staging: r8188eu: remove unnecessary memset in r8188eu

psetauthparm and precvpriv->pallocated_recv_buf are allocated by kzalloc().
It is unnecessary to call memset again.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Link: https://lore.kernel.org/r/20220318092459.519225-1-wanjiabing@vivo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: greybus: introduce pwm_ops::apply

Introduce newer .apply function in pwm_ops to replace legacy operations
including enable, disable, config and set_polarity.

This guarantees atomic changes of the pwm controller configuration.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Song Chen <chensong_2000@189.cn>
Link: https://lore.kernel.org/r/1647597432-27586-1-git-send-email-chensong_2000@189.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rts5208: Resolve checkpatch.pl issues.

This patch removes unwanted use of dev_info for ftrace-like functionality
as suggested by checkpatch.pl.

Signed-off-by: Charlie Sands <sandsch@northvilleschools.net>
Link: https://lore.kernel.org/r/YjKimAdiRfRVfGl8@sckzor-linux.localdomain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: sm750fb: fix naming style

Fix CamelCase names defined in ddk750_dvi.c and ddk750_dvi.h, as
reported by checkpatch.pl. Remove name suffixes such as pfn_ and g_.

Signed-off-by: Nam Cao <cvn249@gmail.com>
Link: https://lore.kernel.org/r/20220316224940.70107-1-cvn249@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: fbtft: Consider type of init sequence values in fbtft_init_display()

In the fbtft_init_display() the init sequence is printed for
the debug purposes. Unfortunately the current code doesn't take
into account that values in the buffer are of the s16 type.

Consider that and replace the printing code with fbtft_par_dbg_hex()
call.

Fixes: b888897014a9 ("staging/fbtft: Remove all strcpy() uses")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220316165351.58107-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: fbtft: Constify buf parameter in fbtft_dbg_hex()

It's obvious that we don't and shouldn't modify buffer that
is about to be dumped. Constify parameter in fbtft_dbg_hex()
to make it clear.

Fixes: c296d5f9957c ("staging: fbtft: core support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220316165351.58107-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mmal-vchiq: clear redundant item named bulk_scratch

bulk_scratch is not used anywhere and the original allocation of it
does not have proper check.
Deleting it directly seems to be a good choice.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Link: https://lore.kernel.org/r/tencent_F721901366AB5C720E008AF7F02DA5D3FF07@qq.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

mips: dts: ralink: add MT7621 SoC

The MT7621 system-on-a-chip includes an 880 MHz MIPS1004Kc dual-core CPU,
a 5-port 10/100/1000 switch/PHY and one RGMII.

Add the devicetrees for GB-PC1 and GB-PC2 devices which use MT7621 SoC.

Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20220315160149.3617-1-arinc.unal@arinc9.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove some unused local ieee80211 macros

Remove some macros from wifi.h which are not used by this driver.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220315205041.2714168-6-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: make rtl8188e_process_phy_info static

rtl8188e_process_phy_info is used only in rtl8188e_rxdesc.c. Make the
function static and remove its prototype from rtl8188e_recv.h.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220315205041.2714168-5-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused function prototype

Remove the prototype for rtl8188eu_recv_hdl. This function does not exist
in the r8188eu driver.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220315205041.2714168-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove three unused receive defines

Remove three unused defines from rtl8188e_recv.h.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220315205041.2714168-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unnecessary initializations

Do not initialise bPacketMatchBSSID, bPacketToSelf and bPacketBeacon to
false at the start of update_recvframe_phyinfo_88e. All of them are set to
their actual values before they're used.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220315205041.2714168-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8192e: Fix spelling mistake "RESQUEST" -> "REQUEST"

There is a spelling mistake in a netdev_dbg message. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220315224037.2962063-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

MAINTAINERS: remove the obsolete file entry for staging in ANDROID DRIVERS

Commit 721412ed3d81 ("staging: remove ashmem") removes the last android
driver from staging, but misses to adjust MAINTAINERS.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.

Remove the obsolete file entry in ANDROID DRIVERS.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220316124802.372-1-lukas.bulwahn@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: proper error handling in rtw_init_drv_sw

The code inside rtw_init_drv_sw() calls various init functions to
populate the padapter structure and checks for their return values
respectively.
But if one of the functions in middle fails then it simply returns
_FAIL instead of proper logging and calling freeing counterparts
of previous init functions.
This leads to various memory leaks and can be found in
/sys/kernel/debug/kmemleak if kernel is compiled with DEBUG_KMEMLEAK=y.

