linux-kernel - [PATCH] PCI: keystone: Fix build error while only CONFIG_PCI

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Date:   Fri, 19 Apr 2019 10:58:55 +0800
From:   Yue Haibing <yuehaibing@...wei.com>
To:     <lorenzo.pieralisi@....com>, <bhelgaas@...gle.com>,
        <kishon@...com>, <robh@...nel.org>, <l.stach@...gutronix.de>,
        <andrew.smirnov@...il.com>
CC:     <linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] PCI: keystone: Fix build error while only CONFIG_PCI_KEYSTONE is set

From: YueHaibing <yuehaibing@...wei.com>

During randconfig builds, I occasionally run into an invalid configuration

drivers/pci/controller/dwc/pci-keystone.o: In function `ks_pcie_link_up':
pci-keystone.c:(.text+0x90): undefined reference to `__dw_pcie_read_dbi'
pci-keystone.c:(.text+0x90): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__dw_pcie_read_dbi'
drivers/pci/controller/dwc/pci-keystone.o: In function `ks_pcie_v3_65_scan_bus':
pci-keystone.c:(.text+0x4f0): undefined reference to `__dw_pcie_write_dbi'
pci-keystone.c:(.text+0x4f0): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__dw_pcie_write_dbi'

while CONFIG_PCI_KEYSTONE is selected but CONFIG_PCIE_DW
is not set, the building failed like this. This patch
selects PCIE_DW to fix it.

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: 5709114f0a97 ("PCI: keystone: Add support for PCIe EP in AM654x Platforms")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/pci/controller/dwc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
index b450ad2..641fa0f 100644
--- a/drivers/pci/controller/dwc/Kconfig
+++ b/drivers/pci/controller/dwc/Kconfig
@@ -105,6 +105,7 @@ config PCIE_SPEAR13XX
 config PCI_KEYSTONE
 	bool "TI Keystone PCIe controller"
 	depends on ARCH_KEYSTONE || ARCH_K3 || ((ARM || ARM64) && COMPILE_TEST)
+	select PCIE_DW
 	help
 	  Say Y here if you want to enable PCI controller support on Keystone
 	  SoCs. The PCI controller on Keystone is based on DesignWare hardware
-- 
2.7.4