From: Akinobu Mita Date: Fri, 13 Nov 2009 07:02:22 +0000 (+0900) Subject: mtd: alauda: Use hweight8 X-Git-Tag: v2.6.33-rc1~66^2~32 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=54c69cc25064c1d333a12b5883aaa3bfa3041dee;p=~shefty%2Frdma-dev.git mtd: alauda: Use hweight8 Signed-off-by: Akinobu Mita Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- diff --git a/drivers/mtd/nand/alauda.c b/drivers/mtd/nand/alauda.c index 6d9649159a1..2d6773281fd 100644 --- a/drivers/mtd/nand/alauda.c +++ b/drivers/mtd/nand/alauda.c @@ -372,15 +372,6 @@ static int alauda_read_oob(struct mtd_info *mtd, loff_t from, void *oob) return __alauda_read_page(mtd, from, ignore_buf, oob); } -static int popcount8(u8 c) -{ - int ret = 0; - - for ( ; c; c>>=1) - ret += c & 1; - return ret; -} - static int alauda_isbad(struct mtd_info *mtd, loff_t ofs) { u8 oob[16]; @@ -391,7 +382,7 @@ static int alauda_isbad(struct mtd_info *mtd, loff_t ofs) return err; /* A block is marked bad if two or more bits are zero */ - return popcount8(oob[5]) >= 7 ? 0 : 1; + return hweight8(oob[5]) >= 7 ? 0 : 1; } static int alauda_bounce_read(struct mtd_info *mtd, loff_t from, size_t len,