[PATCH AUTOSEL 4.14 19/66] MIPS: BMC47xx: fix kconfig dependency bug for BCM47XX_SSB

Sasha Levin
2020-12-23T02:41:11Z

From: Necip Fazil Yildiran <fazilyildiran@gmail.com>

[ Upstream commit 09a48cbcd7af9203296938044f1100bb113ce01a ]

When BCM47XX_SSB is enabled and SSB_PCIHOST is disabled, it results in the
following Kbuild warning:

WARNING: unmet direct dependencies detected for SSB_B43_PCI_BRIDGE
Depends on [n]: SSB [=y] && SSB_PCIHOST [=n]
Selected by [y]:
- BCM47XX_SSB [=y] && BCM47XX [=y] && PCI [=y]

The reason is that BCM47XX_SSB selects SSB_B43_PCI_BRIDGE without
depending on or selecting SSB_PCIHOST while SSB_B43_PCI_BRIDGE depends on
SSB_PCIHOST. This can also fail building the kernel as demonstrated in a
bug report.

Honor the kconfig dependency to remove unmet direct dependency warnings
and avoid any potential build failures.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=210051
Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/bcm47xx/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/mips/bcm47xx/Kconfig b/arch/mips/bcm47xx/Kconfig
index 29471038d817e..54e79f3047a14 100644
--- a/arch/mips/bcm47xx/Kconfig
+++ b/arch/mips/bcm47xx/Kconfig
@@ -9,6 +9,7 @@ config BCM47XX_SSB
select SSB_DRIVER_MIPS
select SSB_DRIVER_EXTIF
select SSB_EMBEDDED
+ select SSB_PCIHOST if PCI
select SSB_B43_PCI_BRIDGE if PCI
select SSB_DRIVER_PCICORE if PCI
select SSB_PCICORE_HOSTMODE if PCI
--
2.27.0