staging: r8188eu: remove unused constant CRC32_POLY

Remove unused constant CRC32_POLY.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903190444.15585-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove enum hardware_type

From enum hardware_type only HARDWARE_TYPE_RTL8188EU is used in the
driver. Remove the enum and define HARDWARE_TYPE_RTL8188EU.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903093354.12645-7-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove IS_HARDWARE_TYPE_8188* macros

The IS_HARDWARE_TYPE_8188* macros are not needed because the driver
is for RTL8188EU chips, remove them.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903093354.12645-6-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused enum rt_eeprom_type

Remove unused enum rt_eeprom_type.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903093354.12645-5-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused enum from ieee80211.h.

Remove unused enum from ieee80211.h.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903093354.12645-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused defines from mp_custom_oid.h

Remove unused defines from mp_custom_oid.h.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903093354.12645-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove header file rtw_ioctl_rtl.h

All functions declared in rtw_ioctl_rtl.h are not implemented.
Remove rtw_ioctl_rtl.h and its includes.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903093354.12645-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove possible deadlock when disconnect

when turning off a connection, lockdep complains with the
following warning (a modprobe has been done but the same
happens with a disconnection from NetworkManager,
it's enough to trigger a cfg80211_disconnect call):

[  682.855867] ======================================================
[  682.855877] WARNING: possible circular locking dependency detected
[  682.855887] 5.14.0-rc6+ #16 Tainted: G         C OE
[  682.855898] ------------------------------------------------------
[  682.855906] modprobe/1770 is trying to acquire lock:
[  682.855916] ffffb6d000332b00 (&pxmitpriv->lock){+.-.}-{2:2},
at: rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.856073]
               but task is already holding lock:
[  682.856081] ffffb6d0003336a8 (&pstapriv->sta_hash_lock){+.-.}-{2:2},
at: rtw_free_assoc_resources+0x48/0x110 [r8723bs]
[  682.856207]
               which lock already depends on the new lock.

[  682.856215]
               the existing dependency chain (in reverse order) is:
[  682.856223]
               -> #1 (&pstapriv->sta_hash_lock){+.-.}-{2:2}:
[  682.856247]        _raw_spin_lock_bh+0x34/0x40
[  682.856265]        rtw_get_stainfo+0x9a/0x110 [r8723bs]
[  682.856389]        rtw_xmit_classifier+0x27/0x130 [r8723bs]
[  682.856515]        rtw_xmitframe_enqueue+0xa/0x20 [r8723bs]
[  682.856642]        rtl8723bs_hal_xmit+0x3b/0xb0 [r8723bs]
[  682.856752]        rtw_xmit+0x4ef/0x890 [r8723bs]
[  682.856879]        _rtw_xmit_entry+0xba/0x350 [r8723bs]
[  682.856981]        dev_hard_start_xmit+0xee/0x320
[  682.856999]        sch_direct_xmit+0x8c/0x330
[  682.857014]        __dev_queue_xmit+0xba5/0xf00
[  682.857030]        packet_sendmsg+0x981/0x1b80
[  682.857047]        sock_sendmsg+0x5b/0x60
[  682.857060]        __sys_sendto+0xf1/0x160
[  682.857073]        __x64_sys_sendto+0x24/0x30
[  682.857087]        do_syscall_64+0x3a/0x80
[  682.857102]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  682.857117]
               -> #0 (&pxmitpriv->lock){+.-.}-{2:2}:
[  682.857142]        __lock_acquire+0xfd9/0x1b50
[  682.857158]        lock_acquire+0xb4/0x2c0
[  682.857172]        _raw_spin_lock_bh+0x34/0x40
[  682.857185]        rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.857308]        rtw_free_assoc_resources+0x53/0x110 [r8723bs]
[  682.857415]        cfg80211_rtw_disconnect+0x4b/0x70 [r8723bs]
[  682.857522]        cfg80211_disconnect+0x12e/0x2f0 [cfg80211]
[  682.857759]        cfg80211_leave+0x2b/0x40 [cfg80211]
[  682.857961]        cfg80211_netdev_notifier_call+0xa9/0x560 [cfg80211]
[  682.858163]        raw_notifier_call_chain+0x41/0x50
[  682.858180]        __dev_close_many+0x62/0x100
[  682.858195]        dev_close_many+0x7d/0x120
[  682.858209]        unregister_netdevice_many+0x416/0x680
[  682.858225]        unregister_netdevice_queue+0xab/0xf0
[  682.858240]        unregister_netdev+0x18/0x20
[  682.858255]        rtw_unregister_netdevs+0x28/0x40 [r8723bs]
[  682.858360]        rtw_dev_remove+0x24/0xd0 [r8723bs]
[  682.858463]        sdio_bus_remove+0x31/0xd0 [mmc_core]
[  682.858532]        device_release_driver_internal+0xf7/0x1d0
[  682.858550]        driver_detach+0x47/0x90
[  682.858564]        bus_remove_driver+0x77/0xd0
[  682.858579]        rtw_drv_halt+0xc/0x678 [r8723bs]
[  682.858685]        __x64_sys_delete_module+0x13f/0x250
[  682.858699]        do_syscall_64+0x3a/0x80
[  682.858715]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  682.858729]
               other info that might help us debug this:

[  682.858737]  Possible unsafe locking scenario:

[  682.858744]        CPU0                    CPU1
[  682.858751]        ----                    ----
[  682.858758]   lock(&pstapriv->sta_hash_lock);
[  682.858772]                                lock(&pxmitpriv->lock);
[  682.858786]                                lock(&pstapriv->sta_hash_lock);
[  682.858799]   lock(&pxmitpriv->lock);
[  682.858812]
                *** DEADLOCK ***

