Renaming interfaces using udevd depends on the interface being registered
before its netdev is registered. Otherwise, udevd reads an empty
phys_port_name value, resulting in the interface not being renamed.
Fix this by registering the interface before registering its netdev
by invoking am65_cpsw_nuss_register_devlink() before invoking
register_netdev() for the interface.
Move the function call to devlink_port_type_eth_set(), invoking it after
register_netdev() is invoked, to ensure that netlink notification for the
port state change is generated after the netdev is completely initialized.
Fixes: 58356eb31d ("net: ti: am65-cpsw-nuss: Add devlink support")
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://lore.kernel.org/r/20220706070208.12207-1-s-vadapalli@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There is a long-standing issue with the Synopsys DWC Ethernet driver
for Tegra194 where random system crashes have been observed [0]. The
problem occurs when the split header feature is enabled in the stmmac
driver. In the bad case, a larger than expected buffer length is
received and causes the calculation of the total buffer length to
overflow. This results in a very large buffer length that causes the
kernel to crash. Why this larger buffer length is received is not clear,
however, the feedback from the NVIDIA design team is that the split
header feature is not supported for Tegra194. Therefore, disable split
header support for Tegra194 to prevent these random crashes from
occurring.
[0] https://lore.kernel.org/linux-tegra/b0b17697-f23e-8fa5-3757-604a86f3a095@nvidia.com/
Fixes: 67afd6d1cf ("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20220706083913.13750-1-jonathanh@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- another bogus identifier quirk (Keith Busch)
- use struct group in the tracer to avoid a gcc warning (Keith Busch)
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Merge tag 'nvme-5.19-2022-07-07' of git://git.infradead.org/nvme into block-5.19
Pull NVMe fixes from Christoph:
"nvme fixes for Linux 5.19
- another bogus identifier quirk (Keith Busch)
- use struct group in the tracer to avoid a gcc warning (Keith Busch)"
* tag 'nvme-5.19-2022-07-07' of git://git.infradead.org/nvme:
nvme: use struct group for generic command dwords
nvme-pci: phison e16 has bogus namespace ids
32 bit sqe->cmd_op is an union with 64 bit values. It's always a good
idea to do padding explicitly. Also zero check it in prep, so it can be
used in the future if needed without compatibility concerns.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e6b95a05e970af79000435166185e85b196b2ba2.1657202417.git.asml.silence@gmail.com
[axboe: turn bitwise OR into logical variant]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This patch ensures that the clock notifier is unregistered
when driver probe is returning error.
Fixes: df8eb5691c ("i2c: Add driver for Cadence I2C controller")
Signed-off-by: Satish Nagireddy <satish.nagireddy@getcruise.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
In newer version of the SBC specs, we have a NDOB bit that indicates there
is no data buffer that gets written out. If this bit is set using commands
like "sg_write_same --ndob" we will crash in target_core_iblock/file's
execute_write_same handlers when we go to access the se_cmd->t_data_sg
because its NULL.
This patch adds a check for the NDOB bit in the common WRITE SAME code
because we don't support it. And, it adds a check for zero SG elements in
each handler in case the initiator tries to send a normal WRITE SAME with
no data buffer.
Link: https://lore.kernel.org/r/20220628022325.14627-2-michael.christie@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Detailed description for this pull request:
1. Fix NULL pointer error on exynos-bus.c
- Fix exynos-bus NULL pointer dereference by correctly using the local
generated freq_table to output the debug values instead of using the
profile freq_table that is not used in the driver.
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Merge tag 'devfreq-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull a devfreq fix for 5.19-rc6 from Chanwoo Choi:
"- Fix exynos-bus NULL pointer dereference by correctly using the local
generated freq_table to output the debug values instead of using the
profile freq_table that is not used in the driver."
