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[83.54.181.252]) by smtp.gmail.com with ESMTPSA id d6sm13301079wrx.60.2021.11.14.23.08.11 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 14 Nov 2021 23:08:12 -0800 (PST) From: Sergio Paracuellos To: linux-pci@vger.kernel.org Cc: linux-mips@vger.kernel.org, tsbogend@alpha.franken.de, john@phrozen.org, lorenzo.pieralisi@arm.com, bhelgaas@google.com, arnd@arndb.de, linux-kernel@vger.kernel.org Subject: [PATCH 1/5] PCI: let 'pcibios_root_bridge_prepare()' access to 'bridge->windows' Date: Mon, 15 Nov 2021 08:08:05 +0100 Message-Id: <20211115070809.15529-2-sergio.paracuellos@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211115070809.15529-1-sergio.paracuellos@gmail.com> References: <20211115070809.15529-1-sergio.paracuellos@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org When function 'pci_register_host_bridge()' is called, 'bridge->windows' are already available. However this windows are being moved temporarily from there. To let 'pcibios_root_bridge_prepare()' to have access to this windows move this windows movement after call this function. This is interesting for MIPS ralink mt7621 platform to be able to properly set I/O coherence units with this information and avoid custom MIPs code in generic PCIe controller drivers. Signed-off-by: Sergio Paracuellos Acked-by: Arnd Bergmann --- drivers/pci/probe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 087d3658f75c..372a70efccc6 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -898,8 +898,6 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge) bridge->bus = bus; - /* Temporarily move resources off the list */ - list_splice_init(&bridge->windows, &resources); bus->sysdata = bridge->sysdata; bus->ops = bridge->ops; bus->number = bus->busn_res.start = bridge->busnr; @@ -925,6 +923,8 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge) if (err) goto free; + /* Temporarily move resources off the list */ + list_splice_init(&bridge->windows, &resources); err = device_add(&bridge->dev); if (err) { put_device(&bridge->dev);