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authorAkinobu Mita <akinobu.mita@gmail.com>2011-03-23 19:41:50 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-23 22:46:12 -0400
commita56560b3b233238e85205d4e8d7bded904ac2306 (patch)
tree3965be2ab5fcf6c70fc09604861c14ef554915e8 /include/asm-generic
parentc4945b9ed472e8796e352f10df9dbc2841ba7b61 (diff)
asm-generic: change little-endian bitops to take any pointer types
This makes the little-endian bitops take any pointer types by changing the prototypes and adding casts in the preprocessor macros. That would seem to at least make all the filesystem code happier, and they can continue to do just something like #define ext2_set_bit __test_and_set_bit_le (or whatever the exact sequence ends up being). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Zankel <chris@zankel.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/bitops/le.h77
1 files changed, 53 insertions, 24 deletions
diff --git a/include/asm-generic/bitops/le.h b/include/asm-generic/bitops/le.h
index 394ac3ebcbde..946a21b1b5dc 100644
--- a/include/asm-generic/bitops/le.h
+++ b/include/asm-generic/bitops/le.h
@@ -8,20 +8,31 @@
8 8
9#define BITOP_LE_SWIZZLE 0 9#define BITOP_LE_SWIZZLE 0
10 10
11#define find_next_zero_bit_le(addr, size, offset) \ 11static inline unsigned long find_next_zero_bit_le(const void *addr,
12 find_next_zero_bit(addr, size, offset) 12 unsigned long size, unsigned long offset)
13#define find_next_bit_le(addr, size, offset) \ 13{
14 find_next_bit(addr, size, offset) 14 return find_next_zero_bit(addr, size, offset);
15#define find_first_zero_bit_le(addr, size) \ 15}
16 find_first_zero_bit(addr, size) 16
17static inline unsigned long find_next_bit_le(const void *addr,
18 unsigned long size, unsigned long offset)
19{
20 return find_next_bit(addr, size, offset);
21}
22
23static inline unsigned long find_first_zero_bit_le(const void *addr,
24 unsigned long size)
25{
26 return find_first_zero_bit(addr, size);
27}
17 28
18#elif defined(__BIG_ENDIAN) 29#elif defined(__BIG_ENDIAN)
19 30
20#define BITOP_LE_SWIZZLE ((BITS_PER_LONG-1) & ~0x7) 31#define BITOP_LE_SWIZZLE ((BITS_PER_LONG-1) & ~0x7)
21 32
22extern unsigned long find_next_zero_bit_le(const unsigned long *addr, 33extern unsigned long find_next_zero_bit_le(const void *addr,
23 unsigned long size, unsigned long offset); 34 unsigned long size, unsigned long offset);
24extern unsigned long find_next_bit_le(const unsigned long *addr, 35extern unsigned long find_next_bit_le(const void *addr,
25 unsigned long size, unsigned long offset); 36 unsigned long size, unsigned long offset);
26 37
27#define find_first_zero_bit_le(addr, size) \ 38#define find_first_zero_bit_le(addr, size) \
@@ -31,21 +42,39 @@ extern unsigned long find_next_bit_le(const unsigned long *addr,
31#error "Please fix <asm/byteorder.h>" 42#error "Please fix <asm/byteorder.h>"
32#endif 43#endif
33 44
34#define test_bit_le(nr, addr) \ 45static inline int test_bit_le(int nr, const void *addr)
35 test_bit((nr) ^ BITOP_LE_SWIZZLE, (addr)) 46{
36#define __set_bit_le(nr, addr) \ 47 return test_bit(nr ^ BITOP_LE_SWIZZLE, addr);
37 __set_bit((nr) ^ BITOP_LE_SWIZZLE, (addr)) 48}
38#define __clear_bit_le(nr, addr) \ 49
39 __clear_bit((nr) ^ BITOP_LE_SWIZZLE, (addr)) 50static inline void __set_bit_le(int nr, void *addr)
40 51{
41#define test_and_set_bit_le(nr, addr) \ 52 __set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
42 test_and_set_bit((nr) ^ BITOP_LE_SWIZZLE, (addr)) 53}
43#define test_and_clear_bit_le(nr, addr) \ 54
44 test_and_clear_bit((nr) ^ BITOP_LE_SWIZZLE, (addr)) 55static inline void __clear_bit_le(int nr, void *addr)
45 56{
46#define __test_and_set_bit_le(nr, addr) \ 57 __clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
47 __test_and_set_bit((nr) ^ BITOP_LE_SWIZZLE, (addr)) 58}
48#define __test_and_clear_bit_le(nr, addr) \ 59
49 __test_and_clear_bit((nr) ^ BITOP_LE_SWIZZLE, (addr)) 60static inline int test_and_set_bit_le(int nr, void *addr)
61{
62 return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
63}
64
65static inline int test_and_clear_bit_le(int nr, void *addr)
66{
67 return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
68}
69
70static inline int __test_and_set_bit_le(int nr, void *addr)
71{
72 return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr);
73}
74
75static inline int __test_and_clear_bit_le(int nr, void *addr)
76{
77 return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr);
78}
50 79
51#endif /* _ASM_GENERIC_BITOPS_LE_H_ */ 80#endif /* _ASM_GENERIC_BITOPS_LE_H_ */