scsi: ufs: core: mcq: Fix ufshcd_mcq_sqe_search()
authorBart Van Assche <bvanassche@acm.org>
Wed, 10 Apr 2024 00:07:45 +0000 (17:07 -0700)
committerMartin K. Petersen <martin.petersen@oracle.com>
Thu, 25 Apr 2024 01:01:40 +0000 (21:01 -0400)
commit3c5d0dce8ce0a2781ac306b9ad1492b005ecbab5
tree7bff2514fcd9601139b9f7515c12d3c6e7d4b722
parent0d8b637c9c5eeaa1a4e3dfb336f3ff918eb64fec
scsi: ufs: core: mcq: Fix ufshcd_mcq_sqe_search()

Fix the calculation of the utrd pointer. This patch addresses the following
Coverity complaint:

CID 1538170: (#1 of 1): Extra sizeof expression (SIZEOF_MISMATCH)
suspicious_pointer_arithmetic: Adding sq_head_slot * 32UL /* sizeof (struct
utp_transfer_req_desc) */ to pointer hwq->sqe_base_addr of type struct
utp_transfer_req_desc * is suspicious because adding an integral value to
this pointer automatically scales that value by the size, 32 bytes, of the
pointed-to type, struct utp_transfer_req_desc. Most likely, the
multiplication by sizeof (struct utp_transfer_req_desc) in this expression
is extraneous and should be eliminated.

Cc: Bao D. Nguyen <quic_nguyenb@quicinc.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <quic_cang@quicinc.com>
Fixes: 8d7290348992 ("scsi: ufs: mcq: Add supporting functions for MCQ abort")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240410000751.1047758-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/ufs/core/ufs-mcq.c