kbuild: fixdep: optimize code slightly

If the target string matches "CONFIG_", move the pointer p
forward.  This saves several 7-chars adjustments.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Michal Marek <mmarek@suse.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index b30406860b73..46cc1b3e5de2 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -251,7 +251,8 @@ static void parse_config_file(const char *map, size_t len)
                         continue;
                 if (memcmp(p, "CONFIG_", 7))
                         continue;
-                for (q = p + 7; q < map + len; q++) {
+                p += 7;
+                for (q = p; q < map + len; q++) {
                         if (!(isalnum(*q) || *q == '_'))
                                 goto found;
                 }
@@ -260,9 +261,9 @@ static void parse_config_file(const char *map, size_t len)
         found:
                 if (!memcmp(q - 7, "_MODULE", 7))
                         q -= 7;
-                if( (q-p-7) < 0 )
+                if (q - p < 0)
                         continue;
-                use_config(p+7, q-p-7);
+                use_config(p, q - p);
         }
 }