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@xxxxxxxxxxxxxxx>
---
drivers/dma/idma64.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index 8aea9f0..c7da43c 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;
--
2.5.1
--
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