From: Chuhong Yuan <hslester96@gmail.com>
Date: Mon, 29 Jul 2019 15:13:59 +0000 (+0800)
Subject: kdb: Replace strncmp with str_has_prefix
X-Git-Tag: for-linus-2019-09-27~63^2~1
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=635714312e6a515de2e78e74bf8d5b10593a4dbf;p=linux-block.git

kdb: Replace strncmp with str_has_prefix

strncmp(str, const, len) is error-prone.
We had better use newly introduced
str_has_prefix() instead of it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
---

diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 9ecfa37c7fbf..4567fe998c30 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -830,7 +830,7 @@ static void parse_grep(const char *str)
 	cp++;
 	while (isspace(*cp))
 		cp++;
-	if (strncmp(cp, "grep ", 5)) {
+	if (!str_has_prefix(cp, "grep ")) {
 		kdb_printf("invalid 'pipe', see grephelp\n");
 		return;
 	}