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| author | Yann E. MORIN <yann.morin.1998@free.fr> | 2013-07-13 15:09:43 +0200 |
|---|---|---|
| committer | Yann E. MORIN <yann.morin.1998@free.fr> | 2013-07-16 20:26:46 +0200 |
| commit | 26e933e3c35624d80281330c4beb17db4cd4960f (patch) | |
| tree | af5f4cfbf5410eac6dec87cd4d314ba852d9bc9e /scripts/kconfig/symbol.c | |
| parent | 9e554dd7b2de269c697943712d91b668f27a42bd (diff) | |
| download | linux-26e933e3c35624d80281330c4beb17db4cd4960f.tar.bz2 | |
kconfig: avoid multiple calls to strlen
Calls to strlen are costly, so avoid calling strln as much as we can.
Reported-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Diffstat (limited to 'scripts/kconfig/symbol.c')
| -rw-r--r-- | scripts/kconfig/symbol.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c index d550300ec00c..020a0ac147e1 100644 --- a/scripts/kconfig/symbol.c +++ b/scripts/kconfig/symbol.c @@ -967,7 +967,7 @@ static int sym_rel_comp( const void *sym1, const void *sym2 ) { struct sym_match *s1 = *(struct sym_match **)sym1; struct sym_match *s2 = *(struct sym_match **)sym2; - int l1, l2; + int exact1, exact2; /* Exact match: * - if matched length on symbol s1 is the length of that symbol, @@ -978,11 +978,11 @@ static int sym_rel_comp( const void *sym1, const void *sym2 ) * exactly; if this is the case, we can't decide which comes first, * and we fallback to sorting alphabetically. */ - l1 = s1->eo - s1->so; - l2 = s2->eo - s2->so; - if (l1 == strlen(s1->sym->name) && l2 != strlen(s2->sym->name)) + exact1 = (s1->eo - s1->so) == strlen(s1->sym->name); + exact2 = (s2->eo - s2->so) == strlen(s2->sym->name); + if (exact1 && !exact2) return -1; - if (l1 != strlen(s1->sym->name) && l2 == strlen(s2->sym->name)) + if (!exact1 && exact2) return 1; /* As a fallback, sort symbols alphabetically */ |