Messages in this thread Patch in this message | | | From | Zenghui Yu <> | Subject | [PATCH] driver core: Use the ktime_us_delta() helper | Date | Mon, 3 Aug 2020 11:33:43 +0800 |
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Use the ktime_us_delta() helper to measure the driver probe time. Given the helpers already returns an s64 value, let's drop the unnecessary casting to s64 as well. There is no functional change.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> --- drivers/base/dd.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 3cefe89e94ca..0ef5b2f32932 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -618,15 +618,14 @@ static int really_probe(struct device *dev, struct device_driver *drv) */ static int really_probe_debug(struct device *dev, struct device_driver *drv) { - ktime_t calltime, delta, rettime; + ktime_t calltime, rettime; int ret; calltime = ktime_get(); ret = really_probe(dev, drv); rettime = ktime_get(); - delta = ktime_sub(rettime, calltime); pr_debug("probe of %s returned %d after %lld usecs\n", - dev_name(dev), ret, (s64) ktime_to_us(delta)); + dev_name(dev), ret, ktime_us_delta(rettime, calltime)); return ret; } -- 2.19.1
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