Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / drivers / scsi / sd.c

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3fcb64b..8404423 100644 (file)
--- 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 "