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Added support for managing new type of ICM for devices that
support sw_owner_v2.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Added new fields for device memory capabilities, in order to
support creation of ICM memory for modify header patterns.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
If 'n' is so large that it's negative, we might wrap around and mistakenly
think that the copy is OK when it's not. Such a copy would probably
crash, but just doing the arithmetic in a more simple way lets us detect
and refuse this case.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220612213227.3881769-4-willy@infradead.org
Get rid of a lot of annoying casts by setting 'addr' once at the top
of the function.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220612213227.3881769-3-willy@infradead.org
vmalloc does not allocate a vm_struct for vm_map_ram() areas. That causes
us to deny usercopies from those areas. This affects XFS which uses
vm_map_ram() for its directories.
Fix this by calling find_vmap_area() instead of find_vm_area().
Fixes: 0aef499f3172 ("mm/usercopy: Detect vmalloc overruns")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220612213227.3881769-2-willy@infradead.org
RCU_NONIDLE usage during __cfi_slowpath_diag can result in an invalid
RCU state in the cpuidle code path:
WARNING: CPU: 1 PID: 0 at kernel/rcu/tree.c:613 rcu_eqs_enter+0xe4/0x138
...
Call trace:
rcu_eqs_enter+0xe4/0x138
rcu_idle_enter+0xa8/0x100
cpuidle_enter_state+0x154/0x3a8
cpuidle_enter+0x3c/0x58
do_idle.llvm.6590768638138871020+0x1f4/0x2ec
cpu_startup_entry+0x28/0x2c
secondary_start_kernel+0x1b8/0x220
__secondary_switched+0x94/0x98
Instead, call rcu_irq_enter/exit to wake up RCU only when needed and
disable interrupts for the entire CFI shadow/module check when we do.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20220531175910.890307-1-samitolvanen@google.com
Fixes: cf68fffb66d6 ("add support for Clang CFI")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
__sys_accept4_file() isn't used outside of the file, make it static.
As the same time, move file_flags and nofile parameters into
__sys_accept4_file().
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes: 6e144b47f560 (octeontx2-pf: Add support for adaptive interrupt coalescing)
Added support for VF interfaces as well.
Signed-off-by: Suman Ghosh <sumang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sk_memory_allocated_add() has three callers, and returns
to them @memory_allocated.
sk_forced_mem_schedule() is one of them, and ignores
the returned value.
Change sk_memory_allocated_add() to return void.
Change sock_reserve_memory() and __sk_mem_raise_allocated()
to call sk_memory_allocated().
This removes one cache line miss [1] for RPC workloads,
as first skbs in TCP write queue and receive queue go through
sk_forced_mem_schedule().
[1] Cache line holding tcp_memory_allocated.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support for Microchip's EVB-LAN8670-USB 10BASE-T1S
ethernet device to the existing smsc95xx driver by adding the new
USB VID/PID pairs.
Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
48-bit DMA addressing is supported in NFP3800 HW and implemented
in NFDK firmware, so enable this feature in driver now. Note that
with this change, NFD3 firmware, which doesn't implement 48-bit
DMA, cannot be used for NFP3800 any more.
RX free list descriptor, used by both NFD3 and NFDK, is also modified
to support 48-bit DMA. That's OK because the top bits is always get
set to 0 when assigned with 40-bit address.
Based on initial work of Jakub Kicinski <jakub.kicinski@netronome.com>.
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CONFIG_64BIT is not sufficient for checking for availability of
iowrite64() and friends.
Also, the out_addr helpers need to be inline.
Fixes: b690f8df6497 ("net: axienet: Use iowrite64 to write all 64b descriptor pointers")
Signed-off-by: David S. Miller <davem@davemloft.net>
Andy Chiu says:
====================
net: axienet: fix DMA Tx error
We ran into multiple DMA TX errors while writing files over a network
block device running on top of a DMA-connected AXI Ethernet device on
64-bit RISC-V machines. The errors indicated that the DMA had fetched a
null descriptor and we found that the reason for this is that AXI DMA had
unexpectedly processed a partially updated tail descriptor pointer. To
fix it, we suggest that the driver should use one 64-bit write instead
of two 32-bit writes to perform such update if possible. For those
archectures where double-word load/stores are unavailable, e.g. 32-bit
archectures, force a driver probe failure if the driver finds 64-bit
capability on DMA.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
According to commit f735c40ed93c ("net: axienet: Autodetect 64-bit DMA
capability") and AXI-DMA spec (pg021), on 64-bit capable dma, only
writing MSB part of tail descriptor pointer causes DMA engine to start
fetching descriptors. However, we found that it is true only if dma is in
idle state. In other words, dma would use a tailp even if it only has LSB
updated, when the dma is running.
