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authorIngo Molnar <mingo@elte.hu>2009-05-12 12:17:30 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-12 12:17:36 +0200
commit6cda3eb62ef42aa5acd649bf99c8db544e0f4051 (patch)
tree93f74ca002f5756c8e157611174f9540b5cf41c0 /drivers/scsi/sd.c
parentb9c61b70075c87a8612624736faf4a2de5b1ed30 (diff)
parentcec6be6d1069d697beb490bbb40a290d5ff554a2 (diff)
Merge branch 'x86/apic' into irq/numa
Merge reason: both topics modify the APIC code but were able to do it in parallel so far. An upcoming patch generates a conflict so merge them to avoid the conflict. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3fcb64b91c4..84044233b63 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -50,6 +50,7 @@
#include <linux/string_helpers.h>
#include <linux/async.h>
#include <asm/uaccess.h>
+#include <asm/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -1344,12 +1345,8 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
return -EINVAL;
}
- sector_size = (buffer[8] << 24) | (buffer[9] << 16) |
- (buffer[10] << 8) | buffer[11];
- lba = (((u64)buffer[0] << 56) | ((u64)buffer[1] << 48) |
- ((u64)buffer[2] << 40) | ((u64)buffer[3] << 32) |
- ((u64)buffer[4] << 24) | ((u64)buffer[5] << 16) |
- ((u64)buffer[6] << 8) | (u64)buffer[7]);
+ sector_size = get_unaligned_be32(&buffer[8]);
+ lba = get_unaligned_be64(&buffer[0]);
sd_read_protection_type(sdkp, buffer);
@@ -1400,10 +1397,8 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
return -EINVAL;
}
- sector_size = (buffer[4] << 24) | (buffer[5] << 16) |
- (buffer[6] << 8) | buffer[7];
- lba = (buffer[0] << 24) | (buffer[1] << 16) |
- (buffer[2] << 8) | buffer[3];
+ sector_size = get_unaligned_be32(&buffer[4]);
+ lba = get_unaligned_be32(&buffer[0]);
if ((sizeof(sdkp->capacity) == 4) && (lba == 0xffffffff)) {
sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "