Re: [PATCH 1/2] sh: cache: remove unused but set variables in sh4_flush_cache_range

[Thorsten Blum]

On Thu, Apr 23, 2026 at 11:46:38AM -0400, Zi Yan wrote:
> On 23 Apr 2026, at 10:53, Thorsten Blum wrote:
> 
> > Remove 'start' and 'end' to avoid two "variable set but not used"
> > warnings triggered by -Wunused-but-set-variable.
> >
> > Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
> > ---
> >  arch/sh/mm/cache-sh4.c | 3 ---
> >  1 file changed, 3 deletions(-)
> >
> > diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
> > index 83fb34b39ca7..9776027382cc 100644
> > --- a/arch/sh/mm/cache-sh4.c
> > +++ b/arch/sh/mm/cache-sh4.c
> > @@ -284,11 +284,8 @@ static void sh4_flush_cache_range(void *args)
> >  {
> >  	struct flusher_data *data = args;
> >  	struct vm_area_struct *vma;
> > -	unsigned long start, end;
> >
> >  	vma = data->vma;
> > -	start = data->addr1;
> > -	end = data->addr2;
> >
> >  	if (cpu_context(smp_processor_id(), vma->vm_mm) == NO_CONTEXT)
> >  		return;
> 
> Is the comment above the function considered stale too?

Yes, that should be removed too. I will send a v2.

> “START, END: Virtual Address (U0 address)” and the NOTE.

I think the NOTE is still relevant as it explains why flush_dcache_all()
is used.

> Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>

Thanks,
Thorsten