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| author | Baolin Wang <baolin.wang@linaro.org> | 2018-01-17 14:01:28 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-02-28 14:04:52 +0100 |
| commit | 7f852afe448c95691ead6b57bae5f37562d060b5 (patch) | |
| tree | c6a98558fa6517148c9eaf3bed6b0a6ba443baca /kernel/time | |
| parent | 4a3928c6f8a53fa1aed28ccba227742486e8ddcb (diff) | |
| download | linux-stable-7f852afe448c95691ead6b57bae5f37562d060b5.tar.gz linux-stable-7f852afe448c95691ead6b57bae5f37562d060b5.tar.bz2 linux-stable-7f852afe448c95691ead6b57bae5f37562d060b5.zip | |
clocksource: Don't walk the clocksource list for empty override
If the override clocksource name is empty there is no point in walking the
clocksource list for a match.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: arnd@arndb.de
Cc: sboyd@codeaurora.org
Cc: broonie@kernel.org
Cc: john.stultz@linaro.org
Link: https://lkml.kernel.org/r/069ce2a605546bcad6552968cff755f0a03f9f10.1516167691.git.baolin.wang@linaro.org
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/clocksource.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 65f9e3f24dde..c5fdcb13200f 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -594,6 +594,9 @@ static void __clocksource_select(bool skipcur) if (!best) return; + if (!strlen(override_name)) + goto found; + /* Check for the override clocksource. */ list_for_each_entry(cs, &clocksource_list, list) { if (skipcur && cs == curr_clocksource) @@ -625,6 +628,7 @@ static void __clocksource_select(bool skipcur) break; } +found: if (curr_clocksource != best && !timekeeping_notify(best)) { pr_info("Switched to clocksource %s\n", best->name); curr_clocksource = best; |