The commit d931589c01 ("drm/exynos: remove DRM_EXYNOS_GEM_MAP_OFFSET
ioctl") removed it same with the ioctl that this patch adds. The reason
that removed DRM_EXYNOS_GEM_MAP_OFFSET was we could use
DRM_IOCTL_MODE_MAP_DUMB. Both did exactly same thing.
Now we again will revive it as DRM_EXYNOS_GEM_MAP because of render
node. DRM_IOCTL_MODE_MAP_DUMB isn't permitted in render node.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Pull media fix from Mauro Carvalho Chehab:
"One last time fix: It adds a code that prevents some media tools like
media-ctl to hide some entities that have their IDs out of the range
expected by those apps"
* tag 'media/v4.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] media-device: map new functions into old types for legacy API
The legacy media controller userspace API exposes entity types that
carry both type and function information. The new API replaces the type
with a function. It preserves backward compatibility by defining legacy
functions for the existing types and using them in drivers.
This works fine, as long as newer entity functions won't be added.
Unfortunately, some tools, like media-ctl with --print-dot argument
rely on the now legacy MEDIA_ENT_T_V4L2_SUBDEV and MEDIA_ENT_T_DEVNODE
numeric ranges to identify what entities will be shown.
Also, if the entity doesn't match those ranges, it will ignore the
major/minor information on devnodes, and won't be getting the devnode
name via udev or sysfs.
As we're now adding devices outside the old range, the legacy ioctl
needs to map the new entity functions into a type at the old range,
or otherwise we'll have a regression.
Detected on all released media-ctl versions (e. g. versions <= 1.10).
Fix this by deriving the type from the function to emulate the legacy
API if the function isn't in the legacy functions range.
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Pull tracing fix from Steven Rostedt:
"I previously sent a fix that prevents all trace events from being
called if the current cpu is offline.
But I forgot that in 3.18, we added lockdep checks to test RCU usage
even when the event is disabled. Although there cannot be any bug
when a cpu is going offline, we now get false warnings triggered by
the added checks of the event being disabled.
I removed the check from the tracepoint code itself, and added it to
the condition section (which is "1" for 'no condition'). This way the
online cpu check will get checked in all the right locations"
* tag 'trace-fixes-v4.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix check for cpu online when event is disabled
To keep consistent with kfree, which tolerate ptr is NULL. We do this
because sometimes we may use goto statement, so that success and failure
case can share parts of the code. But unfortunately, dma_free_coherent
called with parameter cpu_addr is null will cause oops, such as showed
below:
Unable to handle kernel paging request at virtual address ffffffc020d3b2b8
pgd = ffffffc083a61000
[ffffffc020d3b2b8] *pgd=0000000000000000, *pud=0000000000000000
CPU: 4 PID: 1489 Comm: malloc_dma_1 Tainted: G O 4.1.12 #1
Hardware name: ARM64 (DT)
PC is at __dma_free_coherent.isra.10+0x74/0xc8
LR is at __dma_free+0x9c/0xb0
Process malloc_dma_1 (pid: 1489, stack limit = 0xffffffc0837fc020)
[...]
Call trace:
__dma_free_coherent.isra.10+0x74/0xc8
__dma_free+0x9c/0xb0
malloc_dma+0x104/0x158 [dma_alloc_coherent_mtmalloc]
kthread+0xec/0xfc
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Functions which the compiler has instrumented for ASAN place poison on
the stack shadow upon entry and remove this poison prior to returning.
In some cases (e.g. hotplug and idle), CPUs may exit the kernel a
number of levels deep in C code. If there are any instrumented
functions on this critical path, these will leave portions of the idle
thread stack shadow poisoned.
If a CPU returns to the kernel via a different path (e.g. a cold
entry), then depending on stack frame layout subsequent calls to
instrumented functions may use regions of the stack with stale poison,
resulting in (spurious) KASAN splats to the console.
Contemporary GCCs always add stack shadow poisoning when ASAN is
enabled, even when asked to not instrument a function [1], so we can't
simply annotate functions on the critical path to avoid poisoning.
Instead, this series explicitly removes any stale poison before it can
be hit. In the common hotplug case we clear the entire stack shadow in
common code, before a CPU is brought online.
