Move the handling of the SNAPSHOT_SET_SWAP_AREA ioctl from the main
ioctl helper into a helper function.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Instead of the various open coded calls to set the NFS_INO_STALE bit
and call nfs_zap_caches(), consolidate them into a single function
nfs_set_inode_stale().
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
- Update the ACPICA code in the kernel to upstream revision 20200326
including:
* Fix for a typo in a comment field (Bob Moore).
* acpiExec namespace init file fixes (Bob Moore).
* Addition of NHLT to the known tables list (Cezary Rojewski).
* Conversion of PlatformCommChannel ASL keyword to PCC (Erik
Kaneda).
* acpiexec cleanup (Erik Kaneda).
* WSMT-related typo fix (Erik Kaneda).
* sprintf() utility function fix (John Levon).
* IVRS IVHD type 11h parsing implementation (Michał Żygowski).
* IVRS IVHD type 10h reserved field name fix (Michał Żygowski).
- Fix ACPI-related CPU hotplug deadlock on x86 (Qian Cai).
- Fix Intel Tiger Lake ACPI device IDs in several places (Gayatri
Kammela).
- Add ACPI backlight blacklist entry for Acer Aspire 5783z (Hans
de Goede).
- Fix documentation of the "acpi_backlight" kernel command line
switch (Randy Dunlap).
- Clean up the acpi_get_psd_map() CPPC library routine (Liguang
Zhang).
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Merge tag 'acpi-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"Additional ACPI updates.
These update the ACPICA code in the kernel to the 20200326 upstream
revision, fix an ACPI-related CPU hotplug deadlock on x86, update
Intel Tiger Lake device IDs in some places, add a new ACPI backlight
blacklist entry, update the "acpi_backlight" kernel command line
switch documentation and clean up a CPPC library routine.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20200326
including:
* Fix for a typo in a comment field (Bob Moore)
* acpiExec namespace init file fixes (Bob Moore)
* Addition of NHLT to the known tables list (Cezary Rojewski)
* Conversion of PlatformCommChannel ASL keyword to PCC (Erik
Kaneda)
* acpiexec cleanup (Erik Kaneda)
* WSMT-related typo fix (Erik Kaneda)
* sprintf() utility function fix (John Levon)
* IVRS IVHD type 11h parsing implementation (Michał Żygowski)
* IVRS IVHD type 10h reserved field name fix (Michał Żygowski)
- Fix ACPI-related CPU hotplug deadlock on x86 (Qian Cai)
- Fix Intel Tiger Lake ACPI device IDs in several places (Gayatri
Kammela)
- Add ACPI backlight blacklist entry for Acer Aspire 5783z (Hans de
Goede)
- Fix documentation of the "acpi_backlight" kernel command line
switch (Randy Dunlap)
- Clean up the acpi_get_psd_map() CPPC library routine (Liguang
Zhang)"
* tag 'acpi-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
x86: ACPI: fix CPU hotplug deadlock
thermal: int340x_thermal: fix: Update Tiger Lake ACPI device IDs
platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID
ACPI: Update Tiger Lake ACPI device IDs
ACPI: video: Use native backlight on Acer Aspire 5783z
ACPI: video: Docs update for "acpi_backlight" kernel parameter options
ACPICA: Update version 20200326
ACPICA: Fixes for acpiExec namespace init file
ACPICA: Add NHLT table signature
ACPICA: WSMT: Fix typo, no functional change
ACPICA: utilities: fix sprintf()
ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support
ACPICA: Change PlatformCommChannel ASL keyword to PCC
ACPICA: Fix IVRS IVHD type 10h reserved field name
ACPICA: Implement IVRS IVHD type 11h parsing
ACPICA: Fix a typo in a comment field
ACPI: CPPC: clean up acpi_get_psd_map()
__i915_gem_object_flush_map() takes a byte range, so feed it the written
bytes and do not mistake the u32 index as bytes!