* tag 'devfreq-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
PM / devfreq: exynos-bus: Fix NULL pointer dereference
Fix exynos-bus NULL pointer dereference by correctly using the local
generated freq_table to output the debug values instead of using the
profile freq_table that is not used in the driver.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: b5d281f6c1 ("PM / devfreq: Rework freq_table to be local to devfreq struct")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Kajetan Puchalski reports crash on ARM, with backtrace of:
__nf_ct_delete_from_lists
nf_ct_delete
early_drop
__nf_conntrack_alloc
Unlike atomic_inc_not_zero, refcount_inc_not_zero is not a full barrier.
conntrack uses SLAB_TYPESAFE_BY_RCU, i.e. it is possible that a 'newly'
allocated object is still in use on another CPU:
CPU1 CPU2
encounter 'ct' during hlist walk
delete_from_lists
refcount drops to 0
kmem_cache_free(ct);
__nf_conntrack_alloc() // returns same object
refcount_inc_not_zero(ct); /* might fail */
/* If set, ct is public/in the hash table */
test_bit(IPS_CONFIRMED_BIT, &ct->status);
In case CPU1 already set refcount back to 1, refcount_inc_not_zero()
will succeed.
The expected possibilities for a CPU that obtained the object 'ct'
(but no reference so far) are:
1. refcount_inc_not_zero() fails. CPU2 ignores the object and moves to
the next entry in the list. This happens for objects that are about
to be free'd, that have been free'd, or that have been reallocated
by __nf_conntrack_alloc(), but where the refcount has not been
increased back to 1 yet.
2. refcount_inc_not_zero() succeeds. CPU2 checks the CONFIRMED bit
in ct->status. If set, the object is public/in the table.
If not, the object must be skipped; CPU2 calls nf_ct_put() to
un-do the refcount increment and moves to the next object.
Parallel deletion from the hlists is prevented by a
'test_and_set_bit(IPS_DYING_BIT, &ct->status);' check, i.e. only one
cpu will do the unlink, the other one will only drop its reference count.
Because refcount_inc_not_zero is not a full barrier, CPU2 may try to
delete an object that is not on any list:
1. refcount_inc_not_zero() successful (refcount inited to 1 on other CPU)
2. CONFIRMED test also successful (load was reordered or zeroing
of ct->status not yet visible)
3. delete_from_lists unlinks entry not on the hlist, because
IPS_DYING_BIT is 0 (already cleared).
2) is already wrong: CPU2 will handle a partially initited object
that is supposed to be private to CPU1.
Add needed barriers when refcount_inc_not_zero() is successful.
It also inserts a smp_wmb() before the refcount is set to 1 during
allocation.
Because other CPU might still see the object, refcount_set(1)
"resurrects" it, so we need to make sure that other CPUs will also observe
the right content. In particular, the CONFIRMED bit test must only pass
once the object is fully initialised and either in the hash or about to be
inserted (with locks held to delay possible unlink from early_drop or
gc worker).
I did not change flow_offload_alloc(), as far as I can see it should call
refcount_inc(), not refcount_inc_not_zero(): the ct object is attached to
the skb so its refcount should be >= 1 in all cases.
v2: prefer smp_acquire__after_ctrl_dep to smp_rmb (Will Deacon).
v3: keep smp_acquire__after_ctrl_dep close to refcount_inc_not_zero call
add comment in nf_conntrack_netlink, no control dependency there
due to locks.
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/all/Yr7WTfd6AVTQkLjI@e126311.manchester.arm.com/
Reported-by: Kajetan Puchalski <kajetan.puchalski@arm.com>
Diagnosed-by: Will Deacon <will@kernel.org>
Fixes: 7197743776 ("netfilter: conntrack: convert to refcount_t api")
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Will Deacon <will@kernel.org>
The status list isn't rendered as list, but rather as normal paragraph,
because there is missing blank line between "Status:" line and the list.
Fix the issue by adding the blank line separator.
