From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C59D632A3D1 for ; Fri, 14 Nov 2025 15:04:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763132667; cv=none; b=qG+tlPqsIr6kn7XXaniNeB/n7Id936RB3+Y76yvMIgb+EZHY4dhfEP2auvRcJC9i7bTT2geEPIIE94shX76D30YUyRyKNAT93hMIaDpMT2kvipGl6KEP9PpfPvqZFxmV/pmrY1TsJmKCd1ueSq5a/LRatxTDfLRBwD5M5KuWXIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763132667; c=relaxed/simple; bh=F/NVns0WXfkje7SrWm8dD/gRDhkjUjgk+tcFuXTTheg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X4qA1p+ZfQRYxCCzGxRBUriBkK71vf5K9Dq6FAQAgZ8JaDIGzaVoGa5HrvMlDanv1KfIUeXWic2fnXOrNguW0uuzb9UwIvH2tPERuXeK1PdAmEaaL1PvgZykTp0uw+vX5sE9Iy8FVtgvMMwssi5smy1SIJ4zz5pp5VkQ3qZIkQA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Txug1u5+; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Txug1u5+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1763132665; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=2oVSattGET5cairz4pLrVIWMCsCMvZMhD6IO+zCvSIQ=; b=Txug1u5+Lgf+8p2+NVWbGNP+CCqePxEz9JpVu5Qmqbu+LMKAzE+Djn0VtvRhpLGx/tV/rT zMUf8VZ0IY+10Nv68Qmz8PPQbGS68sXC4NEr/hUhJTGtdOE8qUE2ZIak6v5vyQhCG5NwCF XRojeWQywkH0Ao/9567BNMngtfVNOSg= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-417-hJJuaX7AOP2PLODmDdPtew-1; Fri, 14 Nov 2025 10:04:23 -0500 X-MC-Unique: hJJuaX7AOP2PLODmDdPtew-1 X-Mimecast-MFC-AGG-ID: hJJuaX7AOP2PLODmDdPtew_1763132659 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DAFDE1800342; Fri, 14 Nov 2025 15:04:18 +0000 (UTC) Received: from vschneid-thinkpadt14sgen2i.remote.csb (unknown [10.45.226.10]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 3F2E71956046; Fri, 14 Nov 2025 15:04:05 +0000 (UTC) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, rcu@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Josh Poimboeuf , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Arnaldo Carvalho de Melo , Paolo Bonzini , Arnd Bergmann , Frederic Weisbecker , "Paul E. McKenney" , Jason Baron , Steven Rostedt , Ard Biesheuvel , Sami Tolvanen , "David S. Miller" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Mel Gorman , Andrew Morton , Masahiro Yamada , Han Shen , Rik van Riel , Jann Horn , Dan Carpenter , Oleg Nesterov , Juri Lelli , Clark Williams , Yair Podemsky , Marcelo Tosatti , Daniel Wagner , Petr Tesarik , Shrikanth Hegde Subject: [PATCH v7 08/31] x86/idle: Mark x86_idle static call as __ro_after_init Date: Fri, 14 Nov 2025 16:01:10 +0100 Message-ID: <20251114150133.1056710-9-vschneid@redhat.com> In-Reply-To: <20251114150133.1056710-1-vschneid@redhat.com> References: <20251114150133.1056710-1-vschneid@redhat.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Later commits will cause objtool to warn about static calls being used in .noinstr sections in order to safely defer instruction patching IPIs targeted at NOHZ_FULL CPUs. x86_idle is updated in: o xen_set_default_idle() <- __init xen_arch_setup() o __init select_idle_routine() IOW purely init context, and can thus be marked as __ro_after_init. Reported-by: Josh Poimboeuf Signed-off-by: Valentin Schneider --- arch/x86/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 4c718f8adc592..4f0c1868d43d9 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -771,7 +771,7 @@ void __cpuidle default_idle(void) EXPORT_SYMBOL(default_idle); #endif -DEFINE_STATIC_CALL_NULL(x86_idle, default_idle); +DEFINE_STATIC_CALL_NULL_RO(x86_idle, default_idle); static bool x86_idle_set(void) { -- 2.51.0