Fix this and keep the success and error separate.

Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver")
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220309205047.45981-3-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: call _cancel_timer_ex from _rtw_free_recv_priv

The _rtw_init_recv_priv() initializes precvpriv->signal_stat_timer and
sets it's timeout interval to 1000 ms. But _rtw_free_recv_priv()
doesn't cancel the timer and we need to explicitly call
_cancel_timer_ex() after we call _rtw_free_recv_priv() to cancel the
timer.
Call _cancel_timer_ex() from inside _rtw_free_recv_priv() as every init
function needs a matching free function.

Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220309205047.45981-2-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6656: Removed unused variable vt3342_vnt_threshold

Missing part of staging: vt6656: Remove unused rf_type in baseband.c

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/6e1ef287e66039f9013435f8fa1266de7387df2e.1647284830.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6656: Removed unused variable bb_vga_0

Missing part of staging: vt6656: Remove unused rf_type in card.c

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/09f65cf4839b089ad38f28ff691d5146e6095e58.1647284830.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: remove ashmem

The mainline replacement for ashmem is memfd, so remove the legacy
code from drivers/staging/

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220315123457.2354812-1-hch@lst.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6656: Remove unused rf_type in card.c

Remove rf_type that supports 5GHz band.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/e768dbb116e79349aa083747729213d2d1ca7af9.1646935331.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6656: Remove unused rf_type in rf.c; unused variables

Remove rf_type that supports 5GHz band.

Follow up of previous patch. Remove unused tables.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/25e03c91ad7da064b69f3ac7eec265af70829aec.1646935331.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6656: Remove unused rf_type in rf.c; top level

Remove rf_type that supports 5GHz band.

To keep a better overview this is only the first part of the patch.
Compiler Warings about unused variables will be removed with the following
patch.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/e111923dffc4781cf9d4e7966c9f365beb93c5ee.1646935331.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6656: Remove unused rf_type in baseband.c

Remove rf_type that supports 5GHz band.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/77dcff8602084484532fcbd734aafd138087c5ee.1646935331.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6656: Remove unused rf_type in channel.c

Remove rf_type that supports 5GHz band.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/99af8605af8d348c6b60553c54149ad55da0e3b6.1646935331.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: Use min() instead of doing it manually

Fix following coccicheck warning:
drivers/staging/rtl8723bs/core/rtw_xmit.c:452:25-26: WARNING opportunity for min()

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Link: https://lore.kernel.org/r/1646983052-16390-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: Remove unused byRFType in card.c

Remove byRFType that support 5GHz band.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/5554b243ae285e3274d9968575aadd1a79806b01.1646512837.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: Remove unused byRFType in rf.c

Remove byRFType that support 5GHz band.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/640bdbc0ff135c6a63d6764fd81a8bb24d5053dd.1646512837.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: Remove unused byRFType in baseband.c

Remove byRFType that support 5GHz band.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/198341a249ea67acbf1be00b6465aa6a4eaef6e1.1646512837.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: Remove unused byRFType in channel.c

Remove byRFType that support 5GHz band.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/3724590188e72e8f531fe03c2821c5d3d08e2e29.1646512837.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: pi433: formatting improvement for multi-line bitwise statement

Move bitwise & operator to the end of previous line for better
readability

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>
Link: https://lore.kernel.org/r/YicRpmT2xMupVp4h@mail.google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: pi433: remove hardcoded mask value for easier readability

replace hardcoded value with the bitwise complement of the mask used to
extract value sent to rf69 chip.

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>
Link: https://lore.kernel.org/r/YicPRrH3HmpiTCxe@mail.google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove comments in update_recvframe_attrib_88e

Remove a couple of comments in update_recvframe_attrib_88e that provide no
useful information.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220305144117.1380534-6-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unnecessary casts

Remove unnecessary casts in update_recvframe_attrib_88e.

The final bitwise-and limits the results to u8 or u16, respectively.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220305144117.1380534-5-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: don't initialize drvinfo_sz to 0

In update_recvframe_attrib_88e, there's an initial memset which sets
all of pattrib to 0. There's no need to set pattrib->drvinfo_sz = 0
again later.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220305144117.1380534-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: summarize declaration and assignment

Summarize the declaration of pattrib and the assignment in the
following line.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220305144117.1380534-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove tmp variable in update_recvframe_attrib_88e

Remove an unnecessary temporary variable in update_recvframe_attrib_88e.
We can use the prxstat pointer directly to parse the input data. There's
no need to store a local copy in "report".