On architectures which perform a cold return as part of cpu idle may
retain an architecture-specific amount of stack contents. To retain the
poison for this retained context, the arch code must call the core KASAN
code, passing a "watermark" stack pointer value beyond which shadow will
be cleared. Architectures which don't perform a cold return as part of
idle do not need any additional code.
This patch (of 3):
Functions which the compiler has instrumented for KASAN place poison on
the stack shadow upon entry and remove this poision prior to returning.
In some cases (e.g. hotplug and idle), CPUs may exit the kernel a number
of levels deep in C code. If there are any instrumented functions on this
critical path, these will leave portions of the stack shadow poisoned.
If a CPU returns to the kernel via a different path (e.g. a cold entry),
then depending on stack frame layout subsequent calls to instrumented
functions may use regions of the stack with stale poison, resulting in
(spurious) KASAN splats to the console.
To avoid this, we must clear stale poison from the stack prior to
instrumented functions being called. This patch adds functions to the
KASAN core for removing poison from (portions of) a task's stack. These
will be used by subsequent patches to avoid problems with hotplug and
idle.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Given we have uninitialized list_heads being passed to list_add() it
will always be the case that those uninitialized values randomly trigger
the poison value. Especially since a list_add() operation will seed the
stack with the poison value for later stack allocations to trip over.
For example, see these two false positive reports:
list_add attempted on force-poisoned entry
WARNING: at lib/list_debug.c:34
[..]
NIP [c00000000043c390] __list_add+0xb0/0x150
LR [c00000000043c38c] __list_add+0xac/0x150
Call Trace:
__list_add+0xac/0x150 (unreliable)
__down+0x4c/0xf8
down+0x68/0x70
xfs_buf_lock+0x4c/0x150 [xfs]
list_add attempted on force-poisoned entry(0000000000000500),
new->next == d0000000059ecdb0, new->prev == 0000000000000500
WARNING: at lib/list_debug.c:33
[..]
NIP [c00000000042db78] __list_add+0xa8/0x140
LR [c00000000042db74] __list_add+0xa4/0x140
Call Trace:
__list_add+0xa4/0x140 (unreliable)
rwsem_down_read_failed+0x6c/0x1a0
down_read+0x58/0x60
xfs_log_commit_cil+0x7c/0x600 [xfs]
Fixes: commit 5c2c2587b1 ("mm, dax, pmem: introduce {get|put}_dev_pagemap() for dax-gup")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Eryu Guan <eguan@redhat.com>
Tested-by: Eryu Guan <eguan@redhat.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit f37755490f ("tracepoints: Do not trace when cpu is offline") added
a check to make sure that tracepoints only get called when the cpu is
online, as it uses rcu_read_lock_sched() for protection.
Commit 3a630178fd ("tracing: generate RCU warnings even when tracepoints
are disabled") added lockdep checks (including rcu checks) for events that
are not enabled to catch possible RCU issues that would only be triggered if
a trace event was enabled. Commit f37755490f only stopped the warnings
when the trace event was enabled but did not prevent warnings if the trace
event was called when disabled.
To fix this, the cpu online check is moved to where the condition is added
to the trace event. This will place the cpu online check in all places that
it may be used now and in the future.
Cc: stable@vger.kernel.org # v3.18+
Fixes: f37755490f ("tracepoints: Do not trace when cpu is offline")
Fixes: 3a630178fd ("tracing: generate RCU warnings even when tracepoints are disabled")
Reported-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Pull sound fixes from Takashi Iwai:
"It's always an ambivalent feeling to send a large pull request at the
late stage like this, especially when most of patches came from me.
Anyway, this is a collection of lots of small fixes that slipped from
the previous pull request.
All fixes are about ASoC, and the majority of changes are corrections
of the wrong access types in ALSA ctl enum items. They are mostly
harmless on 32bit architectures, but actually buggy on 64bit. So we
addressed all these now in a shot. The rest are various small ASoC
driver fixes.
