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bitmap: Remove dead code, i.e. bitmap_copy_le()

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Besides the fact it's not used anywhere it should be implemented
differently, i.e. via helpers from linux/byteorder/generic.h.
Yet the helpers themselves need to be introduced first.

Also note, the function lacks of the test cases, they must be provided.

Hence, drop the current dead code for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
This commit is contained in:
Andy Shevchenko 2023-08-17 19:20:54 +03:00 committed by Yury Norov
parent 8ed13a762c
commit 7733aa8938
2 changed files with 0 additions and 28 deletions
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5
include/linux/bitmap.h
View File

@ -220,11 +220,6 @@ int bitmap_find_free_region(unsigned long *bitmap, unsigned int bits, int order)
void bitmap_release_region(unsigned long *bitmap, unsigned int pos, int order);
int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order);
#ifdef __BIG_ENDIAN
void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits);
#else
#define bitmap_copy_le bitmap_copy
#endif
int bitmap_print_to_pagebuf(bool list, char *buf,
const unsigned long *maskp, int nmaskbits);

23
lib/bitmap.c
View File

@ -1360,29 +1360,6 @@ int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order)
}
EXPORT_SYMBOL(bitmap_allocate_region);
/**
* bitmap_copy_le - copy a bitmap, putting the bits into little-endian order.
* @dst: destination buffer
* @src: bitmap to copy
* @nbits: number of bits in the bitmap
*
* Require nbits % BITS_PER_LONG == 0.
*/
#ifdef __BIG_ENDIAN
void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits)
{
unsigned int i;
for (i = 0; i < nbits/BITS_PER_LONG; i++) {
if (BITS_PER_LONG == 64)
dst[i] = cpu_to_le64(src[i]);
else
dst[i] = cpu_to_le32(src[i]);
}
}
EXPORT_SYMBOL(bitmap_copy_le);
#endif
unsigned long *bitmap_alloc(unsigned int nbits, gfp_t flags)
{
return kmalloc_array(BITS_TO_LONGS(nbits), sizeof(unsigned long),