify the exynos5440 PCIe binding
According to using PHY framework, updates the exynos5440-pcie binding.  For
maintaining backward compatibility, leaves the current dt-binding.  (It
should be deprecated.)

Recommends to use the PHY Framework and "config" property to follow the
designware-pcie binding.  If you use the old way, can see "missing *config*
reg space" message.  Because the getting configuration space address from
range is old way.

NOTE: When use the "config" property, first name of 'reg-names' must be set
to "elbi".  Otherwise driver can't maintain the backward capability.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
2017-02-21 07:48:44 -06:00
Jaehoon Chung
cf0adb8e28 phy: phy-exynos-pcie: Add support for Exynos PCIe PHY
Add support for Generic PHY framework about Exynos SoCs.  Current Exynos
PCIe driver doesn't use the PHY framework, which makes it difficult to
upstream the other Exynos variants because of different PHY registers.

Move the codes relevant to PHY from Exnyos PCIe driver to PHY Exynos PCIe
driver.

[bhelgaas: depend on "OF && (ARCH_EXYNOS || COMPILE_TEST)", update
copyright year, both per Vivek]
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Jingoo Han <jingoohan1@gmail.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-02-21 07:48:42 -06:00
Jaehoon Chung
ad8ec41afa Documentation: samsung-phy: Add exynos-pcie-phy binding
Add the exynos-pcie-phy binding for Exynos PCIe PHY.  This is for using
generic PHY framework.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
2017-02-21 07:48:40 -06:00
Jani Nikula
15f080f08d drm/edid: respect connector force for drm_get_edid ddc probe
Skip DDC probe for forced connector status. Don't try to read the EDID
if the connector is forced off. Skipping probe for forced on connectors
will make more sense when drm_do_get_edid() will handle override and
firmware EDIDs.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1487344854-18777-4-git-send-email-jani.nikula@intel.com
2017-02-21 15:43:04 +02:00
Jani Nikula
e9bd0b84f4 drm: do not debug log about missing CEA extensions on NULL edid
Make the drm_edid_to_eld() function useful for resetting, not just
setting, the ELD and HDMI VSDB data, without debug warnings about
missing CEA extensions.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1487344854-18777-3-git-send-email-jani.nikula@intel.com
2017-02-21 15:42:16 +02:00
Jani Nikula
07c2b84b99 drm: move edid property update and add modes out of edid firmware loader
Make the firmware loader more generic and generally useful.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1487344854-18777-2-git-send-email-jani.nikula@intel.com
2017-02-21 15:41:24 +02:00
Linus Walleij
3498d8694d gpio: reintroduce devm_get_gpiod_from_child()
We need to keep this API around for the merge window to avoid
nasty build problems in the merges.

Cc: Lee Jones <lee.jones@linaro.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-02-21 14:19:45 +01:00
Tvrtko Ursulin
99c181a0fa drm/i915/tracepoints: Add hw_id to context tracepoints
It is useful to provide this info to match the one provided
in the request tracepoints.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170221091350.14605-1-tvrtko.ursulin@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-21 13:18:30 +00:00
Tvrtko Ursulin
d7d96833f2 drm/i915/tracepoints: Add backend level request in and out tracepoints
Two new tracepoints placed at the call sites where requests are
actually passed to the GPU enable userspace to track engine
utilisation.

These tracepoints are only enabled when the
DRM_I915_LOW_LEVEL_TRACEPOINTS Kconfig option is enabled.

v2: Fix compilation with !CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS.

v3: Name global seqno consistently across tracepoints.

v4: Remove port info from request out tracepoint. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-21 13:18:25 +00:00
Tvrtko Ursulin
dffabc8f4e drm/i915/tracepoints: Rename i915_gem_request_notify
i915_gem_ring_notify is more appropriate since we do not have
the request information at this point, but it is simply a
signal from the engine that some request has been completed.

v2:
  * Always trace and log if there were any waiters.
  * Rename to intel_engine_notify. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-21 13:18:19 +00:00
Tvrtko Ursulin
354d036fcf drm/i915/tracepoints: Add request submit and execute tracepoints
These new tracepoints are emitted once the request is ready to
be submitted to the GPU and once the request is about to
be submitted to the GPU, respectively.

Former condition triggers as soon as all the fences and
dependencies have been resolved, and the latter once the
backend is about to submit it to the GPU.

New tracepoint are enabled via the new
DRM_I915_LOW_LEVEL_TRACEPOINTS Kconfig option which is disabled
by default to alleviate the performance impact concerns.

v2: Move execute tracepoint to __i915_gem_request_submit.
    (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-21 13:18:14 +00:00
Tvrtko Ursulin
90aa412d50 drm/i915/tracepoints: Remove unused i915_gem_request_complete
Tracepoint is not used and won't be suitable for its replacement.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-21 13:18:08 +00:00
Tvrtko Ursulin
9369250298 drm/i915/tracepoints: Tidy i915_gem_request_wait_begin
Provide the same information as the other request event classes.

v2: Pass in flags so we can properly report the blocking status.
    (Chris Wilson)

v3: Log hex with 0x prefix for clarity.

v4: Derive blocking status from flags. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-21 13:18:04 +00:00