linux-kernel - [RFC PATCH -next V2 1/7] x86: fix copy_mc_to

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Date:   Wed, 6 Apr 2022 09:13:05 +0000
From:   Tong Tiangen <tongtiangen@...wei.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>, <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        Tong Tiangen <tongtiangen@...wei.com>
Subject: [RFC PATCH -next V2 1/7] x86: fix copy_mc_to_user compile error

The follow patch will add copy_mc_to_user to include/linux/uaccess.h, X86
must declare Implemented to avoid compile error.

Signed-off-by: Tong Tiangen <tongtiangen@...wei.com>
---
 arch/x86/include/asm/uaccess.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index f78e2b3501a1..e18c5f098025 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -415,6 +415,7 @@ copy_mc_to_kernel(void *to, const void *from, unsigned len);
 
 unsigned long __must_check
 copy_mc_to_user(void *to, const void *from, unsigned len);
+#define copy_mc_to_user copy_mc_to_user
 #endif
 
 /*
-- 
2.18.0.huawei.25