mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-12-27 12:21:22 -05:00
Code Issues Packages Projects Releases Wiki Activity

Bluetooth: btintel_pcie: Reduce driver buffer posting to prevent race condition

Browse Source 
Modify the driver to post 3 fewer buffers than the maximum rx buffers
(64) allowed for the firmware. This change mitigates a hardware issue
causing a race condition in the firmware, improving stability and data
handling.

Signed-off-by: Chandrashekar Devegowda <chandrashekar.devegowda@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
Fixes: c2b636b3f7 ("Bluetooth: btintel_pcie: Add support for PCIe transport")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Chandrashekar Devegowda
2025-06-03 15:34:40 +05:30
committed by Luiz Augusto von Dentz
parent 2dd711102c
commit bf2ffc4d14
1 changed files with 5 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/bluetooth/btintel_pcie.c
View File

@@ -398,7 +398,11 @@ static int btintel_pcie_start_rx(struct btintel_pcie_data *data)
int i, ret;
struct rxq *rxq = &data->rxq;
for (i = 0; i < rxq->count; i++) {
/* Post (BTINTEL_PCIE_RX_DESCS_COUNT - 3) buffers to overcome the
* hardware issues leading to race condition at the firmware.
*/
for (i = 0; i < rxq->count - 3; i++) {
ret = btintel_pcie_submit_rx(data);
if (ret)
return ret;