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wifi: ath12k: Allow driver initialization for WoW unsupported devices

Message ID 20240626024257.709460-1-quic_ramess@quicinc.com
State New
Headers show
Series wifi: ath12k: Allow driver initialization for WoW unsupported devices | expand

Commit Message

Rameshkumar Sundaram June 26, 2024, 2:42 a.m. UTC
Currently during driver initialization, mac registration is allowed
only for devices that advertise WMI_TLV_SERVICE_WOW, but QCN9274
doesn't support WoW and hence mac registration is aborted and driver
is de-initialized.

Allow mac registration to proceed without WoW Support for devices
that don't advertise WMI_TLV_SERVICE_WOW.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Cc: stable@vger.kernel.org
Fixes: 4a3c212eee0e ("wifi: ath12k: add basic WoW functionalities")
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/wow.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)


base-commit: dadc1101eabb54ace51aa6fc58c902bf43ac0ed7

Comments

Rameshkumar Sundaram June 27, 2024, 5 a.m. UTC | #1
On 6/27/2024 12:09 AM, Kalle Valo wrote:
> Rameshkumar Sundaram <quic_ramess@quicinc.com> writes:
> 
>> Currently during driver initialization, mac registration is allowed
>> only for devices that advertise WMI_TLV_SERVICE_WOW, but QCN9274
>> doesn't support WoW and hence mac registration is aborted and driver
>> is de-initialized.
> 
> I changed the title and this paragraph to describe more that we are
> fixing a regression here.
> 
>> Allow mac registration to proceed without WoW Support for devices
>> that don't advertise WMI_TLV_SERVICE_WOW.
>>
>> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
>>
>> Cc: stable@vger.kernel.org
>> Fixes: 4a3c212eee0e ("wifi: ath12k: add basic WoW functionalities")
> 
> Luckily commit 4a3c212eee0e is only in ath-next, and not in any other
> tree yet, so no need to cc stable. We need to cc stable when the bug is
> in any of the official releases (v6.10 etc). So I dropped it.
> 
> Please check:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git/commit/?h=pending&id=dbe2f0503e5fa9394e6b4e4f442adae89cec4cc7
> 

Looks fine for me, thanks!
Kalle Valo June 27, 2024, 4:22 p.m. UTC | #2
Rameshkumar Sundaram <quic_ramess@quicinc.com> wrote:

> Commit 4a3c212eee0e ("wifi: ath12k: add basic WoW functionalities") broke
> driver initialization, now mac registration is allowed only for devices that
> advertise WMI_TLV_SERVICE_WOW, but QCN9274 doesn't support WoW and hence mac
> registration is aborted and driver is de-initialized.
> 
> Allow mac registration to proceed without WoW Support for devices
> that don't advertise WMI_TLV_SERVICE_WOW.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> 
> Fixes: 4a3c212eee0e ("wifi: ath12k: add basic WoW functionalities")
> Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

Patch applied to ath-next branch of ath.git, thanks.

9783e0407421 wifi: ath12k: fix driver initialization for WoW unsupported devices
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath12k/wow.c b/drivers/net/wireless/ath/ath12k/wow.c
index 685e8e98d845..c5cba825a84a 100644
--- a/drivers/net/wireless/ath/ath12k/wow.c
+++ b/drivers/net/wireless/ath/ath12k/wow.c
@@ -1001,8 +1001,8 @@  int ath12k_wow_op_resume(struct ieee80211_hw *hw)
 
 int ath12k_wow_init(struct ath12k *ar)
 {
-	if (WARN_ON(!test_bit(WMI_TLV_SERVICE_WOW, ar->wmi->wmi_ab->svc_map)))
-		return -EINVAL;
+	if (!test_bit(WMI_TLV_SERVICE_WOW, ar->wmi->wmi_ab->svc_map))
+		return 0;
 
 	ar->wow.wowlan_support = ath12k_wowlan_support;