From: Tom Yan <tom.ty89@xxxxxxxxx>
1. Removed a repeated bit masking in ata_mselect_control()
2. Moved `wce`/`d_sense` assignment below the page validity checks
3. Added/Removed empty lines where appropriate
Signed-off-by: Tom Yan <tom.ty89@xxxxxxxxx>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 2bdb5da..eb5e8ff 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3618,7 +3618,6 @@ static int ata_mselect_caching(struct ata_queued_cmd *qc,
* The first two bytes of def_cache_mpage are a header, so offsets
* in mpage are off by 2 compared to buf. Same for len.
*/
-
if (len != CACHE_MPAGE_LEN - 2) {
if (len < CACHE_MPAGE_LEN - 2)
*fp = len;
@@ -3627,8 +3626,6 @@ static int ata_mselect_caching(struct ata_queued_cmd *qc,
return -EINVAL;
}
- wce = buf[0] & (1 << 2);
-
/*
* Check that read-only bits are not modified.
*/
@@ -3642,6 +3639,8 @@ static int ata_mselect_caching(struct ata_queued_cmd *qc,
}
}
+ wce = buf[0] & (1 << 2);
+
tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
tf->protocol = ATA_PROT_NODATA;
tf->nsect = 0;
@@ -3674,7 +3673,6 @@ static int ata_mselect_control(struct ata_queued_cmd *qc,
* The first two bytes of def_control_mpage are a header, so offsets
* in mpage are off by 2 compared to buf. Same for len.
*/
-
if (len != CONTROL_MPAGE_LEN - 2) {
if (len < CONTROL_MPAGE_LEN - 2)
*fp = len;
@@ -3683,8 +3681,6 @@ static int ata_mselect_control(struct ata_queued_cmd *qc,
return -EINVAL;
}
- d_sense = buf[0] & (1 << 2);
-
/*
* Check that read-only bits are not modified.
*/
@@ -3697,7 +3693,10 @@ static int ata_mselect_control(struct ata_queued_cmd *qc,
return -EINVAL;
}
}
- if (d_sense & (1 << 2))
+
+ d_sense = buf[0] & (1 << 2);
+
+ if (d_sense)
dev->flags |= ATA_DFLAG_D_SENSE;
else
dev->flags &= ~ATA_DFLAG_D_SENSE;
--
2.9.0
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