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wifi: ath11k: use plain access for descriptor length

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The read memory barrier added by commit 6d037a372f ("wifi: ath11k: 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().

Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250604143457.26032-3-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Johan Hovold 2025-06-04 16:34:54 +02:00 committed by Jeff Johnson
parent 8c1ba5091f
commit 3a690e9091
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ath/ath11k/hal.c
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@ -601,7 +601,7 @@ u32 ath11k_hal_ce_dst_status_get_length(void *buf)
struct hal_ce_srng_dst_status_desc *desc = buf;
u32 len;
len = FIELD_GET(HAL_CE_DST_STATUS_DESC_FLAGS_LEN, READ_ONCE(desc->flags));
len = FIELD_GET(HAL_CE_DST_STATUS_DESC_FLAGS_LEN, desc->flags);
desc->flags &= ~HAL_CE_DST_STATUS_DESC_FLAGS_LEN;
return len;