The non-atomicity of this behavior could be problematic if enough
delay were introduced in between the 2 writes. For example, if an
interrupt comes right after the LSB write and the cpu spends long
enough time in the handler for the dma to get back into idle state by
completing descriptors, then the seconcd write to MSB would treat dma
to start fetching descriptors again. Since the descriptor next to the
one pointed by current tail pointer is not filled by the kernel yet,
fetching a null descriptor here causes a dma internal error and halt
the dma engine down.
We suggest that the dma engine should start process a 64-bit MMIO write
to the descriptor pointer only if ONE 32-bit part of it is written on all
states. Or we should restrict the use of 64-bit addressable dma on 32-bit
platforms, since those devices have no instruction to guarantee the write
to LSB and MSB part of tail pointer occurs atomically to the dma.
initial condition:
curp = x-3;
tailp = x-2;
LSB = x;
MSB = 0;
cpu: |dma:
iowrite32(LSB, tailp) | completes #(x-3) desc, curp = x-3
... | tailp updated
=> irq | completes #(x-2) desc, curp = x-2
... | completes #(x-1) desc, curp = x-1
... | ...
... | completes #x desc, curp = tailp = x
<= irqreturn | reaches tailp == curp = x, idle
iowrite32(MSB, tailp + 4) | ...
| tailp updated, starts fetching...
| fetches #(x + 1) desc, sees cntrl = 0
| post Tx error, halt
Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reported-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently it is not safe to config the IP as 64-bit addressable on 32-bit
archectures, which cannot perform a double-word store on its descriptor
pointers. The pointer is 64-bit wide if the IP is configured as 64-bit,
and the device would process the partially updated pointer on some
states if the pointer was updated via two store-words. To prevent such
condition, we force a probe fail if we discover that the IP has 64-bit
capability but it is not running on a 64-Bit kernel.
This is a series of patch (1/2). The next patch must be applied in order
to make 64b DMA safe on 64b archectures.
Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reported-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alex Elder says:
====================
net: ipa: simple refactoring
This series contains some minor code improvements.
The first patch verifies that the configuration is compatible with a
recently-defined limit. The second and third rename two fields so
they better reflect their use in the code. The next gets rid of an
empty function by reworking its only caller.
The last two begin to remove the assumption that an event ring is
associated with a single channel. Eventually we'll support having
multiple channels share an event ring but some more needs to be done
before that can happen.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
In gsi_channel_tx_queued(), we report when a transaction gets passed
to hardware. Change that function so it takes transaction rather
than a channel as its argument, and derive the channel from the
transaction. Rename the function accordingly.
Delete the header comments above the function definition; the ones
above the declaration in "gsi_private.h" should suffice. In
addition, the comments above gsi_channel_tx_update() do a fine job
of explaining what's going on.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Each event in an event ring describes the TRE whose completion
caused the event. Currently, every event ring is dedicated to a
single channel, so the channel is easily derived from the event
ring.
An event ring can actually be shared by more than one channel
though, and to distinguish events for one channel from another, the
event structure contains a field indicating which channel the event
is associated with.
In gsi_event_trans(), use the channel ID in an event to determine
which channel the event is for. This makes the channel pointer now
passed to that function irrelevant; pass the GSI pointer to that
function instead.
And although it shouldn't happen, warn if an event arrives that
records a channel ID that's not in use, or if the event does not
have a transaction associated with it.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a GSI transaction completes, ipa_endpoint_trans_complete() is
eventually called. That handles TX and RX completions separately,
but ipa_endpoint_tx_complete() is a no-op.
Instead, have ipa_endpoint_trans_complete() return immediately for a
TX transaction, and incorporate code from ipa_endpoint_rx_complete()
to handle RX transactions.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The trans_tre_max field of the IPA endpoint structure is only used
to limit the number of fragments allowed for an SKB being prepared
for transmission. Recognizing that, rename the field skb_frag_max,
and reduce its value by 1.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Each GSI channel has a TLV FIFO of a certain size, specified in the
configuration data for an AP channel. That size dictates the
maximum number of TREs that are allowed in a single transaction.
