commit 22b74406c5ac1829cd60f75c8c6a4ed1e0f4da03
author Andy Shevchenko <andriy.shevchenko@linux.intel.com> Mon Sep 14 11:55:38 2015 +0300
committer Vinod Koul <vinod.koul@intel.com> Fri Sep 25 07:54:05 2015 +0530
tree 3863f6ec5e208e264a77b8f6fe7ad8164570ddd7
parent 87b045969ad3fe021ccbd1ed88e7cb90adf4ca80

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>

drivers/dma/idma64.c

diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index 13c52b8..e91e499 100644
--- a/drivers/dma/idma64.c
+++ b/drivers/dma/idma64.c
@@ -257,7 +257,7 @@
 		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 @@
 		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;