Among them, only two changes have been done to ASoC core, and both of
them are trivial. The rest are all device-specific. So overall, they
should be safe to apply"
* tag 'sound-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits)
ASoC: wm_adsp: Fix enum ctl accesses in a wrong type
ASoC: wm9081: Fix enum ctl accesses in a wrong type
ASoC: wm8996: Fix enum ctl accesses in a wrong type
ASoC: wm8994: Fix enum ctl accesses in a wrong type
ASoC: wm8985: Fix enum ctl accesses in a wrong type
ASoC: wm8983: Fix enum ctl accesses in a wrong type
ASoC: wm8958: Fix enum ctl accesses in a wrong type
ASoC: wm8904: Fix enum ctl accesses in a wrong type
ASoC: wm8753: Fix enum ctl accesses in a wrong type
ASoC: wl1273: Fix enum ctl accesses in a wrong type
ASoC: tlv320dac33: Fix enum ctl accesses in a wrong type
ASoC: max98095: Fix enum ctl accesses in a wrong type
ASoC: max98088: Fix enum ctl accesses in a wrong type
ASoC: ab8500: Fix enum ctl accesses in a wrong type
ASoC: da732x: Fix enum ctl accesses in a wrong type
ASoC: cs42l51: Fix enum ctl accesses in a wrong type
ASoC: intel: mfld: Fix enum ctl accesses in a wrong type
ASoC: omap: rx51: Fix enum ctl accesses in a wrong type
ASoC: omap: n810: Fix enum ctl accesses in a wrong type
ASoC: pxa: tosa: Fix enum ctl accesses in a wrong type
...
Pull networking fixes from David Miller:
1) Fix ordering of WEXT netlink messages so we don't see a newlink
after a dellink, from Johannes Berg.
2) Out of bounds access in minstrel_ht_set_best_prob_rage, from
Konstantin Khlebnikov.
3) Paging buffer memory leak in iwlwifi, from Matti Gottlieb.
4) Wrong units used to set initial TCP rto from cached metrics, also
from Konstantin Khlebnikov.
5) Fix stale IP options data in the SKB control block from leaking
through layers of encapsulation, from Bernie Harris.
6) Zero padding len miscalculated in bnxt_en, from Michael Chan.
7) Only CHECKSUM_PARTIAL packets should be passed down through GSO, fix
from Hannes Frederic Sowa.
8) Fix suspend/resume with JME networking devices, from Diego Violat
and Guo-Fu Tseng.
9) Checksums not validated properly in bridge multicast support due to
the placement of the SKB header pointers at the time of the check,
fix from Álvaro Fernández Rojas.
10) Fix hang/tiemout with r8169 if a stats fetch is done while the
device is runtime suspended. From Chun-Hao Lin.
11) The forwarding database netlink dump facilities don't track the
state of the dump properly, resulting in skipped/missed entries.
From Minoura Makoto.
12) Fix regression from a recent 3c59x bug fix, from Neil Horman.
13) Fix list corruption in bna driver, from Ivan Vecera.
14) Big endian machines crash on vlan add in bnx2x, fix from Michal
Schmidt.
15) Ethtool RSS configuration not propagated properly in mlx5 driver,
from Tariq Toukan.
16) Fix regression in PHY probing in stmmac driver, from Gabriel
Fernandez.
17) Fix SKB tailroom calculation in igmp/mld code, from Benjamin
Poirier.
18) A past change to skip empty routing headers in ipv6 extention header
parsing accidently caused fragment headers to not be matched any
longer. Fix from Florian Westphal.
19) eTSEC-106 erratum needs to be applied to more gianfar chips, from
Atsushi Nemoto.
20) Fix netdev reference after free via workqueues in usb networking
drivers, from Oliver Neukum and Bjørn Mork.
21) mdio->irq is now an array rather than a pointer to dynamic memory,
but several drivers were still trying to free it :-/ Fixes from
Colin Ian King.
22) act_ipt iptables action forgets to set the family field, thus LOG
netfilter targets don't work with it. Fix from Phil Sutter.
23) SKB leak in ibmveth when skb_linearize() fails, from Thomas Falcon.
24) pskb_may_pull() cannot be called with interrupts disabled, fix code
that tries to do this in vmxnet3 driver, from Neil Horman.
25) be2net driver leaks iomap'd memory on removal, fix from Douglas
Miller.
