linux-kernel - [PATCH] bcma: Prevent build of PCI host features in module

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Date:   Fri, 12 Jan 2018 14:25:18 +0000
From:   Matt Redfearn <matt.redfearn@...s.com>
To:     Rafał Miłecki <zajec5@...il.com>
CC:     <linux-wireless@...r.kernel.org>,
        Matt Redfearn <matt.redfearn@...s.com>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] bcma: Prevent build of PCI host features in module

Attempting to build bcma.ko with BCMA_DRIVER_PCI_HOSTMODE=y results in
a build error due to use of symbols not exported from vmlinux:

ERROR: "pcibios_enable_device" [drivers/bcma/bcma.ko] undefined!
ERROR: "register_pci_controller" [drivers/bcma/bcma.ko] undefined!
make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1

To prevent this, don't allow the host mode feature to be built if
CONFIG_BCMA=m

Signed-off-by: Matt Redfearn <matt.redfearn@...s.com>

---

 drivers/bcma/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig
index 02d78f6cecbb..4294784b9cf1 100644
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -55,7 +55,7 @@ config BCMA_DRIVER_PCI
 
 config BCMA_DRIVER_PCI_HOSTMODE
 	bool "Driver for PCI core working in hostmode"
-	depends on MIPS && BCMA_DRIVER_PCI
+	depends on MIPS && BCMA_DRIVER_PCI && BCMA = y
 	help
 	  PCI core hostmode operation (external PCI bus).
 
-- 
2.7.4