You can do equivalent with strspn(). I do not see noticeable performance
difference.
Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---
scripts/kallsyms.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 7b00b4030be4..a007d901c3a5 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -653,16 +653,6 @@ static int may_be_linker_script_provide_symbol(const struct sym_entry *se)
return 0;
}
-static int prefix_underscores_count(const char *str)
-{
- const char *tail = str;
-
- while (*tail == '_')
- tail++;
-
- return tail - str;
-}
-
static int compare_symbols(const void *a, const void *b)
{
const struct sym_entry *sa;
@@ -691,8 +681,8 @@ static int compare_symbols(const void *a, const void *b)
return wa - wb;
/* sort by the number of prefix underscores */
- wa = prefix_underscores_count(sym_name(sa));
- wb = prefix_underscores_count(sym_name(sb));
+ wa = strspn(sym_name(sa), "_");
+ wb = strspn(sym_name(sb), "_");
if (wa != wb)
return wa - wb;
--
2.17.1
