diff options
| author | Johan Hovold <johan+linaro@kernel.org> | 2025-06-04 16:34:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 16:30:58 +0200 |
| commit | 54299905bdc69fe5534d19fb46304261e3f61376 (patch) | |
| tree | 99c95886989c4aec086ea846359964a7e50e4fed /drivers/pci/controller/dwc/pcie-qcom-common.c | |
| parent | c2c67e8ffd890152186672bf5b146c3e12d35fd3 (diff) | |
wifi: ath11k: fix dest ring-buffer corruption when ring is full
commit aa6956150f820e6a6deba44be325ddfcb5b10f88 upstream.
Add the missing memory barriers to make sure that destination ring
descriptors are read before updating the tail pointer (and passing
ownership to the device) to avoid memory corruption on weakly ordered
architectures like aarch64 when the ring is full.
Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Cc: stable@vger.kernel.org # 5.6
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://patch.msgid.link/20250604143457.26032-6-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-qcom-common.c')
0 files changed, 0 insertions, 0 deletions