Don't build SSB modules when SSB isn't present

From: Philip A Prindeville <[email protected]>

If you're building for a platform that has (for example) no SSB, then having a single knob to turn to disable this is a major win. Especially if more devices get add later that are SSB-based.

Tested.

---
 config.mk |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

index ce70832..49be2d0 100644
@@ -9,6 +9,8 @@ ifeq ($(wildcard $(KLIB_BUILD)/.config),)
  CONFIG_PCI=y
  CONFIG_USB=y
  CONFIG_PCMCIA=y
+ CONFIG_SSB_POSSIBLE=y
+ CONFIG_SSB=m
 else
 include $(KLIB_BUILD)/.config
 endif

@@ -218,6 +220,11 @@ CONFIG_IPW2200_QOS=y
 #
 # % echo 1 > /sys/bus/pci/drivers/ipw2200/*/rtap_iface
 
+ifneq ($(CONFIG_SSB),)
+# Sonics Silicon Backplane
+CONFIG_SSB_SPROM=y
+# CONFIG_SSB_DEBUG=y
+
 CONFIG_SSB_BLOCKIO=y
 CONFIG_SSB_PCIHOST_POSSIBLE=y
 CONFIG_SSB_PCIHOST=y

@@ -229,6 +236,7 @@ endif
 # CONFIG_SSB_DEBUG=y
 CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
 CONFIG_SSB_DRIVER_PCICORE=y
+endif
 
 CONFIG_P54_PCI=m
 

@@ -397,12 +405,6 @@ CONFIG_WL1251_SPI=m
 CONFIG_WL1251_SDIO=m
 CONFIG_WL1271=m
 
-# Sonics Silicon Backplane
-CONFIG_SSB_POSSIBLE=y
-CONFIG_SSB=m
-CONFIG_SSB_SPROM=y
-# CONFIG_SSB_DEBUG=y
-
 ifdef CONFIG_COMPAT_WIRELESS_27
 CONFIG_LIBERTAS=n
 else

Applied, thanks. Just one comment below.

This works only if you don't have SSB on your kernel as otherwise I believe regardless of this you'll end up coming ssb. So if you want to enable not compiling ssb we'd have to use another config option like CONFIG_COMPAT_26_SSB and use that in the makefile. But another easier option is to just enable *only* want you want in compat-wireless by using ./scripts/driver-select. In the future we may want to take porting the kernel's existing kconfig over and using mconf for example to enable menuconfig. But to get that working right we'd need to invent our own kconfig entries and replaces the kernels's with our own. An issue might also be in trying to ensure the new invented kconfig won't bust a kernel with its own kconfig entries.

Luis