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Current calculation for diff of TMR_ADD register value may have
64-bit overflow in this code line, when long type scaled_ppm is
large.
adj *= scaled_ppm;
This patch is to resolve it by using mul_u64_u64_div_u64().
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Three fixes for the Qualcomm clk driver: two for regressions this
merge window and one for a long-standing problem that only popped up
now that eMMC is being used"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: gcc-sc7180: Use floor ops for the correct sdcc1 clk
clk: qcom: rcg2: Rectify clk_gfx3d rate rounding without mux division
clk: qcom: rpmh: Update the XO clock source for SC7280
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Hans de Goede:
"A set of bug-fixes and some model specific quirks.
Summary:
- dell-wmi-sysman: A set of probe-error-exit-handling fixes to fix
some systems which advertise the WMI GUIDs, but are not compatible,
not booting
- intel-vbtn/intel-hid: Misc. bugfixes
- intel_pmc: Bug-fixes + a quirk to lower suspend power-consumption
on Tiger Lake
- thinkpad_acpi: misc bugfixes"
* tag 'platform-drivers-x86-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: intel_pmc_core: Ignore GBE LTR on Tiger Lake platforms
platform/x86: intel_pmc_core: Update Kconfig
platform/x86: intel_pmt_crashlog: Fix incorrect macros
platform/x86: intel_pmt_class: Initial resource to 0
platform/x86: intel-vbtn: Stop reporting SW_DOCK events
platform/x86: dell-wmi-sysman: Cleanup create_attributes_level_sysfs_files()
platform/x86: dell-wmi-sysman: Make sysman_init() return -ENODEV of the interfaces are not found
platform/x86: dell-wmi-sysman: Cleanup sysman_init() error-exit handling
platform/x86: dell-wmi-sysman: Fix release_attributes_data() getting called twice on init_bios_attributes() failure
platform/x86: dell-wmi-sysman: Make it safe to call exit_foo_attributes() multiple times
platform/x86: dell-wmi-sysman: Fix possible NULL pointer deref on exit
platform/x86: dell-wmi-sysman: Fix crash caused by calling kset_unregister twice
platform/x86: thinkpad_acpi: Disable DYTC CQL mode around switching to balanced mode
platform/x86: thinkpad_acpi: Allow the FnLock LED to change state
platform/x86: thinkpad_acpi: check dytc version for lapmode sysfs
platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull cachefiles and afs fixes from David Howells:
"Fixes from Matthew Wilcox for page waiting-related issues in
cachefiles and afs as extracted from his folio series[1]:
- In cachefiles, remove the use of the wait_bit_key struct to access
something that's actually in wait_page_key format. The proper
struct is now available in the header, so that should be used
instead.
- Add a proper wait function for waiting killably on the page
writeback flag. This includes a recent bugfix[2] that's not in the
afs code.
- In afs, use the function added in (2) rather than using
wait_on_page_bit_killable() which doesn't provide the
aforementioned bugfix"
Link: https://lore.kernel.org/r/20210320054104.1300774-1-willy@infradead.org[1]
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c2407cf7d22d0c0d94cf20342b3b8f06f1d904e7 [2]
Link: https://lore.kernel.org/r/20210323120829.GC1719932@casper.infradead.org/ # v1
* tag 'afs-cachefiles-fixes-20210323' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Use wait_on_page_writeback_killable
mm/writeback: Add wait_on_page_writeback_killable
fs/cachefiles: Remove wait_bit_key layout dependency
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Based on discussions (e.g. in [1]) my understanding of cachefiles and
the cachefiles userspace daemon is that it creates a cache on a local
filesystem (e.g. ext4, xfs etc.) for a network filesystem. The way this
is done is by writing "bind" to /dev/cachefiles and pointing it to the
directory to use as the cache.
Currently this directory can technically also be an idmapped mount but
cachefiles aren't yet fully aware of such mounts and thus don't take the
idmapping into account when creating cache entries. This could leave
users confused as the ownership of the files wouldn't match to what they
expressed in the idmapping. Block cache files on idmapped mounts until
the fscache rework is done and we have ported it to support idmapped
mounts.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/lkml/20210303161528.n3jzg66ou2wa43qb@wittgenstein [1]
Link: https://lore.kernel.org/r/20210316112257.2974212-1-christian.brauner@ubuntu.com/ # v1
Link: https://listman.redhat.com/archives/linux-cachefs/2021-March/msg00044.html # v2
Link: https://lore.kernel.org/r/20210319114146.410329-1-christian.brauner@ubuntu.com/ # v3
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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As explained in this discussion:
https://lore.kernel.org/netdev/20210117193009.io3nungdwuzmo5f7@skbuf/
the switchdev notifiers for FDB entries managed to have a zero-day bug.
