lkml.org 
[lkml]   [2019]   [Aug]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 03/10] locking/locktorture: 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.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v2:
- Newly detected in upstream.

kernel/locking/locktorture.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c
index c513031cd7e3..8dd900247205 100644
--- a/kernel/locking/locktorture.c
+++ b/kernel/locking/locktorture.c
@@ -889,16 +889,16 @@ static int __init lock_torture_init(void)
cxt.nrealwriters_stress = 2 * num_online_cpus();

#ifdef CONFIG_DEBUG_MUTEXES
- if (strncmp(torture_type, "mutex", 5) == 0)
+ if (str_has_prefix(torture_type, "mutex"))
cxt.debug_lock = true;
#endif
#ifdef CONFIG_DEBUG_RT_MUTEXES
- if (strncmp(torture_type, "rtmutex", 7) == 0)
+ if (str_has_prefix(torture_type, "rtmutex"))
cxt.debug_lock = true;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
- if ((strncmp(torture_type, "spin", 4) == 0) ||
- (strncmp(torture_type, "rw_lock", 7) == 0))
+ if ((str_has_prefix(torture_type, "spin")) ||
+ (str_has_prefix(torture_type, "rw_lock")))
cxt.debug_lock = true;
#endif

--
2.20.1
\
 
 \ /
  Last update: 2019-08-02 03:47    [W:0.088 / U:0.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site