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iommu sg: 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>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
FUJITA Tomonori 2008-02-04 22:28:12 -08:00 committed by Linus Torvalds
parent fde9a1094d
commit 67ec11cf96
3 changed files with 1 additions and 45 deletions
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2
arch/x86/lib/Makefile
View File

@ -21,7 +21,7 @@ else
lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o
lib-y += thunk_64.o clear_page_64.o copy_page_64.o
lib-y += bitstr_64.o bitops_64.o
lib-y += bitops_64.o
lib-y += memmove_64.o memset_64.o
lib-y += copy_user_64.o rwlock_64.o copy_user_nocache_64.o
endif

28
arch/x86/lib/bitstr_64.c
View File

@ -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);

16
include/asm-x86/bitops_64.h
View File

@ -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