Use hweight8 instead of counting for each bit
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
---
arch/mips/mm/cerr-sb1.c | 7 ++-----
1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/arch/mips/mm/cerr-sb1.c b/arch/mips/mm/cerr-sb1.c
index 1bd1f18..3571090 100644
--- a/arch/mips/mm/cerr-sb1.c
+++ b/arch/mips/mm/cerr-sb1.c
@@ -567,13 +567,10 @@ static uint32_t extract_dc(unsigned short addr, int data)
datalo = ((unsigned long long)datalohi << 32) | datalolo;
ecc = dc_ecc(datalo);
if (ecc != datahi) {
- int bits = 0;
+ int bits;
bad_ecc |= 1 << (3-offset);
ecc ^= datahi;
- while (ecc) {
- if (ecc & 1) bits++;
- ecc >>= 1;
- }
+ bits = hweight8(ecc);
res |= (bits == 1) ? CP0_CERRD_DATA_SBE : CP0_CERRD_DATA_DBE;
}
printk(" %02X-%016llX", datahi, datalo);
--
1.6.5.1