26) Forgotton RTNL mutex unlock in ppp_create_interface() error paths,
from Guillaume Nault.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (97 commits)
ppp: release rtnl mutex when interface creation fails
cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind
tcp: fix tcpi_segs_in after connection establishment
net: hns: fix the bug about loopback
jme: Fix device PM wakeup API usage
jme: Do not enable NIC WoL functions on S0
udp6: fix UDP/IPv6 encap resubmit path
be2net: Don't leak iomapped memory on removal.
vmxnet3: avoid calling pskb_may_pull with interrupts disabled
net: ethernet: Add missing MFD_SYSCON dependency on HAS_IOMEM
ibmveth: check return of skb_linearize in ibmveth_start_xmit
cdc_ncm: toggle altsetting to force reset before setup
usbnet: cleanup after bind() in probe()
mlxsw: pci: Correctly determine if descriptor queue is full
mlxsw: spectrum: Always decrement bridge's ref count
tipc: fix nullptr crash during subscription cancel
net: eth: altera: do not free array priv->mdio->irq
net/ethoc: do not free array priv->mdio->irq
net: sched: fix act_ipt for LOG target
asix: do not free array priv->mdio->irq
...
Pull ceph fix from Sage Weil:
"This is a final commit we missed to align the protocol compatibility
with the feature bits.
It decodes a few extra fields in two different messages and reports
EIO when they are used (not yet supported)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: initial CEPH_FEATURE_FS_FILE_LAYOUT_V2 support
Pull media fixes from Mauro Carvalho Chehab:
- some last time changes before we stablize the new entity function
integer numbers at uAPI
- probe: fix erroneous return value on i2c/adp1653 driver
- fix tx 5v detect regression on adv7604 driver
- fix missing unlock on error in vpfe_prepare_pipeline() on
davinci_vpfe driver
* tag 'media/v4.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] media: Sanitise the reserved fields of the G_TOPOLOGY IOCTL arguments
[media] media.h: postpone connectors entities
[media] media.h: use hex values for range offsets, move connectors base up.
[media] adv7604: fix tx 5v detect regression
[media] media.h: get rid of MEDIA_ENT_F_CONN_TEST
[media] [for,v4.5] media.h: increase the spacing between function ranges
[media] media: i2c/adp1653: probe: fix erroneous return value
[media] media: davinci_vpfe: fix missing unlock on error in vpfe_prepare_pipeline()
Pull libata fixes from Tejun Heo:
"Assorted fixes for libata drivers.
- Turns out HDIO_GET_32BIT ioctl was subtly broken all along.
- Recent update to ahci external port handling was incorrectly
marking hotpluggable ports as external making userland handle
devices connected to those ports incorrectly.
- ahci_xgene needs its own irq handler to work around a hardware
erratum. libahci updated to allow irq handler override.
- Misc driver specific updates"
* 'for-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: ahci: don't mark HotPlugCapable Ports as external/removable
ahci: Workaround for ThunderX Errata#22536
libata: Align ata_device's id on a cacheline
Adding Intel Lewisburg device IDs for SATA
pata-rb532-cf: get rid of the irq_to_gpio() call
libata: fix HDIO_GET_32BIT ioctl
ahci_xgene: Implement the workaround to fix the missing of the edge interrupt for the HOST_IRQ_STAT.
ata: Remove the AHCI_HFLAG_EDGE_IRQ support from libahci.
libahci: Implement the capability to override the generic ahci interrupt handler.
Pull block fixes from Jens Axboe:
"Round 2 of this. I cut back to the bare necessities, the patch is
still larger than it usually would be at this time, due to the number
of NVMe fixes in there. This pull request contains:
- The 4 core fixes from Ming, that fix both problems with exceeding
the virtual boundary limit in case of merging, and the gap checking
for cloned bio's.
- NVMe fixes from Keith and Christoph:
- Regression on larger user commands, causing problems with
reading log pages (for instance). This touches both NVMe,
and the block core since that is now generally utilized also
for these types of commands.
- Hot removal fixes.
- User exploitable issue with passthrough IO commands, if !length
is given, causing us to fault on writing to the zero
page.