The bridge would not say that this entry is local:
ip link add br0 type bridge
ip link set swp0 master br0
bridge fdb add dev swp0 00:01:02:03:04:05 master local
and the switchdev driver would be more than happy to offload it as a
normal static FDB entry. This is despite the fact that 'local' and
non-'local' entries have completely opposite directions: a local entry
is locally terminated and not forwarded, whereas a static entry is
forwarded and not locally terminated. So, for example, DSA would install
this entry on swp0 instead of installing it on the CPU port as it should.
There is an even sadder part, which is that the 'local' flag is implicit
if 'static' is not specified, meaning that this command produces the
same result of adding a 'local' entry:
bridge fdb add dev swp0 00:01:02:03:04:05 master
I've updated the man pages for 'bridge', and after reading it now, it
should be pretty clear to any user that the commands above were broken
and should have never resulted in the 00:01:02:03:04:05 address being
forwarded (this behavior is coherent with non-switchdev interfaces):
https://patchwork.kernel.org/project/netdevbpf/cover/20210211104502.2081443-1-olteanv@gmail.com/
If you're a user reading this and this is what you want, just use:
bridge fdb add dev swp0 00:01:02:03:04:05 master static
Because switchdev should have given drivers the means from day one to
classify FDB entries as local/non-local, but didn't, it means that all
drivers are currently broken. So we can just as well omit the switchdev
notifications for local FDB entries, which is exactly what this patch
does to close the bug in stable trees. For further development work
where drivers might want to trap the local FDB entries to the host, we
can add a 'bool is_local' to br_switchdev_fdb_call_notifiers(), and
selectively make drivers act upon that bit, while all the others ignore
those entries if the 'is_local' bit is set.
Fixes: 6b26b51b1d13 ("net: bridge: Add support for notifying devices about FDB add/del")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Invalid detection works with two distinct moments: act_ct tries to find
a conntrack entry and set post_ct true, indicating that that was
attempted. Then, when flow dissector tries to dissect CT info and no
entry is there, it knows that it was tried and no entry was found, and
synthesizes/sets
key->ct_state = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
TCA_FLOWER_KEY_CT_FLAGS_INVALID;
mimicing what OVS does.
OVS has this a bit more streamlined, as it recomputes the key after
trying to find a conntrack entry for it.
Issue here is, when we have 'tc action ct clear', it didn't clear
post_ct, causing a subsequent match on 'ct_state -trk' to fail, due to
the above. The fix, thus, is to clear it.
Reproducer rules:
tc filter add dev enp130s0f0np0_0 ingress prio 1 chain 0 \
protocol ip flower ip_proto tcp ct_state -trk \
action ct zone 1 pipe \
action goto chain 2
tc filter add dev enp130s0f0np0_0 ingress prio 1 chain 2 \
protocol ip flower \
action ct clear pipe \
action goto chain 4
tc filter add dev enp130s0f0np0_0 ingress prio 1 chain 4 \
protocol ip flower ct_state -trk \
action mirred egress redirect dev enp130s0f1np1_0
With the fix, the 3rd rule matches, like it does with OVS kernel
datapath.
Fixes: 7baf2429a1a9 ("net/sched: cls_flower add CT_FLAGS_INVALID flag support")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Open-coding this function meant it missed out on the recent bugfix
for waiters being woken by a delayed wake event from a previous
instantiation of the page[1].
[DH: Changed the patch to use vmf->page rather than variable page which
doesn't exist yet upstream]
Fixes: 1cf7a1518aef ("afs: Implement shared-writeable mmap")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: kafs-testing@auristor.com
cc: linux-afs@lists.infradead.org
cc: linux-mm@kvack.org
Link: https://lore.kernel.org/r/20210320054104.1300774-4-willy@infradead.org
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c2407cf7d22d0c0d94cf20342b3b8f06f1d904e7 [1]
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This is the killable version of wait_on_page_writeback.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: kafs-testing@auristor.com
cc: linux-afs@lists.infradead.org
cc: linux-mm@kvack.org
Link: https://lore.kernel.org/r/20210320054104.1300774-3-willy@infradead.org
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Cachefiles was relying on wait_page_key and wait_bit_key being the
same layout, which is fragile. Now that wait_page_key is exposed in
the pagemap.h header, we can remove that fragility
A comment on the need to maintain structure layout equivalence was added by
Linus[1] and that is no longer applicable.
