linux-stable.git/drivers/net/wireless, branch v5.13.2

mwifiex: re-fix for unaligned accesses

2021-07-14T15:07:26+00:00

[ Upstream commit 8f4e3d48bb50765ab27ae5bebed2595b20de80a1 ]

A patch from 2017 changed some accesses to DMA memory to use
get_unaligned_le32() and similar interfaces, to avoid problems
with doing unaligned accesson uncached memory.

However, the change in the mwifiex_pcie_alloc_sleep_cookie_buf()
function ended up changing the size of the access instead,
as it operates on a pointer to u8.

Change this function back to actually access the entire 32 bits.
Note that the pointer is aligned by definition because it came
from dma_alloc_coherent().

Fixes: 92c70a958b0b ("mwifiex: fix for unaligned reads")
Acked-by: Kalle Valo 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Sasha Levin

rtw88: 8822c: fix lc calibration timing

2021-07-14T15:07:14+00:00

[ Upstream commit 05684fd583e1acc34dddea283838fbfbed4904a0 ]

Before this patch, we use value from 2 seconds ago to decide
whether we should do lc calibration.
Although this don't happen frequently, fix flow to the way it should be.

Fixes: 7ae7784ec2a8 ("rtw88: 8822c: add LC calibration for RTL8822C")
Signed-off-by: Po-Hao Huang 
Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20210426013252.5665-3-pkshih@realtek.com
Signed-off-by: Sasha Levin

iwlwifi: increase PNVM load timeout

2021-07-14T15:07:14+00:00

[ Upstream commit 5cc816ef9db1fe03f73e56e9d8f118add9c6efe4 ]

The FW has a watchdog of 200ms in the PNVM load flow, so the driver
should have a slightly higher timeout.  Change the timeout from 100ms
to 250ms.

Signed-off-by: Luca Coelho 
Fixes: 70d3ca86b025 ("iwlwifi: mvm: ring the doorbell and wait for PNVM load completion")
Signed-off-by: Luca Coelho 
Link: https://lore.kernel.org/r/iwlwifi.20210612142637.ba22aec1e2be.I36bfadc28c480f4fc57266c075a79e8ea4a6934f@changeid
Signed-off-by: Luca Coelho 
Signed-off-by: Sasha Levin

mt76: mt7921: fix the coredump is being truncated

2021-07-14T15:07:11+00:00

[ Upstream commit 723885a6750102e5d807429b3d06aa6b0d29cc66 ]

Fix the maximum size of the coredump generated with current mt7921
firmware. Otherwise, a truncated coredump would be reported to userland
via dev_coredumpv.

Also, there is an additional error handling enhanced in the patch to avoid
the possible invalid buffer access when the system failed to create the
buffer to hold the coredump.

Fixes: 0da3c795d07b ("mt76: mt7921: add coredump support")
Co-developed-by: YN Chen 
Signed-off-by: YN Chen 
Signed-off-by: Sean Wang 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

mt76: mt7921: fix kernel warning when reset on vif is not sta

2021-07-14T15:07:11+00:00

[ Upstream commit 78b0328ff8c46fce64eb969d2572c3f631735dc1 ]

ieee80211_disconnect is only called for the staton mode.