- Fix for a hang under error conditions
- And finally, the current series regression for umount with cgroup
writeback, where the final flush would happen async and hence open
up window after umount where the device wasn't consistent. fsck
right after umount would show this. From Tejun"
* 'for-linus2' of git://git.kernel.dk/linux-block:
block: support large requests in blk_rq_map_user_iov
block: fix blk_rq_get_max_sectors for driver private requests
nvme: fix max_segments integer truncation
nvme: set queue limits for the admin queue
writeback: flush inode cgroup wb switches instead of pinning super_block
NVMe: Fix 0-length integrity payload
NVMe: Don't allow unsupported flags
NVMe: Move error handling to failed reset handler
NVMe: Simplify device reset failure
NVMe: Fix namespace removal deadlock
NVMe: Use IDA for namespace disk naming
NVMe: Don't unmap controller registers on reset
block: merge: get the 1st and last bvec via helpers
block: get the 1st and last bvec via helpers
block: check virt boundary in bio_will_gap()
block: bio: introduce helpers to get the 1st and last bvec
Pull tracing fix from Steven Rostedt:
"A feature was added in 4.3 that allowed users to filter trace points
on a tasks "comm" field. But this prevented filtering on a comm field
that is within a trace event (like sched_migrate_task).
When trying to filter on when a program migrated, this change
prevented the filtering of the sched_migrate_task.
To fix this, the event fields are examined first, and then the extra
fields like "comm" and "cpu" are examined. Also, instead of testing
to assign the comm filter function based on the field's name, the
generic comm field is given a new filter type (FILTER_COMM). When
this field is used to filter the type is checked. The same is done
for the cpu filter field.
Two new special filter types are added: "COMM" and "CPU". This allows
users to still filter the tasks comm for events that have "comm" as
one of their fields, in cases that users would like to filter
sched_migrate_task on the comm of the task that called the event, and
not the comm of the task that is being migrated"
* tag 'trace-fixes-v4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Do not have 'comm' filter override event 'comm' field
omapdrm changes for v4.6
* HDMI interlace output support
* DMAbuf import support
* Big refactoring leading to removal of legacy code
* Various non-critical fixes
* tag 'omapdrm-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (76 commits)
drm/omap: no need to select OMAP2_DSS
drm/omap: gem: Fix omap_gem_new() error path
drm/omap: remove -Werror from Makefile
drm/omap: remove dispc_ovl_check()
drm/omap: remove dss compat code
drm/omap: remove last uses of omap_overlay_manager
drm/omap: DSI: remove uses of omap_overlay_manager
drm/omap: VENC: remove uses of omap_overlay_manager
drm/omap: SDI: remove uses of omap_overlay_manager
drm/omap: HDMI4: remove uses of omap_overlay_manager
drm/omap: HDMI5: remove uses of omap_overlay_manager
drm/omap: DPI: remove uses of omap_overlay_manager
drm/omap: remove extra manager checks on disconnect
drm/omap: remove extra check in dpi and sdi
drm/omap: convert dss_mgr_unregister_framedone_handler to accept omap_channel
drm/omap: convert dss_mgr_register_framedone_handler to accept omap_channel
drm/omap: convert dss_mgr_start_update to accept omap_channel
drm/omap: convert dss_mgr_disable to accept omap_channel
drm/omap: convert dss_mgr_enable to accept omap_channel
drm/omap: convert dss_mgr_set_lcd_config to accept omap_channel
...
Add support for the format change of MClientReply/MclientCaps.
Also add code that denies access to inodes with pool_ns layouts.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Commit 9f61668073 "tracing: Allow triggers to filter for CPU ids and
process names" added a 'comm' filter that will filter events based on the
current tasks struct 'comm'. But this now hides the ability to filter events
that have a 'comm' field too. For example, sched_migrate_task trace event.
That has a 'comm' field of the task to be migrated.
echo 'comm == "bash"' > events/sched_migrate_task/filter
will now filter all sched_migrate_task events for tasks named "bash" that
migrates other tasks (in interrupt context), instead of seeing when "bash"
itself gets migrated.
This fix requires a couple of changes.
1) Change the look up order for filter predicates to look at the events
fields before looking at the generic filters.
