Michael Straube [Sun, 17 Apr 2022 17:54:34 +0000 (19:54 +0200)]
staging: r8188eu: fix struct rt_firmware_hdr
The size of struct rt_firmware_hdr is 36 bytes.
$ pahole -C rt_firmware_hdr drivers/staging/r8188eu/r8188eu.o
struct rt_firmware_hdr {
__le16 Signature; /* 0 2 */
u8 Category; /* 2 1 */
u8 Function; /* 3 1 */
__le16 Version; /* 4 2 */
u8 Subversion; /* 6 1 */
/* XXX 1 byte hole, try to pack */
u16 Rsvd1; /* 8 2 */
u8 Month; /* 10 1 */
u8 Date; /* 11 1 */
u8 Hour; /* 12 1 */
u8 Minute; /* 13 1 */
__le16 RamCodeSize; /* 14 2 */
u8 Foundry; /* 16 1 */
u8 Rsvd2; /* 17 1 */
/* XXX 2 bytes hole, try to pack */
__le32 SvnIdx; /* 20 4 */
u32 Rsvd3; /* 24 4 */
u32 Rsvd4; /* 28 4 */
u32 Rsvd5; /* 32 4 */
/* size: 36, cachelines: 1, members: 17 */
/* sum members: 33, holes: 2, sum holes: 3 */
/* last cacheline: 36 bytes */
};
But the header in the firmware file is only 32 bytes long.
The hexdump of rtl8188eufw.bin shows that the field Rsvd1 should be u8
instead of __le16.
OFFSET rtl8188eufw.bin
-----------------------------------------------------------
0x00000000 E1 88 10 00 0B 00 01 00 01 21 11 27 30 36 00 00
0x00000010 2D 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00000000 E1 88 10 00 0B 00 01 00 01 21 11 27 30 36 00 00
^ ^ ^ ^ ^ ^
Subversion Rsvd1 Month Date Hour Minute
With the change of field Rsvd1 from __le16 to u8 the structure has the
correct size 32.
$ pahole -C rt_firmware_hdr drivers/staging/r8188eu/r8188eu.o
struct rt_firmware_hdr {
__le16 Signature; /* 0 2 */
u8 Category; /* 2 1 */
u8 Function; /* 3 1 */
__le16 Version; /* 4 2 */
u8 Subversion; /* 6 1 */
u8 Rsvd1; /* 7 1 */
u8 Month; /* 8 1 */
u8 Date; /* 9 1 */
u8 Hour; /* 10 1 */
u8 Minute; /* 11 1 */
__le16 RamCodeSize; /* 12 2 */
u8 Foundry; /* 14 1 */
u8 Rsvd2; /* 15 1 */
__le32 SvnIdx; /* 16 4 */
u32 Rsvd3; /* 20 4 */
u32 Rsvd4; /* 24 4 */
u32 Rsvd5; /* 28 4 */
/* size: 32, cachelines: 1, members: 17 */
/* last cacheline: 32 bytes */
The wrong size had no effect because the header size is hardcoded to
32 where it is used in the code and the fields after Subversion are
not used.
Fixes:
7884fc0a1473 ("staging: r8188eu: introduce new include dir for RTL8188eu driver")
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220417175441.13830-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adrien Thierry [Thu, 14 Apr 2022 18:16:22 +0000 (14:16 -0400)]
staging: bcm2835-audio: fix mutex definition without comment
Fix issue reported by checkpatch:
CHECK: struct mutex definition without comment
FILE: drivers/staging/vc04_services/bcm2835-audio/bcm2835.h:64:
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20220414181622.102049-6-athierry@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adrien Thierry [Thu, 14 Apr 2022 18:16:21 +0000 (14:16 -0400)]
staging: bcm2835-audio: fix mutex definition without comment
Fix issue reported by checkpatch:
CHECK: struct mutex definition without comment
FILE: drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c:14:
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20220414181622.102049-5-athierry@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adrien Thierry [Thu, 14 Apr 2022 18:16:20 +0000 (14:16 -0400)]
staging: bcm2835-audio: fix unnecessary space after cast
Fix issue reported by checkpatch:
CHECK: No space is necessary after a cast
FILE: drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c:240:
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20220414181622.102049-4-athierry@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adrien Thierry [Thu, 14 Apr 2022 18:16:19 +0000 (14:16 -0400)]
staging: bcm2835-audio: fix line ending with '('
Fix issue reported by checkpatch:
CHECK: Lines should not end with a '('
FILE: drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c:85:
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20220414181622.102049-3-athierry@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adrien Thierry [Thu, 14 Apr 2022 18:16:18 +0000 (14:16 -0400)]
staging: bcm2835-audio: fully describe config symbol
Explain SND_BCM2835 config option in more detail to fix checkpatch
warning:
WARNING: please write a help paragraph that fully describes the config
symbol
FILE: drivers/staging/vc04_services/bcm2835-audio/Kconfig:2
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20220414181622.102049-2-athierry@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Colin Ian King [Thu, 14 Apr 2022 10:36:50 +0000 (11:36 +0100)]
staging: rtl8192u: make read-only array EWC11NHTCap static const
Don't populate the read-only array EWC11NHTCap on the stack but instead
make it static const. Also makes the object code a little smaller.
Remove comment.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220414103650.297396-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Aliya Rahmani [Wed, 13 Apr 2022 20:46:49 +0000 (02:16 +0530)]
staging: ks7010: coding style fix: use tabs for indent
Added tabs for indent to fix the checkpatch error.
Signed-off-by: Aliya Rahmani <aliyarahmani786@gmail.com>
Link: https://lore.kernel.org/r/20220413204648.60358-1-aliyarahmani786@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Aliya Rahmani [Wed, 13 Apr 2022 18:23:04 +0000 (23:53 +0530)]
staging: rtl8712: Remove unnecessary parentheses
Remove redundant parentheses reported by checkpatch.
Signed-off-by: Aliya Rahmani <aliyarahmani786@gmail.com>
Link: https://lore.kernel.org/r/20220413182303.34807-1-aliyarahmani786@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Aliya Rahmani [Wed, 13 Apr 2022 11:35:31 +0000 (17:05 +0530)]
staging: rtl8712: cmd: remove redundant space after cast
Remove the unnecessary space immediately after a cast. Identified by
checkpatch: CHECK: No space is necessary after a cast.
Signed-off-by: Aliya Rahmani <aliyarahmani786@gmail.com>
Link: https://lore.kernel.org/r/20220413113531.31224-1-aliyarahmani786@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 20:07:42 +0000 (22:07 +0200)]
staging: r8188eu: pkt_newalloc is not used
pkg_newalloc in struct recv_buf is not used. Remove it.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413200742.276806-5-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 20:07:41 +0000 (22:07 +0200)]
staging: r8188eu: use ieee80211 helpers in mgt_dispatcher
Use structs and functions from ieee80211.h in mgt_dispatcher to parse
the incoming frame.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413200742.276806-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 20:07:40 +0000 (22:07 +0200)]
staging: r8188eu: merge _mgt_dispatcher into mgt_dispatcher
All that the _mgt_dispatcher function does is to call a function from
a function pointer. It's not worth having a separate function for this.
Merge _mgt_dispatcher into mgt_dispatcher.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413200742.276806-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 20:07:39 +0000 (22:07 +0200)]
staging: r8188eu: use ieee80211 helper to read the qos tid
Replace the driver-specific GetPriority macro with ieee80211_get_tid,
which does exactly the same thing.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413200742.276806-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:54 +0000 (21:36 +0200)]
staging: r8188eu: remove unused timer functions
rtw_get_passing_time_ms and rtw_systime_to_ms are not used any more.
Remove them.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-9-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:53 +0000 (21:36 +0200)]
staging: r8188eu: remove the bInSuspend loop
Remove the loop in rtw_pwr_wakeup that waits while the system is
suspended.
pwrpriv->bInSuspend is set in rtw_suspend and cleared in rtw_resume. These
functions are the .suspend and .resume functions of the struct usb_driver
for r8188eu.
A usb_driver's suspend and resume functions are called when the entire
system goes into suspend or runtime suspend.
All of the code paths for rtw_pwr_wakeup start at ioctl handlers.
We can remove the loop that checks bInSuspend. It's not possible to call
an ioctl while the entire system is suspended.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-8-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:52 +0000 (21:36 +0200)]
staging: r8188eu: clean up the code to set ips_deny_time
Clean up the code in rtw_pwr_wakeup that sets pwrpriv->ips_deny_time.
Make ips_deny_time an unsigned long, this type is used by the kernel
functions that process jiffies.
Remove the temporary variable ips_deffer_ms and use
RTW_PWR_STATE_CHK_INTERVAL directly.
There's no need to set ips_deny_time twice, it's sufficient to set it at
the end of rtw_pwr_wakeup.
Use time_before to check if ips_deny_time should be updated.
We can now remove rtw_ms_to_systime, this function is not used any more.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-7-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:51 +0000 (21:36 +0200)]
staging: r8188eu: use kernel functions for timeout handling
Use the kernel functions to set a timeout and to check if it's expired.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-6-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:50 +0000 (21:36 +0200)]
staging: r8188eu: summarize two if statements
Summarize two if statements in rtw_pwr_wakeup and place the constants
on the right side of the comparison.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-5-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:49 +0000 (21:36 +0200)]
staging: r8188eu: simplify the ps_processing check
It's sufficient to check pwrpriv->ps_processing as part of the while-loop.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:48 +0000 (21:36 +0200)]
staging: r8188eu: make return values consistent
rtw_pwr_wakeup should return _SUCCESS or _FAIL.
Replace false with _FAIL in one place and reformat the if-statement.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kaiser [Wed, 13 Apr 2022 19:36:47 +0000 (21:36 +0200)]
staging: r8188eu: simplify delay conditions in rtw_pwr_wakeup
Simplify the conditions for a loop in rtw_pwr_wakeup that waits while
the system is suspended.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Straube [Tue, 12 Apr 2022 18:57:54 +0000 (20:57 +0200)]
staging: r8188eu: clean up long lines in block_write()
Store the address and the data pointer for calls to rtw_writeN() and
rtw_write8() in local variables. This avoids long lines and improves
readability.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220412185754.8695-7-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Straube [Tue, 12 Apr 2022 18:57:53 +0000 (20:57 +0200)]
staging: r8188eu: remove unneeded initializations
The variables i and offset in block_write() are set in the code
before they are used. Remove the unneeded initializations.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220412185754.8695-6-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Straube [Tue, 12 Apr 2022 18:57:52 +0000 (20:57 +0200)]
staging: r8188eu: reduce variables in block_write()
For cleaner code and improved readability we can reduce the number
of local variables in block_write(). Use a single variable for block
size, number of blocks and remaining size.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220412185754.8695-5-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Straube [Tue, 12 Apr 2022 18:57:51 +0000 (20:57 +0200)]
staging: r8188eu: change void parameters to u8
The second parameter of write_fw(), page_write() and block_write()
is a void pointer, but we always pass an u8 pointer. We can convert
this parameter to an u8 pointer. The pointer is not changed in the
functions, so we can safely remove the local variable bufferPtr.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220412185754.8695-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Straube [Tue, 12 Apr 2022 18:57:50 +0000 (20:57 +0200)]
staging: r8188eu: rename parameter of block_write()
Rename the parameter buffSize of block_write() to avoid camel case.
buffSize -> size
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220412185754.8695-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Straube [Tue, 12 Apr 2022 18:57:49 +0000 (20:57 +0200)]
staging: r8188eu: correct macro spelling mistake
Correct a macro spelling mistake in rtw_fw.c.
MAX_REG_BOLCK_SIZE -> MAX_REG_BLOCK_SIZE
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220412185754.8695-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Duoming Zhou [Sat, 9 Apr 2022 07:21:35 +0000 (15:21 +0800)]
drivers: staging: rtl8192eu: Fix deadlock in rtw_joinbss_event_prehandle
There is a deadlock in rtw_joinbss_event_prehandle(), which is shown below:
(Thread 1) | (Thread 2)
| _set_timer()
rtw_joinbss_event_prehandle()| mod_timer()
spin_lock_bh() //(1) | (wait a time)
... | rtw_join_timeout_handler()
| _rtw_join_timeout_handler()
del_timer_sync() | spin_lock_bh() //(2)
(wait timer to stop) | ...
We hold pmlmepriv->lock in position (1) of thread 1 and
use del_timer_sync() to wait timer to stop, but timer handler
also need pmlmepriv->lock in position (2) of thread 2.
As a result, rtw_joinbss_event_prehandle() will block forever.
This patch extracts del_timer_sync() from the protection of
spin_lock_bh(), which could let timer handler to obtain
the needed lock. What`s more, we change spin_lock_bh() to
spin_lock_irq() in _rtw_join_timeout_handler() in order to
prevent deadlock.
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220409072135.74248-1-duoming@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Duoming Zhou [Sat, 9 Apr 2022 06:49:53 +0000 (14:49 +0800)]
drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()
There is a deadlock in rtw_joinbss_event_prehandle(), which is shown
below:
(Thread 1) | (Thread 2)
| _set_timer()
rtw_joinbss_event_prehandle()| mod_timer()
spin_lock_bh() //(1) | (wait a time)
... | _rtw_join_timeout_handler()
del_timer_sync() | spin_lock_bh() //(2)
(wait timer to stop) | ...
We hold pmlmepriv->lock in position (1) of thread 1 and
use del_timer_sync() to wait timer to stop, but timer handler
also need pmlmepriv->lock in position (2) of thread 2.
As a result, rtw_joinbss_event_prehandle() will block forever.
This patch extracts del_timer_sync() from the protection of
spin_lock_bh(), which could let timer handler to obtain
the needed lock. What`s more, we change spin_lock_bh() to
spin_lock_irq() in _rtw_join_timeout_handler() in order to
prevent deadlock.
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220409064953.67420-1-duoming@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Duoming Zhou [Sat, 9 Apr 2022 06:18:35 +0000 (14:18 +0800)]
drivers: staging: rtl8723bs: Fix deadlock in rtw_surveydone_event_callback()
There is a deadlock in rtw_surveydone_event_callback(),
which is shown below:
(Thread 1) | (Thread 2)
| _set_timer()
rtw_surveydone_event_callback()| mod_timer()
spin_lock_bh() //(1) | (wait a time)
... | rtw_scan_timeout_handler()
del_timer_sync() | spin_lock_bh() //(2)
(wait timer to stop) | ...
We hold pmlmepriv->lock in position (1) of thread 1 and use
del_timer_sync() to wait timer to stop, but timer handler
also need pmlmepriv->lock in position (2) of thread 2.
As a result, rtw_surveydone_event_callback() will block forever.
This patch extracts del_timer_sync() from the protection of
spin_lock_bh(), which could let timer handler to obtain
the needed lock. What`s more, we change spin_lock_bh() in
rtw_scan_timeout_handler() to spin_lock_irq(). Otherwise,
spin_lock_bh() will also cause deadlock() in timer handler.
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220409061836.60529-1-duoming@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mahak Gupta [Wed, 13 Apr 2022 05:45:17 +0000 (11:15 +0530)]
staging: r8188eu: add space around operators
Adhere to linux coding style.
Reported by checkpatch:
spaces preferred around that '{operator}'.
Signed-off-by: Mahak Gupta <mahak_g@cs.iitr.ac.in>
Link: https://lore.kernel.org/r/20220413054517.6343-1-mahak_g@cs.iitr.ac.in
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jaehee Park [Wed, 13 Apr 2022 04:38:52 +0000 (00:38 -0400)]
staging: greybus: remove empty callback function
Remove the optional remove callback for the soc_codec_dev_gbaudio
structure. The only place it is referenced is
snd_soc_component_remove() which is only called if the sound_component
pointer is non-null. The null function pointers here can be optionally
ommitted. When a sound component is registered this way, the remove
callback is optional. We can safely remove the whole gbcodec_remove
function, which used to be an empty function with a void return type.
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jaehee Park <jhpark1013@gmail.com>
Link: https://lore.kernel.org/r/12037ae2502ad7d0311bcdf2178c3d2156293236.1649824370.git.jhpark1013@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jaehee Park [Wed, 13 Apr 2022 04:38:51 +0000 (00:38 -0400)]
staging: greybus: correct typo in comment
Correct a spelling typo from 'Atleast' to 'At least' in comment.
Issue found by checkpatch.
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jaehee Park <jhpark1013@gmail.com>
Link: https://lore.kernel.org/r/2feb03de97ca4dbd27c22cf40f8e185f7dfaae29.1649824370.git.jhpark1013@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mahak Gupta [Wed, 13 Apr 2022 05:27:58 +0000 (10:57 +0530)]
staging: r8188eu: remove else after return and break statements
Else is not necessary after return and break statements, hence remove
it.
Reported by checkpatch:
WARNING: else is not generally useful after a break or return
Signed-off-by: Mahak Gupta <mahak_g@cs.iitr.ac.in>
Link: https://lore.kernel.org/r/20220413052759.4859-1-mahak_g@cs.iitr.ac.in
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adrien Thierry [Fri, 8 Apr 2022 15:03:58 +0000 (11:03 -0400)]
staging: bcm2835-audio: remove compat ALSA card
Remove compat ALSA card, which has overlapping functionality with the
two other cards described by the driver (HDMI and headphones)
This handles TODO item "Revisit multi-cards options and PCM route mixer
control".
Move the S/PDIF device that was part of the compat ALSA card to the HDMI
card.
Only enable headphones card by default, because HDMI breaks when using
both vc4 and bcm2835-audio with HDMI card enabled.
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20220408150359.26661-1-athierry@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Davidlohr Bueso [Mon, 11 Apr 2022 15:16:20 +0000 (08:16 -0700)]
staging/rtl8192e,ieee80211: replace ps tasklet with work
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.
rtllib_sta_ps() and ieee80211_sta_ps() will now run in process context
and have further concurrency (tasklets being serialized among themselves),
but this is done holding the ieee->lock, so it should be fine.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20220411151620.129178-7-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Davidlohr Bueso [Mon, 11 Apr 2022 15:16:19 +0000 (08:16 -0700)]
staging/rtl8712: remove event_tasklet
This is unused.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20220411151620.129178-6-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Davidlohr Bueso [Mon, 11 Apr 2022 15:16:18 +0000 (08:16 -0700)]
staging/ks7010: replace SME taslet with work
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 execution of the SME event will now occur in task context. There
are, however, changes in concurrency. Workqueues, unlike tasklets,
are not serialized among themselves and can run concurrently
updating sme_i.qhead. However, the current code is already exposed
in same ways, regardless of the deferral mechanism, in that
hostif_sme_enqueue() does unserialized enqueues updating sme_i.qtail.
Also get rid of the bogus (power save) tasklet enabling, as it
is never disabled to begin with.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20220411151620.129178-5-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Davidlohr Bueso [Mon, 11 Apr 2022 15:16:17 +0000 (08:16 -0700)]
staging/wlan-ng, prism2usb: replace completion_bh tasklet with work
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 completion_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/20220411151620.129178-4-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Davidlohr Bueso [Mon, 11 Apr 2022 15:16:16 +0000 (08:16 -0700)]
staging/wlan-ng, prism2usb: replace reaper_bh tasklet with work
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>
Davidlohr Bueso [Mon, 11 Apr 2022 15:16:15 +0000 (08:16 -0700)]
staging/most, dim2: convert dim2_tasklet to threaded irq
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>
Philipp Hortmann [Mon, 11 Apr 2022 20:49:54 +0000 (22:49 +0200)]
staging: vt6655: Remove macro PCAvDelayByIO
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>
Aliya Rahmani [Tue, 12 Apr 2022 07:14:57 +0000 (12:44 +0530)]
staging: rtl8712: efuse: code style - avoid macro argument precedence issues
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:11 +0000 (18:32 +0200)]
staging: r8188eu: improve timeout handling in efuse_read_phymap_from_txpktbuf
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:10 +0000 (18:32 +0200)]
staging: r8188eu: improve timeout handling in iol_execute
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:09 +0000 (18:32 +0200)]
staging: r8188eu: improve timeout handling in LPS_RF_ON_check
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:08 +0000 (18:32 +0200)]
staging: r8188eu: make LPS_RF_ON_check static
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:07 +0000 (18:32 +0200)]
staging: r8188eu: improve timeout handling in rtw_check_join_candidate
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:06 +0000 (18:32 +0200)]
staging: r8188eu: improve timeout handling in rtl8188e_firmware_download
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:05 +0000 (18:32 +0200)]
staging: r8188eu: summarize two if statements
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:04 +0000 (18:32 +0200)]
staging: r8188eu: remove unnecessary rtw_get_passing_time_ms call
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>
Martin Kaiser [Sat, 9 Apr 2022 16:32:03 +0000 (18:32 +0200)]
staging: r8188eu: no need for an else after return
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>
Uwe Kleine-König [Mon, 11 Apr 2022 11:30:10 +0000 (13:30 +0200)]
staging: greybus: pwm: Drop assignment to struct pwm_chip::base
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>
Michael Straube [Sat, 9 Apr 2022 12:06:27 +0000 (14:06 +0200)]
staging: r8188eu: remove HW_VAR_H2C_FW_PWRMODE
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>
Michael Straube [Sat, 9 Apr 2022 12:06:26 +0000 (14:06 +0200)]
staging: r8188eu: remove HW_VAR_FIFO_CLEARN_UP
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>
Michael Straube [Sat, 9 Apr 2022 12:06:25 +0000 (14:06 +0200)]
staging: r8188eu: remove HW_VAR_MLME_JOIN
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>
Michael Straube [Sat, 9 Apr 2022 12:06:24 +0000 (14:06 +0200)]
staging: r8188eu: remove HW_VAR_INITIAL_GAIN
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>
Michael Straube [Fri, 8 Apr 2022 16:38:25 +0000 (18:38 +0200)]
staging: r8188eu: convert else if to else in rtw_led.c
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>
Yihao Han [Fri, 8 Apr 2022 14:44:40 +0000 (07:44 -0700)]
staging: rtl8723bs: tidy up error handling
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>
Greg Kroah-Hartman [Mon, 11 Apr 2022 06:43:42 +0000 (08:43 +0200)]
Merge 5.18-rc2 into staging-next
We need the staging fix in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Mon, 11 Apr 2022 00:21:36 +0000 (14:21 -1000)]
Linux 5.18-rc2
Linus Torvalds [Sun, 10 Apr 2022 20:08:50 +0000 (10:08 -1000)]
Merge tag 'tty-5.18-rc2' of git://git./linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"This is a single serial driver fix for a build issue that showed up
due to changes that came in through the tty tree in 5.18-rc1 that were
missed previously. It resolves a build error with the mpc52xx_uart
driver.
