| Message ID | 20240821114250.1416421-1-d-gole@ti.com (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Headers | show |
| Series | cpuidle: remove dead code in cpuidle_enter_state | expand |
On Wed, Aug 21, 2024 at 1:43 PM Dhruva Gole <d-gole@ti.com> wrote: > > Checking for index < 0 is useless because the find_deepest_state > function never really returns a negative value. Since this code hasn't > been reported in over 9 years it's dead code. Hence, remove it. > > Signed-off-by: Dhruva Gole <d-gole@ti.com> > --- > > Discussions on the original series that added this code: > https://lore.kernel.org/linux-pm/20240821095105.xuf2a5xe3yxqqewj@lcpd911/T/#u > > drivers/cpuidle/cpuidle.c | 5 +---- > 1 file changed, 1 insertion(+), 4 deletions(-) > > diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c > index 02e40fd7d948..9e418aec1755 100644 > --- a/drivers/cpuidle/cpuidle.c > +++ b/drivers/cpuidle/cpuidle.c > @@ -228,10 +228,7 @@ noinstr int cpuidle_enter_state(struct cpuidle_device *dev, > if (broadcast && tick_broadcast_enter()) { > index = find_deepest_state(drv, dev, target_state->exit_latency_ns, > CPUIDLE_FLAG_TIMER_STOP, false); > - if (index < 0) { > - default_idle_call(); > - return -EBUSY; > - } > + > target_state = &drv->states[index]; > broadcast = false; > } > Applied as 6.12 material, thanks!
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 02e40fd7d948..9e418aec1755 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -228,10 +228,7 @@ noinstr int cpuidle_enter_state(struct cpuidle_device *dev, if (broadcast && tick_broadcast_enter()) { index = find_deepest_state(drv, dev, target_state->exit_latency_ns, CPUIDLE_FLAG_TIMER_STOP, false); - if (index < 0) { - default_idle_call(); - return -EBUSY; - } + target_state = &drv->states[index]; broadcast = false; }
Checking for index < 0 is useless because the find_deepest_state function never really returns a negative value. Since this code hasn't been reported in over 9 years it's dead code. Hence, remove it. Signed-off-by: Dhruva Gole <d-gole@ti.com> --- Discussions on the original series that added this code: https://lore.kernel.org/linux-pm/20240821095105.xuf2a5xe3yxqqewj@lcpd911/T/#u drivers/cpuidle/cpuidle.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) base-commit: bb1b0acdcd66e0d8eedee3570d249e076b89ab32