The only way that value is used after initialization is as a limit
on the number of TREs in a transaction; calling it "tlv_count"
isn't helpful, and in fact gsi_channel_trans_tre_max() exists to
sort of abstract it.
Instead, rename the channel->tlv_count field trans_tre_max, and get
rid of the helper function. Update a couple of comments as well.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 8797972afff3d ("net: ipa: remove command info pool"), the
maximum number of IPA commands that would be sent in a single
transaction was defined. That number can't exceed the size of the
TLV FIFO on the command channel, and we can check that at runtime.
To add this check, pass a new flag to gsi_channel_data_valid() to
indicate the channel being checked is being used for IPA commands.
Knowing that we can also verify the channel direction is correct.
Use a new local variable that refers to the command-specific portion
of the data being checked.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guangbin Huang says:
====================
net: hns3: add some fixes for -net
This series adds some fixes for the HNS3 ethernet driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently in driver initialization process, driver will set shapping
parameters of tm port to default speed read from firmware. However, the
speed of SFP module may not be default speed, so shapping parameters of
tm port may be incorrect.
To fix this problem, driver sets new shapping parameters for tm port
after getting exact speed of SFP module in this case.
Fixes: 88d10bd6f730 ("net: hns3: add support for multiple media type")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently hns3 driver misuses the VF rss size to initialize the PF rss size
in hclge_tm_vport_tc_info_update. So this patch fix it by checking the
vport id before initialization.
Fixes: 7347255ea389 ("net: hns3: refactor PF rss get APIs with new common rss get APIs")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, settings parameters of schedule mode, dwrr, shaper of tm
priority or qset of one tc are only be set when tc is enabled, they are
not restored to the default settings when tc is disabled. It confuses
users when they cat tm_priority or tm_qset files of debugfs. So this
patch fixes it.
Fixes: 848440544b41 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently tx push is also a ring param. So the original ring param print
info in hns3_is_ringparam_changed should be adjusted.
Fixes: 07fdc163ac88 ("net: hns3: refactor hns3_set_ringparam()")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's unnecessary to push link state to unalive VF, and the VF will
query link state from PF when it being start works.
Fixes: 18b6e31f8bf4 ("net: hns3: PF add support for pushing link status to VFs")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When modify port base vlan, the port base vlan tbl_sta needs to set to
false before removing old vlan, to indicate this operation is not finish.
Fixes: c0f46de30c96 ("net: hns3: fix port base vlan add fail when concurrent with reset")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Highlights:
- Fix hp-wmi regression on HP Omen laptops introduced in 5.18
- Several hardware-id additions
- A couple of other tiny fixes
The following is an automated git shortlog grouped by driver:
barco-p50-gpio:
- Add check for platform_driver_register
gigabyte-wmi:
- Add support for B450M DS3H-CF
- Add Z690M AORUS ELITE AX DDR4 support
hp-wmi:
- Use zero insize parameter only when supported
- Resolve WMI query failures on some devices
platform/mellanox:
- Add static in struct declaration.
- Spelling s/platfom/platform/
platform/x86/intel:
- hid: Add Surface Go to VGBS allow list
- pmc: Support Intel Raptorlake P
- Fix pmt_crashlog array reference
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Merge tag 'platform-drivers-x86-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Highlights:
- Fix hp-wmi regression on HP Omen laptops introduced in 5.18
- Several hardware-id additions
- A couple of other tiny fixes"
* tag 'platform-drivers-x86-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86/intel: hid: Add Surface Go to VGBS allow list
platform/x86: hp-wmi: Use zero insize parameter only when supported
platform/x86: hp-wmi: Resolve WMI query failures on some devices
platform/x86: gigabyte-wmi: Add support for B450M DS3H-CF
platform/x86: gigabyte-wmi: Add Z690M AORUS ELITE AX DDR4 support
platform/x86: barco-p50-gpio: Add check for platform_driver_register
platform/x86/intel: pmc: Support Intel Raptorlake P
platform/x86/intel: Fix pmt_crashlog array reference
platform/mellanox: Add static in struct declaration.
platform/mellanox: Spelling s/platfom/platform/
Tetsuo's patch to trigger build warnings if system-wide wq's are flushed
along with a TP type update and trivial comment update.
