linux-kernel - [PATCH v2 03/10] PCI: designware-ep: Move the function of getting MSI capability forward

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Message-Id: <20190822112242.16309-3-xiaowei.bao@nxp.com>
Date:   Thu, 22 Aug 2019 19:22:35 +0800
From:   Xiaowei Bao <xiaowei.bao@....com>
To:     bhelgaas@...gle.com, robh+dt@...nel.org, mark.rutland@....com,
        shawnguo@...nel.org, leoyang.li@....com, kishon@...com,
        lorenzo.pieralisi@....co, arnd@...db.de,
        gregkh@...uxfoundation.org, minghuan.Lian@....com,
        mingkai.hu@....com, roy.zang@....com, jingoohan1@...il.com,
        gustavo.pimentel@...opsys.com, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linuxppc-dev@...ts.ozlabs.org, andrew.murray@....com
Cc:     Xiaowei Bao <xiaowei.bao@....com>
Subject: [PATCH v2 03/10] PCI: designware-ep: Move the function of getting MSI capability forward

Move the function of getting MSI capability to the front of init
function, because the init function of the EP platform driver will use
the return value by the function of getting MSI capability.

Signed-off-by: Xiaowei Bao <xiaowei.bao@....com>
---
v2:
 - No change.

 drivers/pci/controller/dwc/pcie-designware-ep.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index b8388f8..0a6c199 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -656,6 +656,10 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
 	if (ret < 0)
 		epc->max_functions = 1;
 
+	ep->msi_cap = dw_pcie_ep_find_capability(pci, PCI_CAP_ID_MSI);
+
+	ep->msix_cap = dw_pcie_ep_find_capability(pci, PCI_CAP_ID_MSIX);
+
 	if (ep->ops->ep_init)
 		ep->ops->ep_init(ep);
 
@@ -672,9 +676,6 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
 		dev_err(dev, "Failed to reserve memory for MSI/MSI-X\n");
 		return -ENOMEM;
 	}
-	ep->msi_cap = dw_pcie_ep_find_capability(pci, PCI_CAP_ID_MSI);
-
-	ep->msix_cap = dw_pcie_ep_find_capability(pci, PCI_CAP_ID_MSIX);
 
 	offset = dw_pcie_ep_find_ext_capability(pci, PCI_EXT_CAP_ID_REBAR);
 	if (offset) {
-- 
2.9.5