[  714.050429] WARNING: CPU: 1 PID: 382 at net/mac80211/mlme.c:2787
ieee80211_disconnect+0x108/0x118 [mac80211]
[  714.116704] Hardware name: MediaTek Asurada rev1 board (DT)
[  714.122303] Workqueue: mt76 mt7921_mac_reset_work [mt7921e]
[  714.127877] pstate: 20c00009 (nzCv daif +PAN +UAO)
[  714.132761] pc : ieee80211_disconnect+0x108/0x118 [mac80211]
[  714.138430] lr : mt7921_vif_connect_iter+0x28/0x54 [mt7921e]
[  714.144083] sp : ffffffc0107cbbd0
[  714.147394] x29: ffffffc0107cbbd0 x28: ffffffb26c9cb928
[  714.152706] x27: ffffffb26c9cbd98 x26: 0000000000000000
[  714.158017] x25: 0000000000000003 x24: ffffffb26c9c9c38
[  714.163328] x23: ffffffb26c9c9c38 x22: ffffffb26c9c8860
[  714.168639] x21: ffffffb23b940000 x20: ffffffb26c9c8860
[  714.173950] x19: 0000000000000001 x18: 000000000000b67e
[  714.179261] x17: 00000000064dd409 x16: ffffffd739cb28f0
[  714.184571] x15: 0000000000000000 x14: 0000000000000227
[  714.189881] x13: 0000000000000400 x12: ffffffd73a4eb060
[  714.195191] x11: 0000000000000000 x10: 0000000000000000
[  714.200502] x9 : ffffffd703a0a000 x8 : 0000000000000006
[  714.205812] x7 : 2828282828282828 x6 : ffffffb200440396
[  714.211122] x5 : 0000000000000000 x4 : 0000000000000004
[  714.216432] x3 : 0000000000000000 x2 : ffffffb23b940c90
[  714.221743] x1 : 0000000000000001 x0 : ffffffb23b940c90
[  714.227054] Call trace:
[  714.229594]  ieee80211_disconnect+0x108/0x118 [mac80211]
[  714.234913]  mt7921_vif_connect_iter+0x28/0x54 [mt7921e]
[  714.240313]  __iterate_interfaces+0xc4/0xdc [mac80211]
[  714.245541]  ieee80211_iterate_interfaces+0x4c/0x68 [mac80211]
[  714.251381]  mt7921_mac_reset_work+0x410/0x468 [mt7921e]
[  714.256696]  process_one_work+0x208/0x3c8
[  714.260706]  worker_thread+0x23c/0x3e8
[  714.264456]  kthread+0x140/0x17c
[  714.267685]  ret_from_fork+0x10/0x18

Fixes: 0c1ce9884607 ("mt76: mt7921: add wifi reset support")
Signed-off-by: Sean Wang 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

mt76: mt7915: fix rx fcs error count in testmode

2021-07-14T15:07:11+00:00

[ Upstream commit 89043529c8b833d87391f1844e9d1cc1643393eb ]

FCS error packets are filtered by default and won't be reported to
driver, so that RX fcs error and PER in testmode always show zero.
Fix this issue by reading fcs error count from hw counter.

We did't fix this issue by disabling fcs error rx filter since it may
let HW suffer some SER errors.

Fixes: 5d8a83f09941 ("mt76: mt7915: implement testmode rx support")
Signed-off-by: Shayne Chen 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

mt76: mt7921: wake the device before dumping power table

2021-07-14T15:07:10+00:00

[ Upstream commit 271fa685365842962f56651c9d1a33a0d0d3b30b ]

Always wake the device up before dumping the single_sku power table
otherwise the device can hang.

Fixes: ea29acc97c555 ("mt76: mt7921: add dumping Tx power table")
Signed-off-by: Lorenzo Bianconi 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

mt76: mt7915: fix MT_EE_CAL_GROUP_SIZE

2021-07-14T15:07:10+00:00

[ Upstream commit ee8ba94f9cc9afab570fd71ad421292f6360983c ]

Fix wrong offset for pre-calibration data.

Fixes: 495184ac91bb ("mt76: mt7915: add support for applying pre-calibration data")
Signed-off-by: Ryder Lee 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

mt76: mt7615: fix potential overflow on large shift

2021-07-14T15:07:10+00:00

[ Upstream commit 3253f8fddd954aba9ac88ce3c34551dcca505b21 ]

Fix the following static checker warning:
error: undefined (user controlled) shift '(((1))) << (c->omac_idx)'

Fixes: 402a695b1ae6 ("mt76: mt7615: fix CSA notification for DBDC")
Reported-by: Dan Carpenter 
Signed-off-by: Ryder Lee 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

mt76: testmode: remove undefined behaviour in mt76_testmode_alloc_skb

2021-07-14T15:07:10+00:00

[ Upstream commit 223cea6d3c974acd393bfac2d168b2945a6cf1e5 ]

Get rid of an undefined behaviour in mt76_testmode_alloc_skb routine
allocating skb frames

Fixes: 2601dda8faa76 ("mt76: testmode: add support to send larger packet")
Signed-off-by: Lorenzo Bianconi 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin