| Message ID | 1474417840-7999-1-git-send-email-axel.lin@ingics.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
Hello, On 2016년 09월 21일 09:30, Axel Lin wrote: > The rest of the code uses ARRAY_SIZE to count the number of entries in > ppmu_events array. The NULL terminated entry makes ARRAY_SIZE return > off-by-one value. > > Signed-off-by: Axel Lin <axel.lin@ingics.com> > --- > drivers/devfreq/event/exynos-ppmu.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c > index f55cf0e..c9ffaf0 100644 > --- a/drivers/devfreq/event/exynos-ppmu.c > +++ b/drivers/devfreq/event/exynos-ppmu.c > @@ -90,8 +90,6 @@ struct __exynos_ppmu_events { > PPMU_EVENT(d1-cpu), > PPMU_EVENT(d1-general), > PPMU_EVENT(d1-rt), > - > - { /* sentinel */ }, > }; > > static int exynos_ppmu_find_ppmu_id(struct devfreq_event_dev *edev) > Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
On Thu, Sep 22, 2016 at 3:26 PM, Chanwoo Choi <cw00.choi@samsung.com> wrote: > Hello, > > On 2016년 09월 21일 09:30, Axel Lin wrote: >> The rest of the code uses ARRAY_SIZE to count the number of entries in >> ppmu_events array. The NULL terminated entry makes ARRAY_SIZE return >> off-by-one value. >> >> Signed-off-by: Axel Lin <axel.lin@ingics.com> >> --- >> drivers/devfreq/event/exynos-ppmu.c | 2 -- >> 1 file changed, 2 deletions(-) >> >> diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c >> index f55cf0e..c9ffaf0 100644 >> --- a/drivers/devfreq/event/exynos-ppmu.c >> +++ b/drivers/devfreq/event/exynos-ppmu.c >> @@ -90,8 +90,6 @@ struct __exynos_ppmu_events { >> PPMU_EVENT(d1-cpu), >> PPMU_EVENT(d1-general), >> PPMU_EVENT(d1-rt), >> - >> - { /* sentinel */ }, >> }; >> >> static int exynos_ppmu_find_ppmu_id(struct devfreq_event_dev *edev) >> > > Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Chanwoo, do you feel comfortable with removing this sentinel? (you are never going to rely on the sentinel in the future or in external codes as well?) Actually, although ppmu-event is using ARRAY_SIZE, because the loops are looking for valid name, the correctness is not damaged. Assuming yes, Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> > > -- > Best Regards, > Chanwoo Choi > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c index f55cf0e..c9ffaf0 100644 --- a/drivers/devfreq/event/exynos-ppmu.c +++ b/drivers/devfreq/event/exynos-ppmu.c @@ -90,8 +90,6 @@ struct __exynos_ppmu_events { PPMU_EVENT(d1-cpu), PPMU_EVENT(d1-general), PPMU_EVENT(d1-rt), - - { /* sentinel */ }, }; static int exynos_ppmu_find_ppmu_id(struct devfreq_event_dev *edev)
The rest of the code uses ARRAY_SIZE to count the number of entries in ppmu_events array. The NULL terminated entry makes ARRAY_SIZE return off-by-one value. Signed-off-by: Axel Lin <axel.lin@ingics.com> --- drivers/devfreq/event/exynos-ppmu.c | 2 -- 1 file changed, 2 deletions(-)