Fixes: 62906027091f ("mm: add PageWaiters indicating tasks are waiting for a page bit")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: kafs-testing@auristor.com
cc: linux-cachefs@redhat.com
cc: linux-mm@kvack.org
Link: https://lore.kernel.org/r/20210320054104.1300774-2-willy@infradead.org/
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3510ca20ece0150af6b10c77a74ff1b5c198e3e2 [1]
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Due to a HW limitation, the Latency Tolerance Reporting (LTR) value
programmed in the Tiger Lake GBE controller is not large enough to allow
the platform to enter Package C10, which in turn prevents the platform from
achieving its low power target during suspend-to-idle. Ignore the GBE LTR
value on Tiger Lake. LTR ignore functionality is currently performed solely
by a debugfs write call. Split out the LTR code into its own function that
can be called by both the debugfs writer and by this work around.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Sasha Neftin <sasha.neftin@intel.com>
Cc: intel-wired-lan@lists.osuosl.org
Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
Link: https://lore.kernel.org/r/20210319201844.3305399-2-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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The intel_pmc_core driver is mostly used as a debugging driver for Intel
platforms that support SLPS0 (S0ix). But the driver may also be used to
communicate actions to the PMC in order to ensure transition to SLPS0 on
some systems and architectures. As such the driver should be built on all
platforms it supports. Indicate this in the Kconfig. Also update the list
of supported features.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Suggested-by: Mario Limonciello <mario.limonciello@dell.com>
Link: https://lore.kernel.org/r/20210319201844.3305399-1-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Fixes off-by-one bugs in the macro assignments for the crashlog control
bits. Was initially tested on emulation but bug revealed after testing on
silicon.
Fixes: 5ef9998c96b0 ("platform/x86: Intel PMT Crashlog capability driver")
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20210317024455.3071477-2-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Initialize the struct resource in intel_pmt_dev_register to zero to avoid a
fault should the char *name field be non-zero.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20210317024455.3071477-1-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit fixes from Shuah Khan:
"Two fixes to the kunit tool from David Gow"
* tag 'linux-kselftest-kunit-fixes-5.12-rc5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tool: Disable PAGE_POISONING under --alltests
kunit: tool: Fix a python tuple typing error
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The structures are used as place holders, so they are modified at run-time.
Obviously they may not be constants.
BUG: unable to handle page fault for address: d0643220
...
CPU: 0 PID: 110 Comm: modprobe Not tainted 5.11.0+ #1
Hardware name: Intel Corp. QUARK/GalileoGen2, BIOS 0x01000200 01/01/2014
EIP: intel_quark_mfd_probe+0x93/0x1c0 [intel_quark_i2c_gpio]
This partially reverts the commit c4a164f41554d2899bed94bdcc499263f41787b4.
While at it, add a comment to avoid similar changes in the future.
Fixes: c4a164f41554 ("mfd: Constify static struct resources")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Tested-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Use a temporary variable to hold the return value from
dsa_tag_driver_get() instead of assigning it to dst->tag_ops. Leaving
an error value in dst->tag_ops can result in deferencing an invalid
pointer when a deferred switch configuration happens later.
Fixes: 357f203bb3b5 ("net: dsa: keep a copy of the tagging protocol in the DSA switch tree")
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2021-03-22
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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gcc-11 complains about a prototype declaration that is different
from the function definition:
drivers/isdn/capi/kcapi.c:724:44: error: argument 2 of type ‘u8 *’ {aka ‘unsigned char *’} declared as a pointer [-Werror=array-parameter=]
724 | u16 capi20_get_manufacturer(u32 contr, u8 *buf)
| ~~~~^~~
In file included from drivers/isdn/capi/kcapi.c:13:
drivers/isdn/capi/kcapi.h:62:43: note: previously declared as an array ‘u8[64]’ {aka ‘unsigned char[64]’}
62 | u16 capi20_get_manufacturer(u32 contr, u8 buf[CAPI_MANUFACTURER_LEN]);
| ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/isdn/capi/kcapi.c:790:38: error: argument 2 of type ‘u8 *’ {aka ‘unsigned char *’} declared as a pointer [-Werror=array-parameter=]
790 | u16 capi20_get_serial(u32 contr, u8 *serial)
| ~~~~^~~~~~
In file included from drivers/isdn/capi/kcapi.c:13:
drivers/isdn/capi/kcapi.h:64:37: note: previously declared as an array ‘u8[8]’ {aka ‘unsigned char[8]’}
64 | u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN]);
| ~~~^~~~~~~~~~~~~~~~~~~~~~~
Change the definition to make them match.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Device firmware doesn't handle ecpu bit for vhca state processing
events and commands. Instead device firmware refers to the unique
function id to distinguish SF of different PCI functions.
