From nobody Thu Apr 9 12:54:02 2026 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B8C0A26B742; Mon, 9 Mar 2026 05:00:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773032423; cv=none; b=Tfs9A0Xxy4cjoH7UrSz1i0F1L1gMWvL8reAtA69c7syK31/EHMKEyWS0iFCS6pV35RPD8g9akhAjjPVP7fEifbuZM1TybXSDrRyyCrxf3JEoGRn3BT7AmKpGTyyVmX+ttiSNjYOHjBSkEaopMhKmawcDbvc55Gy9AZKNf5AOmCI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773032423; c=relaxed/simple; bh=ayCgtB9zMgsE+W33btw4vHTnJ+BwPYF1bU5rNqi5RG0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=uXiRebX9Sw7f3AVb6WR3R4z/t51oBfx67cyEhE9Wt9UqMXfOajRmxloLPFYESWZFDdiDVsx731s7iIFg3Cb5aVMNYgyKpk6ZiQzPVsxD7Wf/2HTrxjdpJHw1nX0tRP7kBchKHX13Vlx1Vf/UIDTwp3VLLmbMZAHb0Q/7HpEcuAE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BB5B91650; Sun, 8 Mar 2026 22:00:13 -0700 (PDT) Received: from u200865.usa.arm.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CC9153F7BD; Sun, 8 Mar 2026 22:00:19 -0700 (PDT) From: Jeremy Linton To: linux-pci@vger.kernel.org Cc: herve.codina@bootlin.com, bhelgaas@google.com, linux-kernel@vger.kernel.org, Jeremy Linton Subject: [PATCH] PCI: of: Reduce severity of missing of_root error message Date: Sun, 8 Mar 2026 23:59:30 -0500 Message-ID: <20260309045930.21531-1-jeremy.linton@arm.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Arm64 kernels are frequently built dual ACPI/DT, and then boot in ACPI mode. In this case, there won't be an of_root, except for rare DT described PCIe boards. As a result, users in the common case see this high priority worrying message, despite the machine working as expected. Reduce this message to pr_debug() to avoid unnecessary noise. Signed-off-by: Jeremy Linton --- drivers/pci/of.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/of.c b/drivers/pci/of.c index 3579265f1198..4115017f4139 100644 --- a/drivers/pci/of.c +++ b/drivers/pci/of.c @@ -775,7 +775,7 @@ void of_pci_make_host_bridge_node(struct pci_host_bridg= e *bridge) =20 /* Check if there is a DT root node to attach the created node */ if (!of_root) { - pr_err("of_root node is NULL, cannot create PCI host bridge node\n"); + pr_debug("of_root node is NULL, cannot create PCI host bridge node\n"); return; } =20 --=20 2.53.0