From: Andy Shevchenko Date: Mon, 14 Sep 2015 08:55:37 +0000 (+0300) Subject: dmaengine: idma64: convert to __ffs() X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=87b045969ad3fe021ccbd1ed88e7cb90adf4ca80;p=deliverable%2Flinux.git dmaengine: idma64: convert to __ffs() We replace __fls() by __ffs() since we have to find a *minimum* data width that satisfies both source and destination. Signed-off-by: Andy Shevchenko Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c index 18c14e1f1414..13c52b87d59b 100644 --- a/drivers/dma/idma64.c +++ b/drivers/dma/idma64.c @@ -257,15 +257,15 @@ static u64 idma64_hw_desc_fill(struct idma64_hw_desc *hw, dar = config->dst_addr; ctllo |= IDMA64C_CTLL_DST_FIX | IDMA64C_CTLL_SRC_INC | IDMA64C_CTLL_FC_M2P; - src_width = min_t(u32, 2, __fls(sar | hw->len)); - dst_width = __fls(config->dst_addr_width); + src_width = min_t(u32, 2, __ffs(sar | hw->len)); + dst_width = __ffs(config->dst_addr_width); } else { /* DMA_DEV_TO_MEM */ sar = config->src_addr; dar = hw->phys; ctllo |= IDMA64C_CTLL_DST_INC | IDMA64C_CTLL_SRC_FIX | IDMA64C_CTLL_FC_P2M; - src_width = __fls(config->src_addr_width); - dst_width = min_t(u32, 2, __fls(dar | hw->len)); + src_width = __ffs(config->src_addr_width); + dst_width = min_t(u32, 2, __ffs(dar | hw->len)); } lli->sar = sar;