When modifying TTL, packet's csum has to be recalculated.
Due to HW issue in ConnectX-5, csum recalculation for modify TTL
is supported through a work-around that is specifically enabled
by configuration.
If the work-around isn't enabled, ignore the modify TTL action
rather than adding an unsupported action.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Every matcher has RX and TX paths. When a new matcher is created, its RX
and TX start/end anchors are connected to the respective RX and TX anchors
of the previous and next matchers.
This creates a potential performance issue: when a certain rule is added
to a matcher, in many cases it is RX or TX only rule, which may create a
long chain of RX/TX-only paths w/o the actual rules.
This patch aims to handle this issue.
RX and TX matchers are now handled separately: matcher connection in the
matchers chain is split into two separate lists: RX only and TX only.
when a new matcher is created, it is initially created 'detached' - its
RX/TX members are not inserted into the table's matcher list.
When an actual rule is added, only its appropriate RX or TX nic matchers
are then added to the table's nic matchers list and inserted into its
place in the chain of matchers.
I.e., if the rule that is being added is an RX-only rule, only the RX
part of the matcher will be connected to the chain, while TX part of the
matcher remains detached and doesn't prolong the TX chain of the matchers.
Same goes for rule deletion: when the last RX/TX rule of the nic matcher
is destroyed, the nic matcher is removed from its list.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Match on geneve_tlv_option_0_exist field on devices that support STEv1.
Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Tunnel headers are generic encapsulation headers, applies for all
tunneling protocols identified by the device native parser or by the
programmable parser, this support will enable raw matching headers 0 and 1.
Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Add support for misc5 match parameter as per HW spec, this will allow
matching on tunnel_header fields.
Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Extend mlx5 debugfs support to present Software Steering resources:
dr_domain including it's tables, matchers and rules.
The interface is read-only. While dump is being presented, new steering
rules cannot be inserted/deleted.
The steering information is dumped in the CSV form with the following
format:
<object_type>,<object_ID>, <object_info>,...,<object_info>
This data can be read at the following path:
/sys/kernel/debug/mlx5/<BDF>/steering/fdb/<domain_handle>
Example:
# cat /sys/kernel/debug/mlx5/0000:82:00.0/steering/fdb/dmn_000018644
3100,0x55caa4621c50,0xee802,4,65533
3101,0x55caa4621c50,0xe0100008
Changes in V2:
- Reduce temp hex buffer size and avoid unnecessary memset
- Use bin2hex() instead of DIY loop
- Don't check debugfs functions return values
Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Allow only legal values for flex parser ID - values from 0 to 7.
For other values skip the parser, and as a result the matcher creation
will fail for using invalid flex parser ID.
Signed-off-by: Hamdan Igbaria <hamdani@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
In dr_types structs, some list fields are list heads, and some
are just list nodes that are stored on the other structs' lists.
Rename the appropriate list field to reflect this distinction.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Macros prefix should be capital letters - fix the prefix in
mlx5_FLEX_PARSER_MPLS_OVER_UDP_ENABLED.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
The error code of nic matcher init functions wasn't checked.
This patch improves the matcher init function and fix error flow bug:
the handling of match parameter is moved into a separate function
and error flow is simplified.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
The ring reset result values are defined starting from 0x1 instead of 0.
This causes out-of-tree drivers that support this message to understand
that a ring reset failed even if the operation was successful.
Fix by starting the definition of ring reset result values from 0.
Fixes: 0bba03ce97 ("crypto: qat - add PFVF support to enable the reset of ring pairs")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reported-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Building with clang static analysis returns this warning:
qm.c:4382:11: warning: The left operand of '==' is a garbage value
if (*val == 0 || *val > QM_QOS_MAX_VAL || ret) {
~~~~ ^
The call to qm_qos_value_init() can return an error without setting
*val. So check ret before checking *val.
Fixes: 72b010dc33 ("crypto: hisilicon/qm - supports writing QoS int the host")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The self test of the KDF is based on SHA-256. Thus, this algorithm must
be present as otherwise a warning is issued.
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
x86 AES-NI routines can deal with unaligned data. Crypto context
(key, iv etc.) have to be aligned but we take care of that separately
by copying it onto the stack. We were feeding unaligned data into
crypto routines up until commit 83c83e6588 ("crypto: aesni -
refactor scatterlist processing") switched to use the full
skcipher API which uses cra_alignmask to decide data alignment.
