| Age | Commit message (Collapse) | Author |
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During reallocation of RX buffers, new DMA mappings are created for
those buffers.
steps for reproduction:
while :
do
for ((i=0; i<=8160; i=i+32))
do
ethtool -G enp130s0f0 rx $i tx $i
sleep 0.5
ethtool -g enp130s0f0
done
done
This resulted in crash:
i40e 0000:01:00.1: Unable to allocate memory for the Rx descriptor ring, size=65536
Driver BUG
WARNING: CPU: 0 PID: 4300 at net/core/xdp.c:141 xdp_rxq_info_unreg+0x43/0x50
Call Trace:
i40e_free_rx_resources+0x70/0x80 [i40e]
i40e_set_ringparam+0x27c/0x800 [i40e]
ethnl_set_rings+0x1b2/0x290
genl_family_rcv_msg_doit.isra.15+0x10f/0x150
genl_family_rcv_msg+0xb3/0x160
? rings_fill_reply+0x1a0/0x1a0
genl_rcv_msg+0x47/0x90
? genl_family_rcv_msg+0x160/0x160
netlink_rcv_skb+0x4c/0x120
genl_rcv+0x24/0x40
netlink_unicast+0x196/0x230
netlink_sendmsg+0x204/0x3d0
sock_sendmsg+0x4c/0x50
__sys_sendto+0xee/0x160
? handle_mm_fault+0xbe/0x1e0
? syscall_trace_enter+0x1d3/0x2c0
__x64_sys_sendto+0x24/0x30
do_syscall_64+0x5b/0x1a0
entry_SYSCALL_64_after_hwframe+0x65/0xca
RIP: 0033:0x7f5eac8b035b
Missing register, driver bug
WARNING: CPU: 0 PID: 4300 at net/core/xdp.c:119 xdp_rxq_info_unreg_mem_model+0x69/0x140
Call Trace:
xdp_rxq_info_unreg+0x1e/0x50
i40e_free_rx_resources+0x70/0x80 [i40e]
i40e_set_ringparam+0x27c/0x800 [i40e]
ethnl_set_rings+0x1b2/0x290
genl_family_rcv_msg_doit.isra.15+0x10f/0x150
genl_family_rcv_msg+0xb3/0x160
? rings_fill_reply+0x1a0/0x1a0
genl_rcv_msg+0x47/0x90
? genl_family_rcv_msg+0x160/0x160
netlink_rcv_skb+0x4c/0x120
genl_rcv+0x24/0x40
netlink_unicast+0x196/0x230
netlink_sendmsg+0x204/0x3d0
sock_sendmsg+0x4c/0x50
__sys_sendto+0xee/0x160
? handle_mm_fault+0xbe/0x1e0
? syscall_trace_enter+0x1d3/0x2c0
__x64_sys_sendto+0x24/0x30
do_syscall_64+0x5b/0x1a0
entry_SYSCALL_64_after_hwframe+0x65/0xca
RIP: 0033:0x7f5eac8b035b
This was caused because of new buffers with different RX ring count should
substitute older ones, but those buffers were freed in
i40e_configure_rx_ring and reallocated again with i40e_alloc_rx_bi,
thus kfree on rx_bi caused leak of already mapped DMA.
Fix this by reallocating ZC with rx_bi_zc struct when BPF program loads. Additionally
reallocate back to rx_bi when BPF program unloads.
If BPF program is loaded/unloaded and XSK pools are created, reallocate
RX queues accordingly in XSP_SETUP_XSK_POOL handler.
Fixes: be1222b585fd ("i40e: Separate kernel allocated rx_bi rings from AF_XDP rings")
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Chandan <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: David S. Miller <davem@davemloft.net>
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The switch sends autocast mib in little-endian. This is problematic for
big-endian system as the values needs to be converted.
Fix this by converting each mib value to cpu byte order.
Fixes: 5c957c7ca78c ("net: dsa: qca8k: add support for mib autocast in Ethernet packet")
Tested-by: Pawel Dembicki <paweldembicki@gmail.com>
Tested-by: Lech Perczak <lech.perczak@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The header and the data of the skb for the inband mgmt requires
to be in little-endian. This is problematic for big-endian system
as the mgmt header is written in the cpu byte order.
Fix this by converting each value for the mgmt header and data to
little-endian, and convert to cpu byte order the mgmt header and
data sent by the switch.
