+ powerpc-add-support-for-folded-p4d-page-tables-fix-2.patch added to -mm tree

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: powerpc/xmon: drop unused pgdir varialble in show_pte() function
has been added to the -mm tree.  Its filename is
     powerpc-add-support-for-folded-p4d-page-tables-fix-2.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/powerpc-add-support-for-folded-p4d-page-tables-fix-2.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/powerpc-add-support-for-folded-p4d-page-tables-fix-2.patch

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------------------------------------------------------
From: Mike Rapoport <rppt@linux.ibm.com>
Subject: powerpc/xmon: drop unused pgdir varialble in show_pte() function

The kernel build robot complained:

arch/powerpc/xmon/xmon.c: In function 'show_pte':
>> arch/powerpc/xmon/xmon.c:3138:16: warning: variable 'pgdir' set but not
>> used [-Wunused-but-set-variable]
3138 |  pgd_t *pgdp, *pgdir;
|                ^~~~~

Remove the unused pgdir variable and adjust if () else statement to comply
with the coding style.

Link: http://lkml.kernel.org/r/20200519181454.GI1059226@linux.ibm.com
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/powerpc/xmon/xmon.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

--- a/arch/powerpc/xmon/xmon.c~powerpc-add-support-for-folded-p4d-page-tables-fix-2
+++ a/arch/powerpc/xmon/xmon.c
@@ -3213,7 +3213,7 @@ static void show_pte(unsigned long addr)
 	unsigned long tskv = 0;
 	struct task_struct *tsk = NULL;
 	struct mm_struct *mm;
-	pgd_t *pgdp, *pgdir;
+	pgd_t *pgdp;
 	p4d_t *p4dp;
 	pud_t *pudp;
 	pmd_t *pmdp;
@@ -3238,13 +3238,10 @@ static void show_pte(unsigned long addr)
 	catch_memory_errors = 1;
 	sync();
 
-	if (mm == &init_mm) {
+	if (mm == &init_mm)
 		pgdp = pgd_offset_k(addr);
-		pgdir = pgd_offset_k(0);
-	} else {
+	else
 		pgdp = pgd_offset(mm, addr);
-		pgdir = pgd_offset(mm, 0);
-	}
 
 	p4dp = p4d_offset(pgdp, addr);
 
_

Patches currently in -mm which might be from rppt@linux.ibm.com are

mm-memblock-replace-dereferences-of-memblock_regionnid-with-api-calls.patch
mm-make-early_pfn_to_nid-and-related-defintions-close-to-each-other.patch
mm-remove-config_have_memblock_node_map-option.patch
mm-free_area_init-use-maximal-zone-pfns-rather-than-zone-sizes.patch
mm-use-free_area_init-instead-of-free_area_init_nodes.patch
alpha-simplify-detection-of-memory-zone-boundaries.patch
arm-simplify-detection-of-memory-zone-boundaries.patch
arm64-simplify-detection-of-memory-zone-boundaries-for-uma-configs.patch
csky-simplify-detection-of-memory-zone-boundaries.patch
m68k-mm-simplify-detection-of-memory-zone-boundaries.patch
parisc-simplify-detection-of-memory-zone-boundaries.patch
sparc32-simplify-detection-of-memory-zone-boundaries.patch
unicore32-simplify-detection-of-memory-zone-boundaries.patch
xtensa-simplify-detection-of-memory-zone-boundaries.patch
mm-remove-early_pfn_in_nid-and-config_nodes_span_other_nodes.patch
mm-free_area_init-allow-defining-max_zone_pfn-in-descending-order.patch
mm-free_area_init-allow-defining-max_zone_pfn-in-descending-order-fix-2.patch
mm-rename-free_area_init_node-to-free_area_init_memoryless_node.patch
mm-clean-up-free_area_init_node-and-its-helpers.patch
mm-simplify-find_min_pfn_with_active_regions.patch
docs-vm-update-memory-models-documentation.patch
h8300-remove-usage-of-__arch_use_5level_hack.patch
arm-add-support-for-folded-p4d-page-tables.patch
arm-add-support-for-folded-p4d-page-tables-fix.patch
arm64-add-support-for-folded-p4d-page-tables.patch
hexagon-remove-__arch_use_5level_hack.patch
ia64-add-support-for-folded-p4d-page-tables.patch
nios2-add-support-for-folded-p4d-page-tables.patch
openrisc-add-support-for-folded-p4d-page-tables.patch
powerpc-add-support-for-folded-p4d-page-tables.patch
powerpc-add-support-for-folded-p4d-page-tables-fix.patch
powerpc-add-support-for-folded-p4d-page-tables-fix-2.patch
sh-drop-__pxd_offset-macros-that-duplicate-pxd_index-ones.patch
sh-add-support-for-folded-p4d-page-tables.patch
unicore32-remove-__arch_use_5level_hack.patch
asm-generic-remove-pgtable-nop4d-hackh.patch
mm-remove-__arch_has_5level_hack-and-include-asm-generic-5level-fixuph.patch
mm-dont-include-asm-pgtableh-if-linux-mmh-is-already-included.patch
mm-introduce-include-linux-pgtableh.patch
mm-reorder-includes-after-introduction-of-linux-pgtableh.patch
csky-replace-definitions-of-__pxd_offset-with-pxd_index.patch
m68k-mm-motorola-move-comment-about-page-table-allocation-funcitons.patch
m68k-mm-move-cachenocahe_page-definitions-close-to-their-user.patch
x86-mm-simplify-init_trampoline-and-surrounding-logic.patch
mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte.patch
mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte-fix.patch
mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte-fix-2.patch
mm-consolidate-pte_index-and-pte_offset_-definitions.patch
mm-consolidate-pmd_index-and-pmd_offset-definitions.patch
mm-consolidate-pud_index-and-pud_offset-definitions.patch
mm-consolidate-pgd_index-and-pgd_offset_k-definitions.patch