Do put_device() if device_add() fails.
[ bp: do device_del() for the successfully created devices in
edac_create_csrow_objects(), on the unwind path. ]
Signed-off-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20190427214925.GE16338@kroah.com
In edac_create_csrow_object(), the reference to the object is not
released when adding the device to the device hierarchy fails
(device_add()). This may result in a memory leak.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/1555554438-103953-1-git-send-email-bianpan2016@163.com
Now that the panel probe/setup is in the modeset path, we can call
dsi_manager_setup_encoder() in a common place for both internal and
external bridge setups.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-10-sean@poorly.run
Since deferred probe from the modeset init path now works, we can move
the panel initialization from detect() into connector init. This
avoids doing work in detect() and hopefully will result in a more
deterministic boot sequence between devices with a dsi panel, and those
with an external bridge.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-9-sean@poorly.run
It's a bit dangerous to store the flags in msm_dsi since there's no way to
tell when they're populated. Fortunately the only place that uses them
is the same place that fills them. So just use a local variable and
delete the struct member.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-5-sean@poorly.run
add_display_components() calls of_platform_populate, and we depopluate
on pdev remove, but not when probe fails. So if we get a probe deferral
in one of the components, we won't depopulate the platform. This causes
the core to keep references to devices which should be destroyed, which
causes issues when those same devices try to re-initialize on the next
probe attempt.
I think this is the reason we had issues with the gmu's device-managed
resources on deferral (worked around in commit 94e3a17f33a5).
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-3-sean@poorly.run
The 10nm pll driver didn't have any failure-path cleanup in register,
and the destroy function didn't unregister any of the hardware. This
patch adds both.
The reason things haven't been blowing up horribly is that msm_drv has a
reference count issue that keeps devices alive, so the destroy function
was never called. That will be fixed in a follow-up patch.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-1-sean@poorly.run
Fix the error paths in _dpu_kms_mmu_init() to properly
clean up the iommu domain and not call _dpu_kms_mmu_destroy() when
things are only partially setup.
Reviewed-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190617200405.131843-2-sean@poorly.run
Unlike the legacy I/O path, scsi-mq preallocates a large array to hold
the scatterlist for each request. This static allocation can consume
substantial amounts of memory on modern controllers which support a
large number of concurrently outstanding requests.
To facilitate a switch to a smaller static allocation combined with a
dynamic allocation for requests that need it, we need to make sure all
SCSI drivers handle chained scatterlists correctly.
Convert remaining drivers that directly dereference the scatterlist
array to using the iterator functions.
[mkp: clarified commit message]
Reviewed by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Unlike the legacy I/O path, scsi-mq preallocates a large array to hold
the scatterlist for each request. This static allocation can consume
substantial amounts of memory on modern controllers which support a
large number of concurrently outstanding requests.
To facilitate a switch to a smaller static allocation combined with a
dynamic allocation for requests that need it, we need to make sure all
SCSI drivers handle chained scatterlists correctly.
Convert remaining drivers that directly dereference the scatterlist
array to using the iterator functions.
[mkp: clarified commit message]
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Unlike the legacy I/O path, scsi-mq preallocates a large array to hold
the scatterlist for each request. This static allocation can consume
substantial amounts of memory on modern controllers which support a
large number of concurrently outstanding requests.
To facilitate a switch to a smaller static allocation combined with a
dynamic allocation for requests that need it, we need to make sure all
SCSI drivers handle chained scatterlists correctly.
Convert remaining drivers that directly dereference the scatterlist
array to using the iterator functions.
[mkp: clarified commit message]
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
All callers of destroy WQ are always success and there is no need
to check their return value, so convert destroy_wq to be void.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Since commit 79ffac8599 ("drm/i915: Invert the GEM wakeref
hierarchy"), the request creation itself took responsibility for
managing the engine/GT wakerefs and so we can remove the redundant grabs
in our selftests.
References: 79ffac8599 ("drm/i915: Invert the GEM wakeref hierarchy")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190620102432.31580-1-chris@chris-wilson.co.uk
Our intel_rings are always flushed as they are continually used to submit
commands to the GPU, and so do not need to be flushed on unpinning. This
avoids pulling in the flush_ggtt_writes locking into our context
unpin, which we want to allow from atomic context (for simplicity).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619203504.4220-1-chris@chris-wilson.co.uk
There have been cases reported where a history buffer size of 8 was
not enough to resolve conflict overlaps. Increase the buffer to and
get rid of the size element which is currently just storing the
constant WB_HISTORY_SIZE.
Signed-off-by: John Johansen <john.johansen@canonical.com>
After removing preempt_disable() from get_buffers() it is possible to
replace a few GFP_ATOMIC allocations with GFP_KERNEL.
Replace GFP_ATOMIC allocations with GFP_KERNEL where the context looks
to bee preepmtible.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: John Johansen <john.johansen@canonical.com>
The get_buffers() macro may provide one or two buffers to the caller.