Fixes: a679f58d05 ("drm/i915: Flush pages on acquisition")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: <stable@vger.kernel.org> # v5.2+
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200406114821.10949-1-chris@chris-wilson.co.uk
(cherry picked from commit 30c88a47f1)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
If the user passes in a readonly reloc[], by the time we notice we have
already committed to modifying the execobjects, or have indeed done so
already. Reporting the failure just compounds the issue as we have no
second pass to fall back to anymore.
"Be damned if you do, and damned if you don't."
Testcase: igt/gem_exec_reloc/readonly
Fixes: 7dc8f11437 ("drm/i915/gem: Drop relocation slowpath")
References: fddcd00a49 ("drm/i915: Force the slow path after a user-write error")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331162150.3635-1-chris@chris-wilson.co.uk
(cherry picked from commit 97a37c919f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
When we allocate space in the GGTT we may have to allocate a larger
region than will be populated by the object to accommodate fencing. Make
sure that this space beyond the end of the buffer points safely into
scratch space, in case the HW tries to access it anyway (e.g. fenced
access to the last tile row).
v2: Preemptively / conservatively guard gen6 ggtt as well.
Reported-by: Imre Deak <imre.deak@intel.com>
References: https://gitlab.freedesktop.org/drm/intel/-/issues/1554
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331152348.26946-1-chris@chris-wilson.co.uk
(cherry picked from commit 4d6c185908)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
DDI ports have its encoders initialized with INTEL_OUTPUT_DDI type and
later eDP ports that have the type changed to INTEL_OUTPUT_EDP.
But for all other DDI ports it can drive HDMI or DP depending on what
user connects to the ports.
ehl_get_combo_buf_trans() and tgl_get_combo_buf_trans() was checking
for INTEL_OUTPUT_DP that was never true, causing wrong vswing tables
being used.
So here replacing the INTEL_OUTPUT_DP checks by the valid output types
that this functions receives as parameters. HDMI cases will be
correctly handled as it do not use encoder->type, instead it calls the
functions with INTEL_OUTPUT_HDMI as type parameter and HDMI don't have
retraining.
v2:
changed INTEL_OUTPUT_DDI to INTEL_OUTPUT_EDP and INTEL_OUTPUT_HDMI
Fixes: bd3cf6f7ce ("drm/i915/dp/tgl+: Update combo phy vswing tables")
Cc: Clinton A Taylor <clinton.a.taylor@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200330210044.130510-1-jose.souza@intel.com
(cherry picked from commit 70988115ac)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
The DDI IO power well must not be enabled for a TypeC port in TBT mode,
ensure this during driver loading/system resume.
This gets rid of error messages like
[drm] *ERROR* power well DDI E TC2 IO state mismatch (refcount 1/enabled 0)
and avoids leaking the power ref when disabling the output.
Cc: <stable@vger.kernel.org> # v5.4+
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200330152244.11316-1-imre.deak@intel.com
(cherry picked from commit f77a2db27f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
macsec_upd_offload() gets the value of MACSEC_OFFLOAD_ATTR_TYPE
without checking its presence in the request message, and this causes
a NULL dereference. Fix it rejecting any configuration that does not
include this attribute.
Reported-and-tested-by: syzbot+7022ab7c383875c17eff@syzkaller.appspotmail.com
Fixes: dcb780fb27 ("net: macsec: add nla support for changing the offloading selection")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixed the punctuation and some typos.
Improved some sentences with minor changes.
No change of semantics or code.
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the bcm_sf2 was converted into a proper platform device driver and
used the new dsa_register_switch() interface, we would still be parsing
the legacy DSA node that contained all the port information since the
platform firmware has intentionally maintained backward and forward
compatibility to client programs. Ensure that we do parse the correct
node, which is "ports" per the revised DSA binding.