[  682.858820] 5 locks held by modprobe/1770:
[  682.858831]  #0: ffff8d870697d980 (&dev->mutex){....}-{3:3},
at: device_release_driver_internal+0x1a/0x1d0
[  682.858869]  #1: ffffffffbdbbf1c8 (rtnl_mutex){+.+.}-{3:3},
at: unregister_netdev+0xe/0x20
[  682.858906]  #2: ffff8d87054ee5e8 (&rdev->wiphy.mtx){+.+.}-{3:3},
at: cfg80211_netdev_notifier_call+0x9e/0x560 [cfg80211]
[  682.859131]  #3: ffff8d870f2bc8f0 (&wdev->mtx){+.+.}-{3:3},
at: cfg80211_leave+0x20/0x40 [cfg80211]
[  682.859354]  #4: ffffb6d0003336a8 (&pstapriv->sta_hash_lock){+.-.}-{2:2},
at: rtw_free_assoc_resources+0x48/0x110 [r8723bs]
[  682.859482]
               stack backtrace:
[  682.859491] CPU: 1 PID: 1770 Comm: modprobe Tainted: G
C OE     5.14.0-rc6+ #16
[  682.859507] Hardware name: LENOVO 80NR/Madrid, BIOS DACN25WW 08/20/2015
[  682.859517] Call Trace:
[  682.859531]  dump_stack_lvl+0x56/0x6f
[  682.859551]  check_noncircular+0xdb/0xf0
[  682.859579]  __lock_acquire+0xfd9/0x1b50
[  682.859606]  lock_acquire+0xb4/0x2c0
[  682.859623]  ? rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.859752]  ? mark_held_locks+0x48/0x70
[  682.859769]  ? rtw_free_stainfo+0x4a/0x4a0 [r8723bs]
[  682.859898]  _raw_spin_lock_bh+0x34/0x40
[  682.859914]  ? rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.860039]  rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.860171]  rtw_free_assoc_resources+0x53/0x110 [r8723bs]
[  682.860286]  cfg80211_rtw_disconnect+0x4b/0x70 [r8723bs]
[  682.860397]  cfg80211_disconnect+0x12e/0x2f0 [cfg80211]
[  682.860629]  cfg80211_leave+0x2b/0x40 [cfg80211]
[  682.860836]  cfg80211_netdev_notifier_call+0xa9/0x560 [cfg80211]
[  682.861048]  ? __lock_acquire+0x4dc/0x1b50
[  682.861070]  ? lock_is_held_type+0xa8/0x110
[  682.861089]  ? lock_is_held_type+0xa8/0x110
[  682.861104]  ? find_held_lock+0x2d/0x90
[  682.861120]  ? packet_notifier+0x173/0x300
[  682.861141]  ? lock_release+0xb3/0x250
[  682.861160]  ? packet_notifier+0x192/0x300
[  682.861184]  raw_notifier_call_chain+0x41/0x50
[  682.861205]  __dev_close_many+0x62/0x100
[  682.861224]  dev_close_many+0x7d/0x120
[  682.861245]  unregister_netdevice_many+0x416/0x680
[  682.861264]  ? find_held_lock+0x2d/0x90
[  682.861284]  unregister_netdevice_queue+0xab/0xf0
[  682.861306]  unregister_netdev+0x18/0x20
[  682.861325]  rtw_unregister_netdevs+0x28/0x40 [r8723bs]
[  682.861434]  rtw_dev_remove+0x24/0xd0 [r8723bs]
[  682.861542]  sdio_bus_remove+0x31/0xd0 [mmc_core]
[  682.861615]  device_release_driver_internal+0xf7/0x1d0
[  682.861637]  driver_detach+0x47/0x90
[  682.861656]  bus_remove_driver+0x77/0xd0
[  682.861674]  rtw_drv_halt+0xc/0x678 [r8723bs]
[  682.861782]  __x64_sys_delete_module+0x13f/0x250
[  682.861801]  ? lockdep_hardirqs_on_prepare+0xf3/0x170
[  682.861817]  ? syscall_enter_from_user_mode+0x20/0x70
[  682.861836]  do_syscall_64+0x3a/0x80
[  682.861855]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  682.861873] RIP: 0033:0x7f6dbe85400b
[  682.861890] Code: 73 01 c3 48 8b 0d 6d 1e 0c 00 f7 d8 64 89
01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa
b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d
1e 0c 00 f7 d8 64 89 01 48
[  682.861906] RSP: 002b:00007ffe7a82f538 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[  682.861923] RAX: ffffffffffffffda RBX: 000055a64693bd20 RCX: 00007f6dbe85400b
[  682.861935] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000055a64693bd88
[  682.861946] RBP: 000055a64693bd20 R08: 0000000000000000 R09: 0000000000000000
[  682.861957] R10: 00007f6dbe8c7ac0 R11: 0000000000000206 R12: 000055a64693bd88
[  682.861967] R13: 0000000000000000 R14: 000055a64693bd88 R15: 00007ffe7a831848

This happens because when we enqueue a frame for
transmission we do it under xmit_priv lock, then calling
rtw_get_stainfo (needed for enqueuing) takes sta_hash_lock
and this leads to the following lock dependency:

xmit_priv->lock -> sta_hash_lock

Turning off a connection will bring to call
rtw_free_assoc_resources which will set up
the inverse dependency:

sta_hash_lock -> xmit_priv_lock

This could lead to a deadlock as lockdep complains.

Fix it by removing the xmit_priv->lock around
rtw_xmitframe_enqueue call inside rtl8723bs_hal_xmit
and put it in a smaller critical section inside
rtw_xmit_classifier, the only place where
xmit_priv data are actually accessed.

Replace spin_{lock,unlock}_bh(pxmitpriv->lock)
in other tx paths leading to rtw_xmitframe_enqueue
call with spin_{lock,unlock}_bh(psta->sleep_q.lock)
- it's not clear why accessing a sleep_q was protected
by a spinlock on xmitpriv->lock.

This way is avoided the same faulty lock nesting
order.

CC: Larry Finger <Larry.Finger@lwfinger.net>
Tested-on: Lenovo Ideapad MiiX 300-10IBY
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/20210902093559.9779-1-fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: os_dep: use kmemdup instead of kzalloc and memcpy

Fixes coccicheck warning:WARNING opportunity for kmemdup in ioctl_linux.c

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/YTJhwQstKPUYRwN+@user
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unnecessary parentheses

Remove unnecessary parentheses around a variable to improve
readability.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-9-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: add missing blank line after declarations

Add a missing blank line after declarations in rtw_macaddr_cfg()
to clear a checkpatch warning.

WARNING: Missing a blank line after declarations

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-8-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: use ether_addr_copy() in rtw_macaddr_cfg()

Use ether_addr_copy() in rtw_macaddr_cfg() to copy the mac address.
The buffers are properly aligned.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-7-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: use random default mac address

Use a random default mac address instead of a fixed one to reduce the
likelihood of mac address collision.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-6-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: use is_*_ether_addr() in rtw_macaddr_cfg()

Use is_broadcast_ether_addr() and is_zero_ether_addr() in
rtw_macaddr_cfg(). The buffer is properly aligned.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-5-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: use ETH_ALEN

Use ETH_ALEN instead of hard-coding the value for the mac_addr buffer
in struct eeprom_priv.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: ensure mac address buffer is properly aligned

Ensure the mac address buffer in struct eeprom_priv is properly
aligned for use with functions from <linux/etherdevice.h>.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: use mac_pton() in rtw_macaddr_cfg()

Instead of a custom approach use mac_pton() to convert the mac
address string. With mac_pton() the driver also validates the
input now.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused function SetBcnCtrlReg()

Remove unused function SetBcnCtrlReg().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830092153.9283-5-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove ICType from struct HAL_VERSION

IC type is always 8188E. Remove ICType from struct HAL_VERSION,
all macros that check it and related code.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830092153.9283-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove set but unused variable

The local variable rfPath in Hal_SetAntennaPathPower() and
Hal_SetTxPower() is set but not used. Remove the variable
and related code.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830092153.9283-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove Hal_MPT_CCKTxPowerAdjustbyIndex()

IC Type is always 8188E. Therefore, the test
"if (!IS_92C_SERIAL(pHalData->VersionID))" in
Hal_MPT_CCKTxPowerAdjustbyIndex() is always true and the function
does nothing, remove it.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830092153.9283-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove commented constants from wifi.h

Remove commented constants from wifi.h.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829180717.15393-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unused constants from wifi.h

The constants WLAN_REASON_PWR_CAPABILITY_NOT_VALID and
WLAN_REASON_SUPPORTED_CHANNEL_NOT_VALID defined in wifi.h
are unused, remove them.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829180717.15393-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: refactor field of struct odm_rf_cal

Refactor the field IQKMatrixRegSetting of struct odm_rf_cal to be not
an array. The driver is for chips that operate in the 2.4 GHz band only.
So only the first element of the array is used and there is no need for
an array.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829175624.5915-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove local variable Indexforchannel

The local variable Indexforchannel in function
odm_TXPowerTrackingCallback_ThermalMeter_8188E() is initilaized to 0
and never changed. Remove the variable and replace its usage with 0.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829175624.5915-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove unnecessary type casts

The field rx_data of struct recv_frame and the local variable pframe
both have type (u8 *). Remove unnecessary type casts to (unsigned char *).

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829112555.8726-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: convert type of second parameter of rtw_*_decrypt()

Convert the type of the second parameter of the rtw_*_decrypt() functions
to struct recv_frame.

All callers of the functions cast the type to (u8 *) and in the functions
it is casted back to the original type. Changing the type of the second
parameter to struct recv_frame avoids these unnecessary casts and improves
readability.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829112555.8726-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: convert type of second parameter of rtw_*_encrypt()

Convert the type of the second parameter of the rtw_*_encrypt() functions
to struct xmit_frame.

