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ieee1394: Use hweight32

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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)
This commit is contained in:
Akinobu Mita 2009-11-13 12:53:08 +01:00 committed by Stefan Richter
parent b2c0a2ac3e
commit af0940dac3
1 changed files with 2 additions and 6 deletions
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8
drivers/ieee1394/ohci1394.c
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@ -82,6 +82,7 @@
* *
*/ */
#include <linux/bitops.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/list.h> #include <linux/list.h>
#include <linux/slab.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 */ /* Count the number of available iso contexts */
static int get_nb_iso_ctx(struct ti_ohci *ohci, int reg) static int get_nb_iso_ctx(struct ti_ohci *ohci, int reg)
{ {
int i,ctx=0;
u32 tmp; u32 tmp;
reg_write(ohci, reg, 0xffffffff); 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); DBGMSG("Iso contexts reg: %08x implemented: %08x", reg, tmp);
/* Count the number of contexts */ /* Count the number of contexts */
for (i=0; i<32; i++) { return hweight32(tmp);
if (tmp & 1) ctx++;
tmp >>= 1;
}
return ctx;
} }
/* Global initialization */ /* Global initialization */