[PATCH v2 1/7] x86/elf: Use _BITUL() macro in UAPI headers

From
Joe Richey <hidden>
Date
2021-05-21 08:59:26
Also in
kvm, linux-media, lkml
Reply to
Joe Richey, 2021-05-21
From: Joe Richey <redacted>

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 <redacted>
---
 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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Thread (31 messages) 31 messages, 9 authors, last reply 2021-05-24
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