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Commit f2ad6992 authored by Fabio Estevam's avatar Fabio Estevam Committed by Vinod Koul
Browse files

dma: mxs-dma: Fix build warnings with W=1 



Fix the following warnings when building with W=1 option:

drivers/dma/mxs-dma.c: In function 'mxs_dma_alloc_chan_resources':
drivers/dma/mxs-dma.c:368:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/dma/mxs-dma.c: In function 'mxs_dma_prep_slave_sg':
drivers/dma/mxs-dma.c:481:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/dma/mxs-dma.c:494:3: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/dma/mxs-dma.c:515:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/dma/mxs-dma.c: In function 'mxs_dma_prep_dma_cyclic':
drivers/dma/mxs-dma.c:563:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 5ea7caf3

drivers/dma/mxs-dma.c

+4 −4
Original line number Diff line number Diff line
@@ -109,7 +109,7 @@ struct mxs_dma_chan { 
	struct dma_chan			chan;

	struct dma_async_tx_descriptor	desc;

	struct tasklet_struct		tasklet;

	int				chan_irq;

	unsigned int			chan_irq;

	struct mxs_dma_ccw		*ccw;

	dma_addr_t			ccw_phys;

	int				desc_count;
@@ -441,7 +441,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg( 
	struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;

	struct mxs_dma_ccw *ccw;

	struct scatterlist *sg;

	int i, j;

	u32 i, j;

	u32 *pio;

	bool append = flags & DMA_PREP_INTERRUPT;

	int idx = append ? mxs_chan->desc_count : 0;
@@ -537,8 +537,8 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_dma_cyclic( 
{

	struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(chan);

	struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;

	int num_periods = buf_len / period_len;

	int i = 0, buf = 0;

	u32 num_periods = buf_len / period_len;

	u32 i = 0, buf = 0;



	if (mxs_chan->status == DMA_IN_PROGRESS)

		return NULL;