If condition is false in most cases. So, add an unlikely() to the if condition, so that the optimizer assumes that the condition is false.
Signed-off-by: Muchun Song <[email protected]> --- drivers/base/dd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 169412ee4ae8..8eba453c4e5d 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -450,7 +450,7 @@ static int really_probe(struct device *dev, struct device_driver *drv) bool test_remove = IS_ENABLED(CONFIG_DEBUG_TEST_DRIVER_REMOVE) && !drv->suppress_bind_attrs; - if (defer_all_probes) { + if (unlikely(defer_all_probes)) { /* * Value of defer_all_probes can be set only by * device_defer_all_probes_enable() which, in turn, will call @@ -508,7 +508,7 @@ static int really_probe(struct device *dev, struct device_driver *drv) goto probe_failed; } - if (test_remove) { + if (unlikely(test_remove)) { test_remove = false; if (dev->bus->remove) -- 2.17.1
