The patch titled
ata: replace byteshifting with unaligned endian helpers
has been removed from the -mm tree. Its filename was
ata-replace-byteshifting-with-unaligned-endian-helpers.patch
This patch was dropped because an updated version will be merged
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ata: replace byteshifting with unaligned endian helpers
From: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Signed-off-by: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/libata-scsi.c | 50 +++++-------------------------------
1 file changed, 7 insertions(+), 43 deletions(-)
diff -puN drivers/ata/libata-scsi.c~ata-replace-byteshifting-with-unaligned-endian-helpers drivers/ata/libata-scsi.c
--- a/drivers/ata/libata-scsi.c~ata-replace-byteshifting-with-unaligned-endian-helpers
+++ a/drivers/ata/libata-scsi.c
@@ -46,6 +46,7 @@
#include <linux/libata.h>
#include <linux/hdreg.h>
#include <linux/uaccess.h>
+#include <asm/unaligned.h>
#include "libata.h"
@@ -1384,19 +1385,10 @@ static unsigned int ata_scsi_flush_xlat(
*/
static void scsi_6_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
{
- u64 lba = 0;
- u32 len;
-
VPRINTK("six-byte command\n");
- lba |= ((u64)(cdb[1] & 0x1f)) << 16;
- lba |= ((u64)cdb[2]) << 8;
- lba |= ((u64)cdb[3]);
-
- len = cdb[4];
-
- *plba = lba;
- *plen = len;
+ *plba = load_be32_noalign((__be32 *)&cdb[0]) & 0x1fffff;
+ *plen = cdb[4];
}
/**
@@ -1411,21 +1403,10 @@ static void scsi_6_lba_len(const u8 *cdb
*/
static void scsi_10_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
{
- u64 lba = 0;
- u32 len = 0;
-
VPRINTK("ten-byte command\n");
- lba |= ((u64)cdb[2]) << 24;
- lba |= ((u64)cdb[3]) << 16;
- lba |= ((u64)cdb[4]) << 8;
- lba |= ((u64)cdb[5]);
-
- len |= ((u32)cdb[7]) << 8;
- len |= ((u32)cdb[8]);
-
- *plba = lba;
- *plen = len;
+ *plba = load_be32_noalign((__be32 *)&cdb[2]);
+ *plen = load_be16_noalign((__be16 *)&cdb[7]);
}
/**
@@ -1440,27 +1421,10 @@ static void scsi_10_lba_len(const u8 *cd
*/
static void scsi_16_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
{
- u64 lba = 0;
- u32 len = 0;
-
VPRINTK("sixteen-byte command\n");
- lba |= ((u64)cdb[2]) << 56;
- lba |= ((u64)cdb[3]) << 48;
- lba |= ((u64)cdb[4]) << 40;
- lba |= ((u64)cdb[5]) << 32;
- lba |= ((u64)cdb[6]) << 24;
- lba |= ((u64)cdb[7]) << 16;
- lba |= ((u64)cdb[8]) << 8;
- lba |= ((u64)cdb[9]);
-
- len |= ((u32)cdb[10]) << 24;
- len |= ((u32)cdb[11]) << 16;
- len |= ((u32)cdb[12]) << 8;
- len |= ((u32)cdb[13]);
-
- *plba = lba;
- *plen = len;
+ *plba = load_be64_noalign((__be64 *)&cdb[2]);
+ *plen = load_be32_noalign((__be32 *)&cdb[10]);
}
/**
_
Patches currently in -mm which might be from harvey.harrison@xxxxxxxxx are
origin.patch
memstick-annotate-endianness-of-attribute-structs.patch
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