From bbc76560d488c437dbddff72242b0a07e42a0fd0 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 9 Dec 2013 11:16:00 -0800 Subject: [PATCH] dma: fix fsldma build warnings drivers/dma/fsldma.c: In function 'fsldma_cleanup_descriptor': drivers/dma/fsldma.c:860:6: warning: unused variable 'len' [-Wunused-variable] drivers/dma/fsldma.c:859:13: warning: unused variable 'dst' [-Wunused-variable] drivers/dma/fsldma.c:858:13: warning: unused variable 'src' [-Wunused-variable] drivers/dma/fsldma.c:857:17: warning: unused variable 'dev' [-Wunused-variable] - due to unmap changes drivers/dma/fsldma.c: In function 'fsl_dma_tx_submit': drivers/dma/fsldma.c:428:2: warning: 'cookie' may be used uninitialized in this function [-Wuninitialized] - long standing warning Cc: Bartlomiej Zolnierkiewicz Cc: Li Yang Cc: Zhang Wei Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 7086a16a55f2..f157c6f76b32 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -86,11 +86,6 @@ static void set_desc_cnt(struct fsldma_chan *chan, hw->count = CPU_TO_DMA(chan, count, 32); } -static u32 get_desc_cnt(struct fsldma_chan *chan, struct fsl_desc_sw *desc) -{ - return DMA_TO_CPU(chan, desc->hw.count, 32); -} - static void set_desc_src(struct fsldma_chan *chan, struct fsl_dma_ld_hw *hw, dma_addr_t src) { @@ -101,16 +96,6 @@ static void set_desc_src(struct fsldma_chan *chan, hw->src_addr = CPU_TO_DMA(chan, snoop_bits | src, 64); } -static dma_addr_t get_desc_src(struct fsldma_chan *chan, - struct fsl_desc_sw *desc) -{ - u64 snoop_bits; - - snoop_bits = ((chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX) - ? ((u64)FSL_DMA_SATR_SREADTYPE_SNOOP_READ << 32) : 0; - return DMA_TO_CPU(chan, desc->hw.src_addr, 64) & ~snoop_bits; -} - static void set_desc_dst(struct fsldma_chan *chan, struct fsl_dma_ld_hw *hw, dma_addr_t dst) { @@ -121,16 +106,6 @@ static void set_desc_dst(struct fsldma_chan *chan, hw->dst_addr = CPU_TO_DMA(chan, snoop_bits | dst, 64); } -static dma_addr_t get_desc_dst(struct fsldma_chan *chan, - struct fsl_desc_sw *desc) -{ - u64 snoop_bits; - - snoop_bits = ((chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX) - ? ((u64)FSL_DMA_DATR_DWRITETYPE_SNOOP_WRITE << 32) : 0; - return DMA_TO_CPU(chan, desc->hw.dst_addr, 64) & ~snoop_bits; -} - static void set_desc_next(struct fsldma_chan *chan, struct fsl_dma_ld_hw *hw, dma_addr_t next) { @@ -408,7 +383,7 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) struct fsl_desc_sw *desc = tx_to_fsl_desc(tx); struct fsl_desc_sw *child; unsigned long flags; - dma_cookie_t cookie; + dma_cookie_t cookie = -EINVAL; spin_lock_irqsave(&chan->desc_lock, flags); @@ -854,10 +829,6 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan, struct fsl_desc_sw *desc) { struct dma_async_tx_descriptor *txd = &desc->async_tx; - struct device *dev = chan->common.device->dev; - dma_addr_t src = get_desc_src(chan, desc); - dma_addr_t dst = get_desc_dst(chan, desc); - u32 len = get_desc_cnt(chan, desc); /* Run the link descriptor callback function */ if (txd->callback) {