[PATCH v3 2/2] staging: keucr: use kernel byteorder functions

Jonathan Neuschäfer
2011-03-03T13:26:15Z

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Jack Stone <jwjstone@fastmail.fm>
---
Changes:
v1 .. v2: correctly replace LittleEndianWORD with le16_to_cpu
v2 .. v3: add an "Signed-off-by:" line
---
drivers/staging/keucr/TODO | 1 -
drivers/staging/keucr/common.h | 12 ------------
drivers/staging/keucr/ms.c | 28 +++++++++++++++-------------
3 files changed, 15 insertions(+), 26 deletions(-)

diff --git a/drivers/staging/keucr/TODO b/drivers/staging/keucr/TODO
index 179b7fe..1c48e40 100644
--- a/drivers/staging/keucr/TODO
+++ b/drivers/staging/keucr/TODO
@@ -6,7 +6,6 @@ TODO:
be merged into the drivers/usb/storage/ directory and
infrastructure instead.
- review by the USB developer community
- - common.h: use kernel swap, le, & be functions
- smcommon.h & smilsub.c: use kernel hweight8(), hweight16()

Please send any patches for this driver to Al Cho <acho@novell.com> and
diff --git a/drivers/staging/keucr/common.h b/drivers/staging/keucr/common.h
index f2be045..b87dc7a 100644
--- a/drivers/staging/keucr/common.h
+++ b/drivers/staging/keucr/common.h
@@ -9,17 +9,5 @@ typedef u16 *PWORD;
typedef u32 DWORD;
typedef u32 *PDWORD;

-#define swapWORD(w) ((((unsigned short)(w) << 8) & 0xff00) | \
- (((unsigned short)(w) >> 8) & 0x00ff))
-#define swapDWORD(dw) ((((unsigned long)(dw) << 24) & 0xff000000) | \
- (((unsigned long)(dw) << 8) & 0x00ff0000) | \
- (((unsigned long)(dw) >> 8) & 0x0000ff00) | \
- (((unsigned long)(dw) >> 24) & 0x000000ff))
-
-#define LittleEndianWORD(w) (w)
-#define LittleEndianDWORD(dw) (dw)
-#define BigEndianWORD(w) swapWORD(w)
-#define BigEndianDWORD(dw) swapDWORD(dw)
-
#endif

diff --git a/drivers/staging/keucr/ms.c b/drivers/staging/keucr/ms.c
index 452ea8f..48496e4 100644
--- a/drivers/staging/keucr/ms.c
+++ b/drivers/staging/keucr/ms.c
@@ -1,4 +1,6 @@
#include <linux/slab.h>
+#include <asm/byteorder.h>
+
#include "usb.h"
#include "scsiglue.h"
#include "transport.h"
@@ -166,8 +168,8 @@ int MS_CardInit(struct us_data *us)
continue;

if (((extdat.mngflg & MS_REG_MNG_SYSFLG) == MS_REG_MNG_SYSFLG_USER) ||
- (BigEndianWORD(((MemStickBootBlockPage0 *)PageBuffer0)->header.wBlockID) != MS_BOOT_BLOCK_ID) ||
- (BigEndianWORD(((MemStickBootBlockPage0 *)PageBuffer0)->header.wFormatVersion) != MS_BOOT_BLOCK_FORMAT_VERSION) ||
+ (be16_to_cpu(((MemStickBootBlockPage0 *)PageBuffer0)->header.wBlockID) != MS_BOOT_BLOCK_ID) ||
+ (be16_to_cpu(((MemStickBootBlockPage0 *)PageBuffer0)->header.wFormatVersion) != MS_BOOT_BLOCK_FORMAT_VERSION) ||
(((MemStickBootBlockPage0 *)PageBuffer0)->header.bNumberOfDataEntry != MS_BOOT_BLOCK_DATA_ENTRIES))
continue;

@@ -266,7 +268,7 @@ int MS_LibCheckDisableBlock(struct us_data *us, WORD PhyBlock)
MS_ReaderReadPage(us, PhyBlock, 1, (DWORD *)PageBuf, &extdat);
do
{
- blk = BigEndianWORD(PageBuf[index]);
+ blk = be16_to_cpu(PageBuf[index]);
if (blk == MS_LB_NOT_USED)
break;
if (blk == us->MS_Lib.Log2PhyMap[0])
@@ -355,7 +357,7 @@ int MS_LibProcessBootBlock(struct us_data *us, WORD PhyBlock, BYTE *PageData)
SysInfo= &(((MemStickBootBlockPage0 *)PageData)->sysinf);