When ecpu bit is used, firmware returns a syndrome.
mlx5_cmd_check:780:(pid 872): MODIFY_VHCA_STATE(0xb0e) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x263211)
mlx5_sf_dev_table_create:248:(pid 872): SF DEV table create err = -22
Hence, avoid using ecpu bit.
Fixes: 8f0105418668 ("net/mlx5: SF, Add port add delete functionality")
Fixes: 90d010b8634b ("net/mlx5: SF, Add auxiliary device support")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Vu Pham <vuhuong@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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mlx5e_select_queue compares num_tc_x_num_ch to real_num_tx_queues to
determine if HTB and/or PTP offloads are active. If they are, it
calculates netdev_pick_tx() % num_tc_x_num_ch to prevent it from
selecting HTB and PTP queues for regular traffic. However, before the
channels are first activated, num_tc_x_num_ch is zero. If
ndo_select_queue gets called at this point, the HTB/PTP check will pass,
and mlx5e_select_queue will attempt to take a modulo by num_tc_x_num_ch,
which equals to zero.
This commit fixes the bug by assigning num_tc_x_num_ch to a non-zero
value before registering the netdev.
Fixes: 214baf22870c ("net/mlx5e: Support HTB offload")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Expose error value when failing to comply to command:
$ ethtool --set-priv-flags eth2 rx_cqe_compress [on/off]
Fixes: be7e87f92b58 ("net/mlx5e: Fail safe cqe compressing/moderation mode setting")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Setting connection tracking OVS flows and then setting non-CT flows that
use tuple rewrite action (e.g. mod_tp_dst), causes the latter flows not
being offloaded.
Fix by using a stricter condition in modify_header_match_supported() to
check tuple rewrite support only for flows with CT action. The check is
factored out into standalone modify_tuple_supported() function to aid
readability.
Fixes: 7e36feeb0467 ("net/mlx5e: CT: Don't offload tuple rewrites for established tuples")
Signed-off-by: Dima Chumak <dchumak@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Currently, we support hardware offload only for MPLS over UDP.
However, rules matching on MPLS parameters are now wrongly offloaded
for regular MPLS, without actually taking the parameters into
consideration when doing the offload.
Fix it by rejecting such unsupported rules.
Fixes: 72046a91d134 ("net/mlx5e: Allow to match on mpls parameters")
Signed-off-by: Alaa Hleihel <alaa@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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The multicast counter got removed from uplink representor due to the
cited patch.
Fixes: 47c97e6b10a1 ("net/mlx5e: Fix multicast counter not up-to-date in "ip -s"")
Signed-off-by: Huy Nguyen <huyn@nvidia.com>
Reviewed-by: Daniel Jurgens <danielj@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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ic_close_dev contains a generalization of the logic to not close a
network interface if it's the host port for a DSA switch. This logic is
disguised behind an iteration through the lowers of ic_dev in
ic_close_dev.
When no interface for ipconfig can be found, ic_dev is NULL, and
ic_close_dev:
- dereferences a NULL pointer when assigning selected_dev
- would attempt to search through the lower interfaces of a NULL
net_device pointer
So we should protect against that case.
The "lower_dev" iterator variable was shortened to "lower" in order to
keep the 80 character limit.
Fixes: f68cbaed67cb ("net: ipconfig: avoid use-after-free in ic_close_devs")
Fixes: 46acf7bdbc72 ("Revert "net: ipv4: handle DSA enabled master network devices"")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Heiko Thiery <heiko.thiery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There ended up being two sections with the same title. Combine the two
into one section.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Cc: Manish Chopra <manishc@marvell.com>
Cc: Coiby Xu <coiby.xu@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fixes from Paul Moore:
"Three SELinux patches:
- Fix a problem where a local variable is used outside its associated
function. Thankfully this can only be triggered by reloading the
SELinux policy, which is a restricted operation for other obvious
reasons.
