commit b5ff992b09dbe06a4a020fbb702e29ab61290cc5
author André Goddard Rosa <andre.goddard@gmail.com> Mon Dec 14 18:00:59 2009 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Tue Dec 15 08:53:32 2009 -0800
tree b23916d07465dc4a2dbd011d2497491e5e217e5d
parent 08562cb27da6a1472be15898173105b46801a73b

vsprintf: reduce code size by avoiding extra check

No functional change, just refactor the code so that it avoid checking
"if (hi)" two times in a sequence, taking advantage of previous check made.

It also reduces code size:
   text    data     bss     dec     hex filename
  15726       0       8   15734    3d76 vsprintf.o (ex lib/lib.a-BEFORE)
  15710       0       8   15718    3d66 vsprintf.o (ex lib/lib.a-AFTER)

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lib/vsprintf.c

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index cba2385..4819c3d 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -797,8 +797,9 @@
 				p = pack_hex_byte(p, hi);
 			else
 				*p++ = hex_asc_lo(hi);
+			p = pack_hex_byte(p, lo);
 		}
-		if (hi || lo > 0x0f)
+		else if (lo > 0x0f)
 			p = pack_hex_byte(p, lo);
 		else
 			*p++ = hex_asc_lo(lo);