Those buffers are pre-allocated on init for each CPU. By default it
allocates
2* 2 * MAX_PATH * POSSIBLE_CPU
which equals 64KiB on a system with 4 CPUs or 1MiB with 64 CPUs and so
on.
Replace the per-CPU buffers with a common memory pool which is shared
across all CPUs. The pool grows on demand and never shrinks. The pool
starts with two (UP) or four (SMP) elements. By using this pool it is
possible to request a buffer and keeping preemption enabled which avoids
the hack in profile_transition().
It has been pointed out by Tetsuo Handa that GFP_KERNEL allocations for
small amount of memory do not fail. In order not to have an endless
retry, __GFP_RETRY_MAYFAIL is passed (so the memory allocation is not
repeated until success) and retried once hoping that in the meantime a
buffer has been returned to the pool. Since now NULL is possible all
allocation paths check the buffer pointer and return -ENOMEM on failure.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: John Johansen <john.johansen@canonical.com>
This patch fixes the sparse warning:
warning: cast removes address space '<asn:4>' of expression.
Signed-off-by: Bharath Vedartham <linux.bhar@gmail.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Merge tag 'for_v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull two misc vfs fixes from Jan Kara:
"One small quota fix fixing spurious EDQUOT errors and one fanotify fix
fixing a bug in the new fanotify FID reporting code"
* tag 'for_v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: update connector fsid cache on add mark
quota: fix a problem about transfer quota
As Gustavo said in other patches doing the same replace, we can now
use the new struct_size() helper to avoid leaving these open-coded and
prone to type mistake.
Signed-off-by: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Signed-off-by: David Howells <dhowells@redhat.com>
Add a couple of tracepoints to track callback management:
(1) afs_cb_miss - Logs when we were unable to apply a callback, either due
to the inode being discarded or due to a competing thread applying a
callback first.
(2) afs_cb_break - Logs when we attempted to clear the noted callback
promise, either due to the server explicitly breaking the callback,
the callback promise lapsing or a local event obsoleting it.
Signed-off-by: David Howells <dhowells@redhat.com>
Don't check that dentry->d_inode is valid in afs_unlink(). We should be
able to take that as given.
This caused Smatch to issue the following warning:
fs/afs/dir.c:1392 afs_unlink() error: we previously assumed 'vnode' could be null (see line 1375)
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
The setting of i_blocks, which is calculated from i_size, has got
accidentally misordered relative to the setting of i_size when initially
setting up an inode. Further, i_blocks isn't updated by afs_apply_status()
when the size is updated.
To fix this, break the i_size/i_blocks setting out into a helper function
and call it from both places.
Fixes: a58823ac45 ("afs: Fix application of status and callback to be under same lock")
Signed-off-by: David Howells <dhowells@redhat.com>
- Make switch to eMMC HS400 more robust for some controllers
- Add two SDIO func API to manage re-tuning constraints
- Prevent processing SDIO IRQs when the card is suspended
MMC host:
- sdhi: Disallow broken HS400 for M3-W ES1.2, RZ/G2M and V3H
- mtk-sd: Fixup support for SDIO IRQs
- sdhci-pci-o2micro: Fixup support for tuning
Wireless BRCMFMAC (SDIO):
- Deal with expected transmission errors related to the idle states
(handled by the Always-On-Subsystem or AOS) on the SDIO-based WiFi on
rk3288-veyron-minnie, rk3288-veyron-speedy and rk3288-veyron-mickey.
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Merge tag 'mmc-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"Here's quite a few MMC fixes intended for v5.2-rc6. This time it also
contains fixes for a WiFi driver, which device is attached to the SDIO
interface. Patches for the WiFi driver have been acked by the
corresponding maintainers.
Summary:
MMC core:
- Make switch to eMMC HS400 more robust for some controllers
- Add two SDIO func API to manage re-tuning constraints
- Prevent processing SDIO IRQs when the card is suspended
MMC host:
- sdhi: Disallow broken HS400 for M3-W ES1.2, RZ/G2M and V3H
- mtk-sd: Fixup support for SDIO IRQs
- sdhci-pci-o2micro: Fixup support for tuning
Wireless BRCMFMAC (SDIO):
- Deal with expected transmission errors related to the idle states
(handled by the Always-On-Subsystem or AOS) on the SDIO-based WiFi
on rk3288-veyron-minnie, rk3288-veyron-speedy and
rk3288-veyron-mickey"
* tag 'mmc-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: core: Prevent processing SDIO IRQs when the card is suspended
mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning
brcmfmac: sdio: Don't tune while the card is off
mmc: core: Add sdio_retune_hold_now() and sdio_retune_release()
brcmfmac: sdio: Disable auto-tuning around commands expected to fail
mmc: core: API to temporarily disable retuning for SDIO CRC errors
Revert "brcmfmac: disable command decode in sdio_aos"
mmc: mediatek: fix SDIO IRQ detection issue
mmc: mediatek: fix SDIO IRQ interrupt handle flow
mmc: core: complete HS400 before checking status
mmc: sdhi: disallow HS400 for M3-W ES1.2, RZ/G2M, and V3H
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Merge tag 'for-linus-20190620' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Three fixes that should go into this series.