- Fix some incorrect, and inconsistent, audit and printk messages
when loading the SELinux policy.
All three patches are relatively minor and have been through our
testing with no failures"
* tag 'selinux-pr-20210322' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinuxfs: unify policy load error reporting
selinux: fix variable scope issue in live sidtab conversion
selinux: don't log MAC_POLICY_LOAD record on failed policy load
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The "First Fault Register" (FFR) is an SVE register that mimics a
predicate register, but clears bits when a load or store fails to handle
an element of a vector. The supposed usage scenario is to initialise
this register (using SETFFR), then *read* it later on to learn about
elements that failed to load or store. Explicit writes to this register
using the WRFFR instruction are only supposed to *restore* values
previously read from the register (for context-switching only).
As the manual describes, this register holds only certain values, it:
"... contains a monotonic predicate value, in which starting from bit 0
there are zero or more 1 bits, followed only by 0 bits in any remaining
bit positions."
Any other value is UNPREDICTABLE and is not supposed to be "restored"
into the register.
The SVE test currently tries to write a signature pattern into the
register, which is *not* a canonical FFR value. Apparently the existing
setups treat UNPREDICTABLE as "read-as-written", but a new
implementation actually only stores canonical values. As a consequence,
the sve-test fails immediately when comparing the FFR value:
-----------
# ./sve-test
Vector length: 128 bits
PID: 207
Mismatch: PID=207, iteration=0, reg=48
Expected [cf00]
Got [0f00]
Aborted
-----------
Fix this by only populating the FFR with proper canonical values.
Effectively the requirement described above limits us to 17 unique
values over 16 bits worth of FFR, so we condense our signature down to 4
bits (2 bits from the PID, 2 bits from the generation) and generate the
canonical pattern from it. Any bits describing elements above the
minimum 128 bit are set to 0.
This aligns the FFR usage to the architecture and fixes the test on
microarchitectures implementing FFR in a more restricted way.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviwed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210319120128.29452-1-andre.przywara@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
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Memory hotplug may fail on systems with CONFIG_RANDOMIZE_BASE because the
linear map range is not checked correctly.
The start physical address that linear map covers can be actually at the
end of the range because of randomization. Check that and if so reduce it
to 0.
This can be verified on QEMU with setting kaslr-seed to ~0ul:
memstart_offset_seed = 0xffff
START: __pa(_PAGE_OFFSET(vabits_actual)) = ffff9000c0000000
END: __pa(PAGE_END - 1) = 1000bfffffff
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Fixes: 58284a901b42 ("arm64/mm: Validate hotplug range before creating linear mapping")
Tested-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20210216150351.129018-2-pasha.tatashin@soleen.com
Signed-off-by: Will Deacon <will@kernel.org>
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The ppos points to a position in the old kernel memory (and in case of
arm64 in the crash kernel since elfcorehdr is passed as a segment). The
function should update the ppos by the amount that was read. This bug is
not exposed by accident, but other platforms update this value properly.
So, fix it in ARM64 version of elfcorehdr_read() as well.
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Fixes: e62aaeac426a ("arm64: kdump: provide /proc/vmcore file")
Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Link: https://lore.kernel.org/r/20210319205054.743368-1-pasha.tatashin@soleen.com
Signed-off-by: Will Deacon <will@kernel.org>
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s/acurate/accurate/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20210319222848.29928-1-unixbhaskar@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
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In commit 94bccc340710 ("iscsi_ibft: make ISCSI_IBFT dependson ACPI instead
of ISCSI_IBFT_FIND") Kconfig was disentangled to make ISCSI_IBFT selection
not depend on x86.
Update arm64 acpi documentation, changing IBFT support status from
"Not Supported" to "Optional".
Opportunistically re-flow paragraph for changed lines.
Link: https://lore.kernel.org/lkml/1563475054-10680-1-git-send-email-thomas.tai@oracle.com/
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/9efc652df2b8d6b53d9acb170eb7c9ca3938dfef.1615920441.git.tom.saeger@oracle.com
Signed-off-by: Will Deacon <will@kernel.org>
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We recently converted arm64 to use arch_stack_walk() in commit:
5fc57df2f6fd ("arm64: stacktrace: Convert to ARCH_STACKWALK")
The core stacktrace code expects that (when tracing the current task)
arch_stack_walk() starts a trace at its caller, and does not include
itself in the trace. However, arm64's arch_stack_walk() includes itself,
and so traces include one more entry than callers expect. The core
stacktrace code which calls arch_stack_walk() tries to skip a number of
entries to prevent itself appearing in a trace, and the additional entry
prevents skipping one of the core stacktrace functions, leaving this in
the trace unexpectedly.