All callers of the functions cast the type to (u8 *) and in the functions
it is casted back to the original type. Changing the type of the second
parameter to struct xmit_frame avoids these unnecessary casts and improves
readability.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829112555.8726-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove should_forbid_n_rate()

Function should_forbid_n_rate() is unused, remove it.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829092502.3658-7-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove is_ap_in_wep()

Function is_ap_in_wep() is unused, remove it.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829092502.3658-6-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove CAM_empty_entry()

Function CAM_empty_entry() is unused, remove it.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829092502.3658-5-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove get_bsstype()

Function get_bsstype() is unused, remove it.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829092502.3658-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove rtw_get_oper_choffset()

Function rtw_get_oper_choffset() is unused, remove it.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829092502.3658-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove rtw_get_oper_bw()

Function rtw_get_oper_bw() is unused, remove it.

Acked-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829092502.3658-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove rtl8188e_PHY_ConfigRFWithParaFile()

Function rtl8188e_PHY_ConfigRFWithParaFile() is unused, remove it.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210828170834.31388-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove rtl8188e_PHY_ConfigRFWithHeaderFile()

Function rtl8188e_PHY_ConfigRFWithHeaderFile() is not implemented,
remove the declaration from Hal8188EPhyCfg.h.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210828170834.31388-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: core: remove condition with no effect

Remove the condition with no effect (if == else) and group multiple
cases which execute same statement in rtw_mlme_ext.c

Reviewed-by: Pavel Skripkin <paskripkin@gmail.com>
Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/YStM2wxtkDAnRemt@user
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: core: remove unused function

Remove unused function proc_get_adapter_state() from rtw_debug.c file.

Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/YSpP0+aHdq3Roleo@user
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8118eu: remove useless parts of judgements from os_dep/ioctl_linux.

Remove the check of the pointer 'pregpriv' that is impossible to be
NULL. There is no need to check if pregpriv is NULL.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: xu xin <xu.xin16@zte.com.cn>
Thanks-to: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20210830012811.3384-1-xu.xin16@zte.com.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: os_dep: remove unused static variable

Remove unused static variable rtw_enusbss from os_intfs.c file.

Acked-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/YSoz5Qip12K899SN@user
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: clean up comparsions to NULL

Clean up comparsions to NULL reported by checkpatch.

x == NULL -> !x
x != NULL -> x

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210829154533.11054-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unused _rtw_init_queue() function

remove _rtw_init_queue() left unused by previous commit
in this series.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/3c03fcfbe799195c84608b05fc54efe921bef4de.1630307025.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: remove unnecessary parentheses

Fix the following post commit hook checkpatch issues:

CHECK: Unnecessary parentheses around pcmdpriv->cmd_queue
103: FILE: drivers/staging/rtl8723bs/core/rtw_cmd.c:169:
+ INIT_LIST_HEAD(&(pcmdpriv->cmd_queue).queue);

CHECK: Unnecessary parentheses around pcmdpriv->cmd_queue
104: FILE: drivers/staging/rtl8723bs/core/rtw_cmd.c:170:
+ spin_lock_init(&(pcmdpriv->cmd_queue).lock);

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/de4fcdb3ff45671333713b27f1dcf376b22f3978.1630307025.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8723bs: unwrap initialization of queues

unwrap initialization of queues to avoid false positive
lockdep warning:

[   27.350258] ============================================
[   27.350267] WARNING: possible recursive locking detected
[   27.350276] 5.14.0-rc6+ #16 Tainted: G         C OE
[   27.350288] --------------------------------------------
[   27.350295] RTW_CMD_THREAD/679 is trying to acquire lock:
[   27.350306] ffffa846c03290c8 (&(pqueue->lock)){+.-.}-{2:2},
at: rtw_alloc_network+0x1b/0xa0 [r8723bs]
[   27.350441]
               but task is already holding lock:
[   27.350448] ffffa846c0329118 (&(pqueue->lock)){+.-.}-{2:2},
at: rtw_update_scanned_network+0x33/0x1d0 [r8723bs]
[   27.350573]
               other info that might help us debug this:
[   27.350581]  Possible unsafe locking scenario:

[   27.350588]        CPU0
[   27.350594]        ----
[   27.350600]   lock(&(pqueue->lock));
[   27.350614]   lock(&(pqueue->lock));
[   27.350627]
                *** DEADLOCK ***

[   27.350634]  May be due to missing lock nesting notation

[   27.350641] 2 locks held by RTW_CMD_THREAD/679:
[   27.350652]  #0: ffffa846c0329038 (&pmlmepriv->lock){+...}-{2:2},
at: rtw_survey_event_callback+0x2d/0xe0 [r8723bs]
[   27.350780]  #1: ffffa846c0329118 (&(pqueue->lock)){+.-.}-{2:2},
at: rtw_update_scanned_network+0x33/0x1d0 [r8723bs]
[   27.350907]
               stack backtrace:
[   27.350916] CPU: 3 PID: 679 Comm: RTW_CMD_THREAD Tainted: G
C OE     5.14.0-rc6+ #16
[   27.350933] Hardware name: LENOVO 80NR/Madrid, BIOS DACN25WW
08/20/2015
[   27.350943] Call Trace:
[   27.350959]  dump_stack_lvl+0x56/0x6f
[   27.350982]  __lock_acquire.cold.79+0x137/0x298
[   27.351012]  lock_acquire+0xb4/0x2c0
[   27.351031]  ? rtw_alloc_network+0x1b/0xa0 [r8723bs]
[   27.351140]  ? rtw_update_scanned_network+0x33/0x1d0 [r8723bs]
[   27.351254]  _raw_spin_lock_bh+0x34/0x40
[   27.351271]  ? rtw_alloc_network+0x1b/0xa0 [r8723bs]
[   27.351378]  rtw_alloc_network+0x1b/0xa0 [r8723bs]
[   27.351488]  rtw_update_scanned_network+0xa5/0x1d0 [r8723bs]
[   27.351605]  rtw_survey_event_callback+0x54/0xe0 [r8723bs]
[   27.351719]  mlme_evt_hdl+0x4e/0x70 [r8723bs]
[   27.351839]  rtw_cmd_thread+0x16c/0x3d0 [r8723bs]
[   27.351945]  ? rtw_stop_cmd_thread+0x50/0x50 [r8723bs]
[   27.352045]  kthread+0x136/0x160
[   27.352064]  ? set_kthread_struct+0x40/0x40
[   27.352083]  ret_from_fork+0x22/0x30

This happens because the wrapping function _rtw_init_queues()
bring lockdep considering all queues as a single one. But
all queues are different with their own lock.

Applied the following semantic patch:

@@
expression a;
@@

-       _rtw_init_queue(&a);
+       INIT_LIST_HEAD(&a.queue);
+       spin_lock_init(&a.lock);

Reported-by: Hans De Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/c2c3a18cc2b883feab74f150ccbaa4f2cc11995c.1630307025.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wlan-ng: Remove filenames from files

Fix checkpatch warnings about having filenames in the files.

Signed-off-by: Aldas Taraškevičius <aldas60@gmail.com>
Link: https://lore.kernel.org/r/20210828195324.68-1-aldas60@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: pi433: fix docs typos and references to previous struct names

In the comments there where some grammar mistakes and references to
struct names that have gotten renamed over time but not updated
in the comments.

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>
Link: https://lore.kernel.org/r/20210828105633.GA8421@localhost.localdomain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove rtw_hal_c2h_handler function

Remove rtw_hal_c2h_handler function from hal/hal_intf.c, as well as its
declaration in include/hal_intf.h, and remove its one remaining caller
within core/rtw_cmd.c.

This function was a wrapper function, then simplified to always return
_FAIL. Since it has no further use, remove it, as part of ongoing
efforts to simplify and remove the HAL layer of the driver.

