diff mbox series

wifi: ath11k: drop NULL pointer check in ath11k_update_per_peer_tx_stats()

Message ID 20230906093704.14001-1-dmantipov@yandex.ru
State New
Headers show
Series wifi: ath11k: drop NULL pointer check in ath11k_update_per_peer_tx_stats() | expand

Commit Message

Dmitry Antipov Sept. 6, 2023, 9:36 a.m. UTC
Since 'user_stats' is a fixed-size array of 'struct htt_ppdu_user_stats'
in 'struct htt_ppdu_stats', any of its member can't be NULL and so
relevant check may be dropped.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
---
 drivers/net/wireless/ath/ath11k/dp_rx.c | 3 ---
 1 file changed, 3 deletions(-)

Comments

Kalle Valo Sept. 21, 2023, 8:13 a.m. UTC | #1
Dmitry Antipov <dmantipov@yandex.ru> wrote:

> Since 'user_stats' is a fixed-size array of 'struct htt_ppdu_user_stats'
> in 'struct htt_ppdu_stats', any of its member can't be NULL and so
> relevant check may be dropped.
> 
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
> 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.

ac13a7842ab4 wifi: ath11k: drop NULL pointer check in ath11k_update_per_peer_tx_stats()
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 62bc98852f0f..146201d8dba2 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1388,9 +1388,6 @@  ath11k_update_per_peer_tx_stats(struct ath11k *ar,
 	u8 tid = HTT_PPDU_STATS_NON_QOS_TID;
 	bool is_ampdu = false;
 
-	if (!usr_stats)
-		return;
-
 	if (!(usr_stats->tlv_flags & BIT(HTT_PPDU_STATS_TAG_USR_RATE)))
 		return;