From: Heiko Carstens <[email protected]>
[S390] cleanup bitops.h.
Encapsulate complete bitops.h with #ifdef __KERNEL__ and remove the now
superfluous ALIGN_CS define and its users.
This patch is needed for compiling klibc.
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
---
include/asm-s390/bitops.h | 42 +++---------------------------------------
1 files changed, 3 insertions(+), 39 deletions(-)
diff -urpN linux-2.6/include/asm-s390/bitops.h linux-2.6-patched/include/asm-s390/bitops.h
--- linux-2.6/include/asm-s390/bitops.h 2006-06-14 14:29:24.000000000 +0200
+++ linux-2.6-patched/include/asm-s390/bitops.h 2006-06-14 14:29:31.000000000 +0200
@@ -12,6 +12,9 @@
* Copyright (C) 1992, Linus Torvalds
*
*/
+
+#ifdef __KERNEL__
+
#include <linux/config.h>
#include <linux/compiler.h>
@@ -51,19 +54,6 @@
* with operation of the form "set_bit(bitnr, flags)".
*/
-/* set ALIGN_CS to 1 if the SMP safe bit operations should
- * align the address to 4 byte boundary. It seems to work
- * without the alignment.
- */
-#ifdef __KERNEL__
-#define ALIGN_CS 0
-#else
-#define ALIGN_CS 1
-#ifndef CONFIG_SMP
-#error "bitops won't work without CONFIG_SMP"
-#endif
-#endif
-
/* bitmap tables from arch/S390/kernel/bitmap.S */
extern const char _oi_bitmap[];
extern const char _ni_bitmap[];
@@ -122,10 +112,6 @@ static inline void set_bit_cs(unsigned l
unsigned long addr, old, new, mask;
addr = (unsigned long) ptr;
-#if ALIGN_CS == 1
- nr += (addr & __BITOPS_ALIGN) << 3; /* add alignment to bit number */
- addr ^= addr & __BITOPS_ALIGN; /* align address to 8 */
-#endif
/* calculate address for CS */
addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
/* make OR mask */
@@ -142,10 +128,6 @@ static inline void clear_bit_cs(unsigned
unsigned long addr, old, new, mask;
addr = (unsigned long) ptr;
-#if ALIGN_CS == 1
- nr += (addr & __BITOPS_ALIGN) << 3; /* add alignment to bit number */
- addr ^= addr & __BITOPS_ALIGN; /* align address to 8 */
-#endif
/* calculate address for CS */
addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
/* make AND mask */
@@ -162,10 +144,6 @@ static inline void change_bit_cs(unsigne
unsigned long addr, old, new, mask;
addr = (unsigned long) ptr;
-#if ALIGN_CS == 1
- nr += (addr & __BITOPS_ALIGN) << 3; /* add alignment to bit number */
- addr ^= addr & __BITOPS_ALIGN; /* align address to 8 */
-#endif
/* calculate address for CS */
addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
/* make XOR mask */
@@ -183,10 +161,6 @@ test_and_set_bit_cs(unsigned long nr, vo
unsigned long addr, old, new, mask;
addr = (unsigned long) ptr;
-#if ALIGN_CS == 1
- nr += (addr & __BITOPS_ALIGN) << 3; /* add alignment to bit number */
- addr ^= addr & __BITOPS_ALIGN; /* align address to 8 */
-#endif
/* calculate address for CS */
addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
/* make OR/test mask */
@@ -206,10 +180,6 @@ test_and_clear_bit_cs(unsigned long nr,
unsigned long addr, old, new, mask;
addr = (unsigned long) ptr;
-#if ALIGN_CS == 1
- nr += (addr & __BITOPS_ALIGN) << 3; /* add alignment to bit number */
- addr ^= addr & __BITOPS_ALIGN; /* align address to 8 */
-#endif
/* calculate address for CS */
addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
/* make AND/test mask */
@@ -229,10 +199,6 @@ test_and_change_bit_cs(unsigned long nr,
unsigned long addr, old, new, mask;
addr = (unsigned long) ptr;
-#if ALIGN_CS == 1
- nr += (addr & __BITOPS_ALIGN) << 3; /* add alignment to bit number */
- addr ^= addr & __BITOPS_ALIGN; /* align address to 8 */
-#endif
/* calculate address for CS */
addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
/* make XOR/test mask */
@@ -835,8 +801,6 @@ static inline int sched_find_first_bit(u
#include <asm-generic/bitops/hweight.h>
-#ifdef __KERNEL__
-
/*
* ATTENTION: intel byte ordering convention for ext2 and minix !!
* bit 0 is the LSB of addr; bit 31 is the MSB of addr;
-
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