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Tasklets have long been deprecated as being too heavy on the system
by running in irq context - and this is not a performance critical
path. If a higher priority process wants to run, it must wait for
the tasklet to finish before doing so.
The reaper_bh tasklet will now run in process context and have further
concurrency (tasklets being serialized among themselves), but this
is done holding the ctlxq.lock, so it should be fine.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20220411151620.129178-3-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Tasklets have long been deprecated as being too heavy on the system
by running in irq context - and this is not a performance critical
path. If a higher priority process wants to run, it must wait for
the tasklet to finish before doing so. A more suitable equivalent
is to converted to threaded irq instead and service channels in
regular task context.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20220411151620.129178-2-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using pm_runtime_resume_and_get is more appropriate
for simplifing code
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408081205.2494512-1-chi.minghao@zte.com.cn
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Make workaround work for other 8821CE devices with different PCI ID
Signed-off-by: Jimmy Hon <honyuenkwun@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407075123.420696-3-honyuenkwun@gmail.com
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New device ID 0xb821 found on TP-Link T2E
Tested it with c821 driver. 2.4GHz and 5GHz works.
PCI id:
05:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b821
Subsystem: Realtek Semiconductor Co., Ltd. Device b821
Signed-off-by: Jimmy Hon <honyuenkwun@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407075123.420696-2-honyuenkwun@gmail.com
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RSSI value per frame is reported to mac80211 but not maintained in
our own statistics, add it back to help us debug.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407095858.46807-7-pkshih@realtek.com
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Calling calibration to yield expected PHY performance. We do this in STA
mode, so do this in AP mode as well.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407095858.46807-6-pkshih@realtek.com
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Without this setting, hardware would not report to driver even if
management frames are transmitted successfully. So we fix it.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407095858.46807-5-pkshih@realtek.com
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To support stations in power saving mode, AP should notify stations
that there are frames buffered at the AP via TIM during beacons.
Driver used to transmit identical beacons that were downloaded to
hardware during the initiation phase. This beacon will become
obsolete over time.
If the beacon does not contain sufficient information, station would
not be able to percept that there is data to receive. Hence it won't
wake up and start the PS-poll procedure, this could lead to timeout
and/or lost data segments. In order to resolve this issue, driver will
now download beacon to hardware whenever the content is updated.
Enable hardware to update dtim_count for more efficiency, this reduces
the overhead of downloading beacon at every beacon interval since most
of the time only the dtim_count needs to be updated.
Change queue mapping for broadcast/multicast frames to high queue, so
these frames can be prioritized and sent when dtim_count is zero.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407095858.46807-4-pkshih@realtek.com
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We should only fill in frequency reported by firmware during scan.
Add this so frames won't be dropped by mac80211 due to frequency
mismatch.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407095858.46807-3-pkshih@realtek.com
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Adding this allows us to get notification when bitrate configuration
of the station changes. Update according parameters to firmware so
the rate control algorithm can work properly.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220407095858.46807-2-pkshih@realtek.com
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Remove do-while(0) and CamelCase macro PCAvDelayByIO as
it is not accepted by checkpatch.pl
As the macro is just used once with a constant <= 50 the
functionality of the macro is implemented by using
udelay() directly.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/e8267e7566d389f318a72d911083e52b02e37210.1649706687.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes checkpatch warnings of precedence issues. Added parentheses
around macro arguments 'offset' and 'word_en'.
Signed-off-by: Aliya Rahmani <aliyarahmani786@gmail.com>
Link: https://lore.kernel.org/r/20220412071456.40980-1-aliyarahmani786@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the standard kernel functions to define and check the timeout in
efuse_read_phymap_from_txpktbuf.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-10-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the standard kernel functions to define and check the timeout in
iol_execute.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-9-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the standard kernel functions to define and check the timeout in
LPS_RF_ON_check.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-8-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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LPS_RF_ON_check is used only in rtw_pwrctrl.c. Make it a static function.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-7-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the standard kernel functions to define and check the timeout in
rtw_check_join_candidate.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-6-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the standard kernel functions to define and check the timeout in
rtl8188e_firmware_download.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-5-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Summarize the two if statements at the end of send_beacon.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the rtw_get_passing_time_ms call in send_beacon.
Calling rtw_get_passing_time_ms makes no sense if we discard the result.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The else branch at the end of send_beacon is not necessary. We return in
the if branch.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since commit f9a8ee8c8bcd ("pwm: Always allocate PWM chip base ID
dynamically") the value held in base isn't used any more in the PWM
framework. All PMWs get assigned a dynamic ID, so the assignment is
redundant and can be dropped.
