lkml.org 
[lkml]   [2019]   [Aug]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 1/8] dma: debug: Replace strncmp with str_has_prefix
Date
strncmp(str, const, len) is error-prone because len
is easy to have typo.
The example is the hard-coded len has counting error
or sizeof(const) forgets - 1.
So we prefer using newly introduced str_has_prefix()
to substitute such strncmp to make code better.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v3:
- Revise the description.

kernel/dma/debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 099002d84f46..0f9e1aba3e1a 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -970,7 +970,7 @@ static __init int dma_debug_cmdline(char *str)
if (!str)
return -EINVAL;

- if (strncmp(str, "off", 3) == 0) {
+ if (str_has_prefix(str, "off")) {
pr_info("debugging disabled on kernel command line\n");
global_disable = true;
}
--
2.20.1
\
 
 \ /
  Last update: 2019-08-05 14:23    [W:0.051 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site