Acked-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210829234541.946-4-phil@philpotter.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: simplify c2h_evt_hdl function

Simplify c2h_evt_hdl function by removing majority of its code. The
function always returned _FAIL anyway, due to the wrapper function it
calls always returning _FAIL, and its one caller doesn't use the return
value, so this function should just have a return type of void.

Leave the call to c2h_evt_read in place, as without it, event handling
semantics of the driver would be changed, despite nothing actually being
done with the event.

Acked-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210829234541.946-3-phil@philpotter.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: remove c2h_handler field from struct hal_ops

Remove c2h_handler function pointer field from struct hal_ops in
include/hal_intf.h, as it is never set in this driver, and remove
the check for a non-NULL value in the rtw_hal_c2h_handler wrapper
function in hal/hal_intf.c as well. As the function always returns
_FAIL anyway, just modify it to do this unconditionally.

The motivation for removing this field is that it is more code from
the unwanted HAL layer that can be stripped out.

Acked-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210829234541.946-2-phil@philpotter.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: r8188eu: core: remove null check before vfree

Remove NULL check. NULL check before freeing function is not needed.
Correct the indentation.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/YSu9GQa1A3s6FYQx@user
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Linux 5.15-rc1

Merge tag 'perf-tools-for-v5.15-2021-09-11' of git://git./linux/kernel/git/acme/linux

Pull more perf tools updates from Arnaldo Carvalho de Melo:

 - Add missing fields and remove some duplicate fields when printing a
   perf_event_attr.

 - Fix hybrid config terms list corruption.

 - Update kernel header copies, some resulted in new kernel features
   being automagically added to 'perf trace' syscall/tracepoint argument
   id->string translators.

 - Add a file generated during the documentation build to .gitignore.

 - Add an option to build without libbfd, as some distros, like Debian
   consider its ABI unstable.

 - Add support to print a textual representation of IBS raw sample data
   in 'perf report'.

 - Fix bpf 'perf test' sample mismatch reporting

 - Fix passing arguments to stackcollapse report in a 'perf script'
   python script.

 - Allow build-id with trailing zeros.

 - Look for ImageBase in PE file to compute .text offset.

* tag 'perf-tools-for-v5.15-2021-09-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (25 commits)
  tools headers UAPI: Update tools's copy of drm.h headers
  tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
  tools headers UAPI: Sync linux/fs.h with the kernel sources
  tools headers UAPI: Sync linux/in.h copy with the kernel sources
  perf tools: Add an option to build without libbfd
  perf tools: Allow build-id with trailing zeros
  perf tools: Fix hybrid config terms list corruption
  perf tools: Factor out copy_config_terms() and free_config_terms()
  perf tools: Fix perf_event_attr__fprintf() missing/dupl. fields
  perf tools: Ignore Documentation dependency file
  perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versions
  tools include UAPI: Update linux/mount.h copy
  perf beauty: Cover more flags in the  move_mount syscall argument beautifier
  tools headers UAPI: Sync linux/prctl.h with the kernel sources
  tools include UAPI: Sync sound/asound.h copy with the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
  perf report: Add support to print a textual representation of IBS raw sample data
  perf report: Add tools/arch/x86/include/asm/amd-ibs.h
  perf env: Add perf_env__cpuid, perf_env__{nr_}pmu_mappings
  ...

Merge tag 'compiler-attributes-for-linus-v5.15-rc1-v2' of git://github.com/ojeda/linux

Pull compiler attributes updates from Miguel Ojeda:

 - Fix __has_attribute(__no_sanitize_coverage__) for GCC 4 (Marco Elver)

 - Add Nick as Reviewer for compiler_attributes.h (Nick Desaulniers)

 - Move __compiletime_{error|warning} (Nick Desaulniers)

* tag 'compiler-attributes-for-linus-v5.15-rc1-v2' of git://github.com/ojeda/linux:
  compiler_attributes.h: move __compiletime_{error|warning}
  MAINTAINERS: add Nick as Reviewer for compiler_attributes.h
  Compiler Attributes: fix __has_attribute(__no_sanitize_coverage__) for GCC 4

Merge tag 'auxdisplay-for-linus-v5.15-rc1' of git://github.com/ojeda/linux

Pull auxdisplay updates from Miguel Ojeda:
 "An assortment of improvements for auxdisplay:

   - Replace symbolic permissions with octal permissions (Jinchao Wang)

   - ks0108: Switch to use module_parport_driver() (Andy Shevchenko)

   - charlcd: Drop unneeded initializers and switch to C99 style (Andy
     Shevchenko)

   - hd44780: Fix oops on module unloading (Lars Poeschel)

   - Add I2C gpio expander example (Ralf Schlatterbeck)"

* tag 'auxdisplay-for-linus-v5.15-rc1' of git://github.com/ojeda/linux:
  auxdisplay: Replace symbolic permissions with octal permissions
  auxdisplay: ks0108: Switch to use module_parport_driver()
  auxdisplay: charlcd: Drop unneeded initializers and switch to C99 style
  auxdisplay: hd44780: Fix oops on module unloading
  auxdisplay: Add I2C gpio expander example

Merge tag 'smp-urgent-2021-09-12' of git://git./linux/kernel/git/tip/tip

Pull CPU hotplug updates from Thomas Gleixner:
 "Updates for the SMP and CPU hotplug:

   - Remove DEFINE_SMP_CALL_CACHE_FUNCTION() which is a left over of the
     original hotplug code and now causing trouble with the ARM64 cache
     topology setup due to the pointless SMP function call.

     It's not longer required as the hotplug callbacks are guaranteed to
     be invoked on the upcoming CPU.

   - Remove the deprecated and now unused CPU hotplug functions

   - Rewrite the CPU hotplug API documentation"

* tag 'smp-urgent-2021-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation: core-api/cpuhotplug: Rewrite the API section
  cpu/hotplug: Remove deprecated CPU-hotplug functions.
  thermal: Replace deprecated CPU-hotplug functions.
  drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()

Merge tag 'char-misc-5.15-rc1-lkdtm' of git://git./linux/kernel/git/gregkh/char-misc

Pull misc driver fix from Greg KH:
 "Here is a single patch for 5.15-rc1, for the lkdtm misc driver.

  It resolves a build issue that many people were hitting with your
  current tree, and Kees and others felt would be good to get merged
  before -rc1 comes out, to prevent them from having to constantly hit
  it as many development trees restart on -rc1, not older -rc releases.

  It has NOT been in linux-next, but has passed 0-day testing and looks
  'obviously correct' when reviewing it locally :)"

* tag 'char-misc-5.15-rc1-lkdtm' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  lkdtm: Use init_uts_ns.name instead of macros

Merge tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmi

Pull IPMI updates from Corey Minyard:
 "A couple of very minor fixes for style and rate limiting.

  Nothing big, but probably needs to go in"

* tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmi:
  char: ipmi: use DEVICE_ATTR helper macro
  ipmi: rate limit ipmi smi_event failure message

Merge tag 'sched_urgent_for_v5.15_rc1' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Borislav Petkov:

 - Make sure the idle timer expires in hardirq context, on PREEMPT_RT

 - Make sure the run-queue balance callback is invoked only on the
   outgoing CPU

* tag 'sched_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Prevent balance_push() on remote runqueues
  sched/idle: Make the idle timer expire in hard interrupt context

Merge tag 'locking_urgent_for_v5.15_rc1' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Borislav Petkov:

 - Fix the futex PI requeue machinery to not return to userspace in
   inconsistent state

 - Avoid a potential null pointer dereference in the ww_mutex deadlock
   check

 - Other smaller cleanups and optimizations

* tag 'locking_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rtmutex: Fix ww_mutex deadlock check
  futex: Remove unused variable 'vpid' in futex_proxy_trylock_atomic()
  futex: Avoid redundant task lookup
  futex: Clarify comment for requeue_pi_wake_futex()
  futex: Prevent inconsistent state and exit race
  futex: Return error code instead of assigning it without effect
  locking/rwsem: Add missing __init_rwsem() for PREEMPT_RT

Merge tag 'timers_urgent_for_v5.15_rc1' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Borislav Petkov:

 - Handle negative second values properly when converting a timespec64
   to nanoseconds.