Fixes: 5950c7c0a68c ("net: dsa: qca8k: add support for mgmt read/write in Ethernet packet")
Tested-by: Pawel Dembicki <paweldembicki@gmail.com>
Tested-by: Lech Perczak <lech.perczak@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Lech Perczak <lech.perczak@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull more drm updates from Dave Airlie:
"Round of fixes for the merge window stuff, bunch of amdgpu and i915
changes, this should have the gcc11 warning fix, amongst other
changes.
amdgpu:
- DC mutex fix
- DC SubVP fixes
- DCN 3.2.x fixes
- DCN 3.1.x fixes
- SDMA 6.x fixes
- Enable DPIA for 3.1.4
- VRR fixes
- VRAM BO swapping fix
- Revert dirty fb helper change
- SR-IOV suspend/resume fixes
- Work around GCC array bounds check fail warning
- UMC 8.10 fixes
- Misc fixes and cleanups
i915:
- Round to closest in g4x+ HDMI clock readout
- Update MOCS table for EHL
- Fix PSR_IMR/IIR field handling
- Fix watermark calculations for gen12+/DG2 modifiers
- Reject excessive dotclocks early
- Fix revocation of non-persistent contexts
- Handle migration for dpt
- Fix display problems after resume
- Allow control over the flags when migrating
- Consider DG2_RC_CCS_CC when migrating buffers"
* tag 'drm-next-2022-10-14' of git://anongit.freedesktop.org/drm/drm: (110 commits)
drm/amd/display: Add HUBP surface flip interrupt handler
drm/i915/display: consider DG2_RC_CCS_CC when migrating buffers
drm/i915: allow control over the flags when migrating
drm/amd/display: Simplify bool conversion
drm/amd/display: fix transfer function passed to build_coefficients()
drm/amd/display: add a license to cursor_reg_cache.h
drm/amd/display: make virtual_disable_link_output static
drm/amd/display: fix indentation in dc.c
drm/amd/display: make dcn32_split_stream_for_mpc_or_odm static
drm/amd/display: fix build error on arm64
drm/amd/display: 3.2.207
drm/amd/display: Clean some DCN32 macros
drm/amdgpu: Add poison mode query for umc v8_10_0
drm/amdgpu: Update umc v8_10_0 headers
drm/amdgpu: fix coding style issue for mca notifier
drm/amdgpu: define convert_error_address for umc v8.7
drm/amdgpu: define RAS convert_error_address API
drm/amdgpu: remove check for CE in RAS error address query
drm/i915: Fix display problems after resume
drm/amd/display: fix array-bounds error in dc_stream_remove_writeback() [take 2]
...
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Pull more block updates from Jens Axboe:
"Fixes that ended up landing later than the initial block pull request.
Nothing really major in here:
- NVMe pull request via Christoph:
- add NVME_QUIRK_BOGUS_NID for Lexar NM760 (Abhijit)
- add NVME_QUIRK_NO_DEEPEST_PS to avoid the deepest sleep state
on ZHITAI TiPro5000 SSDs (Xi Ruoyao)
- fix possible hang caused during ctrl deletion (Sagi Grimberg)
- fix possible hang in live ns resize with ANA access (Sagi
Grimberg)
- Proactively avoid a sign extension issue with the queue flags
(Brian)
- Regression fix for hidden disks (Christoph)
- Update OPAL maintainers entry (Jonathan)
- blk-wbt regression initialization fix (Yu)"
* tag 'block-6.1-2022-10-13' of git://git.kernel.dk/linux:
nvme-multipath: fix possible hang in live ns resize with ANA access
nvme-pci: avoid the deepest sleep state on ZHITAI TiPro5000 SSDs
nvme-pci: add NVME_QUIRK_BOGUS_NID for Lexar NM760
nvme-tcp: fix possible hang caused during ctrl deletion
nvme-rdma: fix possible hang caused during ctrl deletion
block: fix leaking minors of hidden disks
block: avoid sign extend problem with default queue flags mask
blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init()
block: Remove the repeat word 'can'
MAINTAINERS: Update SED-Opal Maintainers
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-fixes-6.1-2022-10-12:
amdgpu:
- DC mutex fix
- DC SubVP fixes
- DCN 3.2.x fixes
- DCN 3.1.x fixes
- SDMA 6.x fixes
- Enable DPIA for 3.1.4
- VRR fixes
- VRAM BO swapping fix
- Revert dirty fb helper change
- SR-IOV suspend/resume fixes
- Work around GCC array bounds check fail warning
- UMC 8.10 fixes
- Misc fixes and cleanups
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221012162650.8810-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Fix revocation of non-persistent contexts (Tvrtko Ursulin)
- Handle migration for dpt (Matthew Auld)
- Fix display problems after resume (Thomas Hellström)
- Allow control over the flags when migrating (Matthew Auld)
- Consider DG2_RC_CCS_CC when migrating buffers (Matthew Auld)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y0gK9QmCmktLLzqp@tursulin-desk
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Compiler warnings：
drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_set':
drivers/rtc/rtc-rv3028.c:559:20: warning: statement will never be executed [-Wswitch-unreachable]
559 | u8 mode;
| ^~~~
drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_get':
drivers/rtc/rtc-rv3028.c:526:21: warning: statement will never be executed [-Wswitch-unreachable]
526 | u32 value;
| ^~~~~
Fix it by moving the variable declaration to the beginning of the function.