We can fix this by having arm64's arch_stack_walk() begin the trace with
its caller. The first value returned by the trace will be
__builtin_return_address(0), i.e. the caller of arch_stack_walk(). The
first frame record to be unwound will be __builtin_frame_address(1),
i.e. the caller's frame record. To prevent surprises, arch_stack_walk()
is also marked noinline.
While __builtin_frame_address(1) is not safe in portable code, local GCC
developers have confirmed that it is safe on arm64. To find the caller's
frame record, the builtin can safely dereference the current function's
frame record or (in theory) could stash the original FP into another GPR
at function entry time, neither of which are problematic.
Prior to this patch, the tracing code would unexpectedly show up in
traces of the current task, e.g.
| # cat /proc/self/stack
| [<0>] stack_trace_save_tsk+0x98/0x100
| [<0>] proc_pid_stack+0xb4/0x130
| [<0>] proc_single_show+0x60/0x110
| [<0>] seq_read_iter+0x230/0x4d0
| [<0>] seq_read+0xdc/0x130
| [<0>] vfs_read+0xac/0x1e0
| [<0>] ksys_read+0x6c/0xfc
| [<0>] __arm64_sys_read+0x20/0x30
| [<0>] el0_svc_common.constprop.0+0x60/0x120
| [<0>] do_el0_svc+0x24/0x90
| [<0>] el0_svc+0x2c/0x54
| [<0>] el0_sync_handler+0x1a4/0x1b0
| [<0>] el0_sync+0x170/0x180
After this patch, the tracing code will not show up in such traces:
| # cat /proc/self/stack
| [<0>] proc_pid_stack+0xb4/0x130
| [<0>] proc_single_show+0x60/0x110
| [<0>] seq_read_iter+0x230/0x4d0
| [<0>] seq_read+0xdc/0x130
| [<0>] vfs_read+0xac/0x1e0
| [<0>] ksys_read+0x6c/0xfc
| [<0>] __arm64_sys_read+0x20/0x30
| [<0>] el0_svc_common.constprop.0+0x60/0x120
| [<0>] do_el0_svc+0x24/0x90
| [<0>] el0_svc+0x2c/0x54
| [<0>] el0_sync_handler+0x1a4/0x1b0
| [<0>] el0_sync+0x170/0x180
Erring on the side of caution, I've given this a spin with a bunch of
toolchains, verifying the output of /proc/self/stack and checking that
the assembly looked sound. For GCC (where we require version 5.1.0 or
later) I tested with the kernel.org crosstool binares for versions
5.5.0, 6.4.0, 6.5.0, 7.3.0, 7.5.0, 8.1.0, 8.3.0, 8.4.0, 9.2.0, and
10.1.0. For clang (where we require version 10.0.1 or later) I tested
with the llvm.org binary releases of 11.0.0, and 11.0.1.
Fixes: 5fc57df2f6fd ("arm64: stacktrace: Convert to ARCH_STACKWALK")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Jun <chenjun102@huawei.com>
Cc: Marco Elver <elver@google.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: <stable@vger.kernel.org> # 5.10.x
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210319184106.5688-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
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When reloading driver, the head/tail pointer of CMDQ may be not at
position 0. Then during initialization of CMDQ, if head is reset first,
the firmware will start to handle CMDQ because the head is not equal to
the tail. The driver can reset tail first since the firmware will be
triggerred only by head. This bug is introduced by changing macros of
head/tail register without changing the order of initialization.
Fixes: 292b3352bd5b ("RDMA/hns: Adjust fields and variables about CMDQ tail/head")
Link: https://lore.kernel.org/r/1615602611-7963-1-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Miscellaneous ext4 bug fixes for v5.12"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: initialize ret to suppress smatch warning
ext4: stop inode update before return
ext4: fix rename whiteout with fast commit
ext4: fix timer use-after-free on failed mount
ext4: fix potential error in ext4_do_update_inode
ext4: do not try to set xattr into ea_inode if value is empty
ext4: do not iput inode under running transaction in ext4_rename()
ext4: find old entry again if failed to rename whiteout
ext4: fix error handling in ext4_end_enable_verity()
ext4: fix bh ref count on error paths
fs/ext4: fix integer overflow in s_log_groups_per_flex
ext4: add reclaim checks to xattr code
ext4: shrink race window in ext4_should_retry_alloc()
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Pull io_uring followup fixes from Jens Axboe:
- The SIGSTOP change from Eric, so we properly ignore that for
PF_IO_WORKER threads.
