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vsprintf: reduce code size by avoiding extra check

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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>
This commit is contained in:
André Goddard Rosa 2009-12-14 18:00:59 -08:00 committed by Linus Torvalds
parent 08562cb27d
commit b5ff992b09
1 changed files with 2 additions and 1 deletions
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3
lib/vsprintf.c
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@ -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);