linux-kernel - [PATCH v2 21/38] x86/pvclock: Mark setup helpers and related various as __init/__ro_after

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Message-ID: <20250227021855.3257188-22-seanjc@google.com>
Date: Wed, 26 Feb 2025 18:18:37 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>, Paolo Bonzini <pbonzini@...hat.com>, 
	Sean Christopherson <seanjc@...gle.com>, Juergen Gross <jgross@...e.com>, 
	"K. Y. Srinivasan" <kys@...rosoft.com>, Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, 
	Dexuan Cui <decui@...rosoft.com>, Ajay Kaher <ajay.kaher@...adcom.com>, 
	Jan Kiszka <jan.kiszka@...mens.com>, Andy Lutomirski <luto@...nel.org>, 
	Peter Zijlstra <peterz@...radead.org>, Daniel Lezcano <daniel.lezcano@...aro.org>, 
	John Stultz <jstultz@...gle.com>
Cc: linux-kernel@...r.kernel.org, linux-coco@...ts.linux.dev, 
	kvm@...r.kernel.org, virtualization@...ts.linux.dev, 
	linux-hyperv@...r.kernel.org, xen-devel@...ts.xenproject.org, 
	Tom Lendacky <thomas.lendacky@....com>, Nikunj A Dadhania <nikunj@....com>
Subject: [PATCH v2 21/38] x86/pvclock: Mark setup helpers and related various
 as __init/__ro_after_init

Now that Xen PV clock and kvmclock explicitly do setup only during init,
tag the common PV clock flags/vsyscall variables and their mutators with
__init.

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 arch/x86/kernel/pvclock.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index b3f81379c2fc..a51adce67f92 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -16,10 +16,10 @@
 #include <asm/pvclock.h>
 #include <asm/vgtod.h>
 
-static u8 valid_flags __read_mostly = 0;
-static struct pvclock_vsyscall_time_info *pvti_cpu0_va __read_mostly;
+static u8 valid_flags __ro_after_init = 0;
+static struct pvclock_vsyscall_time_info *pvti_cpu0_va __ro_after_init;
 
-void pvclock_set_flags(u8 flags)
+void __init pvclock_set_flags(u8 flags)
 {
 	valid_flags = flags;
 }
@@ -153,7 +153,7 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock,
 	set_normalized_timespec64(ts, now.tv_sec, now.tv_nsec);
 }
 
-void pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti)
+void __init pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti)
 {
 	WARN_ON(vclock_was_used(VDSO_CLOCKMODE_PVCLOCK));
 	pvti_cpu0_va = pvti;
-- 
2.48.1.711.g2feabab25a-goog