+ mm-remove-mmu_gathers-storage-from-remaining-architectures.patch added to -mm tree

+ mm-remove-mmu_gathers-storage-from-remaining-architectures.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: mm: remove mmu_gathers storage from remaining architectures
has been added to the -mm tree.  Its filename is
     mm-remove-mmu_gathers-storage-from-remaining-architectures.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-remove-mmu_gathers-storage-from-remaining-architectures.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-remove-mmu_gathers-storage-from-remaining-architectures.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Stafford Horne <shorne@gmail.com>
Subject: mm: remove mmu_gathers storage from remaining architectures

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?

Link: https://lkml.kernel.org/r/20220205141956.3315419-1-shorne@gmail.com
Signed-off-by: Stafford Horne <shorne@gmail.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/hexagon/mm/init.c  |    2 --
 arch/nds32/mm/init.c    |    1 -
 arch/openrisc/mm/init.c |    2 --
 3 files changed, 5 deletions(-)

--- a/arch/hexagon/mm/init.c~mm-remove-mmu_gathers-storage-from-remaining-architectures
+++ a/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;
 
--- a/arch/nds32/mm/init.c~mm-remove-mmu_gathers-storage-from-remaining-architectures
+++ a/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];
 
--- a/arch/openrisc/mm/init.c~mm-remove-mmu_gathers-storage-from-remaining-architectures
+++ a/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 };
_

Patches currently in -mm which might be from shorne@gmail.com are

mm-remove-mmu_gathers-storage-from-remaining-architectures.patch