From: Pali Rohár pali@kernel.org
stable inclusion from stable-v5.10.83 commit aec0751f61f5097565820a0f0a546ae1a07f133e bugzilla: 185879 https://gitee.com/openeuler/kernel/issues/I4QUVG
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 454c53271fc11f3aa5e44e41fd99ca181bd32c62 upstream.
PCIe config space can be initialized also before pci_bridge_emul_init() call, so move rootcap initialization after PCI config space initialization.
This simplifies the function a little since it removes one if (ret < 0) check.
Link: https://lore.kernel.org/r/20211005180952.6812-11-kabel@kernel.org Signed-off-by: Pali Rohár pali@kernel.org Signed-off-by: Marek Behún kabel@kernel.org Signed-off-by: Lorenzo Pieralisi lorenzo.pieralisi@arm.com Reviewed-by: Marek Behún kabel@kernel.org Signed-off-by: Marek Behún kabel@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Chen Jun chenjun102@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/pci/controller/pci-aardvark.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index c81a811c75b8..45574b394571 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -999,7 +999,6 @@ static struct pci_bridge_emul_ops advk_pci_bridge_emul_ops = { static int advk_sw_pci_bridge_init(struct advk_pcie *pcie) { struct pci_bridge_emul *bridge = &pcie->bridge; - int ret;
bridge->conf.vendor = cpu_to_le16(advk_readl(pcie, PCIE_CORE_DEV_ID_REG) & 0xffff); @@ -1019,19 +1018,14 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie) /* Support interrupt A for MSI feature */ bridge->conf.intpin = PCIE_CORE_INT_A_ASSERT_ENABLE;
+ /* Indicates supports for Completion Retry Status */ + bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS); + bridge->has_pcie = true; bridge->data = pcie; bridge->ops = &advk_pci_bridge_emul_ops;
- /* PCIe config space can be initialized after pci_bridge_emul_init() */ - ret = pci_bridge_emul_init(bridge, 0); - if (ret < 0) - return ret; - - /* Indicates supports for Completion Retry Status */ - bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS); - - return 0; + return pci_bridge_emul_init(bridge, 0); }
static bool advk_pcie_valid_device(struct advk_pcie *pcie, struct pci_bus *bus,