[PATCH] bitops: frv: use generic bitops

- remove ffz()
- remove find_{next,first}{,_zero}_bit()
- remove generic_ffs()
- remove __ffs()
- remove generic_fls64()
- remove sched_find_first_bit()
- remove generic_hweight{32,16,8}()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 9 insertions, 161 deletions

diff --git a/include/asm-frv/bitops.h b/include/asm-frv/bitops.h
index 9c5db5c34c1b..6344d06390b9 100644
--- a/include/asm-frv/bitops.h
+++ b/include/asm-frv/bitops.h
@@ -22,20 +22,7 @@
 
 #ifdef __KERNEL__
 
-/*
- * ffz = Find First Zero in word. Undefined if no zero exists,
- * so code should check against ~0UL first..
- */
-static inline unsigned long ffz(unsigned long word)
-{
-        unsigned long result = 0;
-
-        while (word & 1) {
-                result++;
-                word >>= 1;
-        }
-        return result;
-}
+#include <asm-generic/bitops/ffz.h>
 
 /*
  * clear_bit() doesn't provide any barrier for the compiler.
@@ -171,51 +158,9 @@ static inline int __test_bit(int nr, const volatile void * addr)
  __constant_test_bit((nr),(addr)) : \
  __test_bit((nr),(addr)))
 
-extern int find_next_bit(const unsigned long *addr, int size, int offset);
-
-#define find_first_bit(addr, size) find_next_bit(addr, size, 0)
-
-#define find_first_zero_bit(addr, size) \
-        find_next_zero_bit((addr), (size), 0)
-
-static inline int find_next_zero_bit(const void *addr, int size, int offset)
-{
-        const unsigned long *p = ((const unsigned long *) addr) + (offset >> 5);
-        unsigned long result = offset & ~31UL;
-        unsigned long tmp;
-
-        if (offset >= size)
-                return size;
-        size -= result;
-        offset &= 31UL;
-        if (offset) {
-                tmp = *(p++);
-                tmp |= ~0UL >> (32-offset);
-                if (size < 32)
-                        goto found_first;
-                if (~tmp)
-                        goto found_middle;
-                size -= 32;
-                result += 32;
-        }
-        while (size & ~31UL) {
-                if (~(tmp = *(p++)))
-                        goto found_middle;
-                result += 32;
-                size -= 32;
-        }
-        if (!size)
-                return result;
-        tmp = *p;
-
-found_first:
-        tmp |= ~0UL << size;
-found_middle:
-        return result + ffz(tmp);
-}
-
-#define ffs(x) generic_ffs(x)
-#define __ffs(x) (ffs(x) - 1)
+#include <asm-generic/bitops/ffs.h>
+#include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/find.h>
 
 /*
  * fls: find last bit set.
@@ -228,114 +173,17 @@ found_middle:
                                                         \
         bit ? 33 - bit : bit;                           \
 })
-#define fls64(x)   generic_fls64(x)
 
-/*
- * Every architecture must define this function. It's the fastest
- * way of searching a 140-bit bitmap where the first 100 bits are
- * unlikely to be set. It's guaranteed that at least one of the 140
- * bits is cleared.
- */
-static inline int sched_find_first_bit(const unsigned long *b)
-{
-        if (unlikely(b[0]))
-                return __ffs(b[0]);
-        if (unlikely(b[1]))
-                return __ffs(b[1]) + 32;
-        if (unlikely(b[2]))
-                return __ffs(b[2]) + 64;
-        if (b[3])
-                return __ffs(b[3]) + 96;
-        return __ffs(b[4]) + 128;
-}
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/hweight.h>
 
-
-/*
- * hweightN: returns the hamming weight (i.e. the number
- * of bits set) of a N-bit word
- */
-
-#define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
-
-#define ext2_set_bit(nr, addr)          __test_and_set_bit  ((nr) ^ 0x18, (addr))
-#define ext2_clear_bit(nr, addr)        __test_and_clear_bit((nr) ^ 0x18, (addr))
+#include <asm-generic/bitops/ext2-non-atomic.h>
 
 #define ext2_set_bit_atomic(lock,nr,addr)       test_and_set_bit  ((nr) ^ 0x18, (addr))
 #define ext2_clear_bit_atomic(lock,nr,addr)     test_and_clear_bit((nr) ^ 0x18, (addr))
 
-static inline int ext2_test_bit(int nr, const volatile void * addr)
-{
-        const volatile unsigned char *ADDR = (const unsigned char *) addr;
-        int mask;
-
-        ADDR += nr >> 3;
-        mask = 1 << (nr & 0x07);
-        return ((mask & *ADDR) != 0);
-}
-
-#define ext2_find_first_zero_bit(addr, size) \
-        ext2_find_next_zero_bit((addr), (size), 0)
-
-static inline unsigned long ext2_find_next_zero_bit(const void *addr,
-                                                    unsigned long size,
-                                                    unsigned long offset)
-{
-        const unsigned long *p = ((const unsigned long *) addr) + (offset >> 5);
-        unsigned long result = offset & ~31UL;
-        unsigned long tmp;
-
-        if (offset >= size)
-                return size;
-        size -= result;
-        offset &= 31UL;
-        if(offset) {
-                /* We hold the little endian value in tmp, but then the
-                 * shift is illegal. So we could keep a big endian value
-                 * in tmp, like this:
-                 *
-                 * tmp = __swab32(*(p++));
-                 * tmp |= ~0UL >> (32-offset);
-                 *
-                 * but this would decrease preformance, so we change the
-                 * shift:
-                 */
-                tmp = *(p++);
-                tmp |= __swab32(~0UL >> (32-offset));
-                if(size < 32)
-                        goto found_first;
-                if(~tmp)
-                        goto found_middle;
-                size -= 32;
-                result += 32;
-        }
-        while(size & ~31UL) {
-                if(~(tmp = *(p++)))
-                        goto found_middle;
-                result += 32;
-                size -= 32;
-        }
-        if(!size)
-                return result;
-        tmp = *p;
-
-found_first:
-        /* tmp is little endian, so we would have to swab the shift,
-         * see above. But then we have to swab tmp below for ffz, so
-         * we might as well do this here.
-         */
-        return result + ffz(__swab32(tmp) | (~0UL << size));
-found_middle:
-        return result + ffz(__swab32(tmp));
-}
-
-/* Bitmap functions for the minix filesystem.  */
-#define minix_test_and_set_bit(nr,addr)         __test_and_set_bit  ((nr) ^ 0x18, (addr))
-#define minix_set_bit(nr,addr)                  __set_bit((nr) ^ 0x18, (addr))
-#define minix_test_and_clear_bit(nr,addr)       __test_and_clear_bit((nr) ^ 0x18, (addr))
-#define minix_test_bit(nr,addr)                 ext2_test_bit(nr,addr)
-#define minix_find_first_zero_bit(addr,size)    ext2_find_first_zero_bit(addr,size)
+#include <asm-generic/bitops/minix-le.h>
 
 #endif /* __KERNEL__ */