2) Instead of basing the filter function off of the "comm" name, have the
generic "comm" filter have its own filter_type (FILTER_COMM). Test
against the type instead of the name to assign the filter function.
3) Add a new "COMM" filter that works just like "comm" but will filter based
on the current task, even if the trace event contains a "comm" field.
Do the same for "cpu" field, adding a FILTER_CPU and a filter "CPU".
Cc: stable@vger.kernel.org # v4.3+
Fixes: 9f61668073 "tracing: Allow triggers to filter for CPU ids and process names"
Reported-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Big ticket items are hdmi support for 8996 (aka snapdragon 820), and
adreno 430 support. Also one more small uapi addition to support
timestamp queries.
* 'msm-next' of git://people.freedesktop.org/~robclark/linux: (29 commits)
drm/msm: rename hdmi symbols
drm/msm/adreno: remove duplicate adreno_hw_init() call
drm/msm: add timestamp param
drm/msm: fix small typo
drm/msm: grab struct_mutex after allocating submit
drm/msm: reject submit ioctl if no gpu
drm/msm/adreno: print details in case of a protect fault interrupt
drm/msm/adreno: get CP_RPTR from register instead of shadow memory
drm/msm/adreno: add adreno430 power control
drm/msm/adreno: support for adreno 430.
drm/msm: update generated headers
drm/msm/dsi: fix definition of msm_dsi_pll_28nm_8960_init()
drm/msm/dsi: Parse DSI lanes via DT
drm/msm/dsi: Drop VDD regulator for MSM8916
drm/msm/dsi: Remove incorrect warning on host attach
drm/msm: Free fb helper resources in msm_unload
drm/msm/mdp: Detach iommu in mdp4_destroy
drm/msm: make iommu port names const'ier
drm/msm/mdp: Use atomic helper to set crtc property
dt-bindings: msm/hdmi: Add HDMI PHY bindings
...
Driver private request types should not get the artifical cap for the
FS requests. This is important to use the full device capabilities
for internal command or NVMe pass through commands.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Jeff Lien <Jeff.Lien@hgst.com>
Tested-by: Jeff Lien <Jeff.Lien@hgst.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Updated by me to use an explicit check for the one command type that
does support extended checking, instead of relying on the ordering
of the enum command values - as suggested by Keith.
Signed-off-by: Jens Axboe <axboe@fb.com>
If cgroup writeback is in use, inodes can be scheduled for
asynchronous wb switching. Before 5ff8eaac16 ("writeback: keep
superblock pinned during cgroup writeback association switches"), this
could race with umount leading to super_block being destroyed while
inodes are pinned for wb switching. 5ff8eaac16 fixed it by bumping
s_active while wb switches are in flight; however, this allowed
in-flight wb switches to make umounts asynchronous when the userland
expected synchronosity - e.g. fsck immediately following umount may
fail because the device is still busy.
This patch removes the problematic super_block pinning and instead
makes generic_shutdown_super() flush in-flight wb switches. wb
switches are now executed on a dedicated isw_wq so that they can be
flushed and isw_nr_in_flight keeps track of the number of in-flight wb
switches so that flushing can be avoided in most cases.
v2: Move cgroup_writeback_umount() further below and add MS_ACTIVE
check in inode_switch_wbs() as Jan an Al suggested.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Tahsin Erdogan <tahsin@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Link: http://lkml.kernel.org/g/CAAeU0aNCq7LGODvVGRU-oU_o-6enii5ey0p1c26D1ZzYwkDc5A@mail.gmail.com
Fixes: 5ff8eaac16 ("writeback: keep superblock pinned during cgroup writeback association switches")
Cc: stable@vger.kernel.org #v4.5
Reviewed-by: Jan Kara <jack@suse.cz>
Tested-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
In the following patch, the way for figuring out
the last bvec will be changed with a bit cost introduced,
so return immediately if the queue doesn't have virt
boundary limit. Actually most of devices have not
this limit.
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
The bio passed to bio_will_gap() may be fast cloned from upper
layer(dm, md, bcache, fs, ...), or from bio splitting in block
core.
Unfortunately bio_will_gap() just figures out the last bvec via
'bi_io_vec[prev->bi_vcnt - 1]' directly, and this way is obviously
wrong.