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Ke Sun <sunke@kylinos.cn>
Link: https://lore.kernel.org/r/20221008071321.1799971-1-sunke@kylinos.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Because acpi_install_fixed_event_handler() enables the event
automatically on success, it is incorrect to call it before the
handler routine passed to it is ready to handle events.
Unfortunately, the rtc-cmos driver does exactly the incorrect thing
by calling cmos_wake_setup(), which passes rtc_handler() to
acpi_install_fixed_event_handler(), before cmos_do_probe(), because
rtc_handler() uses dev_get_drvdata() to get to the cmos object
pointer and the driver data pointer is only populated in
cmos_do_probe().
This leads to a NULL pointer dereference in rtc_handler() on boot
if the RTC fixed event happens to be active at the init time.
To address this issue, change the initialization ordering of the
driver so that cmos_wake_setup() is always called after a successful
cmos_do_probe() call.
While at it, change cmos_pnp_probe() to call cmos_do_probe() after
the initial if () statement used for computing the IRQ argument to
be passed to cmos_do_probe() which is cleaner than calling it in
each branch of that if () (local variable "irq" can be of type int,
because it is passed to that function as an argument of type int).
Note that commit 6492fed7d8c9 ("rtc: rtc-cmos: Do not check
ACPI_FADT_LOW_POWER_S0") caused this issue to affect a larger number
of systems, because previously it only affected systems with
ACPI_FADT_LOW_POWER_S0 set, but it is present regardless of that
commit.
Fixes: 6492fed7d8c9 ("rtc: rtc-cmos: Do not check ACPI_FADT_LOW_POWER_S0")
Fixes: a474aaedac99 ("rtc-cmos: move wake setup from ACPI glue into RTC driver")
Link: https://lore.kernel.org/linux-acpi/20221010141630.zfzi7mk7zvnmclzy@techsingularity.net/
Reported-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Mel Gorman <mgorman@techsingularity.net>
Link: https://lore.kernel.org/r/5629262.DvuYhMxLoT@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Pull MMC fixes from Ulf Hansson:
"MMC core:
- Add SD card quirk for broken discard
MMC host:
- renesas_sdhi: Fix clock rounding errors
- sdhci-sprd: Fix minimum clock limit to detect cards
- sdhci-tegra: Use actual clock rate for SW tuning correction"
* tag 'mmc-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-sprd: Fix minimum clock limit
mmc: sdhci-tegra: Use actual clock rate for SW tuning correction
mmc: renesas_sdhi: Fix rounding errors
mmc: core: Add SD card quirk for broken discard
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Use an exclamation mark to note which of the properties was overridden.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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LENOVO IdeaPad Flex 5 is ryzen-5 based and the commit below removed IRQ
overriding for those. This broke touchscreen and trackpad:
i2c_designware AMDI0010:00: controller timed out
i2c_designware AMDI0010:03: controller timed out
i2c_hid_acpi i2c-MSFT0001:00: failed to reset device: -61
i2c_designware AMDI0010:03: controller timed out
...
i2c_hid_acpi i2c-MSFT0001:00: can't add hid device: -61
i2c_hid_acpi: probe of i2c-MSFT0001:00 failed with error -61
White-list this specific model in the override_table.
For this to work, the ZEN test needs to be put below the table walk.
Fixes: 37c81d9f1d1b (ACPI: resource: skip IRQ override on AMD Zen platforms)
Link: https://bugzilla.suse.com/show_bug.cgi?id=1203794
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If there is no user space consumer of extlog_mem trace records, then
Linux properly handles multiple error records in an ELOG block
extlog_print()
print_extlog_rcd()
__print_extlog_rcd()
cper_estatus_print()
apei_estatus_for_each_section()
But the other code path hard codes looking for a single record to
output a trace record.