Fixes: 48debafe4f ("dm: add writecache target")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
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Merge tag 'loongarch-fixes-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"A fix for tinyconfig build error, a fix for section mismatch warning,
and two cleanups of obsolete code"
* tag 'loongarch-fixes-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: Fix section mismatch warning
LoongArch: Fix build errors for tinyconfig
LoongArch: Remove obsolete mentions of vcsr
LoongArch: Drop these obsolete selects in Kconfig
- Tag Intel pin control as supported in MAINTAINERS
- Fix a NULL pointer exception in the Aspeed driver
- Correct some NAND functions in the Sunxi A83T driver
- Use the right offset for some Sunxi pins
- Fix a zero base offset in the Freescale (NXP) i.MX93
- Fix the IRQ support in the STM32 driver
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Merge tag 'pinctrl-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Tag Intel pin control as supported in MAINTAINERS
- Fix a NULL pointer exception in the Aspeed driver
- Correct some NAND functions in the Sunxi A83T driver
- Use the right offset for some Sunxi pins
- Fix a zero base offset in the Freescale (NXP) i.MX93
- Fix the IRQ support in the STM32 driver
* tag 'pinctrl-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: stm32: fix optional IRQ support to gpios
pinctrl: imx: Add the zero base flag for imx93
pinctrl: sunxi: sunxi_pconf_set: use correct offset
pinctrl: sunxi: a83t: Fix NAND function name for some pins
pinctrl: aspeed: Fix potential NULL dereference in aspeed_pinmux_set_mux()
MAINTAINERS: Update Intel pin control to Supported
These are indeed "should not happen" situations, but it turns out recent
changes made the 'task_is_stopped_or_trace()' case trigger (fix for that
exists, is pending more testing), and the BUG_ON() makes it
unnecessarily hard to actually debug for no good reason.
It's been that way for a long time, but let's make it clear: BUG_ON() is
not good for debugging, and should never be used in situations where you
could just say "this shouldn't happen, but we can continue".
Use WARN_ON_ONCE() instead to make sure it gets logged, and then just
continue running. Instead of making the system basically unusuable
because you crashed the machine while potentially holding some very core
locks (eg this function is commonly called while holding 'tasklist_lock'
for writing).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit a4866aa812 ("mm: Tighten x86 /dev/mem with zeroing reads") adds a
comment to the function devmem_is_allowed() referring to a non-existing
config STRICT_IOMEM, whereas the comment very likely intended to refer to
the config STRICT_DEVMEM, as the commit adds some behavior for the config
STRICT_DEVMEM.
Most of the initial analysis was actually done by Dave Hansen in the
email thread below (see Link).
Refer to the intended and existing config STRICT_DEVMEM.
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/f9074e8d-9314-9d7d-7bf5-5b5538c8be8d@intel.com/
Link: https://lkml.kernel.org/r/20220707115442.21107-1-lukas.bulwahn@gmail.com
The struct nhlt_format's fmt_config is a flexible array, it must not be
used as normal array.
When moving to the next nhlt_fmt_cfg we need to take into account the data
behind the ->config.caps (indicated by ->config.size).
The logic of the code also changed: it is no longer saves the _last_
fmt_cfg for all found rates.
Fixes: bc2bd45b1f ("ASoC: Intel: Skylake: Parse nhlt and register clock device")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220630065638.11183-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The present flag is only set once when one rate has been found to be saved.
This will effectively going to ignore any rate discovered at later time and
based on the code, this is not the intention.
Fixes: bc2bd45b1f ("ASoC: Intel: Skylake: Parse nhlt and register clock device")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220630065638.11183-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The patch fixes the wrong state of JD1 and JD2 while the bst1 or bst2 is
power on in the HDA JD using.
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Reported-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20220705101134.16792-1-oder_chiou@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Starting from ADL platform we have four HDMI PCM devices which exceeds
the size of sof_hdmi array. Since each sof_hdmi_pcm structure
represents one HDMI PCM device, we remove the sof_hdmi array and add a
new member hdmi_jack to the sof_hdmi_pcm structure to fix the
out-of-bounds problem.
Signed-off-by: Brent Lu <brent.lu@intel.com>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220701141517.264070-1-brent.lu@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
q6apm_get_audioreach_graph() allocates a memory chunk for graph->graph
with audioreach_alloc_graph_pkt(). When idr_alloc() fails, graph->graph
is not released, which will lead to a memory leak.
We can release the graph->graph with kfree() when idr_alloc() fails to
fix the memory leak.
