Re: [PATCH] staging/wilc: fix Kconfig dependencies, second try

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Hi Arnd Bergmann,

When I apply this patch, I cannot make WILC1000 module (wilc1000.ko) because CONFIG_WILC1000 is y and also I can see some link errors for the cfg80211 APIs.

Can you consider this patch?

Thanks,

Tony.


On 2015년 10월 17일 05:45, Arnd Bergmann wrote:
My first attempt to fix the Kconfig logic for wilc1000 was incomplete,
as it missed the case where SPI is built-in while SDIO is modular
and wilc1000 is configured as built-in in SPI mode (or vice versa),
which would still lead to a link failure.

This works around the problem by adding an intermediate Kconfig
symbol "WILC1000_DRIVER" that controls visibility of the SDIO and
SPI sub-drivers, so we can control the dependencies better.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 9535ebc5e9cc ("staging/wilc1000: fix Kconfig dependencies")

diff --git a/drivers/staging/wilc1000/Kconfig b/drivers/staging/wilc1000/Kconfig
index 59ccecc316df..ee51b4278088 100644
--- a/drivers/staging/wilc1000/Kconfig
+++ b/drivers/staging/wilc1000/Kconfig
@@ -1,14 +1,16 @@
-config WILC1000
-	tristate "WILC1000 support (WiFi only)"
-	depends on !S390
+config WILC1000_DRIVER
+	bool "WILC1000 support (WiFi only)"
  	depends on CFG80211 && WEXT_CORE && INET
-	depends on MMC || SPI
  	---help---
  	  This module only support IEEE 802.11n WiFi.
+if WILC1000_DRIVER
+
+config WILC1000
+	tristate
+
  choice
          prompt "Memory Allocation"
-        depends on WILC1000
          default WILC1000_PREALLOCATE_AT_LOADING_DRIVER
config WILC1000_PREALLOCATE_AT_LOADING_DRIVER
@@ -29,12 +31,12 @@ endchoice
choice
  	prompt "Bus Type"
-	depends on WILC1000
  	default WILC1000_SDIO
- config WILC1000_SDIO
+config WILC1000_SDIO
  	bool "SDIO support"
  	depends on MMC
+	select WILC1000
  	---help---
  	  This module adds support for the SDIO interface of adapters using
  	  WILC1000 chipset. The Atmel WILC1000 SDIO is a full speed interface.
@@ -45,8 +47,9 @@ choice
  	  To use this interface, pin9 (SDIO_SPI_CFG) must be grounded. Select
  	  this if your platform is using the SDIO bus.
- config WILC1000_SPI
+config WILC1000_SPI
  	depends on SPI
+	select WILC1000
  	bool "SPI support"
  	---help---
  	  This module adds support for the SPI interface of adapters using
@@ -60,7 +63,7 @@ endchoice
config WILC1000_HW_OOB_INTR
  	bool "Use out of band interrupt"
-	depends on WILC1000 && WILC1000_SDIO
+	depends on WILC1000_SDIO
  	default n
  	---help---
  	  This option enables out-of-band interrupt support for the WILC1000
@@ -68,3 +71,5 @@ config WILC1000_HW_OOB_INTR
  	  mechanism for SDIO host controllers that don't support SDIO interrupt.
  	  Select this option If the SDIO host controller in your platform
  	  doesn't support SDIO time devision interrupt.
+
+endif

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