ahci.c: In function 'ata_scsiop_read_capacity10':
ahci.c:616: warning: dereferencing type-punned pointer will break
strict-aliasing rules
Signed-off-by: Kumar Gala <ga...@kernel.crashing.org>
---
drivers/block/ahci.c | 14 ++++++--------
1 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index e1b66fd..b0d1792 100644
--- a/drivers/block/ahci.c
+++ b/drivers/block/ahci.c
@@ -602,7 +602,7 @@ static int ata_scsiop_read10(ccb * pccb)
*/
static int ata_scsiop_read_capacity10(ccb *pccb)
{
- u8 buf[8];
+ u32 cap;
if (!ataid[pccb->target]) {
printf("scsi_ahci: SCSI READ CAPACITY10 command failure. "
@@ -611,14 +611,12 @@ static int ata_scsiop_read_capacity10(ccb *pccb)
return -EPERM;
}
- memset(buf, 0, 8);
+ cap = le32_to_cpu(ataid[pccb->target]->lba_capacity);
+ memcpy(pccb->pdata, &cap, sizeof(cap));
- *(u32 *) buf = le32_to_cpu(ataid[pccb->target]->lba_capacity);
-
- buf[6] = 512 >> 8;
- buf[7] = 512 & 0xff;
-
- memcpy(pccb->pdata, buf, 8);
+ pccb->pdata[4] = pccb->pdata[5] = 0;
+ pccb->pdata[6] = 512 >> 8;
+ pccb->pdata[7] = 512 & 0xff;
return 0;
}
--
1.6.0.6
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