[alsa-devel] [PATCH v4 05/12] vsprintf: reduce code size by avoiding extra check

[André Goddard Rosa]

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
  15735       0       8   15743    3d7f lib/vsprintf.o-before
  15719       0       8   15727    3d6f lib/vsprintf.o-minus-double-check

Signed-off-by: André Goddard Rosa <andre.goddard at gmail.com>
Acked-by: Frederic Weisbecker <fweisbec at gmail.com>
---
 lib/vsprintf.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 14e4197..af79152 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -747,8 +747,9 @@ static char *ip6_compressed_string(char *p, const char *addr)
 				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);
-- 
1.6.5.2.153.g6e31f.dirty