One is a set of two patches from Christoph, fixing a page leak on same
page merges. Boiled down version of a bigger fix, but this one is more
appropriate for this late in the cycle (and easier to backport to
stable).
The last patch is for a divide error in MD, from Mariusz (via Song)"
* tag 'for-linus-20190620' of git://git.kernel.dk/linux-block:
md: fix for divide error in status_resync
block: fix page leak when merging to same page
block: return from __bio_try_merge_page if merging occured in the same page
hip08 can support up to 32768 wqes in one qp. currently if the wqe num
is larger than 16384, the driver will lead a calltrace as follows.
[21361.393725] Call trace:
[21361.398605] hns_roce_v2_modify_qp+0xbcc/0x1360 [hns_roce_hw_v2]
[21361.410627] hns_roce_modify_qp+0x1d8/0x2f8 [hns_roce]
[21361.420906] _ib_modify_qp+0x70/0x118
[21361.428222] ib_modify_qp+0x14/0x1c
[21361.435193] rt_ktest_modify_qp+0xb8/0x650 [rdma_test]
[21361.445472] exec_modify_qp_cmd+0x110/0x4d8 [rdma_test]
[21361.455924] rt_ktest_dispatch_cmd_3+0xa94/0x2edc [rdma_test]
[21361.467422] rt_ktest_dispatch_cmd_2+0x9c/0x108 [rdma_test]
[21361.478570] rt_ktest_dispatch_cmd+0x138/0x904 [rdma_test]
[21361.489545] rt_ktest_dev_write+0x328/0x4b0 [rdma_test]
[21361.499998] __vfs_write+0x38/0x15c
[21361.506966] vfs_write+0xa8/0x1a0
[21361.513586] ksys_write+0x50/0xb0
[21361.520206] sys_write+0xc/0x14
[21361.526479] el0_svc_naked+0x30/0x34
[21361.533622] Code: 1ac10841 d37d7c22 0b000021 d37df021 (f86268c0)
[21361.545815] ---[ end trace e2a1feb2c3d7f13c ]---
When the wqe num is larger than 16384, hns_roce_table_find will return an
invalid mtt, this will lead an kernel paging requet error if the driver try
to access it. It's the mtt design defect which can't support up to the max
wqe num of hip08.
This patch fixs it by replacing mtt with mtr for wqe.
Fixes: 926a01dc00 ("RDMA/hns: Add QP operations support for hip08 SoC")
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Currently, the code for getting umem and kmem buffers exist many files,
this patch adds a group interfaces to simplify the buffers getting flow.
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Currently, the MTT(memory translate table) design required a buffer
space must has the same hopnum, but the hip08 hw can support mixed
hopnum config in a buffer space.
This patch adds the MTR(memory translate region) design for supporting
mixed multihop.
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In Tegra210 AFI design has clamp value for the BIAS pad as 0, which keeps
the bias pad in non power down mode. This is leading to power consumption
of 2 mW in BIAS pad, even if the PCIe partition is powergated. To avoid
unnecessary power consumption, put PEX CLK & BIAS pads in deep power down
mode when PCIe partition is power gated.
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Tegra186 and Tegra30 have three PCIe root ports. AFI_PEX2_CTRL register
is defined for third root port. Offset of this register in Tegra186 is
different from Tegra30, so add the offset as part of SoC data structure.
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
PRSNT_MAP bit field is programmed to update the slot present status.
PRSNT_SENSE IRQ is triggered when this bit field is programmed, which is
not an error. Add a new if condition to trap PRSNT_SENSE code and print
it with debug log level.
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Cacheable upstream transactions are supported in Tegra20 and Tegra186
only.
AFI_CACHE_BAR_{0,1}_{ST,SZ} registers are available in Tegra20 to
support cacheable upstream transactions. In Tegra186, AFI_AXCACHE
register is defined instead of AFI_CACHE_BAR_{0,1}_{ST,SZ} to be in line
with its memory subsystem design.
Therefore, program AFI_CACHE_BAR_{0,1}_{ST,SZ} registers only for Tegra20.
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
This reverts commit ebc8c6f18322ad54275997a888ca1731d74b711f.
There are still missing corner cases with cursor interaction and these
fast plane updates on Picasso and Raven2 leading to endless PSTATE
warnings for typical desktop usage depending on the userspace.
This change should be reverted until these issues have been resolved.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110949
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <david.francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tonga sriov need to use smu to load firmware.
Remove sriov flag because the default return value is zero.
Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com>
Reviewed-by: Trigger Huang <Trigger.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