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Merge tag 'wq-for-5.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
"Tetsuo's patch to trigger build warnings if system-wide wq's are
flushed along with a TP type update and trivial comment update"
* tag 'wq-for-5.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Switch to new kerneldoc syntax for named variable macro argument
workqueue: Fix type of cpu in trace event
workqueue: Wrap flush_workqueue() using a macro
- Make the *.mod build rule portable for POSIX awk
- Fix regression of 'make nsdeps'
- Make scripts/check-local-export working for older bash versions
- Fix scripts/gdb to extract the .config data from vmlinux
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Merge tag 'kbuild-fixes-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Make the *.mod build rule portable for POSIX awk
- Fix regression of 'make nsdeps'
- Make scripts/check-local-export working for older bash versions
- Fix scripts/gdb to extract the .config data from vmlinux
* tag 'kbuild-fixes-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
scripts/gdb: change kernel config dumping method
scripts/check-local-export: avoid 'wait $!' for process substitution
scripts/nsdeps: adjust to the format change of *.mod files
kbuild: avoid regex RS for POSIX awk
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Merge tag '5.19-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs client fixes from Steve French:
"Three reconnect fixes, all for stable as well.
One of these three reconnect fixes does address a problem with
multichannel reconnect, but this does not include the additional
fix (still being tested) for dynamically detecting multichannel
adapter changes which will improve those reconnect scenarios even
more"
* tag '5.19-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: populate empty hostnames for extra channels
cifs: return errors during session setup during reconnects
cifs: fix reconnect on smb3 mount types
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Merge tag 'random-5.19-rc2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator fixes from Jason Donenfeld:
- A fix for a 5.19 regression for a case in which early device tree
initializes the RNG, which flips a static branch.
On most plaforms, jump labels aren't initialized until much later, so
this caused splats. On a few mailing list threads, we cooked up easy
fixes for arm64, arm32, and risc-v. But then things looked slightly
more involved for xtensa, powerpc, arc, and mips. And at that point,
when we're patching 7 architectures in a place before the console is
even available, it seems like the cost/risk just wasn't worth it.
So random.c works around it now by checking the already exported
`static_key_initialized` boolean, as though somebody already ran into
this issue in the past. I'm not super jazzed about that; it'd be
prettier to not have to complicate downstream code. But I suppose
it's practical.
- A few small code nits and adding a missing __init annotation.
- A change to the default config values to use the cpu and bootloader's
seeds for initializing the RNG earlier.
This brings them into line with what all the distros do (Fedora/RHEL,
Debian, Ubuntu, Gentoo, Arch, NixOS, Alpine, SUSE, and Void... at
least), and moreover will now give us test coverage in various test
beds that might have caught the above device tree bug earlier.
- A change to WireGuard CI's configuration to increase test coverage
around the RNG.
- A documentation comment fix to unrelated maintainerless CRC code that
I was asked to take, I guess because it has to do with polynomials
(which the RNG thankfully no longer uses).
* tag 'random-5.19-rc2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
wireguard: selftests: use maximum cpu features and allow rng seeding
random: remove rng_has_arch_random()
random: credit cpu and bootloader seeds by default
random: do not use jump labels before they are initialized
random: account for arch randomness in bits
random: mark bootloader randomness code as __init
random: avoid checking crng_ready() twice in random_init()
crc-itu-t: fix typo in CRC ITU-T polynomial comment
The Surface Go reports Chassis Type 9 (Laptop,) so the device needs to be
added to dmi_vgbs_allow_list to enable tablet mode when an attached Type
Cover is folded back.
BugLink: https://github.com/linux-surface/linux-surface/issues/837
Signed-off-by: Duke Lee <krnhotwings@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220607213654.5567-1-krnhotwings@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
commit be9d73e64957 ("platform/x86: hp-wmi: Fix 0x05 error code reported by
several WMI calls") and commit 12b19f14a21a ("platform/x86: hp-wmi: Fix
hp_wmi_read_int() reporting error (0x05)") cause ACPI BIOS Error (bug):
Attempt to CreateField of length zero (20211217/dsopcode-133) because of
the ACPI method HWMC, which unconditionally creates a Field of
size (insize*8) bits:
CreateField (Arg1, 0x80, (Local5 * 0x08), DAIN)
In cases where args->insize = 0, the Field size is 0, resulting in
an error.