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220305144117.1380534-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused fields in struct recv_buf

The fields alloc_sz, irp_pending and pallocated_buf in struct recv_buf
are set but not used. And the field dma_transfer_addr is not used.
Remove them.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/d731acb15f82c597de53ecce8fdf1bb82dc4c386.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unneeded field pbuf

The field pbuf in struct recv_buf can be removed as it can be replaced
with pskb->data. Remove pbuf field.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/080a9269b9381089e4dc9117f35d0a2d1d0c0259.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused field pdata

The field pdata in struct recv_buf is set but not used.
Remove it.

Also remove rtl8188eu_init_recvbuf function as it does nothing now.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/7fe9ed2c6eade65c118511228283ef9d92ea4b43.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused field pend

The field pend in struct recv_buf is set but not used.
Remove it.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/2ccf7067c411716a05bb6fa0acc04d5a612b5f12.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused field ptail

The field ptail in struct recv_buf is set but not used.
Remove it.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/9574ad2dfba0cc444ce1dea1268661ed32b84799.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused field phead

The field phead in struct recv_buf is set but not used.
Remove it.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/7ff76536af7478a00b300af9a6cb666e53d22aac.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused fields in struct recv_buf

The fields len, ref_cnt and transfer_len in struct recv_buf are set
but not used. Remove them.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/fe5565c02a01babf64469333dae73cbdd841d393.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused field recvbuf_lock

The spinlock field recvbuf_lock in struct recv_buf is initialized but
not used. Remove it.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/24597a0cc19fa59139bf0a77ccd11a8229d7201f.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused field list

The field list in struct recv_buf is initialized but not used.
Remove it.

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/558177d9165792a99f6efb439f6f537e13da705b.1646321515.git.abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark rtw_endofpktfile as bool

Mark rtw_endofpktfile as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-17-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark IsFrameTypeCtrl as bool

Mark IsFrameTypeCtrl as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-16-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark IS_MCAST as bool

Mark IS_MCAST as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-15-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark check_fwstate as bool

Mark check_fwstate as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-14-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark rtl8188eu_xmitframe_complete as bool

Mark rtl8188eu_xmitframe_complete as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-13-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark is_ap_in_tkip as bool

Mark is_ap_in_tkip as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-12-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark is_basicrate as bool

Mark is_basicrate as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-11-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark cckratesonly_included as bool

Mark cckratesonly_included as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-10-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark cckrates_included as bool

Mark cckrates_included as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-9-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark recv_indicatepkts_in_order as bool

Mark recv_indicatepkts_in_order as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-8-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark enqueue_reorder_recvframe as bool

Mark enqueue_reorder_recvframe as bool as it returns true/false.
Also, make it static as it's only used in rtw_recv.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-7-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark check_indicate_seq as bool

Mark check_indicate_seq as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-6-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark PS_RDY_CHECK as bool

Mark PS_RDY_CHECK as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-5-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark rtw_is_desired_network as bool

Mark rtw_is_desired_network as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-4-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark rtw_is_cckratesonly_included as bool

Mark rtw_is_cckratesonly_included as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-3-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: mark rtw_is_cckrates_included as bool

Mark rtw_is_cckrates_included as bool as it returns true/false.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vihas Makwana <makvihas@gmail.com>
Link: https://lore.kernel.org/r/20220302204737.49056-2-makvihas@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vt6655: remove redundant assignment of pointer tx_key

Pointer tx_key is being assigned a value that is never read, it is
being re-assigned a new value later. The assignment is redundant
and can be removed.

Cleans up clan scan build warning:
drivers/staging/vt6655/rxtx.c:1311:3: warning: Value stored
to 'tx_key' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220307143625.136189-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: gdm724x: remove redundant assignment of pointer w

Pointer w is being assigned a value that is never read, it is
being re-assigned a new value later. The assignment is redundant
and can be removed.

Cleans up clan scan build warning:
drivers/staging/gdm724x/gdm_lte.c:198:2: warning: Value stored to 'w'
is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220307144603.136846-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: vchiq_arm: make vchiq_platform_get_arm_state() static

Fix "no previous prototype" W=1 warning by making the function
vchiq_platform_get_arm_state() static.

