This is a note to let you know that I've just added the patch titled
wifi: ath11k: fix WCN6750 firmware crash caused by 17 num_vdevs
to the 6.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-ath11k-fix-wcn6750-firmware-crash-caused-by-17-.patch
and it can be found in the queue-6.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5c1f9432c8f793e0bd7d247d0932bf76e684033f
Author: Carl Huang <quic_cjhuang@xxxxxxxxxxx>
Date: Tue May 21 11:08:10 2024 +0300
wifi: ath11k: fix WCN6750 firmware crash caused by 17 num_vdevs
[ Upstream commit ed281c6ab6eb8a914f06c74dfeaebde15b34a3f4 ]
WCN6750 firmware crashes because of num_vdevs changed from 4 to 17
in ath11k_init_wmi_config_qca6390() as the ab->hw_params.num_vdevs
is 17. This is caused by commit f019f4dff2e4 ("wifi: ath11k: support
2 station interfaces") which assigns ab->hw_params.num_vdevs directly
to config->num_vdevs in ath11k_init_wmi_config_qca6390(), therefore
WCN6750 firmware crashes as it can't support such a big num_vdevs.
Fix it by assign 3 to num_vdevs in hw_params for WCN6750 as 3 is
sufficient too.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-01371-QCAMSLSWPLZ-1
Fixes: f019f4dff2e4 ("wifi: ath11k: support 2 station interfaces")
Reported-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
Tested-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
Closes: https://lore.kernel.org/r/D15TIIDIIESY.D1EKKJLZINMA@xxxxxxxxxxxxx/
Signed-off-by: Carl Huang <quic_cjhuang@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>
Link: https://msgid.link/20240520030757.2209395-1-quic_cjhuang@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index c78bce19bd754..5d07585e59c17 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -595,7 +595,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
.coldboot_cal_ftm = true,
.cbcal_restart_fw = false,
.fw_mem_mode = 0,
- .num_vdevs = 16 + 1,
+ .num_vdevs = 3,
.num_peers = 512,
.supports_suspend = false,
.hal_desc_sz = sizeof(struct hal_rx_desc_qcn9074),