It has been in linux-next this week with no reported problems"
* tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: mpc52xx_uart: make rx/tx hooks return unsigned, part II.
Linus Torvalds [Sun, 10 Apr 2022 20:04:30 +0000 (10:04 -1000)]
Merge tag 'staging-5.18-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fix from Greg KH:
"Here is a single staging driver fix for 5.18-rc2 that resolves an
endian issue for the r8188eu driver. It has been in linux-next all
this week with no reported problems"
* tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: r8188eu: Fix PPPoE tag insertion on little endian systems
Linus Torvalds [Sun, 10 Apr 2022 19:55:09 +0000 (09:55 -1000)]
Merge tag 'driver-core-5.18-rc2' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here are two small driver core changes for 5.18-rc2.
They are the final bits in the removal of the default_attrs field in
struct kobj_type. I had to wait until after 5.18-rc1 for all of the
changes to do this came in through different development trees, and
then one new user snuck in. So this series has two changes:
- removal of the default_attrs field in the powerpc/pseries/vas code.
The change has been acked by the PPC maintainers to come through
this tree
- removal of default_attrs from struct kobj_type now that all
in-kernel users are removed.
This cleans up the kobject code a little bit and removes some
duplicated functionality that confused people (now there is only
one way to do default groups)
Both of these have been in linux-next for all of this week with no
reported problems"
* tag 'driver-core-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kobject: kobj_type: remove default_attrs
powerpc/pseries/vas: use default_groups in kobj_type
Linus Torvalds [Sun, 10 Apr 2022 19:52:46 +0000 (09:52 -1000)]
Merge tag 'char-misc-5.18-rc2' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fix from Greg KH:
"A single driver fix. It resolves the build warning issue on 32bit
systems in the habannalabs driver that came in during the 5.18-rc1
merge cycle.
It has been in linux-next for all this week with no reported problems"
* tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
habanalabs: Fix test build failures
Linus Torvalds [Sun, 10 Apr 2022 17:36:18 +0000 (07:36 -1000)]
Merge tag 'powerpc-5.18-2' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix KVM "lost kick" race, where an attempt to pull a vcpu out of the
guest could be lost (or delayed until the next guest exit).
- Disable SCV (system call vectored) when PR KVM guests could be run.
- Fix KVM PR guests using SCV, by disallowing AIL != 0 for KVM PR
guests.
- Add a new KVM CAP to indicate if AIL == 3 is supported.
- Fix a regression when hotplugging a CPU to a memoryless/cpuless node.
- Make virt_addr_valid() stricter for 64-bit Book3E & 32-bit, which
fixes crashes seen due to hardened usercopy.
- Revert a change to max_mapnr which broke HIGHMEM.
Thanks to Christophe Leroy, Fabiano Rosas, Kefeng Wang, Nicholas Piggin,
and Srikar Dronamraju.
* tag 'powerpc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
Revert "powerpc: Set max_mapnr correctly"
powerpc: Fix virt_addr_valid() for 64-bit Book3E & 32-bit
KVM: PPC: Move kvmhv_on_pseries() into kvm_ppc.h
powerpc/numa: Handle partially initialized numa nodes
powerpc/64: Fix build failure with allyesconfig in book3s_64_entry.S
KVM: PPC: Use KVM_CAP_PPC_AIL_MODE_3
KVM: PPC: Book3S PR: Disallow AIL != 0
KVM: PPC: Book3S PR: Disable SCV when AIL could be disabled
KVM: PPC: Book3S HV P9: Fix "lost kick" race
Linus Torvalds [Sun, 10 Apr 2022 17:25:49 +0000 (07:25 -1000)]
Merge tag 'irq-urgent-2022-04-10' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of interrupt chip driver fixes:
- A fix for a long standing bug in the ARM GICv3 redistributor
polling which uses the wrong bit number to test.
- Prevent translation of bogus ACPI table entries which map device
interrupts into the IPI space on ARM GICs.
- Don't write into the pending register of ARM GICV4 before the scan
in hardware has completed.