Fixes: d9338023fb ("net: dsa: bcm_sf2: Make it a real platform device driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The variable 'rc' is being assigned a value that is never read
and it is being updated later with a new value. The assignment
is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In function i2400m_bm_buf_alloc there is no need to use a variable
'result' to return -ENOMEM, just return the literal value. In the
function i2400m_setup the variable 'result' is initialized with a
value that is never read, it is a redundant assignment that can
be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix corner-case suspend-to-idle wakeup issue on systems where
the ACPI SCI is shared with another wakeup source (Hans de Goede).
- Add document describing system-wide suspend and resume code flows
to the admin guide (Rafael Wysocki).
- Add kernel command line option to set pm_debug_messages (Chen Yu).
- Choose schedutil as the preferred scaling governor by default on
ARM big.LITTLE systems and on x86 systems using the intel_pstate
driver in the passive mode (Linus Walleij, Rafael Wysocki).
- Drop racy and redundant checks from the PM core's device_prepare()
routine (Rafael Wysocki).
- Make resume from hibernation take the hibernation_restore() return
value into account (Dexuan Cui).
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Merge tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"Additional power management updates.
These fix a corner-case suspend-to-idle wakeup issue on systems where
the ACPI SCI is shared with another wakeup source, add a kernel
command line option to set pm_debug_messages via the kernel command
line, add a document desctibing system-wide suspend and resume code
flows, modify cpufreq Kconfig to choose schedutil as the preferred
governor by default in a couple of cases and do some assorted
cleanups.
Specifics:
- Fix corner-case suspend-to-idle wakeup issue on systems where the
ACPI SCI is shared with another wakeup source (Hans de Goede).
- Add document describing system-wide suspend and resume code flows
to the admin guide (Rafael Wysocki).
- Add kernel command line option to set pm_debug_messages (Chen Yu).
- Choose schedutil as the preferred scaling governor by default on
ARM big.LITTLE systems and on x86 systems using the intel_pstate
driver in the passive mode (Linus Walleij, Rafael Wysocki).
- Drop racy and redundant checks from the PM core's device_prepare()
routine (Rafael Wysocki).
- Make resume from hibernation take the hibernation_restore() return
value into account (Dexuan Cui)"
* tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
platform/x86: intel_int0002_vgpio: Use acpi_register_wakeup_handler()
ACPI: PM: Add acpi_[un]register_wakeup_handler()
Documentation: PM: sleep: Document system-wide suspend code flows
cpufreq: Select schedutil when using big.LITTLE
PM: sleep: Add pm_debug_messages kernel command line option
PM: sleep: core: Drop racy and redundant checks from device_prepare()
PM: hibernate: Propagate the return value of hibernation_restore()
cpufreq: intel_pstate: Select schedutil as the default governor
Ido Schimmel says:
====================
mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_{VLAN_MANGLE, PRIORITY}
Petr says:
The handlers for FLOW_ACTION_VLAN_MANGLE and FLOW_ACTION_PRIORITY end by
returning whatever the lower-level function that they call returns. If
there are more actions lined up after one of these actions, those are
never offloaded. Each of the two patches fixes one of those actions.
v2:
* Patch #1: Use valid SHA1 ID in Fixes line (Dave)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The handler for FLOW_ACTION_VLAN_MANGLE ends by returning whatever the
lower-level function that it calls returns. If there are more actions lined
up after this action, those are never offloaded. Fix by only bailing out
when the called function returns an error.
Fixes: a150201a70 ("mlxsw: spectrum: Add support for vlan modify TC action")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The handler for FLOW_ACTION_PRIORITY ends by returning whatever the
lower-level function that it calls returns. If there are more actions lined
up after this action, those are never offloaded. Fix by only bailing out
when the called function returns an error.
Fixes: 463957e3fb ("mlxsw: spectrum_flower: Offload FLOW_ACTION_PRIORITY")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There has been a number of reports that using SG/TSO on different chip
versions results in tx timeouts. However for a lot of people SG/TSO
works fine. Therefore disable both features by default, but allow users
to enable them. Use at own risk!
