From: Marco Elver elver@google.com
mainline inclusion from mainline-v5.15-rc1 commit 00e67bf030e74a01afab8e0109244b9b0d7e2e43 category: bugfix bugzilla: 181005 https://gitee.com/openeuler/kernel/issues/I4EUY7
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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x86's <asm/tlbflush.h> only declares non-module accessible functions (such as flush_tlb_one_kernel) if !MODULE.
In preparation of including <asm/kfence.h> from the KFENCE test module, only define the helpers if !MODULE to avoid breaking the build with CONFIG_KFENCE_KUNIT_TEST=m.
Signed-off-by: Marco Elver elver@google.com Link: https://lore.kernel.org/r/YQJdarx6XSUQ1tFZ@elver.google.com Signed-off-by: Heiko Carstens hca@linux.ibm.com Signed-off-by: Peng Liu liupeng256@huawei.com Reviewed-by: Kefeng Wang wangkefeng.wang@huawei.com
Signed-off-by: Chen Jun chenjun102@huawei.com --- arch/x86/include/asm/kfence.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/kfence.h b/arch/x86/include/asm/kfence.h index 05b48b33baf0..ff5c7134a37a 100644 --- a/arch/x86/include/asm/kfence.h +++ b/arch/x86/include/asm/kfence.h @@ -8,6 +8,8 @@ #ifndef _ASM_X86_KFENCE_H #define _ASM_X86_KFENCE_H
+#ifndef MODULE + #include <linux/bug.h> #include <linux/kfence.h>
@@ -66,4 +68,6 @@ static inline bool kfence_protect_page(unsigned long addr, bool protect) return true; }
+#endif /* !MODULE */ + #endif /* _ASM_X86_KFENCE_H */