linux-kernel - [PATCH 3.2 028/104] x86/bitops: Move BIT

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Message-ID: <lsq.1520823814.128748183@decadent.org.uk>
Date:   Mon, 12 Mar 2018 03:03:34 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Frank Arnold" <frank.arnold@....com>,
        "Linus Torvalds" <torvalds@...ux-foundation.org>,
        "Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
        "Ingo Molnar" <mingo@...nel.org>,
        "Borislav Petkov" <borislav.petkov@....com>
Subject: [PATCH 3.2 028/104] x86/bitops: Move BIT_64() for a wider use

3.2.101-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Borislav Petkov <borislav.petkov@....com>

commit e8f380e00840f694599e6ab42806639f7de26f11 upstream.

Needed for shifting 64-bit values on 32-bit, like MSR values,
for example.

Signed-off-by: Borislav Petkov <borislav.petkov@....com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Frank Arnold <frank.arnold@....com>
Link: http://lkml.kernel.org/r/1337684026-19740-1-git-send-email-bp@amd64.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/x86/include/asm/bitops.h | 2 ++
 drivers/edac/mce_amd.h        | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -15,6 +15,8 @@
 #include <linux/compiler.h>
 #include <asm/alternative.h>
 
+#define BIT_64(n)			(U64_C(1) << (n))
+
 /*
  * These have to be done with inline assembly: that way the bit-setting
  * is guaranteed to be atomic. All bit operations return 0 if the bit
--- a/drivers/edac/mce_amd.h
+++ b/drivers/edac/mce_amd.h
@@ -5,8 +5,6 @@
 
 #include <asm/mce.h>
 
-#define BIT_64(n)			(U64_C(1) << (n))
-
 #define EC(x)				((x) & 0xffff)
 #define XEC(x, mask)			(((x) >> 16) & mask)