if ((SysInfo->bMsClass != MS_SYSINF_MSCLASS_TYPE_1) ||
- (BigEndianWORD(SysInfo->wPageSize) != MS_SYSINF_PAGE_SIZE) ||
+ (be16_to_cpu(SysInfo->wPageSize) != MS_SYSINF_PAGE_SIZE) ||
((SysInfo->bSecuritySupport & MS_SYSINF_SECURITY) == MS_SYSINF_SECURITY_SUPPORT) ||
(SysInfo->bReserved1 != MS_SYSINF_RESERVED1) ||
(SysInfo->bReserved2 != MS_SYSINF_RESERVED2) ||
@@ -376,12 +378,12 @@ int MS_LibProcessBootBlock(struct us_data *us, WORD PhyBlock, BYTE *PageData)
goto exit;
}

- us->MS_Lib.blockSize = BigEndianWORD(SysInfo->wBlockSize);
- us->MS_Lib.NumberOfPhyBlock = BigEndianWORD(SysInfo->wBlockNumber);
- us->MS_Lib.NumberOfLogBlock = BigEndianWORD(SysInfo->wTotalBlockNumber)- 2;
+ us->MS_Lib.blockSize = be16_to_cpu(SysInfo->wBlockSize);
+ us->MS_Lib.NumberOfPhyBlock = be16_to_cpu(SysInfo->wBlockNumber);
+ us->MS_Lib.NumberOfLogBlock = be16_to_cpu(SysInfo->wTotalBlockNumber) - 2;
us->MS_Lib.PagesPerBlock = us->MS_Lib.blockSize * SIZE_OF_KIRO / MS_BYTES_PER_PAGE;
us->MS_Lib.NumberOfSegment = us->MS_Lib.NumberOfPhyBlock / MS_PHYSICAL_BLOCKS_PER_SEGMENT;
- us->MS_Model = BigEndianWORD(SysInfo->wMemorySize);
+ us->MS_Model = be16_to_cpu(SysInfo->wMemorySize);

if (MS_LibAllocLogicalMap(us)) //Allocate to all number of logicalblock and physicalblock
goto exit;
@@ -394,10 +396,10 @@ int MS_LibProcessBootBlock(struct us_data *us, WORD PhyBlock, BYTE *PageData)
{
DWORD EntryOffset, EntrySize;

- if ((EntryOffset = BigEndianDWORD(SysEntry->entry[i].dwStart)) == 0xffffff)
+ if ((EntryOffset = be32_to_cpu(SysEntry->entry[i].dwStart)) == 0xffffff)
continue;

- if ((EntrySize = BigEndianDWORD(SysEntry->entry[i].dwSize)) == 0)
+ if ((EntrySize = be32_to_cpu(SysEntry->entry[i].dwSize)) == 0)
continue;

if (EntryOffset + MS_BYTES_PER_PAGE + EntrySize > us->MS_Lib.blockSize * (DWORD)SIZE_OF_KIRO)
@@ -429,7 +431,7 @@ int MS_LibProcessBootBlock(struct us_data *us, WORD PhyBlock, BYTE *PageData)
PrevPageNumber = PageNumber;
}

- if ((phyblk = BigEndianWORD(*(WORD *)(PageBuffer + (EntryOffset % MS_BYTES_PER_PAGE)))) < 0x0fff)
+ if ((phyblk = be16_to_cpu(*(WORD *)(PageBuffer + (EntryOffset % MS_BYTES_PER_PAGE)))) < 0x0fff)
MS_LibSetInitialErrorBlock(us, phyblk);

EntryOffset += 2;
@@ -455,10 +457,10 @@ int MS_LibProcessBootBlock(struct us_data *us, WORD PhyBlock, BYTE *PageData)
}

idi = &((MemStickBootBlockCIS_IDI *)(PageBuffer + (EntryOffset % MS_BYTES_PER_PAGE)))->idi.idi;
- if (LittleEndianWORD(idi->wIDIgeneralConfiguration) != MS_IDI_GENERAL_CONF)
+ if (le16_to_cpu(idi->wIDIgeneralConfiguration) != MS_IDI_GENERAL_CONF)
goto exit;

- us->MS_Lib.BytesPerSector = LittleEndianWORD(idi->wIDIbytesPerSector);
+ us->MS_Lib.BytesPerSector = le16_to_cpu(idi->wIDIbytesPerSector);
if (us->MS_Lib.BytesPerSector != MS_BYTES_PER_PAGE)
goto exit;
}
--
1.7.4.1