From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f197.google.com (mail-pl1-f197.google.com [209.85.214.197]) (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 486414ACCC6 for ; Thu, 6 Aug 2026 23:37:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786059443; cv=none; b=il2jK19XQNiAWkFmWYgwTvvu0x/fQPY119RJfTIwILcI54Xeqm1JD+Z/7o6n3EpzQAtpjG+MKB4ZDVIV/CfvS0u+3XcC1uKDRq6ERB4dF/BvnUMjqUOP/ayJguzyKLHEdSBAX6nrcLEnEaGVnIn34FSVleUNA045WUi6JMlOGsQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786059443; c=relaxed/simple; bh=XkhFva8JyfvpNMGgTzJPYMHmon5wSx833A7LghpVEEU=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=EbuRix4euUjJoV0XIIkuszy/8KimO9FKYYyDnY6QPSg7rwA6f3ZVj+0LSU8bV9iU+UGOSEwrljqpb3T2RFYZfFjSLEVw0Y9OH40US9M2GH8aFAT53Eq3cnVr318IVOZMZm9NcbpjHjmUgPPwyGC8fe1qeB7c3+8dSutbokNp4e8= 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=XaOPF2K6; arc=none smtp.client-ip=209.85.214.197 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="XaOPF2K6" Received: by mail-pl1-f197.google.com with SMTP id d9443c01a7336-2cfca8558d2so38193275ad.2 for ; Thu, 06 Aug 2026 16:37:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1786059440; x=1786664240; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:reply-to:from:to:cc:subject:date:message-id :reply-to:content-type; bh=ITopxW07/FQizEWlsu5JVYhKtG4YNcRGYaSiNeAs44w=; b=XaOPF2K6dOx5NT278f3+mfmwrTm8tjgKyxGpYJF0JvVG+RXB4modnZN6zHenUKycVl ShrqgnXzrxe/RR0qMVYstahSJ46k/sTl2KL7BI4A+vGnh23qWHSQ8Z1ZDSEgt9L2uecB EydA9AL6Kib3nnSYJVXwK6dBI7ilcAvC99yR4cMDvW4d6W2buGGiQn6YNnVSA1w5skG6 ZX0FDi6L2ttzYFFL+WjRVkxA2BU3Qc9qVQF+1sfr+BGT/v/gAO/So2CQZEbgyrTwbNmq OhtuKowu02T9UsTZwUPRxuGPSV1POKuBQM3sF+eC4N067xPPSfxezvfIFHORUAGgxxRb QSEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786059440; x=1786664240; h=content-type: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:content-type; bh=ITopxW07/FQizEWlsu5JVYhKtG4YNcRGYaSiNeAs44w=; b=ardJ0rsVoyppZJs6MyrfZN+6/p0uXpXGipMy4e6EqoXIc0RgWm3s/reezXsvX6/vOa pm+pE8zEDruSLQiVmqVJqEnbArhjmTAeH51DV84jBpHbzTBMiTx892jwF4sPxFyy2HAl VEGe1pPFp5s7ICnnFEZsS8Qgs3AMwF0iYG5CH9nOyLevKfhdTP5aQ95t8SgtdI/Cts66 kOJi/ihW7warAUap8nNhIhcQ5JmRvoeDQESBxwTUIYEQnA/cLcl9OHcflTRJITK2wKHo l4gnQD0U9Qo4/oDrvcL7JfKnt4Md+yUnk+E5VVMtZ/aAgLwRmWU4bIGSIs/TFUwMNVuk Dnnw== X-Forwarded-Encrypted: i=1; AHgh+Rru2+lnf7Yn6ZVebYnhuRnHkB+lXG0OWgkUqLRzk1wUTY2bcb/L53VMr0cQoG9YW9l4Y4w=@vger.kernel.org X-Gm-Message-State: AOJu0YyFotLeF2NzVml2SLbPGi9QKlEppOtz2nH6p/eiARRzuIVPH8WA iY9S1BY/KDOz5+YeSGRlmIVpvyJu2qROQwM67swQiOM8w8QPAQDQN+Au1vZwqyfEGB+blcHhKiw 1QMgdJw== X-Received: from pljs12.prod.google.com ([2002:a17:903:3bac:b0:2ca:e163:e0c8]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:41ce:b0:2cf:afa5:b19a with SMTP id d9443c01a7336-2d0ca7f8e9amr186517945ad.11.1786059440120; Thu, 06 Aug 2026 16:37:20 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 6 Aug 2026 16:36:02 -0700 In-Reply-To: <20260806233609.212337-1-seanjc@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260806233609.212337-1-seanjc@google.com> X-Mailer: git-send-email 2.55.0.679.g6767b8d81c-goog Message-ID: <20260806233609.212337-46-seanjc@google.com> Subject: [PATCH v6 45/51] x86/paravirt: Mark __paravirt_set_sched_clock() as __init From: Sean Christopherson To: Kiryl Shutsemau , Rick Edgecombe , Sean Christopherson , Paolo Bonzini , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Ajay Kaher , Alexey Makhalov , Jan Kiszka , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Juergen Gross , Daniel Lezcano , Thomas Gleixner , John Stultz Cc: Vitaly Kuznetsov , Broadcom internal kernel review list , Boris Ostrovsky , Stephen Boyd , Miroslav Lichvar , x86@kernel.org, linux-coco@lists.linux.dev, kvm@vger.kernel.org, linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, Michael Kelley , Tom Lendacky , Nikunj A Dadhania , David Woodhouse , David Woodhouse , 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 d4f7cb127235..363145c83919 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(); -- 2.55.0.679.g6767b8d81c-goog