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authorIngo Molnar <mingo@kernel.org>2017-11-07 10:51:10 +0100
committerIngo Molnar <mingo@kernel.org>2017-11-07 10:51:10 +0100
commit141d3b1daacd11bdbd6fa74c2b163093e10d17ee (patch)
tree04c98496f16ad2fe34c0cf4f31fedf4fe558c017 /arch/x86/include/asm/alternative-asm.h
parentc201c91799d687c0a6d8c3272950f51aad5ffebe (diff)
parente4880bc5dfb1f02b152e62a894b5c6f3e995b3cf (diff)
downloadblackbird-op-linux-141d3b1daacd11bdbd6fa74c2b163093e10d17ee.tar.gz
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Merge branch 'linus' into x86/apic, to resolve conflicts
Conflicts: arch/x86/include/asm/x2apic.h Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/alternative-asm.h')
-rw-r--r--arch/x86/include/asm/alternative-asm.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
index e7636bac7372..31b627b43a8e 100644
--- a/arch/x86/include/asm/alternative-asm.h
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ALTERNATIVE_ASM_H
#define _ASM_X86_ALTERNATIVE_ASM_H
@@ -62,8 +63,10 @@
#define new_len2 145f-144f
/*
- * max without conditionals. Idea adapted from:
+ * gas compatible max based on the idea from:
* http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
+ *
+ * The additional "-" is needed because gas uses a "true" value of -1.
*/
#define alt_max_short(a, b) ((a) ^ (((a) ^ (b)) & -(-((a) < (b)))))
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