bitmap: replace bitmap_{from,to}_u32array

with bitmap_{from,to}_arr32 over the kernel. Additionally to it:
* __check_eq_bitmap() now takes single nbits argument.
* __check_eq_u32_array is not used in new test but may be used in
  future. So I don't remove it here, but annotate as __used.

Tested on arm64 and 32-bit BE mips.

[arnd@arndb.de: perf: arm_dsu_pmu: convert to bitmap_from_arr32]
  Link: http://lkml.kernel.org/r/20180201172508.5739-2-ynorov@caviumnetworks.com
[ynorov@caviumnetworks.com: fix net/core/ethtool.c]
  Link: http://lkml.kernel.org/r/20180205071747.4ekxtsbgxkj5b2fz@yury-thinkpad
Link: http://lkml.kernel.org/r/20171228150019.27953-2-ynorov@caviumnetworks.com
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: David Decotigny <decot@googlers.com>,
Cc: David S. Miller <davem@davemloft.net>,
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 87 deletions

diff --git a/lib/bitmap.c b/lib/bitmap.c
index 47fe6441562c..9e498c77ed0e 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -1106,93 +1106,6 @@ int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order)
 EXPORT_SYMBOL(bitmap_allocate_region);
 
 /**
- * bitmap_from_u32array - copy the contents of a u32 array of bits to bitmap
- *	@bitmap: array of unsigned longs, the destination bitmap, non NULL
- *	@nbits: number of bits in @bitmap
- *	@buf: array of u32 (in host byte order), the source bitmap, non NULL
- *	@nwords: number of u32 words in @buf
- *
- * copy min(nbits, 32*nwords) bits from @buf to @bitmap, remaining
- * bits between nword and nbits in @bitmap (if any) are cleared. In
- * last word of @bitmap, the bits beyond nbits (if any) are kept
- * unchanged.
- *
- * Return the number of bits effectively copied.
- */
-unsigned int
-bitmap_from_u32array(unsigned long *bitmap, unsigned int nbits,
-		     const u32 *buf, unsigned int nwords)
-{
-	unsigned int dst_idx, src_idx;
-
-	for (src_idx = dst_idx = 0; dst_idx < BITS_TO_LONGS(nbits); ++dst_idx) {
-		unsigned long part = 0;
-
-		if (src_idx < nwords)
-			part = buf[src_idx++];
-
-#if BITS_PER_LONG == 64
-		if (src_idx < nwords)
-			part |= ((unsigned long) buf[src_idx++]) << 32;
-#endif
-
-		if (dst_idx < nbits/BITS_PER_LONG)
-			bitmap[dst_idx] = part;
-		else {
-			unsigned long mask = BITMAP_LAST_WORD_MASK(nbits);
-
-			bitmap[dst_idx] = (bitmap[dst_idx] & ~mask)
-				| (part & mask);
-		}
-	}
-
-	return min_t(unsigned int, nbits, 32*nwords);
-}
-EXPORT_SYMBOL(bitmap_from_u32array);
-
-/**
- * bitmap_to_u32array - copy the contents of bitmap to a u32 array of bits
- *	@buf: array of u32 (in host byte order), the dest bitmap, non NULL
- *	@nwords: number of u32 words in @buf
- *	@bitmap: array of unsigned longs, the source bitmap, non NULL
- *	@nbits: number of bits in @bitmap
- *
- * copy min(nbits, 32*nwords) bits from @bitmap to @buf. Remaining
- * bits after nbits in @buf (if any) are cleared.
- *
- * Return the number of bits effectively copied.
- */
-unsigned int
-bitmap_to_u32array(u32 *buf, unsigned int nwords,
-		   const unsigned long *bitmap, unsigned int nbits)
-{
-	unsigned int dst_idx = 0, src_idx = 0;
-
-	while (dst_idx < nwords) {
-		unsigned long part = 0;
-
-		if (src_idx < BITS_TO_LONGS(nbits)) {
-			part = bitmap[src_idx];
-			if (src_idx >= nbits/BITS_PER_LONG)
-				part &= BITMAP_LAST_WORD_MASK(nbits);
-			src_idx++;
-		}
-
-		buf[dst_idx++] = part & 0xffffffffUL;
-
-#if BITS_PER_LONG == 64
-		if (dst_idx < nwords) {
-			part >>= 32;
-			buf[dst_idx++] = part & 0xffffffffUL;
-		}
-#endif
-	}
-
-	return min_t(unsigned int, nbits, 32*nwords);
-}
-EXPORT_SYMBOL(bitmap_to_u32array);
-
-/**
  * bitmap_copy_le - copy a bitmap, putting the bits into little-endian order.
  * @dst:   destination buffer
  * @src:   bitmap to copy