linux-kernel - [PATCH 5.9 258/391] x86/mce: Allow for copy_mc

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Message-Id: <20201103203404.432681667@linuxfoundation.org>
Date:   Tue,  3 Nov 2020 21:35:09 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Borislav Petkov <bp@...e.de>
Subject: [PATCH 5.9 258/391] x86/mce: Allow for copy_mc_fragile symbol checksum to be generated

From: Borislav Petkov <bp@...e.de>

commit b3149ffcdb31a8eb854cc442a389ae0b539bf28a upstream.

Add asm/mce.h to asm/asm-prototypes.h so that that asm symbol's checksum
can be generated in order to support CONFIG_MODVERSIONS with it and fix:

  WARNING: modpost: EXPORT symbol "copy_mc_fragile" [vmlinux] version \
	  generation failed, symbol will not be versioned.

For reference see:

  4efca4ed05cb ("kbuild: modversions for EXPORT_SYMBOL() for asm")
  334bb7738764 ("x86/kbuild: enable modversions for symbols exported from asm")

Fixes: ec6347bb4339 ("x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()")
Signed-off-by: Borislav Petkov <bp@...e.de>
Link: https://lkml.kernel.org/r/20201007111447.GA23257@zn.tnic
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/x86/include/asm/asm-prototypes.h |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/x86/include/asm/asm-prototypes.h
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -5,6 +5,7 @@
 #include <asm/string.h>
 #include <asm/page.h>
 #include <asm/checksum.h>
+#include <asm/mce.h>
 
 #include <asm-generic/asm-prototypes.h>