From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 16 Dec 2009 00:48:24 +0000 (-0800)
Subject: qnx4: use hweight8
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=868d64812ae84e8f094e0bcf95157c7d79d625ec;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

qnx4: use hweight8

Use hweight8 instead of counting for each bit

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Anders Larsen <al@alarsen.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/qnx4/bitmap.c b/fs/qnx4/bitmap.c
index a17440bce01..22e0d60e53e 100644
--- a/fs/qnx4/bitmap.c
+++ b/fs/qnx4/bitmap.c
@@ -28,22 +28,7 @@ static void count_bits(register const char *bmPart, register int size,
 	}
 	do {
 		b = *bmPart++;
-		if ((b & 1) == 0)
-			tot++;
-		if ((b & 2) == 0)
-			tot++;
-		if ((b & 4) == 0)
-			tot++;
-		if ((b & 8) == 0)
-			tot++;
-		if ((b & 16) == 0)
-			tot++;
-		if ((b & 32) == 0)
-			tot++;
-		if ((b & 64) == 0)
-			tot++;
-		if ((b & 128) == 0)
-			tot++;
+		tot += 8 - hweight8(b);
 		size--;
 	} while (size != 0);
 	*tf = tot;