[OpenWrt-Devel] [Patch][BCM63XX][V2][RFC] Select HW_RANDOM_BCM63XX only in the SoCs that support it.

[José Vázquez Fernández]

Select HW_RANDOM_BCM63XX only in the SoCs that support it.

Only BCM6368, BCM6362 and BCM63268 have a hardware random numbers
generator, so, if none of these are selected, don't compile it.

Tested with BCM6358 and BCM6328 successfully with both 3.10 and 3.14 
kernels.

Signed off by: José Vázquez Fernández <ppvazquezfer at gmail.com>

diff -urN a/arch/mips/bcm63xx/Kconfig b/arch/mips/bcm63xx/Kconfig
--- a/arch/mips/bcm63xx/Kconfig	2014-06-02 16:00:48.000000000 +0200
+++ b/arch/mips/bcm63xx/Kconfig	2014-06-18 17:06:30.119106246 +0200
@@ -60,6 +60,7 @@
  	select HW_HAS_PCI
  	select BCM63XX_OHCI
  	select BCM63XX_EHCI
+	select BCM_RNG

  config BCM63XX_CPU_6368
  	bool "support 6368 CPU"
@@ -67,6 +68,7 @@
  	select HW_HAS_PCI
  	select BCM63XX_OHCI
  	select BCM63XX_EHCI
+	select BCM_RNG

  config BCM63XX_CPU_63268
  	bool "support 63268 CPU"
@@ -74,6 +76,10 @@
  	select HW_HAS_PCI
  	select BCM63XX_OHCI
  	select BCM63XX_EHCI
+	select BCM_RNG
  endmenu

+config BCM_RNG
+	bool
+
  source "arch/mips/bcm63xx/boards/Kconfig"
diff -urN a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
--- a/drivers/char/hw_random/Kconfig	2014-05-31 21:34:37.000000000 +0200
+++ b/drivers/char/hw_random/Kconfig	2014-06-18 17:03:53.127017691 +0200
@@ -75,7 +75,7 @@

  config HW_RANDOM_BCM63XX
  	tristate "Broadcom BCM63xx Random Number Generator support"
-	depends on HW_RANDOM && BCM63XX
+	depends on HW_RANDOM && (BCM_RNG || COMPILE_TEST)
  	default HW_RANDOM
  	---help---
  	  This driver provides kernel-side support for the Random Number
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