Fixes: 93681cd7d9 ("r8169: enable HW csum and TSO")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We were registering our slave MDIO bus with OF and doing so with
assigning the newly created slave_mii_bus of_node to the master MDIO bus
controller node. This is a bad thing to do for a number of reasons:
- we are completely lying about the slave MII bus is arranged and yet we
still want to control which MDIO devices it probes. It was attempted
before to play tricks with the bus_mask to perform that:
https://www.spinics.net/lists/netdev/msg429420.html but the approach
was rightfully rejected
- the device_node reference counting is messed up and we are effectively
doing a double probe on the devices we already probed using the
master, this messes up all resources reference counts (such as clocks)
The proper fix for this as indicated by David in his reply to the
thread above is to use a platform data style registration so as to
control exactly which devices we probe:
https://www.spinics.net/lists/netdev/msg430083.html
By using mdiobus_register(), our slave_mii_bus->phy_mask value is used
as intended, and all the PHY addresses that must be redirected towards
our slave MDIO bus is happening while other addresses get redirected
towards the master MDIO bus.
Fixes: 461cd1b03e ("net: dsa: bcm_sf2: Register our slave MDIO bus")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fix the loop iteration by not walking over the last
iteration. The cmpri compressing value exempt the last segment. As the
code shows the last iteration will be overwritten by cmpre value
handling which is for the last segment.
I think this doesn't end in any bufferoverflows because we work on worst
case temporary buffer sizes but it ends in not best compression settings
in some cases.
Fixes: 8610c7c6e3 ("net: ipv6: add support for rpl sr exthdr")
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When an XDP program is installed, tun_build_skb() grabs a reference to
the current page fragment page if the program returns XDP_REDIRECT or
XDP_TX. However, since tun_xdp_act() passes through negative return
values from the XDP program, it is possible to trigger the error path by
mistake and accidentally drop a reference to the fragments page without
taking one, leading to a spurious free. This is believed to be the cause
of some KASAN use-after-free reports from syzbot [1], although without a
reproducer it is not possible to confirm whether this patch fixes the
problem.
Ensure that we only drop a reference to the fragments page if the XDP
transmit or redirect operations actually fail.
[1] https://syzkaller.appspot.com/bug?id=e76a6af1be4acd727ff6bbca669833f98cbf5d95
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
CC: Eric Dumazet <edumazet@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Fixes: 8ae1aff0b3 ("tuntap: split out XDP logic")
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Add kproobes/uprobes support
- Add lockdep, rseq, gcov support
- Fixup init_fpu
- Fixup ftrace_modify deadlock
- Fixup speculative execution on IO area
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Merge tag 'csky-for-linus-5.7-rc1' of git://github.com/c-sky/csky-linux
Pull csky updates from Guo Ren:
- Add kproobes/uprobes support
- Add lockdep, rseq, gcov support
- Fixup init_fpu
- Fixup ftrace_modify deadlock
- Fixup speculative execution on IO area
* tag 'csky-for-linus-5.7-rc1' of git://github.com/c-sky/csky-linux:
csky: Fixup cpu speculative execution to IO area
csky: Add uprobes support
csky: Add kprobes supported
csky: Enable LOCKDEP_SUPPORT
csky: Enable the gcov function
csky: Fixup get wrong psr value from phyical reg
csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS
csky: Implement ftrace with regs
csky: Add support for restartable sequence
csky: Implement ptrace regs and stack API
csky: Fixup init_fpu compile warning with __init
The Medion E1239T uses the default jack-detect mode 3, but instead of
using an analog microphone it is using a DMIC on dmic-data-pin 1,
like other models following Intel's Brasswell's reference design.
This commit adds a DMI quirk pointing to the intel_braswell_platform_data
for this model.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200402185257.3355-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Merge tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"This implements the fanotify FAN_DIR_MODIFY event.
