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

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Date:   Fri, 12 Jan 2018 14:25:59 +0000
From:   Matt Redfearn <matt.redfearn@...s.com>
To:     Michael Buesch <m@...s.ch>
CC:     <linux-wireless@...r.kernel.org>,
        Matt Redfearn <matt.redfearn@...s.com>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] ssb: Prevent build of PCI host features in module

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

ERROR: "pcibios_enable_device" [drivers/ssb/ssb.ko] undefined!
ERROR: "register_pci_controller" [drivers/ssb/ssb.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_SSB=m

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

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

diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index d8e4219c2324..3e1c814e7331 100644
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -118,7 +118,7 @@ config SSB_SERIAL
 
 config SSB_DRIVER_PCICORE_POSSIBLE
 	bool
-	depends on SSB_PCIHOST
+	depends on SSB_PCIHOST && SSB = y
 	default y
 
 config SSB_DRIVER_PCICORE
-- 
2.7.4