* tag 'timers_urgent_for_v5.15_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  time: Handle negative seconds correctly in timespec64_to_ns()

Merge branch 'misc.namei' of git://git./linux/kernel/git/viro/vfs

Pull namei updates from Al Viro:
 "Clearing fallout from mkdirat in io_uring series. The fix in the
  kern_path_locked() patch plus associated cleanups"

* 'misc.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  putname(): IS_ERR_OR_NULL() is wrong here
  namei: Standardize callers of filename_create()
  namei: Standardize callers of filename_lookup()
  rename __filename_parentat() to filename_parentat()
  namei: Fix use after free in kern_path_locked

Merge tag '5.15-rc-cifs-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull smbfs updates from Steve French:
 "cifs/smb3 updates:

   - DFS reconnect fix

   - begin creating common headers for server and client

   - rename the cifs_common directory to smbfs_common to be more
     consistent ie change use of the name cifs to smb (smb3 or smbfs is
     more accurate, as the very old cifs dialect has long been
     superseded by smb3 dialects).

  In the future we can rename the fs/cifs directory to fs/smbfs.

  This does not include the set of multichannel fixes nor the two
  deferred close fixes (they are still being reviewed and tested)"

* tag '5.15-rc-cifs-part2' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: properly invalidate cached root handle when closing it
  cifs: move SMB FSCTL definitions to common code
  cifs: rename cifs_common to smbfs_common
  cifs: update FSCTL definitions

Merge tag 'for_linus' of git://git./linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:

 - vduse driver ("vDPA Device in Userspace") supporting emulated virtio
   block devices

 - virtio-vsock support for end of record with SEQPACKET

 - vdpa: mac and mq support for ifcvf and mlx5

 - vdpa: management netlink for ifcvf

 - virtio-i2c, gpio dt bindings

 - misc fixes and cleanups

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (39 commits)
  Documentation: Add documentation for VDUSE
  vduse: Introduce VDUSE - vDPA Device in Userspace
  vduse: Implement an MMU-based software IOTLB
  vdpa: Support transferring virtual addressing during DMA mapping
  vdpa: factor out vhost_vdpa_pa_map() and vhost_vdpa_pa_unmap()
  vdpa: Add an opaque pointer for vdpa_config_ops.dma_map()
  vhost-iotlb: Add an opaque pointer for vhost IOTLB
  vhost-vdpa: Handle the failure of vdpa_reset()
  vdpa: Add reset callback in vdpa_config_ops
  vdpa: Fix some coding style issues
  file: Export receive_fd() to modules
  eventfd: Export eventfd_wake_count to modules
  iova: Export alloc_iova_fast() and free_iova_fast()
  virtio-blk: remove unneeded "likely" statements
  virtio-balloon: Use virtio_find_vqs() helper
  vdpa: Make use of PFN_PHYS/PFN_UP/PFN_DOWN helper macro
  vsock_test: update message bounds test for MSG_EOR
  af_vsock: rename variables in receive loop
  virtio/vsock: support MSG_EOR bit processing
  vhost/vsock: support MSG_EOR bit processing
  ...

Merge tag 'riscv-for-linus-5.15-mw1' of git://git./linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

 - A pair of defconfig additions, for NVMe and the EFI filesystem
   localization options.

 - A larger address space for stack randomization.

 - A cleanup to our install rules.

 - A DTS update for the Microchip Icicle board, to fix the serial
   console.

 - Support for build-time table sorting, which allows us to have
   __ex_table read-only.

* tag 'riscv-for-linus-5.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Move EXCEPTION_TABLE to RO_DATA segment
  riscv: Enable BUILDTIME_TABLE_SORT
  riscv: dts: microchip: mpfs-icicle: Fix serial console
  riscv: move the (z)install rules to arch/riscv/Makefile
  riscv: Improve stack randomisation on RV64
  riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1
  riscv: defconfig: enable BLK_DEV_NVME

Merge branch 'for-5.15' of git://git./linux/kernel/git/jlawall/linux

Pull coccinelle updates from Julia Lawall:
 "These changes update some existing semantic patches with
  respect to some recent changes in the kernel.

  Specifically, the change to kvmalloc.cocci searches for
  kfree_sensitive rather than kzfree, and the change to
  use_after_iter.cocci adds list_entry_is_head as a valid
  use of a list iterator index variable after the end of
  the loop"

* 'for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
  scripts: coccinelle: allow list_entry_is_head() to use pos
  coccinelle: api: rename kzfree to kfree_sensitive

tools headers UAPI: Update tools's copy of drm.h headers

Picking the changes from:

  17ce9c61c71cbc0d ("drm: document DRM_IOCTL_MODE_RMFB")

Doesn't result in any tooling changes:

  $ tools/perf/trace/beauty/drm_ioctl.sh  > before
  $ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h
  $ tools/perf/trace/beauty/drm_ioctl.sh  > after
  $ diff -u before after

Silencing these perf build warnings:

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

Cc: Simon Ser <contact@emersion.fr>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools headers UAPI: Sync drm/i915_drm.h with the kernel sources

To pick the changes in:

  b65a9489730a2494 ("drm/i915/userptr: Probe existence of backing struct pages upon creation")
  ee242ca704d38699 ("drm/i915/guc: Implement GuC priority management")
  81340cf3bddded4f ("drm/i915/uapi: reject set_domain for discrete")
  7961c5b60f23dff5 ("drm/i915: Add TTM offset argument to mmap.")
  aef7b67a79564f6c ("drm/i915/uapi: convert drm_i915_gem_userptr to kernel doc")
  e7737b67ab46ee0e ("drm/i915/uapi: reject caching ioctls for discrete")
  3aa8c57fe25a9247 ("drm/i915/uapi: convert drm_i915_gem_set_domain to kernel doc")
  289f5a72009b8f67 ("drm/i915/uapi: convert drm_i915_gem_caching to kernel doc")
  4a766ae40ec83301 ("drm/i915: Drop the CONTEXT_CLONE API (v2)")
  6ff6d61dd2a943bd ("drm/i915: Drop I915_CONTEXT_PARAM_NO_ZEROMAP")
  fe4751c3d513ff4f ("drm/i915: Drop I915_CONTEXT_PARAM_RINGSIZE")
  577729533cdc4e37 ("drm/i915: Document the Virtual Engine uAPI")
  c649432e86ca677d ("drm/i915: Fix busy ioctl commentary")

That doesn't result in any changes to tooling as no new ioctl were
added (at least not perceived by tools/perf/trace/beauty/drm_ioctl.sh).

Addressing this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
  diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools headers UAPI: Sync linux/fs.h with the kernel sources

To pick the change in:

  7957d93bf32bc211 ("block: add ioctl to read the disk sequence number")

It adds a new ioctl, but we are still not using that to generate tables
for 'perf trace', so no changes in tooling.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/fs.h' differs from latest version at 'include/uapi/linux/fs.h'
  diff -u tools/include/uapi/linux/fs.h include/uapi/linux/fs.h

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Matteo Croce <mcroce@microsoft.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools headers UAPI: Sync linux/in.h copy with the kernel sources

To pick the changes in:

  db243b796439c0ca ("net/ipv4/ipv6: Replace one-element arraya with flexible-array members")
  2d3e5caf96b9449a ("net/ipv4: Replace one-element array with flexible-array member")

That don't result in any change in tooling, the structs changed remains
with the same layout.

