The patch titled
Subject: mm: kasan: fix redefinition of 'kasan_populate_early_vm_area_shadow'
has been added to the -mm tree. Its filename is
kasan-arm64-fix-pcpu_page_first_chunk-crash-with-kasan_vmalloc-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kasan-arm64-fix-pcpu_page_first_chunk-crash-with-kasan_vmalloc-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kasan-arm64-fix-pcpu_page_first_chunk-crash-with-kasan_vmalloc-fix.patch
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------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: kasan: fix redefinition of 'kasan_populate_early_vm_area_shadow'
Move kasan_populate_early_vm_area_shadow() from mm/kasan/init.c to
mm/kasan/shadow.c, make it under CONFIG_KASAN_VMALLOC to fix the
redefinition issue.
Link: https://lkml.kernel.org/r/20211011123211.3936196-1-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: resh Kamboju <naresh.kamboju@xxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/init.c | 5 -----
mm/kasan/shadow.c | 5 +++++
2 files changed, 5 insertions(+), 5 deletions(-)
--- a/mm/kasan/init.c~kasan-arm64-fix-pcpu_page_first_chunk-crash-with-kasan_vmalloc-fix
+++ a/mm/kasan/init.c
@@ -279,11 +279,6 @@ int __ref kasan_populate_early_shadow(co
return 0;
}
-void __init __weak kasan_populate_early_vm_area_shadow(void *start,
- unsigned long size)
-{
-}
-
static void kasan_free_pte(pte_t *pte_start, pmd_t *pmd)
{
pte_t *pte;
--- a/mm/kasan/shadow.c~kasan-arm64-fix-pcpu_page_first_chunk-crash-with-kasan_vmalloc-fix
+++ a/mm/kasan/shadow.c
@@ -254,6 +254,11 @@ core_initcall(kasan_memhotplug_init);
#ifdef CONFIG_KASAN_VMALLOC
+void __init __weak kasan_populate_early_vm_area_shadow(void *start,
+ unsigned long size)
+{
+}
+
static int kasan_populate_vmalloc_pte(pte_t *ptep, unsigned long addr,
void *unused)
{
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
slub-add-back-check-for-free-nonslab-objects.patch
vmalloc-choose-a-better-start-address-in-vm_area_register_early.patch
arm64-support-page-mapping-percpu-first-chunk-allocator.patch
kasan-arm64-fix-pcpu_page_first_chunk-crash-with-kasan_vmalloc.patch
kasan-arm64-fix-pcpu_page_first_chunk-crash-with-kasan_vmalloc-fix.patch
mm-nommu-kill-arch_get_unmapped_area.patch
kallsyms-remove-arch-specific-text-and-data-check.patch
kallsyms-fix-address-checks-for-kernel-related-range.patch
sections-move-and-rename-core_kernel_data-to-is_kernel_core_data.patch
sections-move-is_kernel_inittext-into-sectionsh.patch
x86-mm-rename-__is_kernel_text-to-is_x86_32_kernel_text.patch
sections-provide-internal-__is_kernel-and-__is_kernel_text-helper.patch
mm-kasan-use-is_kernel-helper.patch
extable-use-is_kernel_text-helper.patch
powerpc-mm-use-core_kernel_text-helper.patch
microblaze-use-is_kernel_text-helper.patch
alpha-use-is_kernel_text-helper.patch
