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authorAkinobu Mita <akinobu.mita@gmail.com>2012-11-03 22:03:45 -0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-14 21:01:10 -0500
commit79597be99ac96b1409eb7ae41c336696d7c4f4d9 (patch)
tree5d4568262e08e2caf065e4ed4e5e7e9f708a6730 /arch/powerpc
parent2237f4f40af9ab57d5427b35d1514d3e65d31d1a (diff)
powerpc: Use asm-generic/bitops/le.h
The only difference between powerpc and asm-generic le-bitops is test_bit_le(). Usually all bitops require a long aligned bitmap. But powerpc test_bit_le() can take an unaligned address. There is no special callsite of test_bit_le() that needs unaligned access in powerpc as far as I can see. So convert to use asm-generic/bitops/le.h for powerpc. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/bitops.h55
1 files changed, 1 insertions, 54 deletions
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 920596f3b2af..ef918a2328bb 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -278,61 +278,8 @@ unsigned long __arch_hweight64(__u64 w);
278#include <asm-generic/bitops/find.h> 278#include <asm-generic/bitops/find.h>
279 279
280/* Little-endian versions */ 280/* Little-endian versions */
281#include <asm-generic/bitops/le.h>
281 282
282static __inline__ int test_bit_le(unsigned long nr,
283 __const__ void *addr)
284{
285 __const__ unsigned char *tmp = (__const__ unsigned char *) addr;
286 return (tmp[nr >> 3] >> (nr & 7)) & 1;
287}
288
289static inline void set_bit_le(int nr, void *addr)
290{
291 set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
292}
293
294static inline void clear_bit_le(int nr, void *addr)
295{
296 clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
297}
298
299static inline void __set_bit_le(int nr, void *addr)
300{
301 __set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
302}
303
304static inline void __clear_bit_le(int nr, void *addr)
305{
306 __clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
307}
308
309static inline int test_and_set_bit_le(int nr, void *addr)
310{
311 return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
312}
313
314static inline int test_and_clear_bit_le(int nr, void *addr)
315{
316 return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
317}
318
319static inline int __test_and_set_bit_le(int nr, void *addr)
320{
321 return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
322}
323
324static inline int __test_and_clear_bit_le(int nr, void *addr)
325{
326 return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
327}
328
329#define find_first_zero_bit_le(addr, size) \
330 find_next_zero_bit_le((addr), (size), 0)
331unsigned long find_next_zero_bit_le(const void *addr,
332 unsigned long size, unsigned long offset);
333
334unsigned long find_next_bit_le(const void *addr,
335 unsigned long size, unsigned long offset);
336/* Bitmap functions for the ext2 filesystem */ 283/* Bitmap functions for the ext2 filesystem */
337 284
338#include <asm-generic/bitops/ext2-atomic-setbit.h> 285#include <asm-generic/bitops/ext2-atomic-setbit.h>