While at it, realign the function declaration in one line and reposition
the asterisk symbol to fulfill the 'foo *bar' syntax.

Signed-off-by: Gaston Gonzalez <gascoar@gmail.com>
Link: https://lore.kernel.org/r/216ad30d674b80e0051ecc233ac26ddb1d3e0e75.1646255044.git.gascoar@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-dts: fix cpuintc and fixedregulator dtc warnings, fix xhci

Fix the cpuintc and fixedregulator dtc warnings:

Warning (unit_address_vs_reg): /cpuintc@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /fixedregulator@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /fixedregulator@1: node has a unit name, but no reg property
Warning (unique_unit_address): /cpuintc@0: duplicate unit-address (also used in node /fixedregulator@0)

Remove the unnecessary status = "okay" property from the xhci node.

Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20220312091832.6269-1-arinc.unal@arinc9.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-dts: fix GB-PC2 devicetree

Fix the GB-PC2 devicetree. Refer to the schematics of the device for more
information.

GB-PC2 devicetree fixes:
- Include mt7621.dtsi instead of gbpc1.dts. Add the missing definitions.
- Remove gpio-leds node as the system LED is not wired to anywhere on
the board and the power LED is directly wired to GND.
- Remove uart3 pin group from gpio-pinmux node as it's not used as GPIO.
- Use reg 7 for the external phy to be on par with
Documentation/devicetree/bindings/net/dsa/mt7530.txt.
- Use the status value "okay".

Link: https://github.com/ngiger/GnuBee_Docs/blob/master/GB-PCx/Documents/GB-PC2_V1.1_schematic.pdf
Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20220311090320.3068-2-arinc.unal@arinc9.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: mt7621-dts: fix LEDs and pinctrl on GB-PC1 devicetree

Fix LED and pinctrl definitions on the GB-PC1 devicetree. Refer to the
schematics of the device for more information.

LED fixes:
- Change GPIO6 LED label from system to power as GPIO6 is connected to
PLED.
- Add default-on default-trigger to power LED.
- Change GPIO8 LED label from status to system as GPIO8 is connected to
SYS_LED.
- Add disk-activity default-trigger to system LED.
- Switch to the color:function naming scheme.
- Remove lan1 and lan2 LEDs as they don't exist.

Pinctrl fixes:
- Claim state_default node under pinctrl node.
- Change pinctrl0 node name to state-default.
- Change gpio node name to gpio-pinmux to respect
Documentation/devicetree/bindings/pinctrl/ralink,rt2880-pinmux.yaml.
- Sort pin groups alphabetically.

Misc fixes:
- Fix formatting.
- Use the status value "okay".
- Define hexadecimal addresses in lower case.
- Make hexadecimal addresses for memory easier to read.

Link: https://github.com/ngiger/GnuBee_Docs/blob/master/GB-PCx/Documents/GB-PC1_V1.0_Schematic.pdf
Tested-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20220311090320.3068-1-arinc.unal@arinc9.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: fix typos in comments

Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20220314115354.144023-8-Julia.Lawall@inria.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 5.17-rc8 into staging-next

We need the staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Linux 5.17-rc8

Merge tag 'x86_urgent_for_v5.17_rc8' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Free shmem backing storage for SGX enclave pages when those are
   swapped back into EPC memory

 - Prevent do_int3() from being kprobed, to avoid recursion

 - Remap setup_data and setup_indirect structures properly when
   accessing their members

 - Correct the alternatives patching order for modules too

* tag 'x86_urgent_for_v5.17_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Free backing memory after faulting the enclave page
  x86/traps: Mark do_int3() NOKPROBE_SYMBOL
  x86/boot: Add setup_indirect support in early_memremap_is_setup_data()
  x86/boot: Fix memremap of setup_indirect structures
  x86/module: Fix the paravirt vs alternative order

Merge tag 'perf-tools-fixes-for-v5.17-2022-03-12' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix event parser error for hybrid systems

 - Fix NULL check against wrong variable in 'perf bench' and in the
   parsing code

 - Update arm64 KVM headers from the kernel sources

 - Sync cpufeatures header with the kernel sources

* tag 'perf-tools-fixes-for-v5.17-2022-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf parse: Fix event parser error for hybrid systems
  perf bench: Fix NULL check against wrong variable
  perf parse-events: Fix NULL check against wrong variable
  tools headers cpufeatures: Sync with the kernel sources
  tools kvm headers arm64: Update KVM headers from the kernel sources

Merge tag 'drm-fixes-2022-03-12' of git://anongit.freedesktop.org/drm/drm

Pull drm kconfig fix from Dave Airlie:
 "Thorsten pointed out this had fallen down the cracks and was in -next
  only, I've picked it out, fixed up it's Fixes: line.