Fix by using the same apei_estatus_for_each_section() iterator
to step over all records.
Fixes: 2dfb7d51a61d ("trace, RAS: Add eMCA trace event interface")
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Change num_ghes from int to unsigned int, preventing an overflow
and causing subsequent vmalloc() to fail.
The overflow happens in ghes_estatus_pool_init() when calculating
len during execution of the statement below as both multiplication
operands here are signed int:
len += (num_ghes * GHES_ESOURCE_PREALLOC_MAX_SIZE);
The following call trace is observed because of this bug:
[ 9.317108] swapper/0: vmalloc error: size 18446744071562596352, exceeds total pages, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0-1
[ 9.317131] Call Trace:
[ 9.317134] <TASK>
[ 9.317137] dump_stack_lvl+0x49/0x5f
[ 9.317145] dump_stack+0x10/0x12
[ 9.317146] warn_alloc.cold+0x7b/0xdf
[ 9.317150] ? __device_attach+0x16a/0x1b0
[ 9.317155] __vmalloc_node_range+0x702/0x740
[ 9.317160] ? device_add+0x17f/0x920
[ 9.317164] ? dev_set_name+0x53/0x70
[ 9.317166] ? platform_device_add+0xf9/0x240
[ 9.317168] __vmalloc_node+0x49/0x50
[ 9.317170] ? ghes_estatus_pool_init+0x43/0xa0
[ 9.317176] vmalloc+0x21/0x30
[ 9.317177] ghes_estatus_pool_init+0x43/0xa0
[ 9.317179] acpi_hest_init+0x129/0x19c
[ 9.317185] acpi_init+0x434/0x4a4
[ 9.317188] ? acpi_sleep_proc_init+0x2a/0x2a
[ 9.317190] do_one_initcall+0x48/0x200
[ 9.317195] kernel_init_freeable+0x221/0x284
[ 9.317200] ? rest_init+0xe0/0xe0
[ 9.317204] kernel_init+0x1a/0x130
[ 9.317205] ret_from_fork+0x22/0x30
[ 9.317208] </TASK>
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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These counters were part of the ISA when we froze the uABI, removing
them breaks userspace.
Link: https://lore.kernel.org/all/YxEhC%2FmDW1lFt36J@aurel32.net/
Fixes: e9991434596f ("RISC-V: Add perf platform driver based on SBI PMU extension")
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220928131807.30386-1-palmer@rivosinc.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Zong Li <zong.li@sifive.com> says:
Since composable cache may be L3 cache if private L2 cache exists, we
should use its original name "composable cache" to prevent confusion.
This patchset contains the modification which is related to ccache, such
as DT binding and EDAC driver.
* b4-shazam-merge:
riscv: Add cache information in AUX vector
soc: sifive: ccache: define the macro for the register shifts
soc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes
soc: sifive: ccache: reduce printing on init
soc: sifive: ccache: determine the cache level from dts
soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.
dt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache
Link: https://lore.kernel.org/r/20220913061817.22564-1-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Define the macro for the register shifts, it could make the code be
more readable
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-7-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Use the pr_fmt() macro to prefix all the output with "CCACHE:"
to avoid having to write it out each time, or make a large diff
when the next change comes along.
Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-6-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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The driver prints out 6 lines on startup, which can easily be redcued
to two lines without losing any information.
Note, to make the types work better, uint64_t has been replaced with
ULL to make the unsigned long long match the format in the print
statement.
Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-5-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Composable cache could be L2 or L3 cache, use 'cache-level' property of
device node to determine the level.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-4-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Since composable cache may be L3 cache if there is a L2 cache, we should
use its original name composable cache to prevent confusion.
There are some new lines were generated due to adding the compatible
"sifive,ccache0" into ID table and indent requirement.
The sifive L2 has been renamed to sifive CCACHE, EDAC driver needs to
apply the change as well.
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Zong Li <zong.li@sifive.com>
Co-developed-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-3-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, and wifi.
