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authorAkinobu Mita <akinobu.mita@gmail.com>2009-11-13 12:53:08 +0100
committerStefan Richter <stefanr@s5r6.in-berlin.de>2009-11-18 20:30:35 +0100
commitaf0940dac37545b1e7900b19c464fb6367d3f82f (patch)
tree415f074a5e06b6f68c30de8b887fe0766d16a58b
parentb2c0a2ac3e59f4764c59c23bd90b571e44256030 (diff)
ieee1394: Use hweight32
Use hweight32 instead of counting for each bit Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (add required include)
-rw-r--r--drivers/ieee1394/ohci1394.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c
index 65c1429e412..d0dc1db80b2 100644
--- a/drivers/ieee1394/ohci1394.c
+++ b/drivers/ieee1394/ohci1394.c
@@ -82,6 +82,7 @@
*
*/
+#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/slab.h>
@@ -434,7 +435,6 @@ static void initialize_dma_trm_ctx(struct dma_trm_ctx *d)
/* Count the number of available iso contexts */
static int get_nb_iso_ctx(struct ti_ohci *ohci, int reg)
{
- int i,ctx=0;
u32 tmp;
reg_write(ohci, reg, 0xffffffff);
@@ -443,11 +443,7 @@ static int get_nb_iso_ctx(struct ti_ohci *ohci, int reg)
DBGMSG("Iso contexts reg: %08x implemented: %08x", reg, tmp);
/* Count the number of contexts */
- for (i=0; i<32; i++) {
- if (tmp & 1) ctx++;
- tmp >>= 1;
- }
- return ctx;
+ return hweight32(tmp);
}
/* Global initialization */