   - fix regression in Kconfig"

* tag 'drm-fixes-2022-03-12' of git://anongit.freedesktop.org/drm/drm:
  drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP

perf parse: Fix event parser error for hybrid systems

This bug happened on hybrid systems when both cpu_core and cpu_atom
have the same event name such as "UOPS_RETIRED.MS" while their event
terms are different, then during perf stat, the event for cpu_atom
will parse fail and then no output for cpu_atom.

UOPS_RETIRED.MS -> cpu_core/period=0x1e8483,umask=0x4,event=0xc2,frontend=0x8/
UOPS_RETIRED.MS -> cpu_atom/period=0x1e8483,umask=0x1,event=0xc2/

It is because event terms in the "head" of parse_events_multi_pmu_add
will be changed to event terms for cpu_core after parsing UOPS_RETIRED.MS
for cpu_core, then when parsing the same event for cpu_atom, it still
uses the event terms for cpu_core, but event terms for cpu_atom are
different with cpu_core, the event parses for cpu_atom will fail. This
patch fixes it, the event terms should be parsed from the original
event.

This patch can work for the hybrid systems that have the same event
in more than 2 PMUs. It also can work in non-hybrid systems.

Before:

  # perf stat -v  -e  UOPS_RETIRED.MS  -a sleep 1

  Using CPUID GenuineIntel-6-97-1
  UOPS_RETIRED.MS -> cpu_core/period=0x1e8483,umask=0x4,event=0xc2,frontend=0x8/
  Control descriptor is not initialized
  UOPS_RETIRED.MS: 2737845 16068518485 16068518485

 Performance counter stats for 'system wide':

         2,737,845      cpu_core/UOPS_RETIRED.MS/

       1.002553850 seconds time elapsed

After:

  # perf stat -v  -e  UOPS_RETIRED.MS  -a sleep 1

  Using CPUID GenuineIntel-6-97-1
  UOPS_RETIRED.MS -> cpu_core/period=0x1e8483,umask=0x4,event=0xc2,frontend=0x8/
  UOPS_RETIRED.MS -> cpu_atom/period=0x1e8483,umask=0x1,event=0xc2/
  Control descriptor is not initialized
  UOPS_RETIRED.MS: 1977555 16076950711 16076950711
  UOPS_RETIRED.MS: 568684 8038694234 8038694234

 Performance counter stats for 'system wide':

         1,977,555      cpu_core/UOPS_RETIRED.MS/
           568,684      cpu_atom/UOPS_RETIRED.MS/

       1.004758259 seconds time elapsed

Fixes: fb0811535e92c6c1 ("perf parse-events: Allow config on kernel PMU events")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220307151627.30049-1-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf bench: Fix NULL check against wrong variable

We did a NULL check after "epollfdp = calloc(...)", but we checked
"epollfd" instead of "epollfdp".

Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
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>
Link: https://lore.kernel.org/r/tencent_B5D64530EB9C7DBB8D2C88A0C790F1489D0A@qq.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf parse-events: Fix NULL check against wrong variable

We did a null check after "tmp->symbol = strdup(...)", but we checked
"list->symbol" other than "tmp->symbol".

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Cc: Alexander Shishkin <alexander.shishkin@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>
Link: https://lore.kernel.org/r/tencent_DF39269807EC9425E24787E6DB632441A405@qq.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools headers cpufeatures: Sync with the kernel sources

To pick the changes from:

  d45476d983240937 ("x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE")

Its just a comment fixup.