Current release - regressions:
- Revert "net/sched: taprio: make qdisc_leaf() see the
per-netdev-queue pfifo child qdiscs", it may cause crashes when the
qdisc is reconfigured
- inet: ping: fix splat due to packet allocation refactoring in inet
- tcp: clean up kernel listener's reqsk in inet_twsk_purge(), fix UAF
due to races when per-netns hash table is used
Current release - new code bugs:
- eth: adin1110: check in netdev_event that netdev belongs to driver
- fixes for PTR_ERR() vs NULL bugs in driver code, from Dan and co.
Previous releases - regressions:
- ipv4: handle attempt to delete multipath route when fib_info
contains an nh reference, avoid oob access
- wifi: fix handful of bugs in the new Multi-BSSID code
- wifi: mt76: fix rate reporting / throughput regression on mt7915
and newer, fix checksum offload
- wifi: iwlwifi: mvm: fix double list_add at
iwl_mvm_mac_wake_tx_queue (other cases)
- wifi: mac80211: do not drop packets smaller than the LLC-SNAP
header on fast-rx
Previous releases - always broken:
- ieee802154: don't warn zero-sized raw_sendmsg()
- ipv6: ping: fix wrong checksum for large frames
- mctp: prevent double key removal and unref
- tcp/udp: fix memory leaks and races around IPV6_ADDRFORM
- hv_netvsc: fix race between VF offering and VF association message
Misc:
- remove -Warray-bounds silencing in the drivers, compilers fixed"
* tag 'net-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
sunhme: fix an IS_ERR() vs NULL check in probe
net: marvell: prestera: fix a couple NULL vs IS_ERR() checks
kcm: avoid potential race in kcm_tx_work
tcp: Clean up kernel listener's reqsk in inet_twsk_purge()
net: phy: micrel: Fixes FIELD_GET assertion
openvswitch: add nf_ct_is_confirmed check before assigning the helper
tcp: Fix data races around icsk->icsk_af_ops.
ipv6: Fix data races around sk->sk_prot.
tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct().
udp: Call inet6_destroy_sock() in setsockopt(IPV6_ADDRFORM).
tcp/udp: Fix memory leak in ipv6_renew_options().
mctp: prevent double key removal and unref
selftests: netfilter: Fix nft_fib.sh for all.rp_filter=1
netfilter: rpfilter/fib: Populate flowic_l3mdev field
selftests: netfilter: Test reverse path filtering
net/mlx5: Make ASO poll CQ usable in atomic context
tcp: cdg: allow tcp_cdg_release() to be called multiple times
inet: ping: fix recent breakage
ipv6: ping: fix wrong checksum for large frames
net: ethernet: ti: am65-cpsw: set correct devlink flavour for unused ports
...
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Pull virtio fixes from Michael Tsirkin:
- Fix a regression in virtio pci on power
- Add a reviewer for ifcvf
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vdpa/ifcvf: add reviewer
virtio_pci: use irq to detect interrupt support
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git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- new driver for Exar/MaxLinear XR28V38x
- support for exynosautov9 SoC
- support for Renesas R-Car V5H (R8A779G0) and RZ/V2M (r9a09g011) SoC
- support for imx93
- several other fixes and improvements
* tag 'linux-watchdog-6.1-rc1' of git://www.linux-watchdog.org/linux-watchdog: (36 commits)
watchdog: twl4030_wdt: add missing mod_devicetable.h include
dt-bindings: watchdog: migrate mt7621 text bindings to YAML
watchdog: sp5100_tco: Add "action" module parameter
watchdog: imx93: add watchdog timer on imx93
watchdog: imx7ulp_wdt: init wdog when it was active
watchdog: imx7ulp_wdt: Handle wdog reconfigure failure
watchdog: imx7ulp_wdt: Fix RCS timeout issue
watchdog: imx7ulp_wdt: Check CMD32EN in wdog init
watchdog: imx7ulp: Add explict memory barrier for unlock sequence
watchdog: imx7ulp: Move suspend/resume to noirq phase
watchdog: rti-wdt:using the pm_runtime_resume_and_get to simplify the code
dt-bindings: watchdog: rockchip: add rockchip,rk3128-wdt
watchdog: s3c2410_wdt: support exynosautov9 watchdog
dt-bindings: watchdog: add exynosautov9 compatible
watchdog: npcm: Enable clock if provided
watchdog: meson: keep running if already active
watchdog: dt-bindings: atmel,at91sam9-wdt: convert to json-schema
watchdog: armada_37xx_wdt: Fix .set_timeout callback
watchdog: sa1100: make variable sa1100dog_driver static
watchdog: w83977f_wdt: Fix comment typo
...
