[PATCH v2 1/7] x86/elf: Use _BITUL() macro in UAPI headers
Joe Richey
joerichey94 at gmail.com
Fri May 21 01:58:42 PDT 2021
From: Joe Richey <joerichey at google.com>
Replace BIT() in x86's UPAI header with _BITUL(). BIT() is not defined
in the UAPI headers and its usage may cause userspace build errors.
Fixes: 742c45c3ecc9 ("x86/elf: Enumerate kernel FSGSBASE capability in AT_HWCAP2")
Signed-off-by: Joe Richey <joerichey at google.com>
---
arch/x86/include/uapi/asm/hwcap2.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/uapi/asm/hwcap2.h b/arch/x86/include/uapi/asm/hwcap2.h
index 5fdfcb47000f..054604aba9f0 100644
--- a/arch/x86/include/uapi/asm/hwcap2.h
+++ b/arch/x86/include/uapi/asm/hwcap2.h
@@ -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
--
2.31.1
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