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

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On Tue, Jan 14, 2025 at 06:56:38PM +0100, Maxime Ripard wrote:
> On Tue, Jan 14, 2025 at 10:41:28AM -0500, Waiman Long wrote:
> > 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.
> 
> We can either take it through drm with one of the cgroup maintainers
> ack, or they can merge the PR in their tree and merge the fixes as they
> wish through their tree.

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Please route with the rest of dmem changes.

Thanks.

-- 
tejun




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