X-Git-Url: http://www.aleph1.co.uk/gitweb/?a=blobdiff_plain;f=direct%2Fyaffs_hweight.c;h=89d7f842a7b56e29e44265550ed67905c1a5be7a;hb=8151c9a6c035743c7d12229eaab73e6f5adb9c39;hp=d283b875eae137ae8ec0102c4aeaaa4b025088ec;hpb=c2ae5366db4da0ec3bf98c59ba90f6902c5830a1;p=yaffs2.git diff --git a/direct/yaffs_hweight.c b/direct/yaffs_hweight.c index d283b87..89d7f84 100644 --- a/direct/yaffs_hweight.c +++ b/direct/yaffs_hweight.c @@ -1,7 +1,7 @@ /* * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. * - * Copyright (C) 2002-2010 Aleph One Ltd. + * Copyright (C) 2002-2011 Aleph One Ltd. * for Toby Churchill Ltd and Brightstar Engineering * * Created by Charles Manning @@ -10,10 +10,10 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ - - /* These functions have been renamed to hweightxx to match the - * equivaqlent functions in the Linux kernel. - */ + +/* These functions have been renamed to hweightxx to match the + * equivaqlent functions in the Linux kernel. + */ #include "yaffs_hweight.h" @@ -38,16 +38,15 @@ static const char yaffs_count_bits_table[256] = { int yaffs_hweight8(u8 x) { - int ret_val; - ret_val = yaffs_count_bits_table[x]; - return ret_val; + return yaffs_count_bits_table[x]; } int yaffs_hweight32(u32 x) { - return hweight8(x & 0xff) + - hweight8((x >> 8) & 0xff) + - hweight8((x >> 16) & 0xff) + - hweight8((x >> 24) & 0xff); + return + yaffs_count_bits_table[x & 0xff] + + yaffs_count_bits_table[(x>>8) & 0xff] + + yaffs_count_bits_table[(x>>16) & 0xff] + + yaffs_count_bits_table[(x>>24) & 0xff]; }