This fixes 21% performance regression in kTLS.
Tested by booting with CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y
(and running thru various kTLS packets).
CC: stable@vger.kernel.org # 5.15+
Fixes: 83c83e6588 ("crypto: aesni - refactor scatterlist processing")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eliminate the following coccicheck warning:
./drivers/crypto/ccp/sev-dev.c:263:2-3: Unneeded semicolon
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The include/linux/crypto.h struct crypto_alg field cra_driver_name description
states "Unique name of the transformation provider. " ... " this contains the
name of the chip or provider and the name of the transformation algorithm."
In case of the stm32-crc driver, field cra_driver_name is identical for all
registered transformation providers and set to the name of the driver itself,
which is incorrect. This patch fixes it by assigning a unique cra_driver_name
to each registered transformation provider.
The kernel crash is triggered when the driver calls crypto_register_shashes()
which calls crypto_register_shash(), which calls crypto_register_alg(), which
calls __crypto_register_alg(), which returns -EEXIST, which is propagated
back through this call chain. Upon -EEXIST from crypto_register_shash(), the
crypto_register_shashes() starts unregistering the providers back, and calls
crypto_unregister_shash(), which calls crypto_unregister_alg(), and this is
where the BUG() triggers due to incorrect cra_refcnt.
Fixes: b51dbe9091 ("crypto: stm32 - Support for STM32 CRC32 crypto module")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: <stable@vger.kernel.org> # 4.12+
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Fabien Dessenne <fabien.dessenne@st.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Lionel Debieve <lionel.debieve@st.com>
Cc: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-crypto@vger.kernel.org
Acked-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
In the init functions of sha512 and sha384, the initial hash value
use macros instead of numbers.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
sha*_base_init() series functions has implemented the initialization
of the hash context, this commit use sha*_base_init() function to
replace repeated implementations.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
sha*_base_init() series functions has implemented the initialization
of the hash context, this commit use sha*_base_init() function to
replace repeated implementations.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
sha*_base_init() series functions has implemented the initialization
of the hash context, this commit use sha*_base_init() function to
replace repeated implementations.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto_sha256_init() and sha256_base_init() are the same repeated
implementations, remove the crypto_sha256_init() in generic
implementation, sha224 is the same process.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The output n bits can receive more than n bits of min entropy, of course,
but the fixed output of the conditioning function can only asymptotically
approach the output size bits of min entropy, not attain that bound.
Random maps will tend to have output collisions, which reduces the
creditable output entropy (that is what SP 800-90B Section 3.1.5.1.2
attempts to bound).
The value "64" is justified in Appendix A.4 of the current 90C draft,
and aligns with NIST's in "epsilon" definition in this document, which is
that a string can be considered "full entropy" if you can bound the min
entropy in each bit of output to at least 1-epsilon, where epsilon is
required to be <= 2^(-32).
Note, this patch causes the Jitter RNG to cut its performance in half in
FIPS mode because the conditioning function of the LFSR produces 64 bits
of entropy in one block. The oversampling requires that additionally 64
bits of entropy are sampled from the noise source. If the conditioner is
changed, such as using SHA-256, the impact of the oversampling is only
one fourth, because for the 256 bit block of the conditioner, only 64
additional bits from the noise source must be sampled.
This patch is derived from the user space jitterentropy-library.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Reviewed-by: Simo Sorce <simo@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adding Kai Ye as SEC2 maintainer.
Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Zaibo Xu <xuzaibo@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The spaceball.c module was not properly parsing the movement reports
coming from the device. The code read axis data as signed 16-bit
little-endian values starting at offset 2.
In fact, axis data in Spaceball movement reports are signed 16-bit
big-endian values starting at offset 3. This was determined first by
visually inspecting the data packets, and later verified by consulting:
http://spacemice.org/pdf/SpaceBall_2003-3003_Protocol.pdf
If this ever worked properly, it was in the time before Git...
Signed-off-by: Leo L. Schwab <ewhac@ewhac.org>
Link: https://lore.kernel.org/r/20211221101630.1146385-1-ewhac@ewhac.org
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Syzbot has reported warning in __flush_work(). This warning is caused by
work->func == NULL, which means missing work initialization.