This event reports the name in a directory under which a change
happened and together with the directory filehandle and fstatat()
allows reliable and efficient implementation of directory
synchronization"
* tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: Fix the checks in fanotify_fsid_equal
fanotify: report name info for FAN_DIR_MODIFY event
fanotify: record name info for FAN_DIR_MODIFY event
fanotify: Drop fanotify_event_has_fid()
fanotify: prepare to report both parent and child fid's
fanotify: send FAN_DIR_MODIFY event flavor with dir inode and name
fanotify: divorce fanotify_path_event and fanotify_fid_event
fanotify: Store fanotify handles differently
fanotify: Simplify create_fd()
fanotify: fix merging marks masks with FAN_ONDIR
fanotify: merge duplicate events on parent and child
fsnotify: replace inode pointer with an object id
fsnotify: simplify arguments passing to fsnotify_parent()
fsnotify: use helpers to access data by data_type
fsnotify: funnel all dirent events through fsnotify_name()
fsnotify: factor helpers fsnotify_dentry() and fsnotify_file()
fsnotify: tidy up FS_ and FAN_ constants
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Merge tag 'for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext2/udf updates from Jan Kara:
"Cleanups and fixes for ext2 and one cleanup for udf"
* tag 'for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
ext2: fix empty body warnings when -Wextra is used
ext2: fix debug reference to ext2_xattr_cache
udf: udf_sb.h: Replace zero-length array with flexible-array member
ext2: xattr.h: Replace zero-length array with flexible-array member
ext2: Silence lockdep warning about reclaim under xattr_sem
- Fix read with O_NONBLOCK to allow incomplete read and return immediately
- Rest is just cleanup (indent, unused field in struct, extra semicolon)
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Merge tag '9p-for-5.7' of git://github.com/martinetd/linux
Pull 9p updates from Dominique Martinet:
"Not much new, but a few patches for this cycle:
- Fix read with O_NONBLOCK to allow incomplete read and return
immediately
- Rest is just cleanup (indent, unused field in struct, extra
semicolon)"
* tag '9p-for-5.7' of git://github.com/martinetd/linux:
net/9p: remove unused p9_req_t aux field
9p: read only once on O_NONBLOCK
9pnet: allow making incomplete read requests
9p: Remove unneeded semicolon
9p: Fix Kconfig indentation
Reflink should force the log out to disk if the filesystem was mounted
with wsync, the same as most other operations in xfs.
[Note: XFS_MOUNT_WSYNC is set when the admin mounts the filesystem
with either the 'wsync' or 'sync' mount options, which effectively means
that we're classifying reflink/dedupe as IO operations and making them
synchronous when required.]
Fixes: 3fc9f5e409 ("xfs: remove xfs_reflink_remap_range")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
[darrick: add more to the changelog]
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Create a new helper to force the log up to the last LSN touching an
inode.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
The fast path check in acpi_ec_add() is not incorrect, because in
fact acpi_device_hid(device) can be equal to ACPI_ECDT_HID only if
boot_ec is not NULL, but it may confuse static checkers, so change
it to explicitly check boot_ec upfront and use the slow path if
that pointer is NULL.
Link: https://lore.kernel.org/linux-acpi/20200406144217.GA68494@mwanda/
Fixes: 3d9b8dd832 ("ACPI: EC: Use fast path in acpi_ec_add() for DSDT boot EC")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull vfs pathwalk fix from Al Viro:
"Dumb braino in legitimize_path()..."
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix a braino in legitimize_path()
brown paperbag time... wrong order of arguments ended up confusing
the values to check dentry and mount_lock seqcounts against.
Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 2aa3847085 ("non-RCU analogue of the previous commit")
Tested-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acpica:
ACPICA: Update version 20200326
ACPICA: Fixes for acpiExec namespace init file
ACPICA: Add NHLT table signature
ACPICA: WSMT: Fix typo, no functional change
ACPICA: utilities: fix sprintf()
ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support
ACPICA: Change PlatformCommChannel ASL keyword to PCC
ACPICA: Fix IVRS IVHD type 10h reserved field name
ACPICA: Implement IVRS IVHD type 11h parsing
ACPICA: Fix a typo in a comment field
The MPMAN MPWIN895CL tablet almost fully works with out default settings.
