The patch titled
Subject: ia64: old_rr4 added under CONFIG_HUGETLB_PAGE
has been added to the -mm mm-nonmm-unstable branch. Its filename is
ia64-old_rr4-added-under-config_hugetlb_page.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ia64-old_rr4-added-under-config_hugetlb_page.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Souptick Joarder (HPE)" <jrdr.linux@xxxxxxxxx>
Subject: ia64: old_rr4 added under CONFIG_HUGETLB_PAGE
Date: Sun, 26 Jun 2022 07:51:14 +0530
kernel test robot throws below warning ->
arch/ia64/include/asm/mmu_context.h: In function 'reload_context':
arch/ia64/include/asm/mmu_context.h:127:48: warning: variable
'old_rr4' set but not used [-Wunused-but-set-variable]
127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4;
Add it under CONFIG_HUGETLB_PAGE
Link: https://lkml.kernel.org/r/20220626022114.4020-1-jrdr.linux@xxxxxxxxx
Signed-off-by: Souptick Joarder (HPE) <jrdr.linux@xxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/ia64/include/asm/mmu_context.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/arch/ia64/include/asm/mmu_context.h~ia64-old_rr4-added-under-config_hugetlb_page
+++ a/arch/ia64/include/asm/mmu_context.h
@@ -124,9 +124,12 @@ reload_context (nv_mm_context_t context)
{
unsigned long rid;
unsigned long rid_incr = 0;
- unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4;
+ unsigned long rr0, rr1, rr2, rr3, rr4;
+#ifdef CONFIG_HUGETLB_PAGE
+ unsigned long old_rr4;
old_rr4 = ia64_get_rr(RGN_BASE(RGN_HPAGE));
+#endif
rid = context << 3; /* make space for encoding the region number */
rid_incr = 1 << 8;
_
Patches currently in -mm which might be from jrdr.linux@xxxxxxxxx are
mm-madvise-introduce-madv_collapse-sync-hugepage-collapse-fix.patch
ia64-old_rr4-added-under-config_hugetlb_page.patch