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220629182520.2164409-1-niejianglei2021@163.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The register default is 0x28 per the datasheet, and the amp gain field
is supposed to be shifted left by one. With the wrong default, the ALSA
controls lie about the power-up state. With the wrong shift, we get only
half the gain we expect.
Signed-off-by: Hector Martin <marcan@marcan.st>
Fixes: 827ed8a0fa ("ASoC: tas2764: Add the driver for the TAS2764")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220630075135.2221-4-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
DVC value 0xc8 is -100dB and 0xc9 is mute; this needs to map to
-100.5dB as far as the dB scale is concerned. Fix that and enable
the mute flag, so alsamixer correctly shows the control as
<0 dB .. -100 dB, mute>.
Signed-off-by: Hector Martin <marcan@marcan.st>
Fixes: 827ed8a0fa ("ASoC: tas2764: Add the driver for the TAS2764")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220630075135.2221-3-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix setting of FSYNC polarity in case of LEFT_J and DSP_A/B formats.
Do NOT set the SCFG field as was previously done, because that is not
correct and is also in conflict with the "ASI1 Source" control which
sets the same SCFG field!
Also add support for explicit polarity inversion.
Fixes: 827ed8a0fa ("ASoC: tas2764: Add the driver for the TAS2764")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220630075135.2221-2-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Make sure there is at least 1 ms delay from reset to first command as
is specified in the datasheet. This is a fix similar to commit
307f314520 ("ASoC: tas2770: Insert post reset delay").
Fixes: 827ed8a0fa ("ASoC: tas2764: Add the driver for the TAS2764")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220630075135.2221-1-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
For the existing msm8916 bindings the minimum reg/reg-names is 1 not 2.
Similarly the minimum interrupt/interrupt-names is 1 not 2.
Fixes: f3fc4fbfa2 ("ASoC: dt-bindings: Add SC7280 lpass cpu bindings")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220629114012.3282945-1-bryan.odonoghue@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Make sure all AC97 interface lines are spelled in capitals,
to avoid confusing readers about where the 5th line is.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220628165840.152235-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently the function arizona_aif_cfg_changed uses the TX_BCLK_RATE,
however this register is not used on wm8998. This was not noticed as
previously snd_soc_component_read did not print an error message.
However, now the log gets filled with error messages, further more the
test for if the LRCLK changed will return spurious results.
Update the code to use the RX_BCLK_RATE register, the LRCLK parameters
are written to both registers and the RX_BCLK_RATE register is used
across all Arizona devices.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220628153409.3266932-4-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
cs47l92_put_demux returns the value of snd_soc_dapm_mux_update_power,
which returns a 1 if a path was found for the kcontrol. This is
obviously different to the expected return a 1 if the control
was updated value. This results in spurious notifications to
user-space. Update the handling to only return a 1 when the value is
changed.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220628153409.3266932-3-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
wm8998_inmux_put returns the value of snd_soc_dapm_mux_update_power,
which returns a 1 if a path was found for the kcontrol. This is
obviously different to the expected return a 1 if the control
was updated value. This results in spurious notifications to
user-space. Update the handling to only return a 1 when the value is
changed.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220628153409.3266932-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The output compensation controls always returns zero regardless of if
the control value was updated. This results in missing notifications
to user-space of the control change. Update the handling to return 1
when the value is changed.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220628153409.3266932-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently slim_tx_mixer_get reports all TX mixers as enabled when
at least one is, due to it reading the entire tx_port_value bitmask
without testing the specific bit corresponding to a TX port.
Furthermore, using the same bitmask for all capture DAIs makes
setting one mixer affect them all. To prevent this, and since
the SLIM TX muxes effectively only connect to one of the mixers
at a time, turn tx_port_value into an int array storing the DAI
index each of the ports is connected to.
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Link: https://lore.kernel.org/r/20220622061745.35399-1-y.oudjana@protonmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The tx_mask check doesn't reflect what the driver and the chip support.
The check currently checks for exactly two slots being enabled. The
tlv320adcx140 supports anything between one and eight channels, so relax
the check accordingly.
