Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a3291c14 authored by Li Zefan's avatar Li Zefan Committed by Steven Rostedt
Browse files

tracing/filters: Fix MATCH_END_ONLY filter matching 



For '*foo' pattern, we should allow any string ending with
'foo', but event filtering incorrectly disallows strings
like bar_foo_foo:

Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8735.6070604@cn.fujitsu.com>
Acked-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 285caad4

kernel/trace/trace_events_filter.c

+3 −2
Original line number Original line Diff line number Diff line
@@ -275,9 +275,10 @@ static int regex_match_middle(char *str, struct regex *r, int len) 




static int regex_match_end(char *str, struct regex *r, int len)

static int regex_match_end(char *str, struct regex *r, int len)

{

{

	char *ptr = strstr(str, r->pattern);

	int strlen = len - 1;





	if (ptr && (ptr[r->len] == 0))

	if (strlen >= r->len &&

	    memcmp(str + strlen - r->len, r->pattern, r->len) == 0)

		return 1;

		return 1;

	return 0;

	return 0;

}

}