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| author |   Chuhong Yuan <hslester96@gmail.com> | 2019-08-02 09:46:56 +0800 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@kernel.org> | 2019-10-05 11:48:38 -0700 |
| commit | c5d3c8ca22d487ad9a18da9a7722a76e9bdbf4fd (patch) | |
| tree | c5c2062bfe2b3c47f33211adc11465eb4bc7228a | |
| parent | rcu: Remove unused function rcutorture_record_progress() (diff) | |
| download | linux-dev-c5d3c8ca22d487ad9a18da9a7722a76e9bdbf4fd.tar.xz linux-dev-c5d3c8ca22d487ad9a18da9a7722a76e9bdbf4fd.zip | |
locktorture: Replace strncmp() with str_has_prefix()
The strncmp() function is error-prone because it is easy to get the
length wrong, especially if the string is subject to change, especially
given the need to account for the terminating nul byte. This commit
therefore substitutes the newly introduced str_has_prefix(), which
does not require a separately specified length.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
| -rw-r--r-- | kernel/locking/locktorture.c | 8 |
1 files 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 |