This addresses this build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h'
  diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h

Cc: David S. Miller <davem@davemloft.net>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf tools: Add an option to build without libbfd

Some distributions, like debian, don't link perf with libbfd. Add a
build flag to make this configuration buildable and testable.

This was inspired by:

  https://lore.kernel.org/linux-perf-users/20210910102307.2055484-1-tonyg@leastfixedpoint.com/T/#u

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: tony garnock-jones <tonyg@leastfixedpoint.com>
Link: http://lore.kernel.org/lkml/20210910225756.729087-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf tools: Allow build-id with trailing zeros

Currently perf saves a build-id with size but old versions assumes the
size of 20.  In case the build-id is less than 20 (like for MD5), it'd
fill the rest with 0s.

I saw a problem when old version of perf record saved a binary in the
build-id cache and new version of perf reads the data.  The symbols
should be read from the build-id cache (as the path no longer has the
same binary) but it failed due to mismatch in the build-id.

  symsrc__init: build id mismatch for /home/namhyung/.debug/.build-id/53/e4c2f42a4c61a2d632d92a72afa08f00000000/elf.

The build-id event in the data has 20 byte build-ids, but it saw a
different size (16) when it reads the build-id of the elf file in the
build-id cache.

  $ readelf -n ~/.debug/.build-id/53/e4c2f42a4c61a2d632d92a72afa08f00000000/elf

  Displaying notes found in: .note.gnu.build-id
    Owner                Data size  Description
    GNU                  0x00000010 NT_GNU_BUILD_ID (unique build ID bitstring)
      Build ID: 53e4c2f42a4c61a2d632d92a72afa08f

Let's fix this by allowing trailing zeros if the size is different.

Fixes: 39be8d0115b321ed ("perf tools: Pass build_id object to dso__build_id_equal()")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210910224630.1084877-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf tools: Fix hybrid config terms list corruption

A config terms list was spliced twice, resulting in a never-ending loop
when the list was traversed. Fix by using list_splice_init() and copying
and freeing the lists as necessary.

This patch also depends on patch "perf tools: Factor out
copy_config_terms() and free_config_terms()"

Example on ADL:

 Before:

  # perf record -e '{intel_pt//,cycles/aux-sample-size=4096/pp}' uname &
  # jobs
  [1]+  Running                    perf record -e "{intel_pt//,cycles/aux-sample-size=4096/pp}" uname
  # perf top -E 10
    PerfTop:    4071 irqs/sec  kernel: 6.9%  exact: 100.0% lost: 0/0 drop: 0/0 [4000Hz cycles],  (all, 24 CPUs)
  ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    97.60%  perf           [.] __evsel__get_config_term
     0.25%  [kernel]       [k] kallsyms_expand_symbol.constprop.13
     0.24%  perf           [.] kallsyms__parse
     0.15%  [kernel]       [k] _raw_spin_lock
     0.14%  [kernel]       [k] number
     0.13%  [kernel]       [k] advance_transaction
     0.08%  [kernel]       [k] format_decode
     0.08%  perf           [.] map__process_kallsym_symbol
     0.08%  perf           [.] rb_insert_color
     0.08%  [kernel]       [k] vsnprintf
  exiting.
  # kill %1

After:

  # perf record -e '{intel_pt//,cycles/aux-sample-size=4096/pp}' uname &
  Linux
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.060 MB perf.data ]
  # perf script | head
       perf-exec   604 [001]  1827.312293:                            psb:  psb offs: 0                       ffffffffb8415e87 pt_config_start+0x37 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb856a3bd event_sched_in.isra.133+0xfd ([kernel.kallsyms]) => ffffffffb856a9a0 perf_pmu_nop_void+0x0 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb856b10e merge_sched_in+0x26e ([kernel.kallsyms]) => ffffffffb856a2c0 event_sched_in.isra.133+0x0 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb856a45d event_sched_in.isra.133+0x19d ([kernel.kallsyms]) => ffffffffb8568b80 perf_event_set_state.part.61+0x0 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb8568b86 perf_event_set_state.part.61+0x6 ([kernel.kallsyms]) => ffffffffb85662a0 perf_event_update_time+0x0 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb856a35c event_sched_in.isra.133+0x9c ([kernel.kallsyms]) => ffffffffb8567610 perf_log_itrace_start+0x0 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb856a377 event_sched_in.isra.133+0xb7 ([kernel.kallsyms]) => ffffffffb8403b40 x86_pmu_add+0x0 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb8403b86 x86_pmu_add+0x46 ([kernel.kallsyms]) => ffffffffb8403940 collect_events+0x0 ([kernel.kallsyms])
       perf-exec   604  1827.312293:          1                       branches:  ffffffffb8403a7b collect_events+0x13b ([kernel.kallsyms]) => ffffffffb8402cd0 collect_event+0x0 ([kernel.kallsyms])

Fixes: 30def61f64bac5 ("perf parse-events Create two hybrid cache events")
Fixes: 94da591b1c7913 ("perf parse-events Create two hybrid raw events")
Fixes: 9cbfa2f64c04d9 ("perf parse-events Create two hybrid hardware events")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: https //lore.kernel.org/r/20210909125508.28693-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf tools: Factor out copy_config_terms() and free_config_terms()

Factor out copy_config_terms() and free_config_terms() so that they can
be reused.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: https //lore.kernel.org/r/20210909125508.28693-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf tools: Fix perf_event_attr__fprintf() missing/dupl. fields

Some fields are missing and text_poke is duplicated. Fix that up.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20210911120550.12203-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf tools: Ignore Documentation dependency file

When building directly on the checked out repository the build process
produces a file that should be ignored, so add it to .gitignore.

Fixes: a81df63a5df3e195 ("perf doc: Fix doc.dep")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210910232249.739661-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Merge tag 'io_uring-5.15-2021-09-11' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - Fix an off-by-one in a BUILD_BUG_ON() check. Not a real issue right
   now as we have plenty of flags left, but could become one. (Hao)

 - Fix lockdep issue introduced in this merge window (me)

 - Fix a few issues with the worker creation (me, Pavel, Qiang)

 - Fix regression with wq_has_sleeper() for IOPOLL (Pavel)

 - Timeout link error propagation fix (Pavel)

* tag 'io_uring-5.15-2021-09-11' of git://git.kernel.dk/linux-block:
  io_uring: fix off-by-one in BUILD_BUG_ON check of __REQ_F_LAST_BIT
  io_uring: fail links of cancelled timeouts
  io-wq: fix memory leak in create_io_worker()
  io-wq: fix silly logic error in io_task_work_match()
  io_uring: drop ctx->uring_lock before acquiring sqd->lock
  io_uring: fix missing mb() before waitqueue_active
  io-wq: fix cancellation on create-worker failure

Merge tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe pull request from Christoph:
     - fix nvmet command set reporting for passthrough controllers (Adam Manzanares)
     - update a MAINTAINERS email address (Chaitanya Kulkarni)
     - set QUEUE_FLAG_NOWAIT for nvme-multipth (me)
     - handle errors from add_disk() (Luis Chamberlain)
     - update the keep alive interval when kato is modified (Tatsuya Sasaki)
     - fix a buffer overrun in nvmet_subsys_attr_serial (Hannes Reinecke)
     - do not reset transport on data digest errors in nvme-tcp (Daniel Wagner)
     - only call synchronize_srcu when clearing current path (Daniel Wagner)
     - revalidate paths during rescan (Hannes Reinecke)

 - Split out the fs/block_dev into block/fops.c and block/bdev.c, which
   has been long overdue. Do this now before -rc1, to avoid annoying
   conflicts due to this (Christoph)

 - blk-throtl use-after-free fix (Li)

