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[2/2] wifi: ath12k: use plain access for descriptor length

Message ID 20250526115137.2490-3-johan+linaro@kernel.org
State New
Headers show
Series wifi: ath12k: fix dest ring-buffer corruption | expand

Commit Message

Johan Hovold May 26, 2025, 11:51 a.m. UTC 
The read memory barrier added by commit 6b67d2cf14ea ("wifi: ath12k: fix
ring-buffer corruption") is enough to guarantee ordering also for plain
descriptor accesses if the length helper is ever inlined so drop the
unnecessary READ_ONCE().

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/net/wireless/ath/ath12k/hal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath12k/hal.c b/drivers/net/wireless/ath/ath12k/hal.c
index 91d5126ca149..962111c66a3e 100644
--- a/drivers/net/wireless/ath/ath12k/hal.c
+++ b/drivers/net/wireless/ath/ath12k/hal.c
@@ -1962,7 +1962,7 @@  u32 ath12k_hal_ce_dst_status_get_length(struct hal_ce_srng_dst_status_desc *desc
 {
 	u32 len;
 
-	len = le32_get_bits(READ_ONCE(desc->flags), HAL_CE_DST_STATUS_DESC_FLAGS_LEN);
+	len = le32_get_bits(desc->flags, HAL_CE_DST_STATUS_DESC_FLAGS_LEN);
 	desc->flags &= ~cpu_to_le32(HAL_CE_DST_STATUS_DESC_FLAGS_LEN);
 
 	return len;