From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8046042B323 for ; Wed, 1 Jul 2026 19:33:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782934405; cv=none; b=Mj426+mjShkVgkZ+fdfH21jivxhwJFzs42lBfcmjQtgmBmZBq3XQ+rgLOxjnASXlO3Xuip8SiPqrAWZCLNxmAm6K4+O81tDrkjaTVodDB+U78G1JGSqp+AQVtUN4on5MDEsfDg510UWToRClvlSVP6as47WJIzvoPZpSCi2o3uY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782934405; c=relaxed/simple; bh=UExHFmJ65vTRSuxY6XqQx736Zu2Yk6LZG1h2YXf36Dc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=BneLqgWm9WXi4P+l1y/nAzdRjSbEWIsMKR2J3yUFMq3bekREOU1czDT8hrYQrSZU2FHnYaB2JpQGAwLIYQk89G5I1n8Hr5qTdyCRid/DfmtPgx9sjBKFTrgrs5Mo5M9OQWPGw6ZfFks5qAO2UxZ5I9BD0HcDyUWK/8voQ7dWGZU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=tYeK7jVr; arc=none smtp.client-ip=209.85.214.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="tYeK7jVr" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-2c9b1b608e2so14575635ad.3 for ; Wed, 01 Jul 2026 12:33:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1782934402; x=1783539202; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=Z1gCn97n2OaQgcF7BGVq6zaJwKJkpkAfWBIFdTpXq3s=; b=tYeK7jVr9pte1MjlrhhuhdAOMYT93kUFcQW3zUg6ggB8NhFyZa5dV4BnqLumk/00TC HayvniQdI5OCkhm9Qgx/zaF1gAQJLIs58EX+hNAgZXaLW8OsVB9d3djooUz3rtJE/Egt cAQBxko4rv8z2LYlBJz9N/Xb7lrLbtLfpUJQmy30UK3xlpQx2l6qnsq6XoNHi1lnz9jZ C2QvzYkT/KC0GZ4pGiDQ+03EbS9y4b9sLphEVaf3ZtYpk3rB6wQTQQ4tnGyEvGJVbmLm kLHp4uojtiJjjSQozBzmUiBJXPZu7Xcbeuc4OFUZ5kSPYW+YeaM1FLQd18ayKQhrgfcQ 3O7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782934402; x=1783539202; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Z1gCn97n2OaQgcF7BGVq6zaJwKJkpkAfWBIFdTpXq3s=; b=SorzvcG5x2X2D7ubgELY+1bCmFpLS6VjRf/DqGU16VOXTAsXsSs2KG96g587ybY/6F yLxlTpYCkp5C2foxFvzeP0YwvA9bdClXLDghJ2q8230kihT+/UmUlY0WOyKX27Au2krw ExigpY/twKhg88M6+E7aU6kOOikMx61VwcysYma2fdA1YrJeK8NXCJxULqrgLzcI1PrG OFU9R2EMFHoUK8M3G7qKm8fZz4F2FaekzqJZ5Qc6fIbfyURgcHJuyXAH6zBI/OvGc2Ev gWafznZ9ERWKMibTjAIP1qKdtKT0L5Qdy0tm9FBS+NBeLONHrHTHGTwCYjTH07aREen1 7Rwg== X-Forwarded-Encrypted: i=1; AHgh+Rp9riZfMUUUj8/9myPf80Pk8WR9dIZwEOvuhCsoNs0lg8RJH+MxeKnswFK678wgkhEjl3shkdq/If4=@vger.kernel.org X-Gm-Message-State: AOJu0YzVzefxmXULkkshM1aGwXYPPSr2dnCrplHtU5aVqUSgMgCpr9Qb boZF4ChKrua2TLeFnSXXzfZkhwA5i8NNj3k5LXTJGLwBSQADNyDz3aN1Ww45nNOBIswVYfT/W6n JYq7z1A== X-Received: from plgo7.prod.google.com ([2002:a17:902:d4c7:b0:2c0:b770:dcd7]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:1245:b0:2c9:fd62:a709 with SMTP id d9443c01a7336-2ca7e6838d3mr33515195ad.10.1782934401463; Wed, 01 Jul 2026 12:33:21 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 1 Jul 2026 12:32:06 -0700 In-Reply-To: <20260701193212.749551-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260701193212.749551-1-seanjc@google.com> X-Mailer: git-send-email 2.55.0.rc0.799.gd6f94ed593-goog Message-ID: <20260701193212.749551-46-seanjc@google.com> Subject: [PATCH v5 45/51] x86/paravirt: Mark __paravirt_set_sched_clock() as __init From: Sean Christopherson To: Jonathan Corbet , Paolo Bonzini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Kiryl Shutsemau , Rick Edgecombe , Sean Christopherson , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Ajay Kaher , Alexey Makhalov , Jan Kiszka , Andy Lutomirski , Peter Zijlstra , Juergen Gross , Daniel Lezcano , John Stultz Cc: Shuah Khan , "H. Peter Anvin" , Vitaly Kuznetsov , Broadcom internal kernel review list , Boris Ostrovsky , Stephen Boyd , linux-doc@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev, linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, Tom Lendacky , Nikunj A Dadhania , David Woodhouse , David Woodhouse , Michael Kelley , Thomas Gleixner Content-Type: text/plain; charset="UTF-8" Annotate __paravirt_set_sched_clock() as __init, and make its wrapper __always_inline to ensure sanitizers don't result in a non-inline version hanging around. All callers run during __init, and changing sched_clock after boot would be all kinds of crazy. No functional change intended. Reviewed-by: David Woodhouse Signed-off-by: Sean Christopherson --- arch/x86/include/asm/timer.h | 10 +++++----- arch/x86/kernel/tsc.c | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h index e97cd1ae03d1..96ae7feac47c 100644 --- a/arch/x86/include/asm/timer.h +++ b/arch/x86/include/asm/timer.h @@ -14,12 +14,12 @@ extern int no_timer_check; extern bool using_native_sched_clock(void); #ifdef CONFIG_PARAVIRT -void __paravirt_set_sched_clock(u64 (*func)(void), bool stable, - void (*save)(void), void (*restore)(void)); +void __init __paravirt_set_sched_clock(u64 (*func)(void), bool stable, + void (*save)(void), void (*restore)(void)); -static inline void paravirt_set_sched_clock(u64 (*func)(void), - void (*save)(void), - void (*restore)(void)) +static __always_inline void paravirt_set_sched_clock(u64 (*func)(void), + void (*save)(void), + void (*restore)(void)) { __paravirt_set_sched_clock(func, true, save, restore); } diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 83353d643150..0f92b29adecc 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -280,8 +280,8 @@ bool using_native_sched_clock(void) return static_call_query(pv_sched_clock) == native_sched_clock; } -void __paravirt_set_sched_clock(u64 (*func)(void), bool stable, - void (*save)(void), void (*restore)(void)) +void __init __paravirt_set_sched_clock(u64 (*func)(void), bool stable, + void (*save)(void), void (*restore)(void)) { if (!stable) clear_sched_clock_stable(); -- 2.55.0.rc0.799.gd6f94ed593-goog