Fix this by using zero insize only if 0x5 error code is returned
Tested on Omen 15 AMD (2020) board ID: 8786.
Fixes: be9d73e64957 ("platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls")
Signed-off-by: Bedant Patnaik <bedant.patnaik@gmail.com>
Tested-by: Jorge Lopez <jorge.lopez2@hp.com>
Link: https://lore.kernel.org/r/41be46743d21c78741232a47bbb5f1cdbcc3d21e.camel@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
WMI queries fail on some devices where the ACPI method HWMC
unconditionally attempts to create Fields beyond the buffer
if the buffer is too small, this breaks essential features
such as power profiles:
CreateByteField (Arg1, 0x10, D008)
CreateByteField (Arg1, 0x11, D009)
CreateByteField (Arg1, 0x12, D010)
CreateDWordField (Arg1, 0x10, D032)
CreateField (Arg1, 0x80, 0x0400, D128)
In cases where args->data had zero length, ACPI BIOS Error
(bug): AE_AML_BUFFER_LIMIT, Field [D008] at bit
offset/length 128/8 exceeds size of target Buffer (128 bits)
(20211217/dsopcode-198) was obtained.
ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT, Field [D009] at bit
offset/length 136/8 exceeds size of target Buffer (136bits)
(20211217/dsopcode-198)
The original code created a buffer size of 128 bytes regardless if
the WMI call required a smaller buffer or not. This particular
behavior occurs in older BIOS and reproduced in OMEN laptops. Newer
BIOS handles buffer sizes properly and meets the latest specification
requirements. This is the reason why testing with a dynamically
allocated buffer did not uncover any failures with the test systems at
hand.
This patch was tested on several OMEN, Elite, and Zbooks. It was
confirmed the patch resolves HPWMI_FAN GET/SET calls in an OMEN
Laptop 15-ek0xxx. No problems were reported when testing on several Elite
and Zbooks notebooks.
Fixes: 4b4967cbd268 ("platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated")
Signed-off-by: Jorge Lopez <jorge.lopez2@hp.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220608212923.8585-2-jorge.lopez2@hp.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The syntax without dots is available since commit 43756e347f21
("scripts/kernel-doc: Add support for named variable macro arguments").
The same HTML output is produced with and without this patch.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
- make irq_chip structs immutable in several Diolan and intel drivers to
get rid of the new warning we emit when fiddling with irq chips
- don't print error messages on probe deferral in gpio-dwapb
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Merge tag 'gpio-fixes-for-v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"A set of fixes. Most address the new warning we emit at build time
when irq chips are not immutable with some additional tweaks to
gpio-crystalcove from Andy and a small tweak to gpio-dwapd.
- make irq_chip structs immutable in several Diolan and intel drivers
to get rid of the new warning we emit when fiddling with irq chips
- don't print error messages on probe deferral in gpio-dwapb"
* tag 'gpio-fixes-for-v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: dwapb: Don't print error on -EPROBE_DEFER
gpio: dln2: make irq_chip immutable
gpio: sch: make irq_chip immutable
gpio: merrifield: make irq_chip immutable
gpio: wcove: make irq_chip immutable
gpio: crystalcove: Join function declarations and long lines
gpio: crystalcove: Use specific type and API for IRQ number
gpio: crystalcove: make irq_chip immutable
13 driver and 1 core patch. Nine of the driver patches are minor
fixes and reworks to lpfc and the rest are trivial and minor fixes.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Driver fixes and and one core patch.
Nine of the driver patches are minor fixes and reworks to lpfc and the
rest are trivial and minor fixes elsewhere"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: pmcraid: Fix missing resource cleanup in error case
scsi: ipr: Fix missing/incorrect resource cleanup in error case
scsi: mpt3sas: Fix out-of-bounds compiler warning
scsi: lpfc: Update lpfc version to 14.2.0.4
scsi: lpfc: Allow reduced polling rate for nvme_admin_async_event cmd completion
scsi: lpfc: Add more logging of cmd and cqe information for aborted NVMe cmds
scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
scsi: lpfc: Resolve NULL ptr dereference after an ELS LOGO is aborted
scsi: lpfc: Address NULL pointer dereference after starget_to_rport()
scsi: lpfc: Resolve some cleanup issues following SLI path refactoring
scsi: lpfc: Resolve some cleanup issues following abort path refactoring
scsi: lpfc: Correct BDE type for XMIT_SEQ64_WQE in lpfc_ct_reject_event()
scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
scsi: sd: Fix interpretation of VPD B9h length
Fixes all over the place, most notably fixes for latent
bugs in drivers that got exposed by suppressing
interrupts before DRIVER_OK, which in turn has been
done by 8b4ec69d7e09 ("virtio: harden vring IRQ").