- Disallow sending signals to PF_IO_WORKER threads in general, we're
not interested in having them funnel back to the io_uring owning
task.
- Stable fix from Stefan, ensuring we properly break links for short
send/sendmsg recv/recvmsg if MSG_WAITALL is set.
- Catch and loop when needing to run task_work before a PF_IO_WORKER
threads goes to sleep.
* tag 'io_uring-5.12-2021-03-21' of git://git.kernel.dk/linux-block:
io_uring: call req_set_fail_links() on short send[msg]()/recv[msg]() with MSG_WAITALL
io-wq: ensure task is running before processing task_work
signal: don't allow STOP on PF_IO_WORKER threads
signal: don't allow sending any signals to PF_IO_WORKER threads
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver fixes from Greg KH:
"Some small staging and IIO driver fixes:
- MAINTAINERS changes for the move of the staging mailing list
- comedi driver fixes to get request_irq() to work correctly
- counter driver fixes for reported issues with iio devices
- tiny iio driver fixes for reported issues.
All of these have been in linux-next with no reported problems"
* tag 'staging-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: vt665x: fix alignment constraints
staging: comedi: cb_pcidas64: fix request_irq() warn
staging: comedi: cb_pcidas: fix request_irq() warn
MAINTAINERS: move the staging subsystem to lists.linux.dev
MAINTAINERS: move some real subsystems off of the staging mailing list
iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler
iio: hid-sensor-temperature: Fix issues of timestamp channel
iio: hid-sensor-humidity: Fix alignment issue of timestamp channel
counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register
counter: stm32-timer-cnt: fix ceiling write max value
counter: stm32-timer-cnt: Report count function when SLAVE_MODE_DISABLED
iio: adc: ab8500-gpadc: Fix off by 10 to 3
iio:adc:stm32-adc: Add HAS_IOMEM dependency
iio: adis16400: Fix an error code in adis16400_initial_setup()
iio: adc: adi-axi-adc: add proper Kconfig dependencies
iio: adc: ad7949: fix wrong ADC result due to incorrect bit mask
iio: hid-sensor-prox: Fix scale not correct issue
iio:adc:qcom-spmi-vadc: add default scale to LR_MUX2_BAT_ID channel
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt driver fixes from Greg KH:
"Here are some small Thunderbolt and USB driver fixes for some reported
issues:
- thunderbolt fixes for minor problems
- typec fixes for power issues
- usb-storage quirk addition
- usbip bugfix
- dwc3 bugfix when stopping transfers
- cdnsp bugfix for isoc transfers
- gadget use-after-free fix
All have been in linux-next this week with no reported issues"
* tag 'usb-5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: typec: tcpm: Skip sink_cap query only when VDM sm is busy
usb: dwc3: gadget: Prevent EP queuing while stopping transfers
usb: typec: tcpm: Invoke power_supply_changed for tcpm-source-psy-
usb: typec: Remove vdo[3] part of tps6598x_rx_identity_reg struct
usb-storage: Add quirk to defeat Kindle's automatic unload
usb: gadget: configfs: Fix KASAN use-after-free
usbip: Fix incorrect double assignment to udc->ud.tcp_rx
usb: cdnsp: Fixes incorrect value in ISOC TRB
thunderbolt: Increase runtime PM reference count on DP tunnel discovery
thunderbolt: Initialize HopID IDAs in tb_switch_alloc()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
"A change to robustify force-threaded IRQ handlers to always disable
interrupts, plus a DocBook fix.
The force-threaded IRQ handler change has been accelerated from the
normal schedule of such a change to keep the bad pattern/workaround of
spin_lock_irqsave() in handlers or IRQF_NOTHREAD as a kludge from
spreading"
* tag 'irq-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Disable interrupts for force threaded handlers
genirq/irq_sim: Fix typos in kernel doc (fnode -> fwnode)
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Boundary condition fixes for bugs unearthed by the perf fuzzer"
* tag 'perf-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Fix unchecked MSR access error caused by VLBR_EVENT
perf/x86/intel: Fix a crash caused by zero PEBS status
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
- Get static calls & modules right. Hopefully.
