diff options
| author | Colin Ian King <colin.king@canonical.com> | 2017-10-11 12:28:22 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2017-10-12 16:04:41 +0200 |
| commit | f2fd4d9f323d8979fe77e673bb555199b531fa1a (patch) | |
| tree | 04dfe5b5bb594c2cfcad8f91404fa6c6d4140857 /drivers/dma/stm32-mdma.c | |
| parent | dmaengine: stm32_mdma: add CONFIG_OF dependency (diff) | |
| download | linux-f2fd4d9f323d8979fe77e673bb555199b531fa1a.tar.xz linux-f2fd4d9f323d8979fe77e673bb555199b531fa1a.zip | |
dmaengine: stm32: remove redundant initialization of hwdesc
hwdesc is being initialized to desc->hwdesc but this is never read
as hwdesc is overwritten in a for-loop. Remove the redundant
initialization and move the declaration of hwdesc into the for-loop.
Cleans up clang warning:
Value stored to 'hwdesc' during its initialization is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/stm32-mdma.c')
| -rw-r--r-- | drivers/dma/stm32-mdma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c index 0db59a7e80e0..d3be6bffdf12 100644 --- a/drivers/dma/stm32-mdma.c +++ b/drivers/dma/stm32-mdma.c @@ -1252,13 +1252,13 @@ static size_t stm32_mdma_desc_residue(struct stm32_mdma_chan *chan, u32 curr_hwdesc) { struct stm32_mdma_device *dmadev = stm32_mdma_get_dev(chan); - struct stm32_mdma_hwdesc *hwdesc = desc->hwdesc; u32 cbndtr, residue, modulo, burst_size; int i; residue = 0; for (i = curr_hwdesc + 1; i < desc->count; i++) { - hwdesc = &desc->hwdesc[i]; + struct stm32_mdma_hwdesc *hwdesc = &desc->hwdesc[i]; + residue += STM32_MDMA_CBNDTR_BNDT(hwdesc->cbndtr); } cbndtr = stm32_mdma_read(dmadev, STM32_MDMA_CBNDTR(chan->id)); |