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>

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index cba2385a6f0b..4819c3d6cca4 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -797,8 +797,9 @@ 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);