Re: [PATCH] mm: Remove mmu_gathers storage from remaining architectures

From: Stafford Horne
Date: Sat Feb 05 2022 - 22:24:09 EST


On Sat, Feb 05, 2022 at 05:16:06PM +0200, Mike Rapoport wrote:
> On Sat, Feb 05, 2022 at 11:19:53PM +0900, Stafford Horne wrote:
> > Originally the mmu_gathers were removed in commit 1c3951769621 ("mm: now
> > that all old mmu_gather code is gone, remove the storage"). However,
> > the openrisc and hexagon architecture were merged around the same time
> > and mmu_gathers was not removed.
> >
> > This patch removes them from openrisc, hexagon and nds32:
> >
> > Noticed while cleaning this warning:
> >
> > arch/openrisc/mm/init.c:41:1: warning: symbol 'mmu_gathers' was not declared. Should it be static?
> >
> > Signed-off-by: Stafford Horne <shorne@xxxxxxxxx>
>
> Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>

Thank you,

BTW For now my plan is to queue this on my openrisc branch unless someone else
wants to pick this up.

-Stafford

> > ---
> > arch/hexagon/mm/init.c | 2 --
> > arch/nds32/mm/init.c | 1 -
> > arch/openrisc/mm/init.c | 2 --
> > 3 files changed, 5 deletions(-)
> >
> > diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c
> > index f01e91e10d95..3167a3b5c97b 100644
> > --- a/arch/hexagon/mm/init.c
> > +++ b/arch/hexagon/mm/init.c
> > @@ -29,8 +29,6 @@ int max_kernel_seg = 0x303;
> > /* indicate pfn's of high memory */
> > unsigned long highstart_pfn, highend_pfn;
> >
> > -DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
> > -
> > /* Default cache attribute for newly created page tables */
> > unsigned long _dflt_cache_att = CACHEDEF;
> >
> > diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
> > index f63f839738c4..825c85cab1a1 100644
> > --- a/arch/nds32/mm/init.c
> > +++ b/arch/nds32/mm/init.c
> > @@ -18,7 +18,6 @@
> > #include <asm/tlb.h>
> > #include <asm/page.h>
> >
> > -DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
> > DEFINE_SPINLOCK(anon_alias_lock);
> > extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
> >
> > diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
> > index 97305bde1b16..3a021ab6f1ae 100644
> > --- a/arch/openrisc/mm/init.c
> > +++ b/arch/openrisc/mm/init.c
> > @@ -38,8 +38,6 @@
> >
> > int mem_init_done;
> >
> > -DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
> > -
> > static void __init zone_sizes_init(void)
> > {
> > unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 };
> > --
> > 2.31.1
> >
>
> --
> Sincerely yours,
> Mike.