Bitops:Remove generic_funcs

Use asm-generic/bitops/xyz.h instead of using
generic_xyz functions.

Signed-off-by: Nishanth Menon <x0nishan@ti.com>

1 files changed, 7 insertions, 64 deletions

diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 7d41ae62cc..e8ff23b6e0 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -1,70 +1,13 @@
 #ifndef _LINUX_BITOPS_H
 #define _LINUX_BITOPS_H
 
-
-/*
- * ffs: find first bit set. This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
-
-static inline int generic_ffs(int x)
-{
-	int r = 1;
-
-	if (!x)
-		return 0;
-	if (!(x & 0xffff)) {
-		x >>= 16;
-		r += 16;
-	}
-	if (!(x & 0xff)) {
-		x >>= 8;
-		r += 8;
-	}
-	if (!(x & 0xf)) {
-		x >>= 4;
-		r += 4;
-	}
-	if (!(x & 3)) {
-		x >>= 2;
-		r += 2;
-	}
-	if (!(x & 1)) {
-		x >>= 1;
-		r += 1;
-	}
-	return r;
-}
-
-/*
- * hweightN: returns the hamming weight (i.e. the number
- * of bits set) of a N-bit word
- */
-
-static inline unsigned int generic_hweight32(unsigned int w)
-{
-	unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);
-	res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
-	res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);
-	res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);
-	return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);
-}
-
-static inline unsigned int generic_hweight16(unsigned int w)
-{
-	unsigned int res = (w & 0x5555) + ((w >> 1) & 0x5555);
-	res = (res & 0x3333) + ((res >> 2) & 0x3333);
-	res = (res & 0x0F0F) + ((res >> 4) & 0x0F0F);
-	return (res & 0x00FF) + ((res >> 8) & 0x00FF);
-}
-
-static inline unsigned int generic_hweight8(unsigned int w)
-{
-	unsigned int res = (w & 0x55) + ((w >> 1) & 0x55);
-	res = (res & 0x33) + ((res >> 2) & 0x33);
-	return (res & 0x0F) + ((res >> 4) & 0x0F);
-}
+#ifdef __U_BOOT__
+#define BIT(nr)			(1UL << (nr))
+#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
+#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
+#define BITS_PER_BYTE		8
+#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
+#endif
 
 #include <asm/bitops.h>