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From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org,
	virtualization@lists.linux.dev
Cc: Juergen Gross <jgross@suse.com>,
	Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Ajay Kaher <ajay.kaher@broadcom.com>,
	Alexey Makhalov <alexey.makhalov@broadcom.com>,
	Broadcom internal kernel review list
	<bcm-kernel-feedback-list@broadcom.com>
Subject: [PATCH v2 03/13] x86/msr: Remove rdmsr_safe()
Date: Wed, 19 Aug 2026 12:23:04 +0200	[thread overview]
Message-ID: <20260819102314.1499258-4-jgross@suse.com> (raw)
In-Reply-To: <20260819102314.1499258-1-jgross@suse.com>

rdmsr_safe() has no users left. Delete it.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 arch/x86/include/asm/msr.h      | 10 ----------
 arch/x86/include/asm/paravirt.h | 10 ----------
 2 files changed, 20 deletions(-)

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 6fb7125608c7..776a2daa2ba2 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -205,16 +205,6 @@ static inline int wrmsrq_safe(u32 msr, u64 val)
 	return native_write_msr_safe(msr, val);
 }
 
-/* rdmsr with exception handling */
-#define rdmsr_safe(msr, low, high)				\
-({								\
-	u64 __val;						\
-	int __err = native_read_msr_safe((msr), &__val);	\
-	(*low) = (u32)__val;					\
-	(*high) = (u32)(__val >> 32);				\
-	__err;							\
-})
-
 static inline int rdmsrq_safe(u32 msr, u64 *p)
 {
 	return native_read_msr_safe(msr, p);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 0591aa38fd85..97b082095572 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -177,16 +177,6 @@ static inline int wrmsrq_safe(u32 msr, u64 val)
 	return paravirt_write_msr_safe(msr, val);
 }
 
-/* rdmsr with exception handling */
-#define rdmsr_safe(msr, a, b)				\
-({							\
-	u64 _l;						\
-	int _err = paravirt_read_msr_safe((msr), &_l);	\
-	(*a) = (u32)_l;					\
-	(*b) = (u32)(_l >> 32);				\
-	_err;						\
-})
-
 static __always_inline int rdmsrq_safe(u32 msr, u64 *p)
 {
 	return paravirt_read_msr_safe(msr, p);
-- 
2.55.0


  parent reply	other threads:[~2026-08-19 10:23 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-19 10:23 [PATCH v2 00/13] x86/msr: Drop 32-bit MSR interfaces Juergen Gross
2026-08-19 10:23 ` Juergen Gross
2026-08-19 10:23 ` [PATCH v2 01/13] x86/cpu: Fix coding style violation Juergen Gross
2026-08-19 10:23 ` [PATCH v2 02/13] x86/msr: Remove wrmsr_safe() Juergen Gross
2026-08-19 10:23 ` Juergen Gross [this message]
2026-08-19 10:23 ` [PATCH v2 04/13] drivers/ata: Stop using 32-bit MSR interfaces Juergen Gross
2026-08-19 13:40   ` David Laight
2026-08-19 10:23 ` [PATCH v2 05/13] agp/nvidia: " Juergen Gross
2026-08-19 10:23 ` [PATCH v2 06/13] fbdev/geode: " Juergen Gross
2026-08-19 10:23 ` [PATCH v2 07/13] hw_random/via-rng: " Juergen Gross
2026-08-19 10:23 ` [PATCH v2 08/13] drivers/gpio: " Juergen Gross
2026-08-19 10:23 ` [PATCH v2 09/13] drivers/misc: " Juergen Gross
2026-08-19 10:23 ` [PATCH v2 10/13] x86/msr: Remove wrmsr() Juergen Gross
2026-08-19 10:23 ` [PATCH v2 11/13] x86/msr: Remove rdmsr() Juergen Gross
2026-08-19 10:23 ` [PATCH v2 12/13] treewide: convert rdmsrq() from a macro to an inline function Juergen Gross
2026-08-19 10:23   ` Juergen Gross
2026-08-19 10:44   ` sashiko-bot
2026-08-19 10:23 ` [PATCH v2 13/13] x86/msr: Simplify some rdmsrq() use cases Juergen Gross
2026-08-19 10:41   ` sashiko-bot
2026-08-19 14:40 ` [PATCH v2 00/13] x86/msr: Drop 32-bit MSR interfaces Dave Hansen
2026-08-19 14:40   ` Dave Hansen

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