This makes the SCSI tracing code slightly easier to read.
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: James E.J. Bottomley <jejb@xxxxxxxxxxxxx>
Cc: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Reported-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Fixes: bf8162354233 ("[SCSI] add scsi trace core functions and put trace points")
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
drivers/scsi/scsi_trace.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/scsi_trace.c b/drivers/scsi/scsi_trace.c
index ac35c301c792..41a950075913 100644
--- a/drivers/scsi/scsi_trace.c
+++ b/drivers/scsi/scsi_trace.c
@@ -18,11 +18,9 @@ static const char *
scsi_trace_rw6(struct trace_seq *p, unsigned char *cdb, int len)
{
const char *ret = trace_seq_buffer_ptr(p);
- u32 lba = 0, txlen;
+ u32 lba, txlen;
- lba |= ((cdb[1] & 0x1F) << 16);
- lba |= (cdb[2] << 8);
- lba |= cdb[3];
+ lba = get_unaligned_be24(&cdb[1]) & 0x1fffff;
/*
* From SBC-2: a TRANSFER LENGTH field set to zero specifies that 256
* logical blocks shall be read (READ(6)) or written (WRITE(6)).
