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x86/elf: Use _BITUL() macro in UAPI headers 

Replace BIT() in x86's UAPI header with _BITUL(). BIT() is not defined
in the UAPI headers and its usage may cause userspace build errors.

Fixes: 742c45c3ec ("x86/elf: Enumerate kernel FSGSBASE capability in AT_HWCAP2")
Signed-off-by: Joe Richey <joerichey@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210521085849.37676-2-joerichey94@gmail.com
This commit is contained in:
Joe Richey 2021-05-21 01:58:42 -07:00 committed by Borislav Petkov
parent d07f6ca923
commit d06aca989c
1 changed files with 4 additions and 2 deletions
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6
arch/x86/include/uapi/asm/hwcap2.h
View File

@ -2,10 +2,12 @@
#ifndef _ASM_X86_HWCAP2_H
#define _ASM_X86_HWCAP2_H
#include <linux/const.h>
/* MONITOR/MWAIT enabled in Ring 3 */
#define HWCAP2_RING3MWAIT (1 << 0)
#define HWCAP2_RING3MWAIT _BITUL(0)
/* Kernel allows FSGSBASE instructions available in Ring 3 */
#define HWCAP2_FSGSBASE BIT(1)
#define HWCAP2_FSGSBASE _BITUL(1)
#endif