 - Improve plug depth for multi-device plugs, greatly increasing md
   resync performance (Song)

 - blkdev_show() locking fix (Tetsuo)

 - n64cart error check fix (Yang)

* tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-block:
  n64cart: fix return value check in n64cart_probe()
  blk-mq: allow 4x BLK_MAX_REQUEST_COUNT at blk_plug for multiple_queues
  block: move fs/block_dev.c to block/bdev.c
  block: split out operations on block special files
  blk-throttle: fix UAF by deleteing timer in blk_throtl_exit()
  block: genhd: don't call blkdev_show() with major_names_lock held
  nvme: update MAINTAINERS email address
  nvme: add error handling support for add_disk()
  nvme: only call synchronize_srcu when clearing current path
  nvme: update keep alive interval when kato is modified
  nvme-tcp: Do not reset transport on data digest errors
  nvmet: fixup buffer overrun in nvmet_subsys_attr_serial()
  nvmet: return bool from nvmet_passthru_ctrl and nvmet_is_passthru_req
  nvmet: looks at the passthrough controller when initializing CAP
  nvme: move nvme_multi_css into nvme.h
  nvme-multipath: revalidate paths during rescan
  nvme-multipath: set QUEUE_FLAG_NOWAIT

Merge tag 'libata-5.15-2021-09-11' of git://git.kernel.dk/linux-block

Pull libata maintainer update from Jens Axboe:
 "Damien agreed to take over maintainership of libata, and he would be a
  great candidate for it. Update the MAINTAINERS entry to reflect the
  change in maintainer and git tree"

* tag 'libata-5.15-2021-09-11' of git://git.kernel.dk/linux-block:
  libata: pass over maintainership to Damien Le Moal

Merge tag 'trace-v5.15-3' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Minor fixes to the processing of the bootconfig tree"

* tag 'trace-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  bootconfig: Rename xbc_node_find_child() to xbc_node_find_subkey()
  tracing/boot: Fix to check the histogram control param is a leaf node
  tracing/boot: Fix trace_boot_hist_add_array() to check array is value

Merge tag 'devicetree-fixes-for-5.15-1' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Disable fw_devlinks on x86 DT platforms to fix OLPC

 - More replacing oneOf+const with enum on a few new schemas

 - Drop unnecessary type references on Xilinx SPI binding schema

* tag 'devicetree-fixes-for-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  spi: dt-bindings: xilinx: Drop type reference on *-bits properties
  dt-bindings: More use 'enum' instead of 'oneOf' plus 'const' entries
  of: property: Disable fw_devlink DT support for X86

Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One patch to fix an unused variable warning in a Qualcomm clk driver"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: qcom: gcc-sm6350: Remove unused variable

Merge tag 'rtc-5.15' of git://git./linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "The broken down time conversion is similar to what is done in the time
  subsystem since v5.14. The rest is fairly straightforward.

  Subsystem:
   - Switch to Neri and Schneider time conversion algorithm

  Drivers:
   - rx8025: add rx8035 support
   - s5m: modernize driver and set range"

* tag 'rtc-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: rx8010: select REGMAP_I2C
  dt-bindings: rtc: add Epson RX-8025 and RX-8035
  rtc: rx8025: implement RX-8035 support
  rtc: cmos: remove stale REVISIT comments
  rtc: tps65910: Correct driver module alias
  rtc: move RTC_LIB_KUNIT_TEST to proper location
  rtc: lib_test: add MODULE_LICENSE
  rtc: Improve performance of rtc_time64_to_tm(). Add tests.
  rtc: s5m: set range
  rtc: s5m: enable wakeup only when available
  rtc: s5m: signal the core when alarm are not available
  rtc: s5m: switch to devm_rtc_allocate_device

Merge tag 'firewire-update' of git://git./linux/kernel/git/ieee1394/linux1394

Pull firewire updates from Stefan Richter:

 - Migrate the bus snooper driver 'nosy' from PCI to DMA API

 - Small janitorial cleanup in the IPv4/v6-over-1394 driver

[ The 'nosy' change already come in as a different commit through Greg
  KH in the misc tree back in the previous merge window, so only the
  cleanup ends up being new to 5.15   - Linus ]

* tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: nosy: switch from 'pci_' to 'dma_' API
  firewire: net: remove unused variable 'guid'

Merge tag 'pwm/for-5.15-rc1' of git://git./linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "The changes this time around are mostly janitorial in nature. A lot of
  this is simplifications of drivers using device-managed functions and
  improving compilation coverage.

  The Mediatek display PWM driver now supports the atomic API.

  Cleanups and minor fixes make up the remainder of this set"

* tag 'pwm/for-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (54 commits)
  pwm: mtk-disp: Implement atomic API .get_state()
  pwm: mtk-disp: Fix overflow in period and duty calculation
  pwm: mtk-disp: Implement atomic API .apply()
  pwm: mtk-disp: Adjust the clocks to avoid them mismatch
  dt-bindings: pwm: rockchip: Add description for rk3568
  pwm: Make pwmchip_remove() return void
  pwm: sun4i: Don't check the return code of pwmchip_remove()
  pwm: sifive: Don't check the return code of pwmchip_remove()
  pwm: samsung: Don't check the return code of pwmchip_remove()
  pwm: renesas-tpu: Don't check the return code of pwmchip_remove()
  pwm: rcar: Don't check the return code of pwmchip_remove()
  pwm: pca9685: Don't check the return code of pwmchip_remove()
  pwm: omap-dmtimer: Don't check the return code of pwmchip_remove()
  pwm: mtk-disp: Don't check the return code of pwmchip_remove()
  pwm: imx-tpm: Don't check the return code of pwmchip_remove()
  pwm: img: Don't check the return code of pwmchip_remove()
  pwm: cros-ec: Don't check the return code of pwmchip_remove()
  pwm: brcmstb: Don't check the return code of pwmchip_remove()
  pwm: atmel-tcb: Don't check the return code of pwmchip_remove()
  pwm: atmel-hlcdc: Don't check the return code of pwmchip_remove()
  ...

Merge tag 'thermal-v5.15-rc1' of git://git./linux/kernel/git/thermal/linux

Pull thermal updates from Daniel Lezcano:

 - Add the tegra3 thermal sensor and fix the compilation testing on
   tegra by adding a dependency on ARCH_TEGRA along with COMPILE_TEST
   (Dmitry Osipenko)

 - Fix the error code for the exynos when devm_get_clk() fails (Dan
   Carpenter)

 - Add the TCC cooling support for AlderLake platform (Sumeet Pawnikar)

 - Add support for hardware trip points for the rcar gen3 thermal driver
   and store TSC id as unsigned int (Niklas Söderlund)

 - Replace the deprecated CPU-hotplug functions get_online_cpus() and
   put_online_cpus (Sebastian Andrzej Siewior)

 - Add the thermal tools directory in the MAINTAINERS file (Daniel
   Lezcano)

 - Fix the Makefile and the cross compilation flags for the userspace
   'tmon' tool (Rolf Eike Beer)

 - Allow to use the IMOK independently from the GDDV on Int340x (Sumeet
   Pawnikar)

 - Fix the stub thermal_cooling_device_register() function prototype
   which does not match the real function (Arnd Bergmann)

 - Make the thermal trip point optional in the DT bindings (Maxime
   Ripard)

 - Fix a typo in a comment in the core code (Geert Uytterhoeven)

 - Reduce the verbosity of the trace in the SoC thermal tegra driver
   (Dmitry Osipenko)

 - Add the support for the LMh (Limit Management hardware) driver on the
   QCom platforms (Thara Gopinath)

 - Allow processing of HWP interrupt by adding a weak function in the
   Intel driver (Srinivas Pandruvada)

 - Prevent an abort of the sensor probe is a channel is not used
   (Matthias Kaehlcke)