This patch introduces two helpers for getting the first and last
bvec of one bio for fixing the issue.
Cc: stable@vger.kernel.org
Reported-by: Sagi Grimberg <sagig@dev.mellanox.co.il>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
The argument structs are used in arrays for G_TOPOLOGY IOCTL. The
arguments themselves do not need to be aligned to a power of two, but
aligning them up to the largest basic type alignment (u64) on common ABIs
is a good thing to do.
The patch changes the size of the reserved fields to 5 or 6 u32's and
aligns the size of the struct to 8 bytes so we do no longer depend on the
compiler to perform the alignment.
While at it, add __attribute__ ((packed)) to these structs as well.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The current reserved_tailroom calculation fails to take hlen and tlen into
account.
skb:
[__hlen__|__data____________|__tlen___|__extra__]
^ ^
head skb_end_offset
In this representation, hlen + data + tlen is the size passed to alloc_skb.
"extra" is the extra space made available in __alloc_skb because of
rounding up by kmalloc. We can reorder the representation like so:
[__hlen__|__data____________|__extra__|__tlen___]
^ ^
head skb_end_offset
The maximum space available for ip headers and payload without
fragmentation is min(mtu, data + extra). Therefore,
reserved_tailroom
= data + extra + tlen - min(mtu, data + extra)
= skb_end_offset - hlen - min(mtu, skb_end_offset - hlen - tlen)
= skb_tailroom - min(mtu, skb_tailroom - tlen) ; after skb_reserve(hlen)
Compare the second line to the current expression:
reserved_tailroom = skb_end_offset - min(mtu, skb_end_offset)
and we can see that hlen and tlen are not taken into account.
The min() in the third line can be expanded into:
if mtu < skb_tailroom - tlen:
reserved_tailroom = skb_tailroom - mtu
else:
reserved_tailroom = tlen
Depending on hlen, tlen, mtu and the number of multicast address records,
the current code may output skbs that have less tailroom than
dev->needed_tailroom or it may output more skbs than needed because not all
space available is used.
Fixes: 4c672e4b ("ipv6: mld: fix add_grhead skb_over_panic for devs with large MTUs")
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch manages the case when you have an Ethernet MAC with
a "fixed link", and not connected to a normal MDIO-managed PHY device.
The test of phy_bus_name was not helpful because it was never affected
and replaced by the mdio test node.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The representation of external connections got some heated
discussions recently. As we're too close to the merge window,
let's not set those entities into a stone.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
We need this for GL_TIMESTAMP queries.
Note: currently only supported on a4xx.. a3xx doesn't have this
always-on counter. I think we could emulate it with the one CP
counter that is available, but for now it is of limited usefulness
on a3xx (since we can't seem to do time-elapsed queries in any sane
way with the existing firmware on a3xx, and if you are trying to do
profiling on a tiler you want time-elapsed). We can add that later
if it becomes useful.
Signed-off-by: Rob Clark <robdclark@gmail.com>
We want to remove the 'struct omap_overlay_manager' from
omap_dss_device. At the moment that field is used, among some other
uses, to see if the omap_dss_device is connected to an overlay manager.
To make it possible to remove the 'struct omap_overlay_manager' field,
this patch adds 'bool dispc_channel_connected' field to track the
connected-or-not status.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This patch continues the work to create private versions of the
omapdss.h header for omapdrm and omapfb. This one moves the dss_mgr_*
function declarations.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This patch continues the work to create private versions of the
omapdss.h header for omapdrm and omapfb. This one moves 'struct dss_mgr_ops'.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
omapdrm and omapfb still share the same include/video/omapdss.h. We need
to change that so that we can proceed with omapdrm work.
However, it's not trivial to make separate omapfb and omapdrm versions
of omapdss.h, as that file is also included in other places like arch
code, audio code and omap_vout code. So we'll do it piece by piece.
This patch makes private versions of all the dispc function declarations
that are in omapdss.h. For omapdrm we create a new file,
drivers/gpu/drm/omapdrm/dss/omapdss.h, which will contain headers meant
to be visible outside omapdss.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We need double-pixel mode (pixel repetition) for interlace modes. This
patch adds the necessary support to DISPC to output double-pixel mode.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
All devices using tpd12s015 driver are doing DT boot. No need of further
supporting the platform data. This patch removes support for platform
data.
