From: Lukas Wunner <lukas@wunner.de>
To: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
Oliver O'Halloran <oohall@gmail.com>,
Will Deacon <will@kernel.org>,
Lorenzo Pieralisi <lpieralisi@kernel.org>,
Krzysztof Wilczy??ski <kwilczynski@kernel.org>,
Manivannan Sadhasivam <mani@kernel.org>,
Rob Herring <robh@kernel.org>, Heiko Stuebner <heiko@sntech.de>,
Philipp Zabel <p.zabel@pengutronix.de>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org,
linux-rockchip@lists.infradead.org,
Niklas Cassel <cassel@kernel.org>,
Wilfred Mallawa <wilfred.mallawa@wdc.com>,
Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Subject: Re: [PATCH v5 1/4] PCI/ERR: Add support for resetting the Root Ports in a platform specific way
Date: Tue, 15 Jul 2025 10:16:27 +0200 [thread overview]
Message-ID: <aHYOW3P0wvHo5a1j@wunner.de> (raw)
In-Reply-To: <20250715-pci-port-reset-v5-1-26a5d278db40@oss.qualcomm.com>
On Tue, Jul 15, 2025 at 01:29:18PM +0530, Manivannan Sadhasivam wrote:
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -4964,7 +4964,19 @@ void pci_reset_secondary_bus(struct pci_dev *dev)
>
> void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
> {
> + struct pci_host_bridge *host = pci_find_host_bridge(dev->bus);
> + int ret;
> +
> + if (host->reset_root_port) {
> + ret = host->reset_root_port(host, dev);
> + if (ret)
> + pci_err(dev, "Failed to reset Root Port: %d\n", ret);
> +
> + return;
> + }
> +
There used to be a pci_is_root_bus() check here:
https://lore.kernel.org/r/20250524185304.26698-2-manivannan.sadhasivam@linaro.org/
Thanks,
Lukas
next prev parent reply other threads:[~2025-07-15 8:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-15 7:59 [PATCH v5 0/4] PCI: Add support for resetting the Root Ports in a platform specific way Manivannan Sadhasivam
2025-07-15 7:59 ` [PATCH v5 1/4] PCI/ERR: " Manivannan Sadhasivam
2025-07-15 8:16 ` Lukas Wunner [this message]
2025-07-15 9:19 ` Manivannan Sadhasivam
2025-07-15 7:59 ` [PATCH v5 2/4] PCI: host-common: Add link down handling for Root Ports Manivannan Sadhasivam
2025-07-15 22:06 ` kernel test robot
2025-07-15 7:59 ` [PATCH v5 3/4] PCI: qcom: Add support for resetting the Root Port due to link down event Manivannan Sadhasivam
2025-07-15 7:59 ` [PATCH v5 4/4] PCI: dw-rockchip: Add support to reset Root Port upon " Manivannan Sadhasivam
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