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220411113010.208500-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the HW_VAR_H2C_FW_PWRMODE case from SetHwReg8188EU() and move
its functionality to a new function in rtw_pwrctrl.c. This is part of
the ongoing effort to get rid of the unwanted hal layer.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220409120627.10633-5-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the HW_VAR_FIFO_CLEARN_UP case from SetHwReg8188EU() and move
its functionality to a new static function in os_intfs.c. This is part
of the ongoing effort to get rid of the unwanted hal layer.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220409120627.10633-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the HW_VAR_MLME_JOIN case from SetHwReg8188EU() and move its
functionality to a new static function in rtw_mlme_ext.c. This is part
of the ongoing effort to get rid of the unwanted hal layer.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220409120627.10633-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the HW_VAR_INITIAL_GAIN case from SetHwReg8188EU() and move its
functionality to a new static function in rtw_mlme_ext.c. This is part
of the ongoing effort to get rid of the unwanted hal layer.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220409120627.10633-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The else if in this block is redundant, it can be a simple else.
if (x) {
...
} else if (!x) {
...
}
Convert two such else if statements to simple else in rw_led.c.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220408163825.29069-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The check for if rtw_skb_alloc() fails is done twice and is written
in a confusing way. Move the "if (!recvbuf->pskb)" right after
the allocation. The "if (recvbuf->pskb)" check can now be deleted
and the code pulled in one tab.
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Link: https://lore.kernel.org/r/20220408144442.17611-1-hanyihao@vivo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Leon Romanovsky says:
====================
Mellanox shared branch that includes:
* Removal of FPGA TLS code https://lore.kernel.org/all/cover.1649073691.git.leonro@nvidia.com
Mellanox INNOVA TLS cards are EOL in May, 2018 [1]. As such, the code
is unmaintained, untested and not in-use by any upstream/distro oriented
customers. In order to reduce code complexity, drop the kernel code,
clean build config options and delete useless kTLS vs. TLS separation.
[1] https://network.nvidia.com/related-docs/eol/LCR-000286.pdf
* Removal of FPGA IPsec code https://lore.kernel.org/all/cover.1649232994.git.leonro@nvidia.com
Together with FPGA TLS, the IPsec went to EOL state in the November of
2019 [1]. Exactly like FPGA TLS, no active customers exist for this
upstream code and all the complexity around that area can be deleted.
[2] https://network.nvidia.com/related-docs/eol/LCR-000535.pdf
* Fix to undefined behavior from Borislav https://lore.kernel.org/all/20220405151517.29753-11-bp@alien8.de
====================
* 'mlx5-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
net/mlx5: Remove not-implemented IPsec capabilities
net/mlx5: Remove ipsec_ops function table
net/mlx5: Reduce kconfig complexity while building crypto support
net/mlx5: Move IPsec file to relevant directory
net/mlx5: Remove not-needed IPsec config
net/mlx5: Align flow steering allocation namespace to common style
net/mlx5: Unify device IPsec capabilities check
net/mlx5: Remove useless IPsec device checks
net/mlx5: Remove ipsec vs. ipsec offload file separation
RDMA/core: Delete IPsec flow action logic from the core
RDMA/mlx5: Drop crypto flow steering API
RDMA/mlx5: Delete never supported IPsec flow action
net/mlx5: Remove FPGA ipsec specific statistics
net/mlx5: Remove XFRM no_trailer flag
net/mlx5: Remove not-used IDA field from IPsec struct
net/mlx5: Delete metadata handling logic
net/mlx5_fpga: Drop INNOVA IPsec support
IB/mlx5: Fix undefined behavior due to shift overflowing the constant
net/mlx5: Cleanup kTLS function names and their exposure
net/mlx5: Remove tls vs. ktls separation as it is the same
net/mlx5: Remove indirection in TLS build
net/mlx5: Reliably return TLS device capabilities
net/mlx5_fpga: Drop INNOVA TLS support
Link: https://lore.kernel.org/r/20220409055303.1223644-1-leon@kernel.org
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
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Change the struct and the uses to const to reduce data.
$ size drivers/net/wireless/realtek/rtw89/ser.o* (x86-64 defconfig w/ rtw89)
text data bss dec hex filename
3741 8 0 3749 ea5 drivers/net/wireless/realtek/rtw89/ser.o.new
3437 312 0 3749 ea5 drivers/net/wireless/realtek/rtw89/ser.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/2fd88e6119f62b968477ef9781abb1832d399fd6.camel@perches.com
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Initialize registers to default values, such as PTA and GNT pin, and set
pin MUX according to number of antenna on hardware module.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-10-pkshih@realtek.com
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Separated DIG RX gain, IGI configurations from not supportted HW using
"support_igi" capability flag.
