Add the new cpu family ATOM_TREMONT_D to the cpu vunerability
whitelist. ATOM_TREMONT_D is not affected by X86_BUG_ITLB_MULTIHIT.
ATOM_TREMONT_D might have mitigations against other issues as well, but
only the ITLB multihit mitigation is confirmed at this point.
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Some processors may incur a machine check error possibly resulting in an
unrecoverable CPU lockup when an instruction fetch encounters a TLB
multi-hit in the instruction TLB. This can occur when the page size is
changed along with either the physical address or cache type. The relevant
erratum can be found here:
https://bugzilla.kernel.org/show_bug.cgi?id=205195
There are other processors affected for which the erratum does not fully
disclose the impact.
This issue affects both bare-metal x86 page tables and EPT.
It can be mitigated by either eliminating the use of large pages or by
using careful TLB invalidations when changing the page size in the page
tables.
Just like Spectre, Meltdown, L1TF and MDS, a new bit has been allocated in
MSR_IA32_ARCH_CAPABILITIES (PSCHANGE_MC_NO) and will be set on CPUs which
are mitigated against this issue.
Signed-off-by: Vineela Tummalapalli <vineela.tummalapalli@intel.com>
Co-developed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The following build warning occurred on powerpc 64-bit builds:
drivers/cpufreq/powernv-cpufreq.c: In function 'init_chip_info':
drivers/cpufreq/powernv-cpufreq.c:1070:1: warning: the frame size of
1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
This is with a cross-compiler based on gcc 8.1.0, which I got from:
https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/8.1.0/
The warning is due to putting 1024 bytes on the stack:
unsigned int chip[256];
...and it's also undesirable to have a hard limit on the number of
CPUs here.
Fix both problems by dynamically allocating based on num_possible_cpus,
as recommended by Michael Ellerman.
Fixes: 053819e0bf ("cpufreq: powernv: Handle throttling due to Pmax capping at chip level")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.10+ <stable@vger.kernel.org> # 4.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
One of the responsibility of the ->verify() callback is to make sure
that the policy's min frequency is <= max frequency as this isn't
guaranteed by the QoS framework which gave us those values.
Update the comment in cpufreq_set_policy() to clarify that.
Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Minor changes of the new comment ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Make dquot_get_state() gracefully handle a situation when there are no
quota files present even though quotas are enabled.
Signed-off-by: Jan Kara <jack@suse.cz>
Quota on and quota off are protected by s_umount semaphore held in
exclusive mode since commit 7d6cd73d33 "quota: Hold s_umount in
exclusive mode when enabling / disabling quotas". This makes it
impossible for dquot_disable() to race with other enabling or disabling
of quotas. Simplify the cleanup done by dquot_disable() based on this
fact and also remove some stale comments. As a bonus this cleanup makes
dquot_disable() properly handle a case when there are no quota inodes.
Signed-off-by: Jan Kara <jack@suse.cz>
The check for the mmap support via hw_support_mmap() function misses
the case where the device is with SNDRV_DMA_TYPE_DEV_UC, which should
have been treated equally as SNDRV_DMA_TYPE_DEV. Let's fix it.
Note that this bug doesn't hit any practical problem, because
SNDRV_DMA_TYPE_DEV_UC is used only for x86-specific drivers
(snd-hda-intel and snd-intel8x0) for the specific platforms that need
the non-cached buffers. And, on such platforms, hw_support_mmap()
already returns true in anyway. That's the reason I didn't put
Cc-to-stable mark here. This is only for any theoretical future
extension.