- A set of build and correctness fixes for the Qualcomm MPM driver"
* tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic, gic-v3: Prevent GSI to SGI translations
irqchip/gic-v3: Fix GICR_CTLR.RWP polling
irqchip/gic-v4: Wait for GICR_VPENDBASER.Dirty to clear before descheduling
irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()
irq/qcom-mpm: Fix build error without MAILBOX
Linus Torvalds [Sun, 10 Apr 2022 17:12:27 +0000 (07:12 -1000)]
Merge tag 'x86_urgent_for_v5.18_rc2' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix the MSI message data struct definition
- Use local labels in the exception table macros to avoid symbol
conflicts with clang LTO builds
- A couple of fixes to objtool checking of the relatively newly added
SLS and IBT code
- Rename a local var in the WARN* macro machinery to prevent shadowing
* tag 'x86_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/msi: Fix msi message data shadow struct
x86/extable: Prefer local labels in .set directives
x86,bpf: Avoid IBT objtool warning
objtool: Fix SLS validation for kcov tail-call replacement
objtool: Fix IBT tail-call detection
x86/bug: Prevent shadowing in __WARN_FLAGS
x86/mm/tlb: Revert retpoline avoidance approach
Linus Torvalds [Sun, 10 Apr 2022 17:08:22 +0000 (07:08 -1000)]
Merge tag 'perf_urgent_for_v5.18_rc2' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- A couple of fixes to cgroup-related handling of perf events
- A couple of fixes to event encoding on Sapphire Rapids
- Pass event caps of inherited events so that perf doesn't fail wrongly
at fork()
- Add support for a new Raptor Lake CPU
* tag 'perf_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Always set cpuctx cgrp when enable cgroup event
perf/core: Fix perf_cgroup_switch()
perf/core: Use perf_cgroup_info->active to check if cgroup is active
perf/core: Don't pass task around when ctx sched in
perf/x86/intel: Update the FRONTEND MSR mask on Sapphire Rapids
perf/x86/intel: Don't extend the pseudo-encoding to GP counters
perf/core: Inherit event_caps
perf/x86/uncore: Add Raptor Lake uncore support
perf/x86/msr: Add Raptor Lake CPU support
perf/x86/cstate: Add Raptor Lake support
perf/x86: Add Intel Raptor Lake support
Linus Torvalds [Sun, 10 Apr 2022 16:56:46 +0000 (06:56 -1000)]
Merge tag 'locking_urgent_for_v5.18_rc2' of git://git./linux/kernel/git/tip/tip
Pull locking fixes from Borislav Petkov:
- Allow the compiler to optimize away unused percpu accesses and change
the local_lock_* macros back to inline functions
- A couple of fixes to static call insn patching
* tag 'locking_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "mm/page_alloc: mark pagesets as __maybe_unused"
Revert "locking/local_lock: Make the empty local_lock_*() function a macro."
x86/percpu: Remove volatile from arch_raw_cpu_ptr().
static_call: Remove __DEFINE_STATIC_CALL macro
static_call: Properly initialise DEFINE_STATIC_CALL_RET0()
static_call: Don't make __static_call_return0 static
x86,static_call: Fix __static_call_return0 for i386
Linus Torvalds [Sun, 10 Apr 2022 16:47:49 +0000 (06:47 -1000)]
Merge tag 'sched_urgent_for_v5.18_rc2' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Use the correct static key checking primitive on the IRQ exit path
- Two fixes for the new forceidle balancer
* tag 'sched_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Fix compile error in dynamic_irqentry_exit_cond_resched()
sched: Teach the forced-newidle balancer about CPU affinity limitation.
sched/core: Fix forceidle balancing
Linus Torvalds [Sun, 10 Apr 2022 04:45:10 +0000 (18:45 -1000)]
Merge tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git./linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix the clang command line option probing and remove some options to
filter out, fixing the build with the latest clang versions
- Fix 'perf bench' futex and epoll benchmarks to deal with machines
with more than 1K CPUs
- Fix 'perf test tsc' error message when not supported
- Remap perf ring buffer if there is no space for event, fixing perf
usage in 32-bit ChromeOS
- Drop objdump stderr to avoid getting stuck waiting for stdout output
in 'perf annotate'
- Fix up garbled output by now showing unwind error messages when
augmenting frame in best effort mode
- Fix perf's libperf_print callback, use the va_args eprintf() variant
- Sync vhost and arm64 cputype headers with the kernel sources
- Fix 'perf report --mem-mode' with ARM SPE
- Add missing external commands ('iiostat', etc) to 'perf --list-cmds'
* tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf annotate: Drop objdump stderr to avoid getting stuck waiting for stdout output
perf tools: Add external commands to list-cmds
perf docs: Add perf-iostat link to manpages
perf session: Remap buf if there is no space for event
perf bench: Fix epoll bench to correct usage of affinity for machines with #CPUs > 1K
perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K
perf tools: Fix perf's libperf_print callback
perf: arm-spe: Fix perf report --mem-mode
perf unwind: Don't show unwind error messages when augmenting frame pointer stack
tools headers arm64: Sync arm64's cputype.h with the kernel sources
perf test tsc: Fix error message when not supported
perf build: Don't use -ffat-lto-objects in the python feature test when building with clang-13
perf python: Fix probing for some clang command line options
tools build: Filter out options and warnings not supported by clang
tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
tools include UAPI: Sync linux/vhost.h with the kernel sources
Linus Torvalds [Sun, 10 Apr 2022 04:31:59 +0000 (18:31 -1000)]
Merge tag 'cxl+nvdimm-for-5.18-rc2' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull cxl and nvdimm fixes from Dan Williams:
- Fix a compile error in the nvdimm unit tests
- Fix a shadowed variable warning in the CXL PCI driver
* tag 'cxl+nvdimm-for-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
cxl/pci: Drop shadowed variable
tools/testing/nvdimm: Fix security_init() symbol collision
Linus Torvalds [Sun, 10 Apr 2022 04:17:43 +0000 (18:17 -1000)]
Merge tag 'gpio-fixes-for-v5.18-rc2' of git://git./linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
- fix a race condition with consumers accessing the fields of GPIO IRQ
chips before they're fully initialized
* tag 'gpio-fixes-for-v5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: Restrict usage of GPIO chip irq members before initialization
Thomas Gleixner [Sat, 9 Apr 2022 20:21:55 +0000 (22:21 +0200)]
Merge tag 'irqchip-fixes-5.18-1' of git://git./linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier:
- Fix GICv3 polling for RWP in redistributors
- Reject ACPI attempts to use SGIs on GIC/GICv3
- Fix unpredictible behaviour when making a VPE non-resident
with GICv4
- A couple of fixes for the newly merged qcom-mpm driver
Link: https://lore.kernel.org/lkml/20220409094229.267649-1-maz@kernel.org
Ian Rogers [Thu, 7 Apr 2022 23:04:59 +0000 (16:04 -0700)]
perf annotate: Drop objdump stderr to avoid getting stuck waiting for stdout output
If objdump writes to stderr it can block waiting for it to be read. As
perf doesn't read stderr then progress stops with perf waiting for
stdout output.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: Dave Marchevsky <davemarchevsky@fb.com>
Cc: Denis Nikitin <denik@chromium.org>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Lexi Shao <shaolexi@huawei.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: William Cohen <wcohen@redhat.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20220407230503.1265036-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Michael Petlan [Mon, 4 Apr 2022 22:15:41 +0000 (00:15 +0200)]
perf tools: Add external commands to list-cmds
The `perf --list-cmds` output prints only internal commands, although
there is no reason for that from users' perspective.
Adding the external commands to commands array with NULL function
pointer allows printing all perf commands while not changing the logic
of command handler selection.
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220404221541.30312-2-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Michael Petlan [Mon, 4 Apr 2022 22:15:40 +0000 (00:15 +0200)]
perf docs: Add perf-iostat link to manpages
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220404221541.30312-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Denis Nikitin [Wed, 30 Mar 2022 03:11:30 +0000 (20:11 -0700)]
perf session: Remap buf if there is no space for event
If a perf event doesn't fit into remaining buffer space return NULL to
remap buf and fetch the event again.
