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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2015-09-14 10:55:38 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-09-25 04:24:05 +0200 |
| commit | 22b74406c5ac1829cd60f75c8c6a4ed1e0f4da03 (patch) | |
| tree | 3863f6ec5e208e264a77b8f6fe7ad8164570ddd7 /drivers/dma | |
| parent | dmaengine: idma64: convert to __ffs() (diff) | |
| download | linux-22b74406c5ac1829cd60f75c8c6a4ed1e0f4da03.tar.xz linux-22b74406c5ac1829cd60f75c8c6a4ed1e0f4da03.zip | |
dmaengine: idma64: useless use of min_t()
We use a pattern
x = min_t(u32, <LOG2_CONSTANT>, __ffs(expr));
There is no need to use min_t() since we can replace it by
x = __ffs(expr | <2^LOG2_CONST>);
and moreover guarantee that argument of __ffs() will be not zero.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/idma64.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c index 13c52b87d59b..e91e499b0d91 100644 --- a/drivers/dma/idma64.c +++ b/drivers/dma/idma64.c @@ -257,7 +257,7 @@ static u64 idma64_hw_desc_fill(struct idma64_hw_desc *hw, dar = config->dst_addr; ctllo |= IDMA64C_CTLL_DST_FIX | IDMA64C_CTLL_SRC_INC | IDMA64C_CTLL_FC_M2P; - src_width = min_t(u32, 2, __ffs(sar | hw->len)); + src_width = __ffs(sar | hw->len | 4); dst_width = __ffs(config->dst_addr_width); } else { /* DMA_DEV_TO_MEM */ sar = config->src_addr; @@ -265,7 +265,7 @@ static u64 idma64_hw_desc_fill(struct idma64_hw_desc *hw, ctllo |= IDMA64C_CTLL_DST_INC | IDMA64C_CTLL_SRC_FIX | IDMA64C_CTLL_FC_P2M; src_width = __ffs(config->src_addr_width); - dst_width = min_t(u32, 2, __ffs(dar | hw->len)); + dst_width = __ffs(dar | hw->len | 4); } lli->sar = sar; |