Fixes: 425da15970 ("ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_*")
Fixes: 42e748a0b3 ("ALSA: memalloc: Add non-cached buffer type")
Link: https://lore.kernel.org/r/20191104101115.27311-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Actual changes:
-# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
-CONFIG_CRYPTO_AEGIS128L=m
-CONFIG_CRYPTO_AEGIS256=m
-CONFIG_CRYPTO_MORUS1280=m
-CONFIG_CRYPTO_MORUS640=m
+CONFIG_DM_CLONE=m
+CONFIG_EROFS_FS=m
-# CONFIG_LCD_CLASS_DEVICE is not set
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20191001073539.4488-1-geert@linux-m68k.org
When the compiler decides not to inline the Chunky-to-Planar core
functions, the build fails with:
c2p_planar.c:(.text+0xd6): undefined reference to `c2p_unsupported'
c2p_planar.c:(.text+0x1dc): undefined reference to `c2p_unsupported'
c2p_iplan2.c:(.text+0xc4): undefined reference to `c2p_unsupported'
c2p_iplan2.c:(.text+0x150): undefined reference to `c2p_unsupported'
Fix this by marking the functions __always_inline.
While this could be triggered before by manually enabling both
CONFIG_OPTIMIZE_INLINING and CONFIG_CC_OPTIMIZE_FOR_SIZE, it was exposed
in the m68k defconfig by commit ac7c3e4ff4 ("compiler: enable
CONFIG_OPTIMIZE_INLINING forcibly").
Fixes: 9012d01166 ("compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING")
Reported-by: noreply@ellerman.id.au
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190927094708.11563-1-geert@linux-m68k.org
Currently all OSTM devices are called "ostm", also in kernel messages.
As there can be multiple instances in an SoC, this can confuse the user.
Hence construct a unique name from the DT node name, like is done for
platform devices.
On RSK+RZA1, the boot log changes like:
-clocksource: ostm: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 57352151442 ns
+clocksource: timer@fcfec000: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 57352151442 ns
sched_clock: 32 bits at 33MHz, resolution 30ns, wraps every 64440619504ns
-ostm: used for clocksource
-ostm: used for clock events
+/soc/timer@fcfec000: used for clocksource
+/soc/timer@fcfec400: used for clock events
...
-clocksource: Switched to clocksource ostm
+clocksource: Switched to clocksource timer@fcfec000
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191016144747.29538-5-geert+renesas@glider.be
If a hardware-specific driver does not provide a name, the timer-of core
falls back to device_node.name. Due to generic DT node naming policies,
that name is almost always "timer", and thus doesn't identify the actual
timer used.
Fix this by using device_node.full_name instead, which includes the unit
addrees.
Example impact on /proc/timer_list:
-Clock Event Device: timer
+Clock Event Device: timer@fcfec400
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191016144747.29538-3-geert+renesas@glider.be
Now dquot_enable() has only two internal callers and both of them just
need to update quota flags and don't need most of checks. Just drop
dquot_enable() and fold necessary functionality into the two calling
places.
Signed-off-by: Jan Kara <jack@suse.cz>
Use dquot_load_quota_inode from filesystems instead of dquot_enable().
In all three cases we want to load quota inode and never use the
function to update quota flags.
Signed-off-by: Jan Kara <jack@suse.cz>
Rename vfs_load_quota_inode() to dquot_load_quota_inode() to be
consistent with naming of other functions used for enabling quota
accounting from filesystems. Also export the function and add some
sanity checks to assure filesystems are calling the function properly.
Signed-off-by: Jan Kara <jack@suse.cz>
We already have quota inode loaded when resuming quotas. Use
vfs_load_quota() to avoid some pointless churn with the quota inode.
Signed-off-by: Jan Kara <jack@suse.cz>
Factor out setting up of quota inode and eventual error cleanup from
vfs_load_quota_inode(). This will simplify situation for filesystems
that don't have any quota inodes.
Signed-off-by: Jan Kara <jack@suse.cz>
Instances may have flags set as part of its data in which case the code
should not attempt to add it again otherwise it can cause duplication:
< HCI Command: LE Set Extended Advertising Data (0x08|0x0037) plen 35
Handle: 0x00
Operation: Complete extended advertising data (0x03)
Fragment preference: Minimize fragmentation (0x01)
Data length: 0x06
Flags: 0x04
BR/EDR Not Supported
Flags: 0x06
LE General Discoverable Mode
BR/EDR Not Supported
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
For Focusrite Saffire Pro i/o, the lowest 8 bits of register represents
configured source of sampling clock. The next lowest 8 bits represents
whether the configured source is actually detected or not just after
the register is changed for the source.