Keep the logic to error out on inadequate input from fuzzing.
This fixes perf failing on ChromeOS (with 32b userspace):
$ perf report -v -i perf.data
...
prefetch_event: head=0x1fffff8 event->header_size=0x30, mmap_size=0x2000000: fuzzed or compressed perf.data?
Error:
failed to process sample
Fixes:
57fc032ad643ffd0 ("perf session: Avoid infinite loop when seeing invalid header.size")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Denis Nikitin <denik@chromium.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220330031130.2152327-1-denik@chromium.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linus Torvalds [Sat, 9 Apr 2022 16:05:46 +0000 (06:05 -1000)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
- add support for new devices (ufs, mvsas)
- a major set of fixes in lpfc
- get rid of a driver specific ioctl in pcmraid
- a major rework of aha152x to get rid of the scsi_pointer.
- minor fixes and obvious changes including several spelling updates.
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (36 commits)
scsi: megaraid_sas: Target with invalid LUN ID is deleted during scan
scsi: ufs: ufshpb: Fix a NULL check on list iterator
scsi: sd: Clean up gendisk if device_add_disk() failed
scsi: message: fusion: Remove redundant variable dmp
scsi: mvsas: Add PCI ID of RocketRaid 2640
scsi: sd: sd_read_cpr() requires VPD pages
scsi: mpt3sas: Fail reset operation if config request timed out
scsi: sym53c500_cs: Stop using struct scsi_pointer
scsi: ufs: ufs-pci: Add support for Intel MTL
scsi: mpt3sas: Fix mpt3sas_check_same_4gb_region() kdoc comment
scsi: scsi_debug: Fix sdebug_blk_mq_poll() in_use_bm bitmap use
scsi: bnx2i: Fix spelling mistake "mis-match" -> "mismatch"
scsi: bnx2fc: Fix spelling mistake "mis-match" -> "mismatch"
scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()
scsi: aic7xxx: Use standard PCI subsystem, subdevice defines
scsi: ufs: qcom: Drop custom Android boot parameters
scsi: core: sysfs: Remove comments that conflict with the actual logic
scsi: hisi_sas: Remove stray fallthrough annotation
scsi: virtio-scsi: Eliminate anonymous module_init & module_exit
scsi: isci: Fix spelling mistake "doesnt" -> "doesn't"
...
Athira Rajeev [Wed, 6 Apr 2022 17:51:11 +0000 (23:21 +0530)]
perf bench: Fix epoll bench to correct usage of affinity for machines with #CPUs > 1K
The 'perf bench epoll' testcase fails on systems with more than 1K CPUs.
Testcase: perf bench epoll all
Result snippet:
<<>>
Run summary [PID 106497]: 1399 threads monitoring on 64 file-descriptors for 8 secs.
perf: pthread_create: No such file or directory
<<>>
In epoll benchmarks (ctl, wait) pthread_create is invoked in do_threads
from respective bench_epoll_* function. Though the logs shows direct
failure from pthread_create, the actual failure is from
"sched_setaffinity" returning EINVAL (invalid argument).
This happens because the default mask size in glibc is 1024. To overcome
this 1024 CPUs mask size limitation of cpu_set_t, change the mask size
using the CPU_*_S macros.
Patch addresses this by fixing all the epoll benchmarks to use CPU_ALLOC
to allocate cpumask, CPU_ALLOC_SIZE for size, and CPU_SET_S to set the
mask.
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220406175113.87881-3-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Athira Rajeev [Wed, 6 Apr 2022 17:51:10 +0000 (23:21 +0530)]
perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K
The 'perf bench futex' testcase fails on systems with more than 1K CPUs.
Testcase: perf bench futex all
Failure snippet:
<<>>Running futex/hash benchmark...
perf: pthread_create: No such file or directory
<<>>
All the futex benchmarks (ie hash, lock-api, requeue, wake,
wake-parallel), pthread_create is invoked in respective bench_futex_*
function. Though the logs shows direct failure from pthread_create,
strace logs showed that actual failure is from "sched_setaffinity"
returning EINVAL (invalid argument).
This happens because the default mask size in glibc is 1024. To overcome
this 1024 CPUs mask size limitation of cpu_set_t, change the mask size
using the CPU_*_S macros.
Patch addresses this by fixing all the futex benchmarks to use CPU_ALLOC
to allocate cpumask, CPU_ALLOC_SIZE for size, and CPU_SET_S to set the
mask.
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220406175113.87881-2-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Fri, 8 Apr 2022 13:26:25 +0000 (16:26 +0300)]
perf tools: Fix perf's libperf_print callback
eprintf() does not expect va_list as the type of the 4th parameter.
Use veprintf() because it does.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes:
428dab813a56ce94 ("libperf: Merge libperf_set_print() into libperf_init()")
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220408132625.2451452-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Fri, 8 Apr 2022 14:40:56 +0000 (15:40 +0100)]
perf: arm-spe: Fix perf report --mem-mode
Since commit
bb30acae4c4dacfa ("perf report: Bail out --mem-mode if mem
info is not available") "perf mem report" and "perf report --mem-mode"
don't allow opening the file unless one of the events has
PERF_SAMPLE_DATA_SRC set.
SPE doesn't have this set even though synthetic memory data is generated
after it is decoded. Fix this issue by setting DATA_SRC on SPE events.
This has no effect on the data collected because the SPE driver doesn't
do anything with that flag and doesn't generate samples.
Fixes:
bb30acae4c4dacfa ("perf report: Bail out --mem-mode if mem info is not available")
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220408144056.1955535-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Wed, 6 Apr 2022 14:56:51 +0000 (15:56 +0100)]
perf unwind: Don't show unwind error messages when augmenting frame pointer stack
Commit Fixes:
b9f6fbb3b2c29736 ("perf arm64: Inject missing frames when
using 'perf record --call-graph=fp'") intended to add a 'best effort'
DWARF unwind that improved the frame pointer stack in most scenarios.
It's expected that the unwind will fail sometimes, but this shouldn't be
reported as an error. It only works when the return address can be
determined from the contents of the link register alone.
Fix the error shown when the unwinder requires extra registers by adding
a new flag that suppresses error messages. This flag is not set in the
normal --call-graph=dwarf unwind mode so that behavior is not changed.
Fixes:
b9f6fbb3b2c29736 ("perf arm64: Inject missing frames when using 'perf record --call-graph=fp'")
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220406145651.1392529-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Sat, 9 Apr 2022 14:48:15 +0000 (11:48 -0300)]
tools headers arm64: Sync arm64's cputype.h with the kernel sources
To get the changes in:
83bea32ac7ed37bb ("arm64: Add part number for Arm Cortex-A78AE")
That addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/arm64/include/asm/cputype.h' differs from latest version at 'arch/arm64/include/asm/cputype.h'
diff -u tools/arch/arm64/include/asm/cputype.h arch/arm64/include/asm/cputype.h
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Chanho Park <chanho61.park@samsung.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Will Deacon <will@kernel.org>
Link: http://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Chengdong Li [Fri, 8 Apr 2022 08:47:48 +0000 (16:47 +0800)]
perf test tsc: Fix error message when not supported
By default `perf test tsc` does not return the error message when the
child process detected kernel does not support it. Instead, the child
process prints an error message to stderr, unfortunately stderr is
redirected to /dev/null when verbose <= 0.