Signed-off-by: Johnson Lin <johnson.lin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-9-pkshih@realtek.com
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Disable watchdog timer to prevent it timeout suddenly.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-8-pkshih@realtek.com
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BA CAM is used to react receiving AMPDU packets, so reset them to be
expected initial state.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-7-pkshih@realtek.com
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The bit B_AX_SS_NONEMPTY_SS2FINFO_EN should be clear, because we configure
C-MAC as hardware TX/RX mode.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-6-pkshih@realtek.com
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Turn on ERR IMR, and then firmware can capture interrupts reflecting
errors to recover hardware states.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-5-pkshih@realtek.com
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Similarly, create functions to set specific C-MAC masks for firmware
recovery.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-4-pkshih@realtek.com
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These interrupts are used by firmware to recover hardware. Create
functions to set specific D-MAC masks to replace plain register settings.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-3-pkshih@realtek.com
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add `break` to fix warning of unannotated fall-through between switch
labels.
Fixes: 14f9f4790048 ("rtw89: ser: control hci interrupts on/off by state")
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-2-pkshih@realtek.com
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The print function dev_err() is redundant because
platform_get_irq_byname() already prints an error.
Eliminate the follow coccicheck warning:
./drivers/net/wireless/ath/ath9k/ahb.c:103:2-9: line 103 is redundant
because platform_get_irq() already prints an error
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220408000113.129906-2-yang.lee@linux.alibaba.com
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Eliminate the follow smatch warning:
drivers/net/wireless/ath/wcn36xx/smd.c:3151
wcn36xx_smd_gtk_offload_get_info_rsp() warn: inconsistent indenting
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220408000113.129906-1-yang.lee@linux.alibaba.com
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There is a spelling mistake in an ath11k_warn message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220407102820.613881-1-colin.i.king@gmail.com
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Stop reading (and copying) from ieee80211_tx_rate to ath_tx_info.rates
after list end tag (count == 0, idx < 0), prevents copying of garbage
to card registers.
Note: no need to write to the remaining ath_tx_info.rates entries
as the complete ath_tx_info struct is already initialized to zero from
both call sites.
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220402153014.31332-1-ps.report@gmx.net
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The internal recvmsg() functions have two parameters 'flags' and 'noblock'
that were merged inside skb_recv_datagram(). As a follow up patch to commit
f4b41f062c42 ("net: remove noblock parameter from skb_recv_datagram()")
this patch removes the separate 'noblock' parameter for recvmsg().
Analogue to the referenced patch for skb_recv_datagram() the 'flags' and
'noblock' parameters are unnecessarily split up with e.g.
err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT,
flags & ~MSG_DONTWAIT, &addr_len);
or in
err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udp_recvmsg,
sk, msg, size, flags & MSG_DONTWAIT,
flags & ~MSG_DONTWAIT, &addr_len);
instead of simply using only flags all the time and check for MSG_DONTWAIT
where needed (to preserve for the formerly separated no(n)block condition).
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/r/20220411124955.154876-1-socketcan@hartkopp.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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If we hit the sync case, like when skipping clearing for kernel internal
objects, or when falling back to cpu clearing, like in i915, we end up
trying to add a NULL fence, but with some recent changes in this area
this now just results in NULL deref in dma_resv_add_fence:
<1>[ 5.466383] BUG: kernel NULL pointer dereference, address: 0000000000000008
<1>[ 5.466384] #PF: supervisor read access in kernel mode
<1>[ 5.466385] #PF: error_code(0x0000) - not-present page
<6>[ 5.466386] PGD 0 P4D 0
<4>[ 5.466387] Oops: 0000 [#1] PREEMPT SMP NOPTI