The tlv320adcx140 supports arbitrary tx_mask settings, but the driver
currently only supports adjacent slots beginning with the first slot,
so extend the check to check that the first slot is being used and that
there are no holes in the tx_mask.
Leave a comment to make it's the driver that limits the tx_mask
settings, not the chip itself.
While at it remove the set-but-unused struct adcx140p_priv::tdm_delay
field.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20220624105716.2579539-1-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
max98396_dai_set_fmt() modifes register 2041 and touches bits in the mask
0x3a. Make sure to use the right mask for that operation.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20220624104712.1934484-7-daniel@zonque.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert to managed versions of sysfs and clk allocation to simplify
unbinding and error handling in probe. Managed sysfs node
creation specifically addresses the following error seen the second time
probe is attempted after sdma_pcm_platform_register() previously requsted
probe deferral:
sysfs: cannot create duplicate filename '/devices/platform/68000000.ocp/49022000.mcbsp/max_tx_thres'
Signed-off-by: David Owens <dowens@precisionplanting.com>
Link: https://lore.kernel.org/r/20220620183744.3176557-1-dowens@precisionplanting.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The example in audio-graph-card2.c has multiple nodes with the same name
in it. Change the port numbers to get different names.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20220624092601.2445224-1-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Put the SGTL5000 in a silent/safe state on shutdown/remove, this is
required since the SGTL5000 produces a constant noise on its output
after it is configured and its clock is removed. Without this change
this is happening every time the module is unbound/removed or from
reboot till the clock is enabled again.
The issue was experienced on both a Toradex Colibri/Apalis iMX6, but can
be easily reproduced everywhere just playing something on the codec and
after that removing/unbinding the driver.
Fixes: 9b34e6cc3b ("ASoC: Add Freescale SGTL5000 codec support")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20220624101301.441314-1-francesco.dolcini@toradex.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When the ima-modsig is enabled, the rc passed to evm_verifyxattr() may be
negative, which may cause the integer overflow problem.
Fixes: 39b0709636 ("ima: Implement support for module-style appended signatures")
Signed-off-by: Huaxin Lu <luhuaxin1@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Resolves: ERROR: else should follow close brace '}'
Signed-off-by: JeongHyeon Lee <jhs2.lee@samsung.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Rename from "tgt" to "ti" so that all of dm-table.c code uses the same
naming for dm_target variables.
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
All callers of dm_table_get_target() are expected to do proper bounds
checking on the index they pass.
Move dm_table_get_target() to dm-core.h to make it extra clear that only
DM core code should be using it. Switch it to be inlined while at it.
Standardize all DM core callers to use the same for loop pattern and
make associated variables as local as possible. Rename some variables
(e.g. s/table/t/ and s/tgt/ti/) along the way.
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
More efficient and readable to just access table->num_targets directly.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Commit 61b6e2e532 ("dm: fix BLK_STS_DM_REQUEUE handling when dm_io
represents split bio") reverted DM core's bio splitting back to using
bio_split()+bio_chain() because it was found that otherwise DM's
BLK_STS_DM_REQUEUE would trigger a live-lock waiting for bio
completion that would never occur.
Restore using bio_trim()+bio_inc_remaining(), like was done in commit
7dd76d1fee ("dm: improve bio splitting and associated IO
accounting"), but this time with proper handling for the above
scenario that is covered in more detail in the commit header for
61b6e2e532.
Solve this issue by adding a two staged dm_io requeue mechanism that
uses the new dm_bio_rewind() via dm_io_rewind():
1) requeue the dm_io into the requeue_list added to struct
mapped_device, and schedule it via new added requeue work. This
workqueue just clones the dm_io->orig_bio (which DM saves and
ensures its end sector isn't modified). dm_io_rewind() uses the
sectors and sectors_offset members of the dm_io that are recorded
relative to the end of orig_bio: dm_bio_rewind()+bio_trim() are
then used to make that cloned bio reflect the subset of the
original bio that is represented by the dm_io that is being
requeued.
2) the 2nd stage requeue is same with original requeue, but
io->orig_bio points to new cloned bio (which matches the requeued
dm_io as described above).