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The devm_request_region() function does not return error pointers, it
returns NULL on error.
Fixes: 914d9b2711dd ("sunhme: switch to devres")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Link: https://lore.kernel.org/r/Y0bWzJL8JknX8MUf@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The __prestera_nexthop_group_create() function returns NULL on error
and the prestera_nexthop_group_get() returns error pointers. Fix these
two checks.
Fixes: 0a23ae237171 ("net: marvell: prestera: Add router nexthops ABI")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/Y0bWq+7DoKK465z8@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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commit 71491c54eafa ("virtio_pci: don't try to use intxif pin is zero")
breaks virtio_pci on powerpc, when running as a qemu guest.
vp_find_vqs() bails out because pci_dev->pin == 0.
But pci_dev->irq is populated correctly, so vp_find_vqs_intx() would
succeed if we called it - which is what the code used to do.
This seems to happen because pci_dev->pin is not populated in
pci_assign_irq(). A PCI core bug? Maybe.
However Linus said:
I really think that that is basically the only time you should use
that 'pci_dev->pin' thing: it basically exists not for "does this
device have an IRQ", but for "what is the routing of this irq on this
device".
and
The correct way to check for "no irq" doesn't use NO_IRQ at all, it just does
if (dev->irq) ...
so let's just check irq and be done with it.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Fixes: 71491c54eafa ("virtio_pci: don't try to use intxif pin is zero")
Cc: "Angus Chen" <angus.chen@jaguarmicro.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221012220312.308522-1-mst@redhat.com>
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If our HSM clock has not been properly initialized, any register access
will silently lock up the system.
Let's check that this can't happen by adding a check for the rate before
any register access, and error out otherwise.
Link: https://lore.kernel.org/dri-devel/20220922145448.w3xfywkn5ecak2et@pengutronix.de/
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220929-rpi-pi3-unplugged-fixes-v1-2-cd22e962296c@cerno.tech
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This is a revert of commit fd5894fa2413 ("drm/vc4: hdmi: Remove clock
rate initialization"), with the code slightly moved around.
It turns out that we can't downright remove that code from the driver,
since the Pi0-3 and Pi4 are in different cases, and it only works for
the Pi4.
Indeed, the commit mentioned above was relying on the RaspberryPi
firmware clocks driver to initialize the rate if it wasn't done by the
firmware. However, the Pi0-3 are using the clk-bcm2835 clock driver that
wasn't doing this initialization. We therefore end up with the clock not
being assigned a rate, and the CPU stalling when trying to access a
register.
We can't move that initialization in the clk-bcm2835 driver, since the
HSM clock we depend on is actually part of the HDMI power domain, so any
rate setup is only valid when the power domain is enabled. Thus, we
reinstated the minimum rate setup at runtime_suspend, which should
address both issues.
Link: https://lore.kernel.org/dri-devel/20220922145448.w3xfywkn5ecak2et@pengutronix.de/
Fixes: fd5894fa2413 ("drm/vc4: hdmi: Remove clock rate initialization")
Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220929-rpi-pi3-unplugged-fixes-v1-1-cd22e962296c@cerno.tech
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The VC4 HDMI controller driver relies on the HDMI codec ASoC driver. In
order to set it up properly, in vc4_hdmi_audio_init(), our HDMI driver
will register a device matching the HDMI codec driver, and then register
an ASoC card using that codec.
However, if vc4 is compiled as a module, chances are that the hdmi-codec
driver will be too. In such a case, the module loader will have a very
narrow window to load the module between the device registration and the
card registration.
If it fails to load the module in time, the card registration will fail
with EPROBE_DEFER, and we'll abort the audio initialisation,
unregistering the HDMI codec device in the process.
The next time the bind callback will be run, it's likely that we end up
missing that window again, effectively preventing vc4 to probe entirely.
In order to prevent this, we can create a soft dependency of the vc4
driver on the HDMI codec one so that we're sure the HDMI codec will be
loaded before the VC4 module is, and thus we'll never end up in the
previous situation.
Fixes: 91e99e113929 ("drm/vc4: hdmi: Register HDMI codec")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220902144111.3424560-1-maxime@cerno.tech
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
More wireless fixes for 6.1
This has only the fixes for the scan parsing issues.
