X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_bitmap.c;h=7df42cd0066ed84aa29836948516dd130ac23b7b;hp=9fe40321b48f15357a5eb6e2f48f3f44400ed976;hb=fe192b14d52d6c7d4722402686dcb553153916c3;hpb=79d0e028d5b777b2e4cf55d96b737cb024988abe;ds=sidebyside diff --git a/yaffs_bitmap.c b/yaffs_bitmap.c index 9fe4032..7df42cd 100644 --- a/yaffs_bitmap.c +++ b/yaffs_bitmap.c @@ -17,7 +17,7 @@ * Chunk bitmap manipulations */ -static Y_INLINE u8 *yaffs_block_bits(struct yaffs_dev *dev, int blk) +static inline u8 *yaffs_block_bits(struct yaffs_dev *dev, int blk) { if (blk < dev->internal_start_block || blk > dev->internal_end_block) { yaffs_trace(YAFFS_TRACE_ERROR, @@ -90,15 +90,9 @@ int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk) u8 *blk_bits = yaffs_block_bits(dev, blk); int i; int n = 0; - for (i = 0; i < dev->chunk_bit_stride; i++) { - u8 x = *blk_bits; - while (x) { - if (x & 1) - n++; - x >>= 1; - } - blk_bits++; - } + for (i = 0; i < dev->chunk_bit_stride; i++, blk_bits++) + n += hweight8(*blk_bits); + return n; }