- WW mutex fixes
* tag 'locking-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
static_call: Fix static_call_update() sanity check
static_call: Align static_call_is_init() patching condition
static_call: Fix static_call_set_init()
locking/ww_mutex: Fix acquire/release imbalance in ww_acquire_init()/ww_acquire_fini()
locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
- another missing RT_PROP table related fix, to ensure that the
efivarfs pseudo filesystem fails gracefully if variable services
are unsupported
- use the correct alignment for literal EFI GUIDs
- fix a use after unmap issue in the memreserve code
* tag 'efi-urgent-2021-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: use 32-bit alignment for efi_guid_t literals
firmware/efi: Fix a use after bug in efi_mem_reserve_persistent
efivars: respect EFI_UNSUPPORTED return from firmware
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
"The freshest pile of shiny x86 fixes for 5.12:
- Add the arch-specific mapping between physical and logical CPUs to
fix devicetree-node lookups
- Restore the IRQ2 ignore logic
- Fix get_nr_restart_syscall() to return the correct restart syscall
number. Split in a 4-patches set to avoid kABI breakage when
backporting to dead kernels"
* tag 'x86_urgent_for_v5.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic/of: Fix CPU devicetree-node lookups
x86/ioapic: Ignore IRQ2 again
x86: Introduce restart_block->arch_data to remove TS_COMPAT_RESTART
x86: Introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall()
x86: Move TS_COMPAT back to asm/thread_info.h
kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix a possible stack corruption and subsequent DLPAR failure in the
rpadlpar_io PCI hotplug driver
- Two build fixes for uncommon configurations
Thanks to Christophe Leroy and Tyrel Datwyler.
* tag 'powerpc-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
PCI: rpadlpar: Fix potential drc_name corruption in store functions
powerpc: Force inlining of cpu_has_feature() to avoid build failure
powerpc/vdso32: Add missing _restgpr_31_x to fix build failure
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Stop reporting SW_DOCK events because this breaks suspend-on-lid-close.
SW_DOCK should only be reported for docking stations, but all the DSDTs in
my DSDT collection which use the intel-vbtn code, always seem to use this
for 2-in-1s / convertibles and set SW_DOCK=1 when in laptop-mode (in tandem
with setting SW_TABLET_MODE=0).
This causes userspace to think the laptop is docked to a port-replicator
and to disable suspend-on-lid-close, which is undesirable.
Map the dock events to KEY_IGNORE to avoid this broken SW_DOCK reporting.
Note this may theoretically cause us to stop reporting SW_DOCK on some
device where the 0xCA and 0xCB intel-vbtn events are actually used for
reporting docking to a classic docking-station / port-replicator but
I'm not aware of any such devices.
Also the most important thing is that we only report SW_DOCK when it
reliably reports being docked to a classic docking-station without any
false positives, which clearly is not the case here. If there is a
chance of reporting false positives then it is better to not report
SW_DOCK at all.
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210321163513.72328-1-hdegoede@redhat.com
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Cleanup create_attributes_level_sysfs_files():
1. There is no need to call sysfs_remove_file() on error, sysman_init()
will already call release_attributes_data() on failure which already does
this.
2. There is no need for the pr_debug() calls sysfs_create_file() should
never fail and if it does it will already complain about the problem
itself.
Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems")
Cc: Divya Bharathi <Divya_Bharathi@dell.com>
Cc: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210321115901.35072-8-hdegoede@redhat.com
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interfaces are not found
When either the attributes or the password interface is not found, then
unregister the 2 wmi drivers again and return -ENODEV from sysman_init().
Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems")
Cc: Divya Bharathi <Divya_Bharathi@dell.com>
Cc: Mario Limonciello <mario.limonciello@dell.com>
Reported-by: Alexander Naumann <alexandernaumann@gmx.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210321115901.35072-7-hdegoede@redhat.com
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Cleanup sysman_init() error-exit handling:
1. There is no need for the fail_reset_bios and fail_authentication_kset
eror-exit cases, these can be handled by release_attributes_data()
2. Rename all the labels from fail_what_failed, to err_what_to_cleanup
this is the usual way to name these and avoids the need to rename
them when extra steps are added.
Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems")
Cc: Divya Bharathi <Divya_Bharathi@dell.com>
Cc: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210321115901.35072-6-hdegoede@redhat.com
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