* tag 'wireless-2022-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: cfg80211: update hidden BSSes to avoid WARN_ON
wifi: mac80211: fix crash in beacon protection for P2P-device
wifi: mac80211_hwsim: avoid mac80211 warning on bad rate
wifi: cfg80211: avoid nontransmitted BSS list corruption
wifi: cfg80211: fix BSS refcounting bugs
wifi: cfg80211: ensure length byte is present before access
wifi: mac80211: fix MBSSID parsing use-after-free
wifi: cfg80211/mac80211: reject bad MBSSID elements
wifi: cfg80211: fix u8 overflow in cfg80211_update_notlisted_nontrans()
====================
Link: https://lore.kernel.org/r/20221013100522.46346-1-johannes@sipsolutions.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Pull in the fixes for various scan parsing bugs found by
Sönke Huster by fuzzing.
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|
Currently zram will adjust its fops to a version which does not contain
rw_page when a backing device has been assigned. This is done to prevent
upper layers from assuming a synchronous operation when a page may have
been written back. This forces every operation through bio which has
overhead associated with bio_alloc/frees.
The code can be simplified to always expose an rw_page method and only in
the rare event that a page is written back we instead will return
-EOPNOTSUPP forcing the upper layer to fallback to bio.
Link: https://lkml.kernel.org/r/20221003144832.2906610-1-bgeffon@google.com
Signed-off-by: Brian Geffon <bgeffon@google.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Rom Lemarchand <romlem@google.com>
Cc: Suleiman Souhlal <suleiman@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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When the module is unloaded or a GPU is unbound from the module it is
possible for device private pages to still be mapped in currently running
processes. This can lead to a hangs and RCU stall warnings when unbinding
the device as memunmap_pages() will wait in an uninterruptible state until
all device pages have been freed which may never happen.
Fix this by migrating device mappings back to normal CPU memory prior to
freeing the GPU memory chunks and associated device private pages.
Link: https://lkml.kernel.org/r/66277601fb8fda9af408b33da9887192bf895bda.1664366292.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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nouveau_dmem_fault_copy_one() is used during handling of CPU faults via
the migrate_to_ram() callback and is used to copy data from GPU to CPU
memory. It is currently specific to fault handling, however a future
patch implementing eviction of data during teardown needs similar
functionality.
Refactor out the core functionality so that it is not specific to fault
handling.
Link: https://lkml.kernel.org/r/20573d7b4e641a78fde9935f948e64e71c9e709e.1664366292.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Since 27674ef6c73f ("mm: remove the extra ZONE_DEVICE struct page
refcount") device private pages have no longer had an extra reference
count when the page is in use. However before handing them back to the
owning device driver we add an extra reference count such that free pages
have a reference count of one.
This makes it difficult to tell if a page is free or not because both free
and in use pages will have a non-zero refcount. Instead we should return
pages to the drivers page allocator with a zero reference count. Kernel
code can then safely use kernel functions such as get_page_unless_zero().
Link: https://lkml.kernel.org/r/cf70cf6f8c0bdb8aaebdbfb0d790aea4c683c3c6.1664366292.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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|
Patch series "Fix several device private page reference counting issues",
v2
This series aims to fix a number of page reference counting issues in
drivers dealing with device private ZONE_DEVICE pages. These result in
use-after-free type bugs, either from accessing a struct page which no
longer exists because it has been removed or accessing fields within the
struct page which are no longer valid because the page has been freed.
During normal usage it is unlikely these will cause any problems. However
without these fixes it is possible to crash the kernel from userspace.
These crashes can be triggered either by unloading the kernel module or
unbinding the device from the driver prior to a userspace task exiting.
In modules such as Nouveau it is also possible to trigger some of these
issues by explicitly closing the device file-descriptor prior to the task
exiting and then accessing device private memory.
This involves some minor changes to both PowerPC and AMD GPU code.
Unfortunately I lack hardware to test either of those so any help there
would be appreciated. The changes mimic what is done in for both Nouveau
and hmm-tests though so I doubt they will cause problems.
This patch (of 8):
When the CPU tries to access a device private page the migrate_to_ram()
callback associated with the pgmap for the page is called. However no
reference is taken on the faulting page. Therefore a concurrent migration
of the device private page can free the page and possibly the underlying
pgmap. This results in a race which can crash the kernel due to the
migrate_to_ram() function pointer becoming invalid. It also means drivers
can't reliably read the zone_device_data field because the page may have
been freed with memunmap_pages().
Close the race by getting a reference on the page while holding the ptl to
ensure it has not been freed. Unfortunately the elevated reference count
will cause the migration required to handle the fault to fail. To avoid
this failure pass the faulting page into the migrate_vma functions so that
if an elevated reference count is found it can be checked to see if it's
expected or not.