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Fixes all over the place, most notably fixes for latent bugs in
drivers that got exposed by suppressing interrupts before DRIVER_OK,
which in turn has been done by 8b4ec69d7e09 ("virtio: harden vring
IRQ")"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
um: virt-pci: set device ready in probe()
vdpa: make get_vq_group and set_group_asid optional
virtio: Fix all occurences of the "the the" typo
vduse: Fix NULL pointer dereference on sysfs access
vringh: Fix loop descriptors check in the indirect cases
vdpa/mlx5: clean up indenting in handle_ctrl_vlan()
vdpa/mlx5: fix error code for deleting vlan
virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
vdpa/mlx5: Fix syntax errors in comments
virtio-rng: make device ready before making request
Feng zhou says:
====================
From: Feng Zhou <zhoufeng.zf@bytedance.com>
We encountered bad case on big system with 96 CPUs that
alloc_htab_elem() would last for 1ms. The reason is that after the
prealloc hashtab has no free elems, when trying to update, it will still
grab spin_locks of all cpus. If there are multiple update users, the
competition is very serious.
0001: Use head->first to check whether the free list is empty or not before taking
the lock.
0002: Add benchmark to reproduce this worst case.
Changelog:
v5->v6: Addressed comments from Alexei Starovoitov.
- Adjust the commit log.
some details in here:
https://lore.kernel.org/all/20220608021050.47279-1-zhoufeng.zf@bytedance.com/
v4->v5: Addressed comments from Alexei Starovoitov.
- Use head->first.
- Use cpu+max_entries.
some details in here:
https://lore.kernel.org/bpf/20220601084149.13097-1-zhoufeng.zf@bytedance.com/
v3->v4: Addressed comments from Daniel Borkmann.
- Use READ_ONCE/WRITE_ONCE.
some details in here:
https://lore.kernel.org/all/20220530091340.53443-1-zhoufeng.zf@bytedance.com/
v2->v3: Addressed comments from Alexei Starovoitov, Andrii Nakryiko.
- Adjust the way the benchmark is tested.
- Adjust the code format.
some details in here:
https://lore.kernel.org/all/20220524075306.32306-1-zhoufeng.zf@bytedance.com/T/
v1->v2: Addressed comments from Alexei Starovoitov.
- add a benchmark to reproduce the issue.
- Adjust the code format that avoid adding indent.
some details in here:
https://lore.kernel.org/all/877ac441-045b-1844-6938-fcaee5eee7f2@bytedance.com/T/
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add benchmark for hash_map to reproduce the worst case
that non-stop update when map's free is zero.
Just like this:
./run_bench_bpf_hashmap_full_update.sh
Setting up benchmark 'bpf-hashmap-ful-update'...
Benchmark 'bpf-hashmap-ful-update' started.
1:hash_map_full_perf 555830 events per sec
...
Signed-off-by: Feng Zhou <zhoufeng.zf@bytedance.com>
Link: https://lore.kernel.org/r/20220610023308.93798-3-zhoufeng.zf@bytedance.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This patch use head->first in pcpu_freelist_head to check freelist
having free or not. If having, grab spin_lock, or check next cpu's
freelist.
Before patch: hash_map performance
./map_perf_test 1
0:hash_map_perf pre-alloc 1043397 events per sec
...
The average of the test results is around 1050000 events per sec.
hash_map the worst: no free
./run_bench_bpf_hashmap_full_update.sh
Setting up benchmark 'bpf-hashmap-ful-update'...
Benchmark 'bpf-hashmap-ful-update' started.
1:hash_map_full_perf 15687 events per sec
...
The average of the test results is around 16000 events per sec.
ftrace trace:
0) | htab_map_update_elem() {
0) | __pcpu_freelist_pop() {
0) | _raw_spin_lock()
0) | _raw_spin_unlock()
0) | ...