This only causes these perf files to be rebuilt:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h

Cc: Borislav Petkov <bp@suse.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/YiyiHatGaJQM7l/Y@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools kvm headers arm64: Update KVM headers from the kernel sources

To pick the changes from:

  a5905d6af492ee6a ("KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated")

That don't causes any changes in tooling (when built on x86), only
addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/lkml/YiyhAK6sVPc83FaI@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP

As reported in [1], DRM_PANEL_EDP depends on DRM_DP_HELPER. Select
the option to fix the build failure. The error message is shown
below.

  arm-linux-gnueabihf-ld: drivers/gpu/drm/panel/panel-edp.o: in function
    `panel_edp_probe': panel-edp.c:(.text+0xb74): undefined reference to
    `drm_panel_dp_aux_backlight'
  make[1]: *** [/builds/linux/Makefile:1222: vmlinux] Error 1

The issue has been reported before, when DisplayPort helpers were
hidden behind the option CONFIG_DRM_KMS_HELPER. [2]

v2:
* fix and expand commit description (Arnd)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 9d6366e743f3 ("drm: fb_helper: improve CONFIG_FB dependency")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/dri-devel/CA+G9fYvN0NyaVkRQmA1O6rX7H8PPaZrUAD7=RDy33QY9rUU-9g@mail.gmail.com/
Link: https://lore.kernel.org/all/20211117062704.14671-1-rdunlap@infradead.org/
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220203093922.20754-1-tzimmermann@suse.de
Signed-off-by: Dave Airlie <airlied@redhat.com>

ARM: Spectre-BHB: provide empty stub for non-config

When CONFIG_GENERIC_CPU_VULNERABILITIES is not set, references
to spectre_v2_update_state() cause a build error, so provide an
empty stub for that function when the Kconfig option is not set.

Fixes this build error:

  arm-linux-gnueabi-ld: arch/arm/mm/proc-v7-bugs.o: in function `cpu_v7_bugs_init':
  proc-v7-bugs.c:(.text+0x52): undefined reference to `spectre_v2_update_state'
  arm-linux-gnueabi-ld: proc-v7-bugs.c:(.text+0x82): undefined reference to `spectre_v2_update_state'

Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'riscv-for-linus-5.17-rc8' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - prevent users from enabling the alternatives framework (and thus
   errata handling) on XIP kernels, where runtime code patching does not
   function correctly.

 - properly detect offset overflow for AUIPC-based relocations in
   modules. This may manifest as modules calling arbitrary invalid
   addresses, depending on the address allocated when a module is
   loaded.

* tag 'riscv-for-linus-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix auipc+jalr relocation range checks
  riscv: alternative only works on !XIP_KERNEL

Merge tag 'powerpc-5.17-6' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:
 "Fix STACKTRACE=n build, in particular for skiroot_defconfig"

* tag 'powerpc-5.17-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc: Fix STACKTRACE=n build

ARM: fix Thumb2 regression with Spectre BHB

When building for Thumb2, the vectors make use of a local label. Sadly,
the Spectre BHB code also uses a local label with the same number which
results in the Thumb2 reference pointing at the wrong place. Fix this
by changing the number used for the Spectre BHB local label.

Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'mmc-v5.17-rc6' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Restore (mostly) the busy polling for MMC_SEND_OP_COND

  MMC host:
   - meson-gx: Fix DMA usage of meson_mmc_post_req()"

* tag 'mmc-v5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: core: Restore (almost) the busy polling for MMC_SEND_OP_COND
  mmc: meson: Fix usage of meson_mmc_post_req()

x86/sgx: Free backing memory after faulting the enclave page

There is a limited amount of SGX memory (EPC) on each system.  When that
memory is used up, SGX has its own swapping mechanism which is similar
in concept but totally separate from the core mm/* code.  Instead of
swapping to disk, SGX swaps from EPC to normal RAM.  That normal RAM
comes from a shared memory pseudo-file and can itself be swapped by the
core mm code.  There is a hierarchy like this:

EPC <-> shmem <-> disk

After data is swapped back in from shmem to EPC, the shmem backing
storage needs to be freed.  Currently, the backing shmem is not freed.
This effectively wastes the shmem while the enclave is running.  The
memory is recovered when the enclave is destroyed and the backing
storage freed.

Sort this out by freeing memory with shmem_truncate_range(), as soon as
a page is faulted back to the EPC.  In addition, free the memory for
PCMD pages as soon as all PCMD's in a page have been marked as unused
by zeroing its contents.

Cc: stable@vger.kernel.org
Fixes: 1728ab54b4be ("x86/sgx: Add a page reclaimer")
Reported-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20220303223859.273187-1-jarkko@kernel.org

Merge branch 'davidh' (fixes from David Howells)

Merge misc fixes from David Howells:
 "A set of patches for watch_queue filter issues noted by Jann. I've
  added in a cleanup patch from Christophe Jaillet to convert to using
  formal bitmap specifiers for the note allocation bitmap.

