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Subject[PATCH -mm 6/6] kill __clear_bit_string and find_next_zero_string
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This kills unused __clear_bit_string and find_next_zero_string (they
were used by only gart and calgary IOMMUs).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
arch/x86/lib/Makefile_64 | 2 +-
arch/x86/lib/bitstr_64.c | 28 ----------------------------
include/asm-x86/bitops_64.h | 16 ----------------
3 files changed, 1 insertions(+), 45 deletions(-)
delete mode 100644 arch/x86/lib/bitstr_64.c

diff --git a/arch/x86/lib/Makefile_64 b/arch/x86/lib/Makefile_64
index bbabad3..1b72bda 100644
--- a/arch/x86/lib/Makefile_64
+++ b/arch/x86/lib/Makefile_64
@@ -9,5 +9,5 @@ obj-$(CONFIG_SMP) += msr-on-cpu.o

lib-y := csum-partial_64.o csum-copy_64.o csum-wrappers_64.o delay_64.o \
usercopy_64.o getuser_64.o putuser_64.o \
- thunk_64.o clear_page_64.o copy_page_64.o bitstr_64.o bitops_64.o
+ thunk_64.o clear_page_64.o copy_page_64.o bitops_64.o
lib-y += memcpy_64.o memmove_64.o memset_64.o copy_user_64.o rwlock_64.o copy_user_nocache_64.o
diff --git a/arch/x86/lib/bitstr_64.c b/arch/x86/lib/bitstr_64.c
deleted file mode 100644
index 7445caf..0000000
--- a/arch/x86/lib/bitstr_64.c
+++ /dev/null
@@ -1,28 +0,0 @@
-#include <linux/module.h>
-#include <linux/bitops.h>
-
-/* Find string of zero bits in a bitmap */
-unsigned long
-find_next_zero_string(unsigned long *bitmap, long start, long nbits, int len)
-{
- unsigned long n, end, i;
-
- again:
- n = find_next_zero_bit(bitmap, nbits, start);
- if (n == -1)
- return -1;
-
- /* could test bitsliced, but it's hardly worth it */
- end = n+len;
- if (end > nbits)
- return -1;
- for (i = n+1; i < end; i++) {
- if (test_bit(i, bitmap)) {
- start = i+1;
- goto again;
- }
- }
- return n;
-}
-
-EXPORT_SYMBOL(find_next_zero_string);
diff --git a/include/asm-x86/bitops_64.h b/include/asm-x86/bitops_64.h
index 48adbf5..aaf1519 100644
--- a/include/asm-x86/bitops_64.h
+++ b/include/asm-x86/bitops_64.h
@@ -37,12 +37,6 @@ static inline long __scanbit(unsigned long val, unsigned long max)
((off)+(__scanbit(~(((*(unsigned long *)addr)) >> (off)),(size)-(off)))) : \
find_next_zero_bit(addr,size,off)))

-/*
- * Find string of zero bits in a bitmap. -1 when not found.
- */
-extern unsigned long
-find_next_zero_string(unsigned long *bitmap, long start, long nbits, int len);
-
static inline void set_bit_string(unsigned long *bitmap, unsigned long i,
int len)
{
@@ -53,16 +47,6 @@ static inline void set_bit_string(unsigned long *bitmap, unsigned long i,
}
}

-static inline void __clear_bit_string(unsigned long *bitmap, unsigned long i,
- int len)
-{
- unsigned long end = i + len;
- while (i < end) {
- __clear_bit(i, bitmap);
- i++;
- }
-}
-
/**
* ffz - find first zero in word.
* @word: The word to search
--
1.5.3.4


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