This may happen, since input_dev->close() calls
cancel_work_sync(&dev->work), but dev->work initalization happens _after_
input_register_device() call.
So this patch moves dev->work initialization before registering input
device
Fixes: 5a6eb676d3 ("Input: appletouch - improve powersaving for Geyser3 devices")
Reported-and-tested-by: syzbot+b88c5eae27386b252bbd@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211230141151.17300-1-paskripkin@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
nouveau:
- fencing regression fix
i915:
- Fix possible uninitialized variable
- Fix composite fence seqno icrement on each fence creation
amdgpu:
- Fencing fix
- XGMI fix
- VCN regression fix
- IP discovery regression fixes
- Fix runpm documentation
- Suspend/resume fixes
- Yellow Carp display fixes
- MCLK power management fix
- dma-buf fix
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Merge tag 'drm-fixes-2021-12-31' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"This is a bit bigger than I'd like, however it has two weeks of amdgpu
fixes in it, since they missed last week, which was very small.
The nouveau regression is probably the biggest fix in here, and it
needs to go into 5.15 as well, two i915 fixes, and then a scattering
of amdgpu fixes. The biggest fix in there is for a fencing NULL
pointer dereference, the rest are pretty minor.
For the misc team, I've pulled the two misc fixes manually since I'm
not sure what is happening at this time of year!
The amdgpu maintainers have the outstanding runpm regression to fix
still, they are just working through the last bits of it now.
Summary:
nouveau:
- fencing regression fix
i915:
- Fix possible uninitialized variable
- Fix composite fence seqno icrement on each fence creation
amdgpu:
- Fencing fix
- XGMI fix
- VCN regression fix
- IP discovery regression fixes
- Fix runpm documentation
- Suspend/resume fixes
- Yellow Carp display fixes
- MCLK power management fix
- dma-buf fix"
* tag 'drm-fixes-2021-12-31' of git://anongit.freedesktop.org/drm/drm:
drm/amd/display: Changed pipe split policy to allow for multi-display pipe split
drm/amd/display: Fix USB4 null pointer dereference in update_psp_stream_config
drm/amd/display: Set optimize_pwr_state for DCN31
drm/amd/display: Send s0i2_rdy in stream_count == 0 optimization
drm/amd/display: Added power down for DCN10
drm/amd/display: fix B0 TMDS deepcolor no dislay issue
drm/amdgpu: no DC support for headless chips
drm/amdgpu: put SMU into proper state on runpm suspending for BOCO capable platform
drm/amdgpu: always reset the asic in suspend (v2)
drm/amd/pm: skip setting gfx cgpg in the s0ix suspend-resume
drm/i915: Increment composite fence seqno
drm/i915: Fix possible uninitialized variable in parallel extension
drm/amdgpu: fix runpm documentation
drm/nouveau: wait for the exclusive fence after the shared ones v2
drm/amdgpu: add support for IP discovery gc_info table v2
drm/amdgpu: When the VCN(1.0) block is suspended, powergating is explicitly enabled
drm/amd/pm: Fix xgmi link control on aldebaran
drm/amdgpu: introduce new amdgpu_fence object to indicate the job embedded fence
drm/amdgpu: fix dropped backing store handling in amdgpu_dma_buf_move_notify
This merges two fixes that haven't been sent to me yet, but I wanted to get in.
One amdgpu fix, but one nouveau regression fixer.
Signed-off-by: Dave Airlie <airlied@redhat.com>
1. Define more regs. Some switches (e.g. BCM4908) have up to 6 regs.
2. Add helper for handling non-lineral port <-> reg mappings.
3. Add support for 12 B LED reg blocks on BCM4908 (different layout)
Complete support for LEDs setup will be implemented once Linux receives
a proper design & implementation for "hardware" LEDs.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211229171642.22942-1-zajec5@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit d64c2a7612 ("staging: irda: remove the irda network stack and
drivers") removes the config IRDA.