This patch does:
- return TEST_SKIP to the parent process instead of TEST_OK when
perf_read_tsc_conversion() is not supported.
- Add a new subtest of testing if TSC is supported on current
architecture by moving exist code to a separate function.
It avoids two places in test__perf_time_to_tsc() that return
TEST_SKIP by doing this.
- Extend the test suite definition to contain above two subtests.
Current test_suite and test_case structs do not support printing skip
reason when the number of subtest less than 1. To print skip reason, it
is necessary to extend current test suite definition.
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chengdong Li <chengdongli@tencent.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: likexu@tencent.com
Link: https://lore.kernel.org/r/20220408084748.43707-1-chengdongli@tencent.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Thu, 7 Apr 2022 14:04:20 +0000 (11:04 -0300)]
perf build: Don't use -ffat-lto-objects in the python feature test when building with clang-13
Using -ffat-lto-objects in the python feature test when building with
clang-13 results in:
clang-13: error: optimization flag '-ffat-lto-objects' is not supported [-Werror,-Wignored-optimization-argument]
error: command '/usr/sbin/clang' failed with exit code 1
cp: cannot stat '/tmp/build/perf/python_ext_build/lib/perf*.so': No such file or directory
make[2]: *** [Makefile.perf:639: /tmp/build/perf/python/perf.so] Error 1
Noticed when building on a docker.io/library/archlinux:base container.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Fri, 8 Apr 2022 13:08:07 +0000 (10:08 -0300)]
perf python: Fix probing for some clang command line options
The clang compiler complains about some options even without a source
file being available, while others require one, so use the simple
tools/build/feature/test-hello.c file.
Then check for the "is not supported" string in its output, in addition
to the "unknown argument" already being looked for.
This was noticed when building with clang-13 where -ffat-lto-objects
isn't supported and since we were looking just for "unknown argument"
and not providing a source code to clang, was mistakenly assumed as
being available and not being filtered to set of command line options
provided to clang, leading to a build failure.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Link: http://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 5 Apr 2022 13:33:21 +0000 (10:33 -0300)]
tools build: Filter out options and warnings not supported by clang
These make the feature check fail when using clang, so remove them just
like is done in tools/perf/Makefile.config to build perf itself.
Adding -Wno-compound-token-split-by-macro to tools/perf/Makefile.config
when building with clang is also necessary to avoid these warnings
turned into errors (-Werror):
CC /tmp/build/perf/util/scripting-engines/trace-event-perl.o
In file included from util/scripting-engines/trace-event-perl.c:35:
In file included from /usr/lib64/perl5/CORE/perl.h:4085:
In file included from /usr/lib64/perl5/CORE/hv.h:659:
In file included from /usr/lib64/perl5/CORE/hv_func.h:34:
In file included from /usr/lib64/perl5/CORE/sbox32_hash.h:4:
/usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: error: '(' and '{' tokens introducing statement expression appear in different macro expansion contexts [-Werror,-Wcompound-token-split-by-macro]
ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/lib64/perl5/CORE/zaphod32_hash.h:80:38: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
#define ZAPHOD32_SCRAMBLE32(v,prime) STMT_START { \
^~~~~~~~~~
/usr/lib64/perl5/CORE/perl.h:737:29: note: expanded from macro 'STMT_START'
# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
^
/usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: note: '{' token is here
ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/lib64/perl5/CORE/zaphod32_hash.h:80:49: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
#define ZAPHOD32_SCRAMBLE32(v,prime) STMT_START { \
^
/usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: error: '}' and ')' tokens terminating statement expression appear in different macro expansion contexts [-Werror,-Wcompound-token-split-by-macro]
ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/lib64/perl5/CORE/zaphod32_hash.h:87:41: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
v ^= (v>>23); \
^
/usr/lib64/perl5/CORE/zaphod32_hash.h:150:5: note: ')' token is here
ZAPHOD32_SCRAMBLE32(state[0],0x9fade23b);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/lib64/perl5/CORE/zaphod32_hash.h:88:3: note: expanded from macro 'ZAPHOD32_SCRAMBLE32'
} STMT_END
^~~~~~~~
/usr/lib64/perl5/CORE/perl.h:738:21: note: expanded from macro 'STMT_END'
# define STMT_END )
^
Please refer to the discussion on the Link: tag below, where Nathan
clarifies the situation:
<quote>
acme> And then get to the problems at the end of this message, which seem
acme> similar to the problem described here:
acme>
acme> From Nathan Chancellor <>
acme> Subject [PATCH] mwifiex: Remove unnecessary braces from HostCmd_SET_SEQ_NO_BSS_INFO
acme>
acme> https://lkml.org/lkml/2020/9/1/135
acme>
acme> So perhaps in this case its better to disable that
acme> -Werror,-Wcompound-token-split-by-macro when building with clang?
Yes, I think that is probably the best solution. As far as I can tell,
at least in this file and context, the warning appears harmless, as the
"create a GNU C statement expression from two different macros" is very
much intentional, based on the presence of PERL_USE_GCC_BRACE_GROUPS.
The warning is fixed in upstream Perl by just avoiding creating GNU C
statement expressions using STMT_START and STMT_END:
https://github.com/Perl/perl5/issues/18780
https://github.com/Perl/perl5/pull/18984
If I am reading the source code correctly, an alternative to disabling
the warning would be specifying -DPERL_GCC_BRACE_GROUPS_FORBIDDEN but it
seems like that might end up impacting more than just this site,
according to the issue discussion above.
</quote>
Based-on-a-patch-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # Debian/Selfmade LLVM-14 (x86-64)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: http://lore.kernel.org/lkml/YkxWcYzph5pC1EK8@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Mon, 4 Apr 2022 20:28:48 +0000 (17:28 -0300)]
tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
Just like its done for ldopts and for both in tools/perf/Makefile.config.
Using `` to initialize PERL_EMBED_CCOPTS somehow precludes using:
$(filter-out SOMETHING_TO_FILTER,$(PERL_EMBED_CCOPTS))
And we need to do it to allow for building with versions of clang where
some gcc options selected by distros are not available.
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # Debian/Selfmade LLVM-14 (x86-64)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Keeping <john@metanate.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: http://lore.kernel.org/lkml/YktYX2OnLtyobRYD@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Tue, 14 Apr 2020 12:12:55 +0000 (09:12 -0300)]
tools include UAPI: Sync linux/vhost.h with the kernel sources
To get the changes in:
b04d910af330b55e ("vdpa: support exposing the count of vqs to userspace")
a61280ddddaa45f9 ("vdpa: support exposing the config size to userspace")
Silencing this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
$ diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h
--- tools/include/uapi/linux/vhost.h 2021-07-15 16:17:01.
840818309 -0300
+++ include/uapi/linux/vhost.h 2022-04-02 18:55:05.
