[yocto] [PATCH 1/2] meta-yocto: allow for virtual/kernel override

[Darren Hart]

Conditionally assign the PREFERRED_PROVIDER_virtual/kernel in the meta-yocto
machine configs to allow the user or other layers to override it. This is
required to use the linux-yocto-rt kernel, for example.

Signed-off-by: Darren Hart <dvhart at linux.intel.com>
---
 meta-yocto/conf/machine/mpc8315e-rdb.conf     |    2 +-
 meta-yocto/conf/machine/routerstationpro.conf |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta-yocto/conf/machine/mpc8315e-rdb.conf b/meta-yocto/conf/machine/mpc8315e-rdb.conf
index 172deec..b30c8af 100644
--- a/meta-yocto/conf/machine/mpc8315e-rdb.conf
+++ b/meta-yocto/conf/machine/mpc8315e-rdb.conf
@@ -11,7 +11,7 @@ SERIAL_CONSOLE = "115200 ttyS0"
 
 MACHINE_FEATURES = "kernel26 keyboard pci ext2 ext3 serial"
 
-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
 #PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
 PREFERRED_PROVIDER_virtual/xserver = "xserver-kdrive"
 XSERVER = "xserver-kdrive-fbdev"
diff --git a/meta-yocto/conf/machine/routerstationpro.conf b/meta-yocto/conf/machine/routerstationpro.conf
index e6f89d8..a0afd5d 100644
--- a/meta-yocto/conf/machine/routerstationpro.conf
+++ b/meta-yocto/conf/machine/routerstationpro.conf
@@ -10,7 +10,7 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 \
 KERNEL_IMAGETYPE = "vmlinux"
 KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
 
-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
 #PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
 PREFERRED_PROVIDER_virtual/xserver = "xserver-kdrive"
 XSERVER = "xserver-kdrive-fbdev"
-- 
1.7.6