Remove the remaining references to this non-existing config in the network
header files.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20211229113620.19368-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Variable i is being assigned a value that is never read, the
assignment is redundant and can be removed. Cleans up clang-scan
build warning:
drivers/nfc/st21nfca/i2c.c:319:4: warning: Value stored to 'i'
is never read [deadcode.DeadStores]
i = 0;
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211230161230.428457-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The packet access instructions are a convoluted leftover from classic
BPF. Move them last past the much more important atomic operations,
and improve the rendering of the code example.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211223101906.977624-5-hch@lst.de
Use RST tables that are nicely readable both in plain ascii as well as
in html to render the instruction encodings, and add a few subheadings
to better structure the text.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211223101906.977624-4-hch@lst.de
Split the introductory that explain eBPF vs classic BPF and how it maps
to hardware from the instruction set specification into a standalone
document. This duplicates a little bit of information but gives us a
useful reference for the eBPF instrution set that is not encumbered by
classic BPF.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211223101906.977624-3-hch@lst.de
Use normal RST file reference instead of linkage copied from the old filter.rst
document that does not actually work when using HTML output.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211223101906.977624-2-hch@lst.de
Make sure that finish_mount_kattr() is called after mount_kattr was
succesfully built in both the success and failure case to prevent
leaking any references we took when we built it. We returned early if
path lookup failed thereby risking to leak an additional reference we
took when building mount_kattr when an idmapped mount was requested.
Cc: linux-fsdevel@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: 9caccd4154 ("fs: introduce MOUNT_ATTR_IDMAP")
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
commit 077cdda764 ("net/mlx5e: TC, Fix memory leak with rules with internal port")
commit 31108d142f ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'")
commit 4390c6edc0 ("net/mlx5: Fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'")
https://lore.kernel.org/all/20211229065352.30178-1-saeed@kernel.org/
net/smc/smc_wr.c
commit 49dc9013e3 ("net/smc: Use the bitmap API when applicable")
commit 349d43127d ("net/smc: fix kernel panic caused by race of smc_sock")
bitmap_zero()/memset() is removed by the fix
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- xsk: initialise xskb free_list_node, fixup for a -rc7 fix
Current release - new code bugs:
- mlx5: handful of minor fixes:
- use first online CPU instead of hard coded CPU
- fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'
- fix skb memory leak when TC classifier action offloads are
disabled
- fix memory leak with rules with internal OvS port
Previous releases - regressions:
- igc: do not enable crosstimestamping for i225-V models
Previous releases - always broken:
- udp: use datalen to cap ipv6 udp max gso segments
- fix use-after-free in tw_timer_handler due to early free of stats
- smc: fix kernel panic caused by race of smc_sock
- smc: don't send CDC/LLC message if link not ready, avoid timeouts
- sctp: use call_rcu to free endpoint, avoid UAF in sock diag
- bridge: mcast: add and enforce query interval minimum
- usb: pegasus: do not drop long Ethernet frames
- mlx5e: fix ICOSQ recovery flow for XSK
- nfc: uapi: use kernel size_t to fix user-space builds
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from.. Santa?
No regressions on our radar at this point. The igc problem fixed here
was the last one I was tracking but it was broken in previous
releases, anyway. Mostly driver fixes and a couple of largish SMC
fixes.
Current release - regressions:
- xsk: initialise xskb free_list_node, fixup for a -rc7 fix
Current release - new code bugs:
- mlx5: handful of minor fixes:
- use first online CPU instead of hard coded CPU
- fix some error handling paths in 'mlx5e_tc_add_fdb_flow()'
- fix skb memory leak when TC classifier action offloads are disabled
- fix memory leak with rules with internal OvS port
Previous releases - regressions:
- igc: do not enable crosstimestamping for i225-V models
Previous releases - always broken:
- udp: use datalen to cap ipv6 udp max gso segments
- fix use-after-free in tw_timer_handler due to early free of stats
- smc: fix kernel panic caused by race of smc_sock
- smc: don't send CDC/LLC message if link not ready, avoid timeouts
- sctp: use call_rcu to free endpoint, avoid UAF in sock diag
- bridge: mcast: add and enforce query interval minimum
- usb: pegasus: do not drop long Ethernet frames
- mlx5e: fix ICOSQ recovery flow for XSK
- nfc: uapi: use kernel size_t to fix user-space builds"
* tag 'net-5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
fsl/fman: Fix missing put_device() call in fman_port_probe
selftests: net: using ping6 for IPv6 in udpgro_fwd.sh
Documentation: fix outdated interpretation of ip_no_pmtu_disc
net/ncsi: check for error return from call to nla_put_u32
net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper
net: fix use-after-free in tw_timer_handler
selftests: net: Fix a typo in udpgro_fwd.sh
selftests/net: udpgso_bench_tx: fix dst ip argument
net: bridge: mcast: add and enforce startup query interval minimum
net: bridge: mcast: add and enforce query interval minimum
ipv6: raw: check passed optlen before reading
xsk: Initialise xskb free_list_node
net/mlx5e: Fix wrong features assignment in case of error
net/mlx5e: TC, Fix memory leak with rules with internal port
ionic: Initialize the 'lif->dbid_inuse' bitmap
igc: Fix TX timestamp support for non-MSI-X platforms
igc: Do not enable crosstimestamping for i225-V models
net/smc: fix kernel panic caused by race of smc_sock
net/smc: don't send CDC/LLC message if link not ready
NFC: st21nfca: Fix memory leak in device probe and remove
...
