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spi: omap2-mcspi: remove several redundant variables

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Variable count, l, mcspi and spi_cntrl are being assigned but are
never used hence they are redundant and can be removed.

Cleans up clang warnings:
warning: variable 'count' set but not used [-Wunused-but-set-variable]
warning: variable 'l' set but not used [-Wunused-but-set-variable]
warning: variable 'mcspi' set but not used [-Wunused-but-set-variable]
warning: variable 'spi_cntrl' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Colin Ian King 2018-07-30 15:45:46 +01:00 committed by Mark Brown
parent c2c25cc397
commit 45e41bc525
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 0 additions and 9 deletions
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9
drivers/spi/spi-omap2-mcspi.c
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@ -398,11 +398,9 @@ static void omap2_mcspi_tx_dma(struct spi_device *spi,
{ {
struct omap2_mcspi *mcspi; struct omap2_mcspi *mcspi;
struct omap2_mcspi_dma *mcspi_dma; struct omap2_mcspi_dma *mcspi_dma;
unsigned int count;
mcspi = spi_master_get_devdata(spi->master); mcspi = spi_master_get_devdata(spi->master);
mcspi_dma = &mcspi->dma_channels[spi->chip_select]; mcspi_dma = &mcspi->dma_channels[spi->chip_select];
count = xfer->len;
if (mcspi_dma->dma_tx) { if (mcspi_dma->dma_tx) {
struct dma_async_tx_descriptor *tx; struct dma_async_tx_descriptor *tx;
@ -582,7 +580,6 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
struct omap2_mcspi_cs *cs = spi->controller_state; struct omap2_mcspi_cs *cs = spi->controller_state;
struct omap2_mcspi_dma *mcspi_dma; struct omap2_mcspi_dma *mcspi_dma;
unsigned int count; unsigned int count;
u32 l;
u8 *rx; u8 *rx;
const u8 *tx; const u8 *tx;
struct dma_slave_config cfg; struct dma_slave_config cfg;
@ -595,8 +592,6 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
mcspi = spi_master_get_devdata(spi->master); mcspi = spi_master_get_devdata(spi->master);
mcspi_dma = &mcspi->dma_channels[spi->chip_select]; mcspi_dma = &mcspi->dma_channels[spi->chip_select];
l = mcspi_cached_chconf0(spi);
if (cs->word_len <= 8) { if (cs->word_len <= 8) {
width = DMA_SLAVE_BUSWIDTH_1_BYTE; width = DMA_SLAVE_BUSWIDTH_1_BYTE;
@ -676,7 +671,6 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
static unsigned static unsigned
omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer) omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
{ {
struct omap2_mcspi *mcspi;
struct omap2_mcspi_cs *cs = spi->controller_state; struct omap2_mcspi_cs *cs = spi->controller_state;
unsigned int count, c; unsigned int count, c;
u32 l; u32 l;
@ -686,7 +680,6 @@ omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer)
void __iomem *chstat_reg; void __iomem *chstat_reg;
int word_len; int word_len;
mcspi = spi_master_get_devdata(spi->master);
count = xfer->len; count = xfer->len;
c = count; c = count;
word_len = cs->word_len; word_len = cs->word_len;
@ -883,13 +876,11 @@ static int omap2_mcspi_setup_transfer(struct spi_device *spi,
{ {
struct omap2_mcspi_cs *cs = spi->controller_state; struct omap2_mcspi_cs *cs = spi->controller_state;
struct omap2_mcspi *mcspi; struct omap2_mcspi *mcspi;
struct spi_master *spi_cntrl;
u32 l = 0, clkd = 0, div, extclk = 0, clkg = 0; u32 l = 0, clkd = 0, div, extclk = 0, clkg = 0;
u8 word_len = spi->bits_per_word; u8 word_len = spi->bits_per_word;
u32 speed_hz = spi->max_speed_hz; u32 speed_hz = spi->max_speed_hz;
mcspi = spi_master_get_devdata(spi->master); mcspi = spi_master_get_devdata(spi->master);
spi_cntrl = mcspi->master;
if (t != NULL && t->bits_per_word) if (t != NULL && t->bits_per_word)
word_len = t->bits_per_word; word_len = t->bits_per_word;