Signed-off-by: Manisha Agrawal <manisha.agrawal@ti.com>
[tomi.valkeinen@ti.com: minor adjustments]
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Make the base offset hexadecimal to simplify debugging since the base
addresses are hex too.
The offsets for connectors is also changed to start after the 'reserved'
range 0x10000-0x2ffff.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
We should modify TIRs explicitly to apply the new RSS configuration.
The light ndo close/open calls do not "refresh" them.
Fixes: 2d75b2bc8a ('net/mlx5e: Add ethtool RSS configuration options')
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
imx-drm vblank IRQ control, fence support, and of endpoint helpers
- Add and make use of drm_of_active_endpoint helpers
- Silence a noisy dev_info into a dev_dbg
- Stop touching primary fb on pageflips
- Track flip state explicitly
- Keep GEM buffer objects referenced while scanout is active
- Implement fence sync by deferring flips to a workqueue for
dma-bufs with pending fences
- Actually disable vblank IRQs while they are not needed
* tag 'imx-drm-next-20160301' of git://git.pengutronix.de/git/pza/linux:
drm/imx: only enable vblank IRQs when needed
drm/imx: implement fence sync
drm/imx: keep GEM object referenced as long as scanout is active
drm/imx: track flip state explicitly
drm/imx: don't touch primary fb on pageflip
drm/imx: ipuv3 plane: Replace dev_info with dev_dbg if a plane's CRTC changes
gpu: ipu-v3: ipu-dc: Simplify display controller microcode setup
drm/rockchip: remove rockchip_drm_encoder_get_mux_id
drm/imx: remove imx_drm_encoder_get_mux_id
drm: add drm_of_encoder_active_endpoint helpers
Pull d_inode/d_flags race fix from Al Viro.
I love this fix. Not only does it fix the race in the dentry type
handling, it entirely gets rid of the nasty and subtle memory ordering
rules for d_type and d_inode, and replaces them with the basic dentry
locking rules (sequence numbers under RCU, d_lock elsewhere).
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
use ->d_seq to get coherency between ->d_inode and ->d_flags
User API structs should not use types which size/alignment/padding depends
on architecture. The patch fixes it for all structures except
drm_exynos_g2d_userptr, as g2d related stuff seems to be more complicated
and will be reviewed/adjusted later.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Platform data structures are not used for long time so the whole header
file can be safely removed.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
struct exynos_drm_panel_info is not used anymore, except exynos_dp,
which can integrate useful fields directly into its context.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
- lots and lots of fbc work from Paulo
- max pixel clock checks from Mika Kahola
- prep work for nv12 offset handling from Ville
- piles of small fixes and refactorings all around
* tag 'drm-intel-next-2016-02-14' of git://anongit.freedesktop.org/drm-intel: (113 commits)
drm/i915: Update DRIVER_DATE to 20160214
drm/i915: edp resume/On time optimization.
agp/intel-gtt: Only register fake agp driver for gen1
drm/i915: TV pixel clock check
drm/i915: CRT pixel clock check
drm/i915: SDVO pixel clock check
drm/i915: DisplayPort-MST pixel clock check
drm/i915: HDMI pixel clock check
drm/i915: DisplayPort pixel clock check
drm/i915: check that rpm ref is held when accessing ringbuf in stolen mem
drm/i915: fix error path in intel_setup_gmbus()
drm/i915: Stop depending upon CONFIG_AGP_INTEL
agp/intel-gtt: Don't leak the scratch page
drm/i915: Capture PCI revision and subsytem details in error state
drm/i915: fix context/engine cleanup order
drm/i915: Handle PipeC fused off on IVB/HSW/BDW
drm/i915/skl: Fix typo in DPLL_CFGCR1 definition
drm/i915: Skip DDI PLL selection for DSI
drm/i915/skl: Explicitly check for eDP in skl_ddi_pll_select()
drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
...
Games with ordering and barriers are way too brittle. Just
bump ->d_seq before and after updating ->d_inode and ->d_flags
type bits, so that verifying ->d_seq would guarantee they are
coherent.
Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