* tag 'thermal-v5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  thermal/drivers/qcom/spmi-adc-tm5: Don't abort probing if a sensor is not used
  thermal/drivers/intel: Allow processing of HWP interrupt
  dt-bindings: thermal: Add dt binding for QCOM LMh
  thermal/drivers/qcom: Add support for LMh driver
  firmware: qcom_scm: Introduce SCM calls to access LMh
  thermal/drivers/tegra-soctherm: Silence message about clamped temperature
  thermal: Spelling s/scallbacks/callbacks/
  dt-bindings: thermal: Make trips node optional
  thermal/core: Fix thermal_cooling_device_register() prototype
  thermal/drivers/int340x: Use IMOK independently
  tools/thermal/tmon: Add cross compiling support
  thermal/tools/tmon: Improve the Makefile
  MAINTAINERS: Add missing userspace thermal tools to the thermal section
  thermal/drivers/intel_powerclamp: Replace deprecated CPU-hotplug functions.
  thermal/drivers/rcar_gen3_thermal: Store TSC id as unsigned int
  thermal/drivers/rcar_gen3_thermal: Add support for hardware trip points
  drivers/thermal/intel: Add TCC cooling support for AlderLake platform
  thermal/drivers/exynos: Fix an error code in exynos_tmu_probe()
  thermal/drivers/tegra: Correct compile-testing of drivers
  thermal/drivers/tegra: Add driver for Tegra30 thermal sensor

Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:

 - several device tree bindings for input devices have been converted to
   yaml

 - dropped no longer used ixp4xx-beeper and CSR Prima2 PWRC drivers

 - analog joystick has been converted to use ktime API and no longer
   warn about low resolution timers

 - a few driver fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (24 commits)
  Input: analog - always use ktime functions
  Input: mms114 - support MMS134S
  Input: elan_i2c - reduce the resume time for controller in Whitebox
  Input: edt-ft5x06 - added case for EDT EP0110M09
  Input: adc-keys - drop bogus __refdata annotation
  Input: Fix spelling mistake in Kconfig "useable" -> "usable"
  Input: Fix spelling mistake in Kconfig "Modul" -> "Module"
  Input: remove dead CSR Prima2 PWRC driver
  Input: adp5589-keys - use the right header
  Input: adp5588-keys - use the right header
  dt-bindings: input: tsc2005: Convert to YAML schema
  Input: ep93xx_keypad - prepare clock before using it
  dt-bindings: input: sun4i-lradc: Add wakeup-source
  dt-bindings: input: Convert Regulator Haptic binding to a schema
  dt-bindings: input: Convert Pixcir Touchscreen binding to a schema
  dt-bindings: input: Convert ChipOne ICN8318 binding to a schema
  Input: pm8941-pwrkey - fix comma vs semicolon issue
  dt-bindings: power: reset: qcom-pon: Convert qcom PON binding to yaml
  dt-bindings: input: pm8941-pwrkey: Convert pm8941 power key binding to yaml
  dt-bindings: power: reset: Change 'additionalProperties' to true
  ...

riscv: Move EXCEPTION_TABLE to RO_DATA segment

_ex_table section is read-only, so move it to RO_DATA.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

riscv: Enable BUILDTIME_TABLE_SORT

Enable BUILDTIME_TABLE_SORT to sort the exception table at build time
rather than during boot.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

riscv: dts: microchip: mpfs-icicle: Fix serial console

Currently, nothing is output on the serial console, unless
"console=ttyS0,115200n8" or "earlycon" are appended to the kernel
command line.  Enable automatic console selection using
chosen/stdout-path by adding a proper alias, and configure the expected
serial rate.

While at it, add aliases for the other three serial ports, which are
provided on the same micro-USB connector as the first one.

Fixes: 0fa6107eca4186ad ("RISC-V: Initial DTS for Microchip ICICLE board")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

riscv: move the (z)install rules to arch/riscv/Makefile

Currently, the (z)install targets in arch/riscv/Makefile descend into
arch/riscv/boot/Makefile to invoke the shell script, but there is no
good reason to do so.

arch/riscv/Makefile can run the shell script directly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

riscv: Improve stack randomisation on RV64

This enlarges the bits availiable for stack randomisation on RV64 from
the default of 8MiB to 1GiB, to match arm64 and x86.

Also, update the documentation to reflect our support for stack
randomisation.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
[Palmer: commit text]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1

The EFI system partition uses the FAT file system. Many distributions add
an entry in /etc/fstab for the ESP. We must ensure that mounting does not
fail.

The default code page for FAT is 437 (cf. CONFIG_FAT_DEFAULT_CODEPAGE).
The default IO character set is "iso8859-1" (cf. CONFIG_NLS_ISO8859_1).

So let's enable NLS_CODEPAGE_437 and NLS_ISO8859_1 in defconfig.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

riscv: defconfig: enable BLK_DEV_NVME

NVMe is a non-volatile storage media attached via PCIe.
As NVMe has much higher throughput than other block devices like
SATA it is a must have for RISC-V. Enable CONFIG_BLK_DEV_NVME.

The HiFive Unmatched is a board providing M.2 slots for NVMe drives.
Enable CONFIG_PCIE_FU740.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

Documentation: core-api/cpuhotplug: Rewrite the API section

Dave stumbled over the incomplete and confusing documentation of the CPU
hotplug API.

Rewrite it, add the missing function documentations and correct the
existing ones.

Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210909123212.489059409@linutronix.de

cpu/hotplug: Remove deprecated CPU-hotplug functions.

No users in tree use the deprecated CPU-hotplug functions anymore.

Remove them.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-39-bigeasy@linutronix.de

thermal: Replace deprecated CPU-hotplug functions.

The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-20-bigeasy@linutronix.de

Merge branch 'linus' into smp/urgent

Ensure that all usage sites of get/put_online_cpus() except for the
struggler in drivers/thermal are gone. So the last user and the deprecated
inlines can be removed.

perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versions

The btf__get_from_id() function was deprecated in favour of
btf__load_from_kernel_by_id(), but it is still avaiable, so use it to
provide a weak function btf__load_from_kernel_by_id() for older libbpf
when building perf with LIBBPF_DYNAMIC=1, i.e. using the system's libbpf
package.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools include UAPI: Update linux/mount.h copy

To pick the changes from:

  9ffb14ef61bab83f ("move_mount: allow to add a mount into an existing group")

That ends up adding support for the new MOVE_MOUNT_SET_GROUP move_mount
flag.

  $ tools/perf/trace/beauty/move_mount_flags.sh > before
  $ cp include/uapi/linux/mount.h tools/include/uapi/linux/mount.h
  $ tools/perf/trace/beauty/move_mount_flags.sh > after
  $ diff -u before after
  --- before 2021-09-10 12:28:43.865279808 -0300
  +++ after 2021-09-10 12:28:50.183429184 -0300
  @@ -5,4 +5,5 @@
    [ilog2(0x00000010) + 1] = "T_SYMLINKS",
    [ilog2(0x00000020) + 1] = "T_AUTOMOUNTS",
    [ilog2(0x00000040) + 1] = "T_EMPTY_PATH",
  + [ilog2(0x00000100) + 1] = "SET_GROUP",
   };
  $

So now one can use it in --filter expressions for tracepoints.

This silences this perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/mount.h' differs from latest version at 'include/uapi/linux/mount.h'
  diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

perf beauty: Cover more flags in the  move_mount syscall argument beautifier

Previously the regext expected MOVE_MOUNT_[FT]_*, but in the next patch
a flag that doesn't match that expression will be added, MOVE_MOUNT_SET_GROUP

To make this more future proof, take advantage of the fact that the only
one we don't need to cover is MOVE_MOUNT__MASK and use MOVE_MOUNT_[^_]+_*_.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>