702522387 -0300
@@ -150,4 +150,11 @@
/* Get the valid iova range */
#define VHOST_VDPA_GET_IOVA_RANGE _IOR(VHOST_VIRTIO, 0x78, \
struct vhost_vdpa_iova_range)
+
+/* Get the config size */
+#define VHOST_VDPA_GET_CONFIG_SIZE _IOR(VHOST_VIRTIO, 0x79, __u32)
+
+/* Get the count of all virtqueues */
+#define VHOST_VDPA_GET_VQS_COUNT _IOR(VHOST_VIRTIO, 0x80, __u32)
+
#endif
$ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before
$ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h
$ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after
$ diff -u before after
--- before 2022-04-04 14:52:25.
036375145 -0300
+++ after 2022-04-04 14:52:31.
906549976 -0300
@@ -38,4 +38,6 @@
[0x73] = "VDPA_GET_CONFIG",
[0x76] = "VDPA_GET_VRING_NUM",
[0x78] = "VDPA_GET_IOVA_RANGE",
+ [0x79] = "VDPA_GET_CONFIG_SIZE",
+ [0x80] = "VDPA_GET_VQS_COUNT",
};
$
Cc: Longpeng <longpeng2@huawei.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/lkml/YksxoFcOARk%2Fldev@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linus Torvalds [Sat, 9 Apr 2022 04:58:03 +0000 (18:58 -1000)]
Merge tag 'block-5.18-2022-04-08' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Nothing major in here, just a few small fixes:
- Small series of neglected drbd patches (Christoph, Lv, Xiaomeng)
- Remove dead variable in cdrom (Enze)"
* tag 'block-5.18-2022-04-08' of git://git.kernel.dk/linux-block:
drbd: set QUEUE_FLAG_STABLE_WRITES
drbd: fix an invalid memory access caused by incorrect use of list iterator
drbd: Fix five use after free bugs in get_initial_state
cdrom: remove unused variable
Linus Torvalds [Sat, 9 Apr 2022 04:50:14 +0000 (18:50 -1000)]
Merge tag 'io_uring-5.18-2022-04-08' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A bit bigger than usual post merge window, largely due to a revert and
a fix of at what point files are assigned for requests.
The latter fixing a linked request use case where a dependent link can
rely on what file is assigned consistently.
Summary:
- 32-bit compat fix for IORING_REGISTER_IOWQ_AFF (Eugene)
- File assignment fixes (me)
- Revert of the NAPI poll addition from this merge window. The author
isn't available right now to engage on this, so let's revert it and
we can retry for the 5.19 release (me, Jakub)
- Fix a timeout removal race (me)
- File update and SCM fixes (Pavel)"
* tag 'io_uring-5.18-2022-04-08' of git://git.kernel.dk/linux-block:
io_uring: fix race between timeout flush and removal
io_uring: use nospec annotation for more indexes
io_uring: zero tag on rsrc removal
io_uring: don't touch scm_fp_list after queueing skb
io_uring: nospec index for tags on files update
io_uring: implement compat handling for IORING_REGISTER_IOWQ_AFF
Revert "io_uring: Add support for napi_busy_poll"
io_uring: drop the old style inflight file tracking
io_uring: defer file assignment
io_uring: propagate issue_flags state down to file assignment
io_uring: move read/write file prep state into actual opcode handler
io_uring: defer splice/tee file validity check until command issue
io_uring: don't check req->file in io_fsync_prep()
Linus Torvalds [Sat, 9 Apr 2022 04:29:02 +0000 (18:29 -1000)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Several bug fixes for old bugs:
- Welcome Leon as co-maintainer for RDMA so we are back to having two
people
- Some corner cases are fixed in mlx5's MR code
- Long standing CM bug where a DREQ at the wrong time can result in a
long timeout
- Missing locking and refcounting in hf1"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/hfi1: Fix use-after-free bug for mm struct
IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition
IB/cm: Cancel mad on the DREQ event when the state is MRA_REP_RCVD
RDMA/mlx5: Add a missing update of cache->last_add
RDMA/mlx5: Don't remove cache MRs when a delay is needed
MAINTAINERS: Update qib and hfi1 related drivers
MAINTAINERS: Add Leon Romanovsky to RDMA maintainers
Linus Torvalds [Sat, 9 Apr 2022 04:23:02 +0000 (18:23 -1000)]
Merge tag 'acpi-5.18-rc2' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These revert a problematic commit from the 5.17 development cycle and
finalize the elimination of acpi_bus_get_device() that mostly took
place during the recent merge window.
Specifics:
- Revert an ACPI processor driver change related to cache
invalidation in acpi_idle_play_dead() that clearly was a mistake
and introduced user-visible regressions (Akihiko Odaki).
- Replace the last instance of acpi_bus_get_device() added during the
recent merge window and drop the function to prevent more users of
it from being added (Rafael Wysocki)"
* tag 'acpi-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: bus: Eliminate acpi_bus_get_device()
Revert "ACPI: processor: idle: Only flush cache on entering C3"
Linus Torvalds [Sat, 9 Apr 2022 01:06:11 +0000 (15:06 -1000)]
Merge tag 'linux-kselftest-kunit-fixes-5.18-rc2' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull KUnit fix from Shuah Khan:
"A single documentation fix to incorrect and outdated usage
information"
* tag 'linux-kselftest-kunit-fixes-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
Documentation: kunit: fix path to .kunitconfig in start.rst
Linus Torvalds [Sat, 9 Apr 2022 00:48:35 +0000 (14:48 -1000)]
Merge tag 'linux-kselftest-fixes-5.18-rc2' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Build and run-times fixes to tests:
- header dependencies
- missing tear-downs to release allocated resources in assert paths
- missing error messages when build fails
- coccicheck and unused variable warnings"
* tag 'linux-kselftest-fixes-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/harness: Pass variant to teardown
selftests/harness: Run TEARDOWN for ASSERT failures
selftests: fix an unused variable warning in pidfd selftest
selftests: fix header dependency for pid_namespace selftests
selftests: x86: add 32bit build warnings for SUSE
selftests/proc: fix array_size.cocci warning
selftests/vDSO: fix array_size.cocci warning
Linus Torvalds [Sat, 9 Apr 2022 00:31:41 +0000 (14:31 -1000)]
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
"9 patches.
Subsystems affected by this patch series: mm (migration, highmem,
sparsemem, mremap, mempolicy, and memcg), lz4, mailmap, and
MAINTAINERS"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
MAINTAINERS: add Tom as clang reviewer
mm/list_lru.c: revert "mm/list_lru: optimize memcg_reparent_list_lru_node()"
mailmap: update Vasily Averin's email address
mm/mempolicy: fix mpol_new leak in shared_policy_replace
mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
mm/sparsemem: fix 'mem_section' will never be NULL gcc 12 warning
lz4: fix LZ4_decompress_safe_partial read out of bound
highmem: fix checks in __kmap_local_sched_{in,out}
mm: migrate: use thp_order instead of HPAGE_PMD_ORDER for new page allocation.