  Also two filesystem fixes (afs and cachefiles)"

* emailed patches from David Howells <dhowells@redhat.com>:
  cachefiles: Fix volume coherency attribute
  afs: Fix potential thrashing in afs writeback
  watch_queue: Make comment about setting ->defunct more accurate
  watch_queue: Fix lack of barrier/sync/lock between post and read
  watch_queue: Free the alloc bitmap when the watch_queue is torn down
  watch_queue: Fix the alloc bitmap size to reflect notes allocated
  watch_queue: Use the bitmap API when applicable
  watch_queue: Fix to always request a pow-of-2 pipe ring size
  watch_queue: Fix to release page in ->release()
  watch_queue, pipe: Free watchqueue state after clearing pipe ring
  watch_queue: Fix filter limit check

cachefiles: Fix volume coherency attribute

A network filesystem may set coherency data on a volume cookie, and if
given, cachefiles will store this in an xattr on the directory in the
cache corresponding to the volume.

The function that sets the xattr just stores the contents of the volume
coherency buffer directly into the xattr, with nothing added; the
checking function, on the other hand, has a cut'n'paste error whereby it
tries to interpret the xattr contents as would be the xattr on an
ordinary file (using the cachefiles_xattr struct).  This results in a
failure to match the coherency data because the buffer ends up being
shifted by 18 bytes.

Fix this by defining a structure specifically for the volume xattr and
making both the setting and checking functions use it.

Since the volume coherency doesn't work if used, take the opportunity to
insert a reserved field for future use, set it to 0 and check that it is
0.  Log mismatch through the appropriate tracepoint.

Note that this only affects cifs; 9p, afs, ceph and nfs don't use the
volume coherency data at the moment.

Fixes: 32e150037dce ("fscache, cachefiles: Store the volume coherency data")
Reported-by: Rohith Surabattula <rohiths.msft@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: Steve French <smfrench@gmail.com>
cc: linux-cifs@vger.kernel.org
cc: linux-cachefs@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

afs: Fix potential thrashing in afs writeback

In afs_writepages_region(), if the dirty page we find is undergoing
writeback or write to cache, but the sync_mode is WB_SYNC_NONE, we go
round the loop trying the same page again and again with no pausing or
waiting unless and until another thread manages to clear the writeback
and fscache flags.

Fix this with three measures:

 (1) Advance start to after the page we found.

 (2) Break out of the loop and return if rescheduling is requested.

 (3) Arbitrarily give up after a maximum of 5 skips.

Fixes: 31143d5d515e ("AFS: implement basic file write support")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marc Dionne <marc.dionne@auristor.com>
Acked-by: Marc Dionne <marc.dionne@auristor.com>
Link: https://lore.kernel.org/r/164692725757.2097000.2060513769492301854.stgit@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

x86/traps: Mark do_int3() NOKPROBE_SYMBOL

Since kprobe_int3_handler() is called in do_int3(), probing do_int3()
can cause a breakpoint recursion and crash the kernel. Therefore,
do_int3() should be marked as NOKPROBE_SYMBOL.

Fixes: 21e28290b317 ("x86/traps: Split int3 handler up")
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220310120915.63349-1-lihuafei1@huawei.com

watch_queue: Make comment about setting ->defunct more accurate

watch_queue_clear() has a comment stating that setting ->defunct to true
preventing new additions as well as preventing notifications.  Whilst
the latter is true, the first bit is superfluous since at the time this
function is called, the pipe cannot be accessed to add new event
sources.

Remove the "new additions" bit from the comment.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue: Fix lack of barrier/sync/lock between post and read

There's nothing to synchronise post_one_notification() versus
pipe_read().  Whilst posting is done under pipe->rd_wait.lock, the
reader only takes pipe->mutex which cannot bar notification posting as
that may need to be made from contexts that cannot sleep.

Fix this by setting pipe->head with a barrier in post_one_notification()
and reading pipe->head with a barrier in pipe_read().

If that's not sufficient, the rd_wait.lock will need to be taken,
possibly in a ->confirm() op so that it only applies to notifications.
The lock would, however, have to be dropped before copy_page_to_iter()
is invoked.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue: Free the alloc bitmap when the watch_queue is torn down

Free the watch_queue note allocation bitmap when the watch_queue is
destroyed.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue: Fix the alloc bitmap size to reflect notes allocated

Currently, watch_queue_set_size() sets the number of notes available in
wqueue->nr_notes according to the number of notes allocated, but sets
the size of the bitmap to the unrounded number of notes originally asked
for.