The only problem is that it has only 1 speaker so any sounds only playing
on the right channel get lost.
Add a quirk for this model using the default settings + MONO_SPEAKER.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200405133726.24154-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The commit 0d6defc7e0 ("ASoC: stm32: sai: manage rebind issue")
converts some function calls to their non-devm equivalents. The
appropriate cleanup code was added to the remove function, but not
to the probe function. Add a call to snd_dmaengine_pcm_unregister
to compensate for the call to snd_dmaengine_pcm_register in case
of subsequent failure.
Fixes: commit 0d6defc7e0 ("ASoC: stm32: sai: manage rebind issue")
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Acked-by: Olivier Moysan <olivier.moysan@st.com>
Link: https://lore.kernel.org/r/1586099028-5104-1-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
* pm-sleep:
Documentation: PM: sleep: Document system-wide suspend code flows
PM: sleep: Add pm_debug_messages kernel command line option
PM: sleep: core: Drop racy and redundant checks from device_prepare()
PM: hibernate: Propagate the return value of hibernation_restore()
* pm-cpufreq:
cpufreq: Select schedutil when using big.LITTLE
cpufreq: intel_pstate: Select schedutil as the default governor
After commit f651c8b055 ("drm/virtio: factor out the sg_table from
virtio_gpu_object"), virtio_gpu_create_object allocates too small space
to fit everything in. It is because it allocates struct
virtio_gpu_object, but should allocate a newly added struct
virtio_gpu_object_shmem which has 2 more members.
So fix that by using correct type in virtio_gpu_create_object.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: http://patchwork.freedesktop.org/patch/msgid/20200319100421.16267-1-jslaby@suse.cz
Fixes: f651c8b055 ("drm/virtio: factor out the sg_table from virtio_gpu_object")
Cc: Gurchetan Singh <gurchetansingh@chromium.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 0666a8d7f6)
The common I/O layer delays the ADD uevent for subchannels and
delegates generating this uevent to the individual subchannel
drivers. The vfio-ccw I/O subchannel driver, however, did not
do that, and will not generate an ADD uevent for subchannels
that had not been bound to a different driver (or none at all,
which also triggers the uevent).
Generate the ADD uevent at the end of the probe function if
uevents were still suppressed for the device.
Message-Id: <20200327124503.9794-3-cohuck@redhat.com>
Fixes: 63f1934d56 ("vfio: ccw: basic implementation for vfio_ccw driver")
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
The common I/O layer delays the ADD uevent for subchannels and
delegates generating this uevent to the individual subchannel
drivers. The io_subchannel driver will do so when the associated
ccw_device has been registered -- but unconditionally, so more
ADD uevents will be generated if a subchannel has been unbound
from the io_subchannel driver and later rebound.
To fix this, only generate the ADD event if uevents were still
suppressed for the device.
Fixes: fa1a8c23eb ("s390: cio: Delay uevents for subchannels")
Message-Id: <20200327124503.9794-2-cohuck@redhat.com>
Reported-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Polling drivers in a configuration with 1 Input Queue currently keep
their DSCI armed all the way through the poll cycle, until
qdio_start_irq() clears it.
_Any_ intermittent QDIO interrupt delivered to tiqdio_thinint_handler()
will thus cause
1) the 'adapter_int' statistic to be incremented,
2) a call to tiqdio_call_inq_handlers() for this device, and then
3) the 'int_discarded' statistics to be incremented.
This causes overhead & complexity in the IRQ path, along with ambiguity
in the statistics.
On the other hand the device should be in IRQ avoidance mode during a
poll cycle, so there won't be a lot of DSCI ping-pong that this
micro-optimization could prevent.
So align the DSCI handling with what we already do for devices with
multiple Input Queues: clear it right away while processing the IRQ.
For the non-polling path this means that we no longer need to handle
the 1-queue case separately.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This is just prep work for a subsequent patch, no functional change.