[mpe@ellerman.id.au: fix build]
Link: https://lkml.kernel.org/r/87fsgbf3gh.fsf@mpe.ellerman.id.au
Link: https://lkml.kernel.org/r/cover.60659b549d8509ddecafad4f498ee7f03bb23c69.1664366292.git-series.apopple@nvidia.com
Link: https://lkml.kernel.org/r/d3e813178a59e565e8d78d9b9a4e2562f6494f90.1664366292.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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FIELD_GET() must only be used with a mask that is a compile-time
constant. Mark the functions as __always_inline to avoid the problem.
Fixes: 21b688dabecb6a ("net: phy: micrel: Cable Diag feature for lan8814 phy")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Divya Koppera <Divya.Koppera@microchip.com>
Link: https://lore.kernel.org/r/20221011095437.12580-1-Divya.Koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().
Based on my test with allyesconfig, this reduces the .o size from:
text data bss dec hex filename
12843 4804 64 17711 452f drivers/rtc/rtc-ti-k3.o
down to:
12523 4804 64 17391 43ef drivers/rtc/rtc-ti-k3.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/601288834ab71c0fddde7eedd8cdb8001254ed7e.1661329498.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().
As a side effect, some error messages are not logged anymore, so also use
dev_err_probe() instead of dev_err() in case of error.
At least the error code will be logged (and -EPROBE_DEFER will be filtered)
Based on my test with allyesconfig, this reduces the .o size from:
text data bss dec hex filename
9025 2488 128 11641 2d79 drivers/rtc/rtc-jz4740.o
down to:
8267 2080 128 10475 28eb drivers/rtc/rtc-jz4740.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/af10570000d7e103d70bbea590ce8df4f8902b67.1661330532.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
|
|
The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().
That said, mpfs_rtc_init_clk() is the same as devm_clk_get_enabled(), so
use this function directly instead.
This also fixes an (unlikely) unchecked devm_add_action_or_reset() error.
Based on my test with allyesconfig, this reduces the .o size from:
text data bss dec hex filename
5330 2208 0 7538 1d72 drivers/rtc/rtc-mpfs.o
down to:
5074 2208 0 7282 1c72 drivers/rtc/rtc-mpfs.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/e55c959f2821a2c367a4c5de529a638b1cc6b8cd.1661329086.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The function name is missing the letter 'd' in the comment block.
Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20221003153711.271630-1-colin.i.king@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The regmap abstraction allows us to avoid the private i2c transfer
helpers, and also offers some nice utility functions such as the
regmap_update_bits family.
While at it, simplify the code even more by not keeping track of
->write_enabled: rtc_set_time is not a hot path, so one extra i2c read
doesn't hurt (regmap_update_bits elides the write when the bits are
already as desired).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-9-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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There's nothing in the data sheet that says writing to one of the time
keeping registers is necessary to start the RTC. It does so at the
stop condition of the i2c transfer setting the WRTC bit:
Upon initialization or power-up, the WRTC must be set to "1" to
enable the RTC. Upon the completion of a valid write (STOP), the RTC
starts counting.
Moreover, even if such a write to one of the timekeeping registers was
necessary, that's exactly what we do anyway just below when we
actually write the given struct rtc_time to the device.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-8-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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As another preparation for removing direct references to the
i2c_client in the helper functions, stash a pointer to the private
data via dev_set_drvdata() instead of i2c_set_clientdata().
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-7-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Simplify the code and make the output format consistent with other RTC
drivers by standardizing on using the %ptR printf extension.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-6-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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These instances of '&client->dev' might as well be spelled 'dev', since
'client' has been computed from 'dev' via 'client =
to_i2c_client(dev)'.
Later patches will get rid of that local variable 'client', so remove
these unnecessary references so those later patches become easier to
read.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-5-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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This dev_info() seems to be a debug leftover, and it would only get
printed once (or, once per battery change).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-4-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The isl12022 can (only) keep track of times in the range
2000-2099. The data sheet says
The calendar registers track date, month, year, and day of the week
and are accurate through 2099, with automatic leap year correction.
The lower bound of 2000 is obtained by simply observing that its YR
register only counts from 00 through 99.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-3-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The comments say that devm_rtc_device_register() is deprecated and
that one should instead use devm_rtc_allocate_device() and
[devm_]rtc_register_device. So do that.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-2-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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