diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2017-08-21 20:23:13 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2017-08-22 06:52:11 +0300 |
| commit | c678fa66341c7b82a57cfed0ba3656162e970f99 (patch) | |
| tree | 1573dfbd3e1afb9ea57a8231183f836e51e12c43 /drivers/dma/ste_dma40.c | |
| parent | 61b5f54d8c1fafb97dace958a54cdd72b37138c3 (diff) | |
| download | linux-c678fa66341c7b82a57cfed0ba3656162e970f99.tar.xz | |
dmaengine: remove DMA_SG as it is dead code in kernel
There are no in kernel consumers for DMA_SG op. Removing operation,
dead code, and test code in dmatest.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Gary Hook <gary.hook@amd.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Kedareswara rao Appana <appana.durga.rao@xilinx.com>
Cc: Li Yang <leoyang.li@nxp.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/ste_dma40.c')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index c3052fbfd092..97e1d8b00e22 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2485,19 +2485,6 @@ static struct dma_async_tx_descriptor *d40_prep_memcpy(struct dma_chan *chan, } static struct dma_async_tx_descriptor * -d40_prep_memcpy_sg(struct dma_chan *chan, - struct scatterlist *dst_sg, unsigned int dst_nents, - struct scatterlist *src_sg, unsigned int src_nents, - unsigned long dma_flags) -{ - if (dst_nents != src_nents) - return NULL; - - return d40_prep_sg(chan, src_sg, dst_sg, src_nents, - DMA_MEM_TO_MEM, dma_flags); -} - -static struct dma_async_tx_descriptor * d40_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len, enum dma_transfer_direction direction, unsigned long dma_flags, void *context) @@ -2821,9 +2808,6 @@ static void d40_ops_init(struct d40_base *base, struct dma_device *dev) dev->copy_align = DMAENGINE_ALIGN_4_BYTES; } - if (dma_has_cap(DMA_SG, dev->cap_mask)) - dev->device_prep_dma_sg = d40_prep_memcpy_sg; - if (dma_has_cap(DMA_CYCLIC, dev->cap_mask)) dev->device_prep_dma_cyclic = dma40_prep_dma_cyclic; @@ -2865,7 +2849,6 @@ static int __init d40_dmaengine_init(struct d40_base *base, dma_cap_zero(base->dma_memcpy.cap_mask); dma_cap_set(DMA_MEMCPY, base->dma_memcpy.cap_mask); - dma_cap_set(DMA_SG, base->dma_memcpy.cap_mask); d40_ops_init(base, &base->dma_memcpy); @@ -2883,7 +2866,6 @@ static int __init d40_dmaengine_init(struct d40_base *base, dma_cap_zero(base->dma_both.cap_mask); dma_cap_set(DMA_SLAVE, base->dma_both.cap_mask); dma_cap_set(DMA_MEMCPY, base->dma_both.cap_mask); - dma_cap_set(DMA_SG, base->dma_both.cap_mask); dma_cap_set(DMA_CYCLIC, base->dma_slave.cap_mask); d40_ops_init(base, &base->dma_both); |