0) + 25.188 us | }
0) + 28.439 us | }
The test machine is 16C, trying to get spin_lock 17 times, in addition
to 16c, there is an extralist.
after patch: hash_map performance
./map_perf_test 1
0:hash_map_perf pre-alloc 1053298 events per sec
...
The average of the test results is around 1050000 events per sec.
hash_map worst: no free
./run_bench_bpf_hashmap_full_update.sh
Setting up benchmark 'bpf-hashmap-ful-update'...
Benchmark 'bpf-hashmap-ful-update' started.
1:hash_map_full_perf 555830 events per sec
...
The average of the test results is around 550000 events per sec.
ftrace trace:
0) | htab_map_update_elem() {
0) | alloc_htab_elem() {
0) 0.586 us | __pcpu_freelist_pop();
0) 0.945 us | }
0) 8.669 us | }
It can be seen that after adding this patch, the map performance is
almost not degraded, and when free=0, first check head->first instead of
directly acquiring spin_lock.
Co-developed-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Feng Zhou <zhoufeng.zf@bytedance.com>
Link: https://lore.kernel.org/r/20220610023308.93798-2-zhoufeng.zf@bytedance.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Commit 6c77676645ad ("iov_iter: Fix iter_xarray_get_pages{,_alloc}()")
introduced a problem on some 32-bit architectures (at least arm, xtensa,
csky,sparc and mips), that have a 'size_t' that is 'unsigned int'.
The reason is that we now do
min(nr * PAGE_SIZE - offset, maxsize);
where 'nr' and 'offset' and both 'unsigned int', and PAGE_SIZE is
'unsigned long'. As a result, the normal C type rules means that the
first argument to 'min()' ends up being 'unsigned long'.
In contrast, 'maxsize' is of type 'size_t'.
Now, 'size_t' and 'unsigned long' are always the same physical type in
the kernel, so you'd think this doesn't matter, and from an actual
arithmetic standpoint it doesn't.
But on 32-bit architectures 'size_t' is commonly 'unsigned int', even if
it could also be 'unsigned long'. In that situation, both are unsigned
32-bit types, but they are not the *same* type.
And as a result 'min()' will complain about the distinct types (ignore
the "pointer types" part of the error message: that's an artifact of the
way we have made 'min()' check types for being the same):
lib/iov_iter.c: In function 'iter_xarray_get_pages':
include/linux/minmax.h:20:35: error: comparison of distinct pointer types lacks a cast [-Werror]
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
lib/iov_iter.c:1464:16: note: in expansion of macro 'min'
1464 | return min(nr * PAGE_SIZE - offset, maxsize);
| ^~~
This was not visible on 64-bit architectures (where we always define
'size_t' to be 'unsigned long').
Force these cases to use 'min_t(size_t, x, y)' to make the type explicit
and avoid the issue.
[ Nit-picky note: technically 'size_t' doesn't have to match 'unsigned
long' arithmetically. We've certainly historically seen environments
with 16-bit address spaces and 32-bit 'unsigned long'.
Similarly, even in 64-bit modern environments, 'size_t' could be its
own type distinct from 'unsigned long', even if it were arithmetically
identical.
So the above type commentary is only really descriptive of the kernel
environment, not some kind of universal truth for the kinds of wild
and crazy situations that are allowed by the C standard ]
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/all/YqRyL2sIqQNDfky2@debian/
Cc: Jeff Layton <jlayton@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
By forcing the maximum CPU that QEMU has available, we expose additional
capabilities, such as the RNDR instruction, which increases test
coverage. This then allows the CI to skip the fake seeding step in some
cases. Also enable STRICT_KERNEL_RWX to catch issues related to early
jump labels when the RNG is initialized at boot.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
MAGIC_START("IKCFG_ST") and MAGIC_END("IKCFG_ED") are moved out
from the kernel_config_data variable.
Thus, we parse kernel_config_data directly instead of considering
offset of MAGIC_START and MAGIC_END.
Fixes: 13610aa908dc ("kernel/configs: use .incbin directive to embed config_data.gz")
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Previously the traffic class field is ignored while firmware has
already supported to pedit flowinfo fields, including traffic
class and flow label, now add it back.
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Link: https://lore.kernel.org/r/20220609080136.151830-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
