From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) (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 BC2C64A6FE6 for ; Thu, 6 Aug 2026 23:37:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786059425; cv=none; b=NSDTitHDQSx3Y15AqGvgDaLpYEckCxyQb7ei2GFPpm6IMPCuOqeqvNNNLf5U7jasonQTDXg4KTYnXt5Srk/TED7HrKcn6I/5f+m2uSuU0PL46H6kbdQem2CcL8wkD/yxH/r7Q3OBRNZ7OHTf9zK4h9qzvvjkmZWJ9h5zemdmu2U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786059425; c=relaxed/simple; bh=s2/ZfVS2+K2HvwEjsbelciYdB6FNpWUiBJfvQma4wVg=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=nzNerjfEHQjAM0K4s4dFEGeU27jF+RO9KSfKre3T+yXPj2Gd8xlnv6Z6hHAwdfqpB/5bxjaAFEVOqAgqdlzVfBbPjvTecUbGQnWs6+WOq8XVsRuY3xKviwO79C2m6b8OW882cjdXY6d0d5Kny5Xp2HeRZNOmqZbxe94jCp7J7vc= 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=MFARviB4; arc=none smtp.client-ip=209.85.210.199 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="MFARviB4" Received: by mail-pf1-f199.google.com with SMTP id d2e1a72fcca58-84842381150so4349303b3a.3 for ; Thu, 06 Aug 2026 16:37:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1786059422; x=1786664222; 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=3J0zUIaWZrZleLZttsrL9ykC8Y4xnIiv8MkXpJdWFpw=; b=MFARviB4NSkQlmEDR+PggBKrwuQU9TBBlB64jMxPV7kin7LpyuVI7HkmeTXN5UJ8nO mVwizoB6Yd7A+Y7I13Yvrb/3RmqvmPJzolC00hxP/idDfEZJzmkM5UM477TJ/i/1NEbY KoTqVL6W726H/WQhbuJd7JpPkx1OhQqCZcH3rLsygoExiR4eDBvD8+zOf3N6FhjNK2jr nwktuiUunKkHS0a2duejvvNhPjbuEIUC1C14dS+2fNoVt+dpbNEpMahkqjhY5lIFqXig E7lPtSF/i0fGGVVB1HHnwa3dFt/Jza6jljS76QOD8TgdGs2yTVqjBqjAlZeGGiKxhIgr kJ4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786059422; x=1786664222; 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=3J0zUIaWZrZleLZttsrL9ykC8Y4xnIiv8MkXpJdWFpw=; b=TOoV0FrRPrKn14Jq0J7vtNzLHgWjj5GwHLAK53Vh5YSLAyWAriv3Oje1K6WAY0MnZa +BBrk6LZbfuceAhbT6LcCNOgHYu0DreXSaIEFRbWSZACjqWcqVdQzesopPL4hUx6qQfq ClB3WRbNbVLrNRUQX9ZXY4xmDOTHRGyEzvcAAWb4gaWTEURt+rUp/CWVfCibXOKPEcbh G1wrTXM45kXByjBBHnYVOMrfBAEYTuCeydoSgDqZdjkneJp4ULZ/JPGm7VT/lVNzsqoq Gm4MJf0RkjGvsVQaVbiTOj1CcyyoCeho1CPJUt4AWd3F2/HHrX3J35B/JomlqEBfpkrT YErA== X-Forwarded-Encrypted: i=1; AHgh+RpLdkrgJyUyqIN9+DS1QwB3UbI1eyojN3w8VuAoRNPkrn7m9qAoWHTl+n09UH8jHX3kWjpZiltYLX/k1y0=@vger.kernel.org X-Gm-Message-State: AOJu0YxKWgtZPHohtU8Gz2tutvpYF2aWywpfoktVcmjRjB/m1+CxzCVO GIpSQbQu3xF/9LhRTec5gDiuEC6Jhr13TRqmV2dr5CT9aWOeyHzQ5y6OjS3JIZVxPfK8+QgeKlI fpKfjWw== X-Received: from pfbcz13.prod.google.com ([2002:aa7:930d:0:b0:848:2e05:6161]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:a58f:b0:848:3fe2:c88b with SMTP id d2e1a72fcca58-84f2dfc8fa4mr23126519b3a.6.1786059421552; Thu, 06 Aug 2026 16:37:01 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 6 Aug 2026 16:35:47 -0700 In-Reply-To: <20260806233609.212337-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20260806233609.212337-31-seanjc@google.com> Subject: [PATCH v6 30/51] x86/paravirt: Remove unnecessary PARAVIRT=n stub for paravirt_set_sched_clock() 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" Remove the unnecessary paravirt_set_sched_clock() stub for PARAVIRT=n, as all callers are gated by PARAVIRT=y. Eliminating the stub will avoid a pile of pointless churn as the "real" implementation evolves. No functional change intended. Fixes: 39965afb1151 ("x86/paravirt: Move paravirt_sched_clock() related code into tsc.c") Reviewed-by: David Woodhouse Signed-off-by: Sean Christopherson --- arch/x86/include/asm/timer.h | 3 +++ arch/x86/kernel/tsc.c | 1 - 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h index fda18bcb19b4..c71b466d6ace 100644 --- a/arch/x86/include/asm/timer.h +++ b/arch/x86/include/asm/timer.h @@ -12,7 +12,10 @@ extern void recalibrate_cpu_khz(void); extern int no_timer_check; extern bool using_native_sched_clock(void); + +#ifdef CONFIG_PARAVIRT void paravirt_set_sched_clock(u64 (*func)(void)); +#endif /* * We use the full linear equation: f(x) = a + b*x, in order to allow diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 4c5328d19ebe..e0bea58b6658 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -288,7 +288,6 @@ void paravirt_set_sched_clock(u64 (*func)(void)) u64 sched_clock_noinstr(void) __attribute__((alias("native_sched_clock"))); bool using_native_sched_clock(void) { return true; } -void paravirt_set_sched_clock(u64 (*func)(void)) { } #endif notrace u64 sched_clock(void) -- 2.55.0.679.g6767b8d81c-goog