On 2/15/23 04:37, Po-Wen Kao wrote:
Transfer command descriptor is allocated in ufshcd_memory_alloc()
and referenced by transfer request descriptor with stride size
sizeof_utp_transfer_cmd_desc()
instead of
sizeof(struct utp_transfer_cmd_desc).
Consequently, computing tag by address offset should also refer to the
same stride.
Signed-off-by: Po-Wen Kao <powen.kao@xxxxxxxxxxxx>
---
drivers/ufs/core/ufs-mcq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c
index 31df052fbc41..3a27fa4b0024 100644
--- a/drivers/ufs/core/ufs-mcq.c
+++ b/drivers/ufs/core/ufs-mcq.c
@@ -265,7 +265,7 @@ static int ufshcd_mcq_get_tag(struct ufs_hba *hba,
addr = (le64_to_cpu(cqe->command_desc_base_addr) & CQE_UCD_BA) -
hba->ucdl_dma_addr;
- return div_u64(addr, sizeof(struct utp_transfer_cmd_desc));
+ return div_u64(addr, sizeof_utp_transfer_cmd_desc(hba));
}
static void ufshcd_mcq_process_cqe(struct ufs_hba *hba,
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