For the non-polling path we can pull the code chunk in front of the
for-loop, since it only evaluates to true for a 1-queue configuration.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Upper-layer drivers allocate their SBALs by calling qdio_alloc_buffers()
for each individual queue. But when later passing the SBAL addresses to
qdio_establish(), they need to be in a single array of pointers.
So if the driver uses multiple Input or Output queues, it needs to
allocate a temporary array just to present all its SBAL pointers in this
layout.
This patch slightly changes the format of the QDIO initialization data,
so that drivers can pass a per-queue array where each element points to
a queue's SBAL array.
zfcp doesn't use multiple queues, so the impact there is trivial.
For qeth this brings a nice reduction in complexity, and removes
a page-sized allocation.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
In preparation for a subsequent patch, move the setup of init_data into
the only caller.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
All that qdio_allocate() actually uses from the init_data is the cdev,
and the number of Input and Output Queues. Have the driver pass those as
parameters, and defer the init_data processing into qdio_establish().
This includes writing per-device(!) trace entries, and most of the
sanity checks.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
If io_get_req() fails, it drops a ref. Then, awhile keeping @submitted
unmodified, io_submit_sqes() breaks the loop and puts @nr - @submitted
refs. For each submitted req a ref is dropped in io_put_req() and
friends. So, for @nr taken refs there will be
(@nr - @submitted + @submitted + 1) dropped.
Remove ctx refcounting from io_get_req(), that at the same time makes
it clearer.
Fixes: 2b85edfc0c ("io_uring: batch getting pcpu references")
Cc: stable@vger.kernel.org # v5.6
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The __SYSCALL macro's arguments are system call number,
system call entry name and number of arguments for the
system call.
Argument- nargs in __SYSCALL(nr, entry, nargs) is neither
calculated nor used anywhere. So it would be better to
keep the implementaion as __SYSCALL(nr, entry). This will
unifies the implementation with some other architetures
too.
Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Allow the alternative loop to accept multiple conditions when replacing
existing code, e.g.
ALTERNATIVE(ALT_COND_NO_SMP | ALT_COND_RUN_ON_QEMU, INSN_NOP)
Signed-off-by: Helge Deller <deller@gmx.de>
Core:
* Nothing
Drivers:
* at91-reset: cleanups, proper handling for sam9x60
* sc27xx, charger-manager: allow building as module
* sc27xx: add support to read current charge capacity
* axp288: more quirks for weird hardware
* misc. fixes
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Merge tag 'for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset changes from Sebastian Reichel:
"Core:
- Nothing
Drivers:
- at91-reset: cleanups, proper handling for sam9x60
- sc27xx, charger-manager: allow building as module
- sc27xx: add support to read current charge capacity
- axp288: more quirks for weird hardware
- misc fixes"
* tag 'for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (26 commits)
power: reset: sc27xx: Allow the SC27XX poweroff driver building into a module
power: reset: sc27xx: Change to use cpu_down()
power: reset: sc27xx: Power off the external subsystems' connection
power: twl4030: Use scnprintf() for avoiding potential buffer overflow
power: supply: bq27xxx_battery: Silence deferred-probe error
power: reset: at91-reset: handle nrst async for sam9x60
power: reset: at91-reset: get rid of at91_reset_data
power: reset: at91-reset: keep only one reset function
power: reset: at91-reset: make at91sam9g45_restart() generic
power: reset: at91-reset: introduce ramc_lpr to struct at91_reset
power: reset: at91-reset: use r4 as tmp argument
power: reset: at91-reset: introduce args member in at91_reset_data
power: reset: at91-reset: introduce struct at91_reset_data
power: reset: at91-reset: devm_kzalloc() for at91_reset data structure
power: reset: at91-reset: pass rstc base address to at91_reset_status()
power: reset: at91-reset: convert reset in pointer to struct at91_reset
power: reset: at91-reset: add notifier block to struct at91_reset
power: reset: at91-reset: add sclk to struct at91_reset
power: reset: at91-reset: add ramc_base[] to struct at91_reset
power: reset: at91-reset: introduce struct at91_reset
...
