linux-kernel - [PATCH] kvm: x86: use a uapi-friendly macro for BIT

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Message-ID: <20231207001142.3617856-1-dionnaglaze@google.com>
Date:   Thu,  7 Dec 2023 00:11:32 +0000
From:   Dionna Glaze <dionnaglaze@...gle.com>
To:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org, x86@...nel.org,
        seanjc@...gle.com, pbonzini@...hat.com
Cc:     Dionna Glaze <dionnaglaze@...gle.com>
Subject: [PATCH] kvm: x86: use a uapi-friendly macro for BIT

Change uapi header uses of BIT to instead use the uapi/linux/const.h bit
macros, since BIT is not defined in uapi headers.

The PMU mask uses _BITUL since it targets a 32 bit flag field, whereas
the longmode definition is meant for a 64 bit flag field.

Cc: Sean Christophersen <seanjc@...gle.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>

Signed-off-by: Dionna Glaze <dionnaglaze@...gle.com>
---
 arch/x86/include/uapi/asm/kvm.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h
index 1a6a1f987949..a8955efeef09 100644
--- a/arch/x86/include/uapi/asm/kvm.h
+++ b/arch/x86/include/uapi/asm/kvm.h
@@ -7,6 +7,7 @@
  *
  */
 
+#include <linux/const.h>
 #include <linux/types.h>
 #include <linux/ioctl.h>
 #include <linux/stddef.h>
@@ -526,7 +527,7 @@ struct kvm_pmu_event_filter {
 #define KVM_PMU_EVENT_ALLOW 0
 #define KVM_PMU_EVENT_DENY 1
 
-#define KVM_PMU_EVENT_FLAG_MASKED_EVENTS BIT(0)
+#define KVM_PMU_EVENT_FLAG_MASKED_EVENTS _BITUL(0)
 #define KVM_PMU_EVENT_FLAGS_VALID_MASK (KVM_PMU_EVENT_FLAG_MASKED_EVENTS)
 
 /*
@@ -560,6 +561,6 @@ struct kvm_pmu_event_filter {
 #define   KVM_VCPU_TSC_OFFSET 0 /* attribute for the TSC offset */
 
 /* x86-specific KVM_EXIT_HYPERCALL flags. */
-#define KVM_EXIT_HYPERCALL_LONG_MODE	BIT(0)
+#define KVM_EXIT_HYPERCALL_LONG_MODE	_BITULL(0)
 
 #endif /* _ASM_X86_KVM_H */
-- 
2.43.0.rc2.451.g8631bc7472-goog