Fix this by setting the bitmap size to the number of notes we're
actually going to make available (ie. the number allocated).

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue: Use the bitmap API when applicable

Use bitmap_alloc() to simplify code, improve the semantic and reduce
some open-coded arithmetic in allocator arguments.

Also change a memset(0xff) into an equivalent bitmap_fill() to keep
consistency.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue: Fix to always request a pow-of-2 pipe ring size

The pipe ring size must always be a power of 2 as the head and tail
pointers are masked off by AND'ing with the size of the ring - 1.
watch_queue_set_size(), however, lets you specify any number of notes
between 1 and 511.  This number is passed through to pipe_resize_ring()
without checking/forcing its alignment.

Fix this by rounding the number of slots required up to the nearest
power of two.  The request is meant to guarantee that at least that many
notifications can be generated before the queue is full, so rounding
down isn't an option, but, alternatively, it may be better to give an
error if we aren't allowed to allocate that much ring space.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue: Fix to release page in ->release()

When a pipe ring descriptor points to a notification message, the
refcount on the backing page is incremented by the generic get function,
but the release function, which marks the bitmap, doesn't drop the page
ref.

Fix this by calling generic_pipe_buf_release() at the end of
watch_queue_pipe_buf_release().

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue, pipe: Free watchqueue state after clearing pipe ring

In free_pipe_info(), free the watchqueue state after clearing the pipe
ring as each pipe ring descriptor has a release function, and in the
case of a notification message, this is watch_queue_pipe_buf_release()
which tries to mark the allocation bitmap that was previously released.

Fix this by moving the put of the pipe's ref on the watch queue to after
the ring has been cleared.  We still need to call watch_queue_clear()
before doing that to make sure that the pipe is disconnected from any
notification sources first.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

watch_queue: Fix filter limit check

In watch_queue_set_filter(), there are a couple of places where we check
that the filter type value does not exceed what the type_filter bitmap
can hold.  One place calculates the number of bits by:

   if (tf[i].type >= sizeof(wfilter->type_filter) * 8)

which is fine, but the second does:

   if (tf[i].type >= sizeof(wfilter->type_filter) * BITS_PER_LONG)

which is not.  This can lead to a couple of out-of-bounds writes due to
a too-large type:

 (1) __set_bit() on wfilter->type_filter
 (2) Writing more elements in wfilter->filters[] than we allocated.

Fix this by just using the proper WATCH_TYPE__NR instead, which is the
number of types we actually know about.

The bug may cause an oops looking something like:

  BUG: KASAN: slab-out-of-bounds in watch_queue_set_filter+0x659/0x740
  Write of size 4 at addr ffff88800d2c66bc by task watch_queue_oob/611
  ...
  Call Trace:
   <TASK>
   dump_stack_lvl+0x45/0x59
   print_address_description.constprop.0+0x1f/0x150
   ...
   kasan_report.cold+0x7f/0x11b
   ...
   watch_queue_set_filter+0x659/0x740
   ...
   __x64_sys_ioctl+0x127/0x190
   do_syscall_64+0x43/0x90
   entry_SYSCALL_64_after_hwframe+0x44/0xae

  Allocated by task 611:
   kasan_save_stack+0x1e/0x40
   __kasan_kmalloc+0x81/0xa0
   watch_queue_set_filter+0x23a/0x740
   __x64_sys_ioctl+0x127/0x190
   do_syscall_64+0x43/0x90
   entry_SYSCALL_64_after_hwframe+0x44/0xae

  The buggy address belongs to the object at ffff88800d2c66a0
   which belongs to the cache kmalloc-32 of size 32
  The buggy address is located 28 bytes inside of
   32-byte region [ffff88800d2c66a0, ffff88800d2c66c0)

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'drm-fixes-2022-03-11' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "As expected at this stage its pretty quiet, one sun4i mixer fix and
  one i915 display flicker fix:

  i915:
   - fix psr screen flicker

  sun4i:
   - mixer format fix"

* tag 'drm-fixes-2022-03-11' of git://anongit.freedesktop.org/drm/drm:
  drm/sun4i: mixer: Fix P010 and P210 format numbers
  drm/i915/psr: Set "SF Partial Frame Enable" also on full update