This allows DM core to shift the need for bio cloning from bio-split
time (during IO submission) to the less likely BLK_STS_DM_REQUEUE
handling (after IO completes with that error).
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Commit 7759eb23fd ("block: remove bio_rewind_iter()") removed
a similar API for the following reasons:
```
It is pointed that bio_rewind_iter() is one very bad API[1]:
1) bio size may not be restored after rewinding
2) it causes some bogus change, such as 5151842b9d (block: reset
bi_iter.bi_done after splitting bio)
3) rewinding really makes things complicated wrt. bio splitting
4) unnecessary updating of .bi_done in fast path
[1] https://marc.info/?t=153549924200005&r=1&w=2
So this patch takes Kent's suggestion to restore one bio into its original
state via saving bio iterator(struct bvec_iter) in bio_integrity_prep(),
given now bio_rewind_iter() is only used by bio integrity code.
```
However, saving off a copy of the 32 bytes bio->bi_iter in case rewind
needed isn't efficient because it bloats per-bio-data for what is an
unlikely case. That suggestion also ignores the need to restore
crypto and integrity info.
Add dm_bio_rewind() API for a specific use-case that is much more narrow
than the previous more generic rewind code that was reverted:
1) most bios have a fixed end sector since bio split is done from front
of the bio, if driver just records how many sectors between current
bio's start sector and the original bio's end sector, the original
position can be restored. Keeping the original bio's end sector
fixed is a _hard_ requirement for this interface!
2) if a bio's end sector won't change (usually bio_trim() isn't
called, or in the case of DM it preserves original bio), user can
restore the original position by storing sector offset from the
current ->bi_iter.bi_sector to bio's end sector; together with
saving bio size, only 8 bytes is needed to restore to original
bio.
3) DM's requeue use case: when BLK_STS_DM_REQUEUE happens, DM core
needs to restore to an "original bio" which represents the current
dm_io to be requeued (which may be a subset of the original bio).
By storing the sector offset from the original bio's end sector and
dm_io's size, dm_bio_rewind() can restore such original bio. See
commit 7dd76d1fee ("dm: improve bio splitting and associated IO
accounting") for more details on how DM does this. Leveraging this,
allows DM core to shift the need for bio cloning from bio-split
time (during IO submission) to the less likely BLK_STS_DM_REQUEUE
handling (after IO completes with that error).
4) Unlike the original rewind API, dm_bio_rewind() doesn't add .bi_done
to bvec_iter and there is no effect on the fast path.
Implement dm_bio_rewind() by factoring out clear helpers that it calls:
dm_bio_integrity_rewind, dm_bio_crypt_rewind and dm_bio_rewind_iter.
DM is able to ensure that dm_bio_rewind() is used safely but, given
the constraint that the bio's end must never change, other
hypothetical future callers may not take the same care. So make
dm_bio_rewind() and all supporting code local to DM to avoid risk of
hypothetical abuse. A "dm_" prefix was added to all functions to avoid
any namespace collisions.
Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
The bananapi R64 (BPI-R64) experiences wrong WPS button signals.
In OpenWrt pushing the WPS button while powering on the device will set
it to recovery mode. Currently, this also happens without any user
interaction. In particular, the wrong signals appear while booting the
device or restarting it, e.g. after doing a system upgrade. If the
device is in recovery mode the user needs to manually power cycle or
restart it.
The official BPI-R64 sources set the WPS button to GPIO_ACTIVE_LOW in
the device tree. This setting seems to suppress the unwanted WPS button
press signals. So this commit changes the button from GPIO_ACTIVE_HIGH to
GPIO_ACTIVE_LOW.
The official BPI-R64 sources can be found on
https://github.com/BPI-SINOVOIP/BPI-R64-openwrt
Fixes: 0b6286dd96 ("arm64: dts: mt7622: add bananapi BPI-R64 board")
Suggested-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: Nick Hainke <vincent@systemli.org>
Link: https://lore.kernel.org/r/20220630111746.4098-1-vincent@systemli.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
