[PATCH v2 09/10] scsi: ufs: Add a compile-time structure size check
From: Bart Van Assche <bvanassche@acm.org>
Date: 2021-10-20 21:41:25
Subsystem:
scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Before modifying struct ufshcd_sg_entry, add a compile-time structure size check. Signed-off-by: Bart Van Assche <bvanassche@acm.org> --- drivers/scsi/ufs/ufshcd.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 7ea0588247b0..dde4d3f607f2 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c@@ -9791,6 +9791,11 @@ static int __init ufshcd_core_init(void) { int ret; + /* Verify that there are no gaps in struct utp_transfer_cmd_desc. */ + static_assert(sizeof(struct utp_transfer_cmd_desc) == + 2 * ALIGNED_UPIU_SIZE + + SG_ALL * sizeof(struct ufshcd_sg_entry)); + ufs_debugfs_init(); ret = scsi_register_driver(&ufs_dev_wlun_template.gendrv);