linux-kernel - [RFC PATCH] ssb: relax SSB

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Date:   Sat,  7 Oct 2023 11:24:43 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>, Michael Buesch <m@...s.ch>,
        linux-wireless@...r.kernel.org
Subject: [RFC PATCH] ssb: relax SSB_EMBEDDED dependencies

This is a kconfig warning in a randconfig when CONFIG_PCI is not set:

WARNING: unmet direct dependencies detected for SSB_EMBEDDED
  Depends on [n]: SSB [=y] && SSB_DRIVER_MIPS [=y] && SSB_PCICORE_HOSTMODE [=n]
  Selected by [y]:
  - BCM47XX_SSB [=y] && BCM47XX [=y]

This is caused by arch/mips/bcm47xx/Kconfig's symbol BCM47XX_SSB
selecting SSB_EMBEDDED when CONFIG_PCI is not set.

This warning can be prevented by having SSB_EMBEDDED not depend on
SSB_PCICORE_HOSTMODE, although some parts of SSB use PCI.

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Michael Buesch <m@...s.ch>
Cc: linux-wireless@...r.kernel.org
---
Comments, thoughts?

I also tried changing arch/mips/bcm47xx/Kconfig's BCM47XX_SSB to
	select SSB_EMBEDDED if PCI
but that results in build errors.

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

diff -- a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -134,7 +134,7 @@ config SSB_SFLASH
 # Assumption: We are on embedded, if we compile the MIPS core.
 config SSB_EMBEDDED
 	bool
-	depends on SSB_DRIVER_MIPS && SSB_PCICORE_HOSTMODE
+	depends on SSB_DRIVER_MIPS
 	default y
 
 config SSB_DRIVER_EXTIF