cpu_has_cpufreq() stores a 'struct cpufreq_policy' on the stack.
Unfortunately, with debugging options enabled, the structure can be
larger than 1024 bytes, which causes a compiler warning/error.
(actually observed: 1184 bytes).
Therefore: Switch to cpufreq_cpu_get().
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field. Move the uncore-frequency sysfs code to use default_groups field
which has been the preferred way since aa30f47cf6 ("kobject: Add
support for default attribute groups to kobj_type") so that we can soon
get rid of the obsolete default_attrs field.
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211229141454.2552950-1-gregkh@linuxfoundation.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field. Move the uv sysfs code to use default_groups field which has
been the preferred way since aa30f47cf6 ("kobject: Add support for
default attribute groups to kobj_type") so that we can soon get rid of
the obsolete default_attrs field.
Cc: Justin Ernst <justin.ernst@hpe.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211229141332.2552428-1-gregkh@linuxfoundation.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
x86 ACPI devices which ship with only Android as their factory image use
older kernels which do not yet support ACPI serdev enumeration, as such
the serdev information in their ACPI tables is not reliable.
For example on the Asus ME176C tablet the serdev describing the Bluetooth
HCI points to the serdev_controller connected to the GPS and the other way
around.
Use the new acpi_quirk_skip_serdev_enumeration() helper to identify
known boards with this issue and then either abort adding the serdev
controller (creating a tty cdev instead) or only create the controller
leaving the instantation of the serdev itself up to platform code.
In the case where only the serdev controller is created the necessary
serdevs will instead be instantiated by the
drivers/platform/x86/x86-android-tablets.c kernel module.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
x86 ACPI devices which ship with only Android as their factory image
usually declare a whole bunch of bogus I2C devices in their ACPI tables.
Instantiating I2C clients for these bogus devices causes various issues,
e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them.
The Android x86 kernel fork shipped on these devices has some special code
to remove these bogus devices, instead of just fixing the DSDT <sigh>.
Use the new acpi_quirk_skip_i2c_client_enumeration() helper to identify
known boards / acpi devices with this issue, and skip enumerating these.
Note these boards typically do actually have I2C devices, just
different ones then the ones described in their DSDT. The devices
which are actually present are manually instantiated by the
drivers/platform/x86/x86-android-tablets.c kernel module.
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
x86 ACPI boards which ship with only Android as their factory image usually
declare a whole bunch of bogus I2C devs in their ACPI tables and sometimes
there are issues with serdev devices on these boards too, e.g. the resource
points to the wrong serdev_controller.
Instantiating I2C / serdev devs for these bogus devs causes various issues,
e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them.
The Android x86 kernel fork shipped on these devices has some special code
to remove the bogus I2C clients (and serdevs are ignored completely).
Introduce acpi_quirk_skip_i2c_client_enumeration() and
acpi_quirk_skip_serdev_enumeration() helpers. Which can be used by the I2C/
serdev code to skip instantiating any I2C or serdev devs on broken boards.
These 2 helpers are added to drivers/acpi/x86/utils.c so that the DMI table
can be shared between the I2C and serdev code.
Note these boards typically do actually have I2C and serdev devices, just
different ones then the ones described in their DSDT. The devices which
are actually present are manually instantiated by the
drivers/platform/x86/x86-android-tablets.c kernel module.
The new helpers are only build if CONFIG_X86_ANDROID_TABLETS is enabled,
otherwise they are empty stubs to not unnecessarily grow the kernel size.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
