From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 62C00646; Tue, 3 Dec 2024 15:18:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733239097; cv=none; b=dj117S/gEodDwtRsX6v23rRugU9HyWnbrqkcCh1Yw9eOQwccnu0XvM30NlARV6Djh/We4+fZdCAATU+m5vGdxz/UeSQHRfAtedC0Ln4VnnE+FtfE7PIjvx3zKN2W0qCuhIgQ5GvEJ6xPU1qiVOHl0+P3u9OpcD27odbN7js4TPw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733239097; c=relaxed/simple; bh=/a+p0kB74e5P4KezyJErXtX9fjbuQBX8e7Bo3sG4UJc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OLulfo1De07XLu671TEwKdn4AS7Kvg6PJhs0rrAsHvQzDGSMEHwWgIBOQ/W3h3VcCs3R0SCD6xnA1Nj9kcYiP2yVqEQShn4AwMF6hdl0HGsjoulXsH84VClvndKBiyoXvuoubdJurQJPrQt6Gt7E79KA6f0PUTdNBl0LZy10zXw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=NMykYWpO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="NMykYWpO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFEECC4CECF; Tue, 3 Dec 2024 15:18:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1733239097; bh=/a+p0kB74e5P4KezyJErXtX9fjbuQBX8e7Bo3sG4UJc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NMykYWpOwTJzwHi27DnG1cJqsNampJ81Tm9ULfKDH8iTvgmZbW7ZdniGLUsQa8esx uJnl1xAnD5xdN0LTR+pMl5RoES+b6UMRzxwUv6SC6eBcN3WYZfYTvuKM3AY53j9Lha lg/uf8sFBwV3gm8psmef61kN4aK5MccBwMq/RxGA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, weiyufeng , Bjorn Helgaas , Sasha Levin Subject: [PATCH 6.11 501/817] PCI: cpqphp: Use PCI_POSSIBLE_ERROR() to check config reads Date: Tue, 3 Dec 2024 15:41:13 +0100 Message-ID: <20241203144015.430419157@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241203143955.605130076@linuxfoundation.org> References: <20241203143955.605130076@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: weiyufeng [ Upstream commit 87d5403378cccc557af9e02a8a2c8587ad8b7e9a ] Use PCI_POSSIBLE_ERROR() to check the response we get when we read data from hardware. This unifies PCI error response checking and makes error checks consistent and easier to find. Link: https://lore.kernel.org/r/20240806065050.28725-1-412574090@163.com Signed-off-by: weiyufeng Signed-off-by: Bjorn Helgaas Stable-dep-of: e2226dbc4a49 ("PCI: cpqphp: Fix PCIBIOS_* return value confusion") Signed-off-by: Sasha Levin --- drivers/pci/hotplug/cpqphp_pci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c index e9f1fb333a718..718bc6cf12cb3 100644 --- a/drivers/pci/hotplug/cpqphp_pci.c +++ b/drivers/pci/hotplug/cpqphp_pci.c @@ -138,7 +138,7 @@ static int PCI_RefinedAccessConfig(struct pci_bus *bus, unsigned int devfn, u8 o if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, &vendID) == -1) return -1; - if (vendID == 0xffffffff) + if (PCI_POSSIBLE_ERROR(vendID)) return -1; return pci_bus_read_config_dword(bus, devfn, offset, value); } @@ -253,7 +253,7 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num *dev_num = tdevice; ctrl->pci_bus->number = tbus; pci_bus_read_config_dword(ctrl->pci_bus, *dev_num, PCI_VENDOR_ID, &work); - if (!nobridge || (work == 0xffffffff)) + if (!nobridge || PCI_POSSIBLE_ERROR(work)) return 0; dbg("bus_num %d devfn %d\n", *bus_num, *dev_num); -- 2.43.0