<4>[ 5.466389] CPU: 5 PID: 267 Comm: modprobe Not tainted 5.18.0-rc2-CI-CI_DRM_11481+ #1
<4>[ 5.466391] RIP: 0010:dma_resv_add_fence+0x63/0x260
<4>[ 5.466395] Code: 38 85 c0 0f 84 df 01 00 00 0f 88 e8 01 00 00 83 c0 01 0f 88 df 01 00 00 8b 05 35 89 10 01 49 8d 5e 68 85 c0 0f 85 45 01 00 00 <48> 8b 45 08 48 3d c0 a5 0a 82 0f 84 5c 01 00 00 48 3d 60 a5 0a 82
<4>[ 5.466396] RSP: 0018:ffffc90000e974f8 EFLAGS: 00010202
<4>[ 5.466397] RAX: 0000000000000001 RBX: ffff888123e88b28 RCX: 00000000ffffffff
<4>[ 5.466398] RDX: 0000000000000001 RSI: ffffffff822e4f50 RDI: ffffffff8233f087
<4>[ 5.466399] RBP: 0000000000000000 R08: ffff8881313dbc80 R09: 0000000000000001
<4>[ 5.466399] R10: 0000000000000001 R11: 00000000da354294 R12: 0000000000000000
<4>[ 5.466400] R13: ffff88810927dc58 R14: ffff888123e88ac0 R15: ffff88810a88d600
<4>[ 5.466401] FS: 00007f5fa1193540(0000) GS:ffff88845d880000(0000) knlGS:0000000000000000
<4>[ 5.466402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 5.466402] CR2: 0000000000000008 CR3: 0000000106dd6003 CR4: 00000000003706e0
<4>[ 5.466403] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>[ 5.466404] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
<4>[ 5.466404] Call Trace:
<4>[ 5.466405] <TASK>
<4>[ 5.466406] ttm_bo_move_accel_cleanup+0x62/0x270 [ttm]
<4>[ 5.466411] ? i915_rsgt_from_buddy_resource+0x185/0x1e0 [i915]
<4>[ 5.466529] i915_ttm_move+0xfd/0x430 [i915]
<4>[ 5.466833] ? dma_resv_reserve_fences+0x4e/0x320
<4>[ 5.466836] ? ttm_bo_add_move_fence.constprop.20+0xf7/0x140 [ttm]
<4>[ 5.466841] ttm_bo_handle_move_mem+0xa1/0x140 [ttm]
<4>[ 5.466845] ttm_bo_validate+0xee/0x160 [ttm]
<4>[ 5.466849] __i915_ttm_get_pages+0x4f/0x210 [i915]
<4>[ 5.466976] i915_ttm_get_pages+0xad/0x140 [i915]
<4>[ 5.467094] ____i915_gem_object_get_pages+0x32/0xf0 [i915]
<4>[ 5.467210] __i915_gem_object_get_pages+0x89/0xa0 [i915]
<4>[ 5.467323] i915_vma_get_pages+0x114/0x1d0 [i915]
<4>[ 5.467446] i915_vma_pin_ww+0xd3/0xa90 [i915]
<4>[ 5.467570] i915_vma_pin.constprop.10+0x119/0x1b0 [i915]
<4>[ 5.467700] ? __mutex_unlock_slowpath+0x3e/0x2b0
<4>[ 5.467704] intel_alloc_initial_plane_obj.isra.6+0x1a9/0x390 [i915]
<4>[ 5.467833] intel_crtc_initial_plane_config+0x83/0x340 [i915]
In the ttm_bo_move_sync_cleanup() case it seems we only really care
about calling ttm_bo_wait_free_node(), so let's instead just call that
directly.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Nirmoy Das <nirmoy.das@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220411085603.58156-1-matthew.auld@intel.com
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On some arch (ie aarch64 iMX8MM) unaligned PCIe accesses are
not allowed and lead to a kernel Oops.
[ 1911.668835] Unable to handle kernel paging request at virtual address ffff80001bc00a8c
[ 1911.668841] Mem abort info:
[ 1911.668844] ESR = 0x96000061
[ 1911.668847] EC = 0x25: DABT (current EL), IL = 32 bits
[ 1911.668850] SET = 0, FnV = 0
[ 1911.668852] EA = 0, S1PTW = 0
[ 1911.668853] Data abort info:
[ 1911.668855] ISV = 0, ISS = 0x00000061
[ 1911.668857] CM = 0, WnR = 1
[ 1911.668861] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000040ff4000
[ 1911.668864] [ffff80001bc00a8c] pgd=00000000bffff003, pud=00000000bfffe003, pmd=0068000018400705
[ 1911.668872] Internal error: Oops: 96000061 [#1] PREEMPT SMP
...
The llp register present in the channel group registers is not
aligned on 64bit.
Fix unaligned 64bit access using two 32bit accesses
Fixes: 04e0a39fc10f ("dmaengine: dw-edma: Add writeq() and readq() for 64 bits architectures")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20220225120252.309404-1-herve.codina@bootlin.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
We fix it:
1) Replacing it with pm_runtime_resume_and_get to keep usage counter
balanced.
2) Add putting operation before returning error.
Fixes:9135408c3ace4 ("dmaengine: mediatek: Add MediaTek UART APDMA support")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20220319022142.142709-1-zhangqilong3@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add the following Telit FN980 composition:
0x1057: tty, adb, rmnet, tty, tty, tty, tty, tty
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/20220411135943.4067264-1-dnlplm@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In __imx_clk_gpr_scu(), if imx_scu_clk_is_valid(rsrc_id) fails, then
`clk_node` which is allocated by kzalloc() is not properly released,
which may lead to memory leak.
So this patch added kfree(clk_node) on the above error path before
return ERR_PTR(-EINVAL).
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/tencent_27FF59903EE6AB5C0D0E6D0A8E7059A59007@qq.com
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
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