Current implementation evaluates whole the register to detect configured
source. This results in failure due to the next lowest 8 bits when the
source is connected in advance.
This commit fixes the bug.
Fixes: 25784ec2d0 ("ALSA: bebob: Add support for Focusrite Saffire/SaffirePro series")
Cc: <stable@vger.kernel.org> # v3.16+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20191102150920.20367-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
None of these at803x properties are documented anywhere, so just
remove them.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This patch changes flush_dcache_page() to only print inequivalent alias error
messages on systems that require coherency. Inequivalent aliases can occur on
systems that don't require coherency and this can cause spurious messages.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
With phy-reset-gpios are enabled for i.MX8MM-EVK board, phy
will be reset. Without CONFIG_AT803X_PHY as y, board will stop
booting in NFS DHCP, because phy is not ready. So mark
CONFIG_AT803X_PHY from m to y to make board boot when using nfs rootfs.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The GPIO handle is referencing the wrong GPIO, so the voltage did not
actually change as intended. The pinmux is already correct, so just
correct the GPIO number.
Fixes: 4a13b3bec3 (arm64: dts: imx: add Zii Ultra board support)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
vreg_lvs1a_1p8 and vreg_lvs2a_1p8 are both feeding pins in the low speed
connectors and should as such alway be on, so enable them.
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
SOC revision on older imx8mq is not available in fuses so on anything
other than B1 current code just reports "unknown".
TF-A already handles this by parsing the ROM and exposes the value
through a SMC call. Call this instead of reimplementing the workaround
in the kernel itself.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
drivers/isdn/hardware/mISDN/mISDNisar.c:30:17:
warning: faxmodulation_s defined but not used [-Wunused-const-variable=]
It is never used, so can be removed.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a tracepoint in nfs_fh_to_dentry() for debugging issues with bad
userspace filehandles.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server returns NFS4ERR_OLD_STATEID, then just skip retrying the
GETATTR when replaying the delegreturn compound. We know nothing will
have changed on the server.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server returns NFS4ERR_OLD_STATEID in response to our delegreturn,
we want to sync to the most recent seqid for the delegation stateid. However
if we are already at the most recent, we have two possibilities:
- an OPEN reply is still outstanding and will return a new seqid
- an earlier OPEN reply was dropped on the floor due to a timeout.
In the latter case, we may end up unable to complete the delegreturn,
so we want to bump the seqid to a value greater than the cached value.
While this may cause us to lose the delegation in the former case,
it should now be safe to assume that the client will replay the OPEN
if necessary in order to get a new valid stateid.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server returns the same delegation in an open that we just used
in a delegreturn, we need to ensure we don't apply that stateid if
the delegreturn has freed it on the server.
To do so, we ensure that we do not free the storage for the delegation
until either it is replaced by a new one, or we throw the inode out of
cache.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
In nfs_inode_find_state_and_recover() we want to mark for recovery
only those stateids that match or are older than the supplied
stateid parameter.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Fix the checks in nfs4_inode_make_writeable() to ignore the case where
we hold no delegations. Currently, in such a case, we automatically
flush writes.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Ensure that we check that the delegation is valid in
nfs4_return_incompatible_delegation() before we try to return it.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the delegation was revoked, or is already being returned, just
clear the NFS_DELEGATION_RETURN and NFS_DELEGATION_RETURN_IF_CLOSED
flags and keep going.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If we revoke a delegation, but the stateid's seqid is newer, then
ensure we update the seqid when marking the delegation as revoked.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the server sent us a new delegation stateid that is more recent than
the one that got revoked, then clear the NFS_DELEGATION_REVOKED flag.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a check to ensure that we haven't already removed the delegation
from the inode after we take all the relevant locks.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Rename nfs_inode_return_delegation_noreclaim() to
nfs_inode_evict_delegation(), which better describes what it
does.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
