Re: [PATCH -next] kernel/cgroup: Remove the unused variable climit

From: Waiman Long
Date: Tue Jan 14 2025 - 10:44:29 EST


On 1/14/25 1:28 AM, Jiapeng Chong wrote:
Variable climit is not effectively used, so delete it.

kernel/cgroup/dmem.c:302:23: warning: variable ‘climit’ set but not used.

Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=13512
Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
---
kernel/cgroup/dmem.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/cgroup/dmem.c b/kernel/cgroup/dmem.c
index 52736ef0ccf2..78d9361ed521 100644
--- a/kernel/cgroup/dmem.c
+++ b/kernel/cgroup/dmem.c
@@ -299,7 +299,7 @@ bool dmem_cgroup_state_evict_valuable(struct dmem_cgroup_pool_state *limit_pool,
bool ignore_low, bool *ret_hit_low)
{
struct dmem_cgroup_pool_state *pool = test_pool;
- struct page_counter *climit, *ctest;
+ struct page_counter *ctest;
u64 used, min, low;
/* Can always evict from current pool, despite limits */
@@ -324,7 +324,6 @@ bool dmem_cgroup_state_evict_valuable(struct dmem_cgroup_pool_state *limit_pool,
{}
}
- climit = &limit_pool->cnt;
ctest = &test_pool->cnt;
dmem_cgroup_calculate_protection(limit_pool, test_pool);

The dmem controller is actually pulled into the drm tree at the moment.

cc relevant parties on how to handle this fix commit.

Cheers,
Longman