2021-12-03 09:32:08

by Jiapeng Chong

Subject: [PATCH] drm/amdkfd: Use max() instead of doing it manually

Fix following coccicheck warning:

./drivers/gpu/drm/amd/amdkfd/kfd_svm.c:2193:16-17: WARNING opportunity
for max().

Reported-by: Abaci Robot <[email protected]>
Signed-off-by: Jiapeng Chong <[email protected]>
---
drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index f2db49c..4f7e7b1 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -2190,7 +2190,7 @@ void schedule_deferred_list_work(struct svm_range_list *svms)

start = mni->interval_tree.start;
last = mni->interval_tree.last;
- start = (start > range->start ? start : range->start) >> PAGE_SHIFT;
+ start = max(start, range->start) >> PAGE_SHIFT;
last = (last < (range->end - 1) ? last : range->end - 1) >> PAGE_SHIFT;
pr_debug("[0x%lx 0x%lx] range[0x%lx 0x%lx] notifier[0x%lx 0x%lx] %d\n",
start, last, range->start >> PAGE_SHIFT,
--
1.8.3.1

2021-12-03 09:44:52

by Ville Syrjälä

Subject: Re: [PATCH] drm/amdkfd: Use max() instead of doing it manually

On Fri, Dec 03, 2021 at 05:31:53PM +0800, Jiapeng Chong wrote:
> Fix following coccicheck warning:
>
> ./drivers/gpu/drm/amd/amdkfd/kfd_svm.c:2193:16-17: WARNING opportunity
> for max().
>
> Reported-by: Abaci Robot <[email protected]>
> Signed-off-by: Jiapeng Chong <[email protected]>
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> index f2db49c..4f7e7b1 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
> @@ -2190,7 +2190,7 @@ void schedule_deferred_list_work(struct svm_range_list *svms)
>
> start = mni->interval_tree.start;
> last = mni->interval_tree.last;
> - start = (start > range->start ? start : range->start) >> PAGE_SHIFT;
> + start = max(start, range->start) >> PAGE_SHIFT;
> last = (last < (range->end - 1) ? last : range->end - 1) >> PAGE_SHIFT;

There's an open coded min() on the very next line.

> pr_debug("[0x%lx 0x%lx] range[0x%lx 0x%lx] notifier[0x%lx 0x%lx] %d\n",
> start, last, range->start >> PAGE_SHIFT,
> --
> 1.8.3.1

--
Ville Syrj?l?
Intel