Patchwork [1/4] linux-yocto/3.4: allow kernel feature _appends to be overriden

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Submitter Bruce Ashfield
Date June 26, 2013, 1:40 p.m.
Message ID <>
Download mbox | patch
Permalink /patch/52377/
State Accepted
Commit 3bd592e832c6ce10947882f37564c12f4fa7f8e2
Headers show


Bruce Ashfield - June 26, 2013, 1:40 p.m.
Updating the linux-yocto 3.4 recipe's feature flags to match the 3.8
recipe, which has the following change:

    It was pointed out that the current way the KERNEL_FEATURES variable
    is appended in the base linux-yocto recipe doesn't allow the appended
    features to be prevented in a layer without using python code and
    a recipe finalize hook.

    To allow easier overriding of 'extra' or 'optional' features that are
    defined in the linux-yocto recipe, we create a KERNEL_EXTRA_FEATURES
    variable. This variable can be set in a layer to define extra features
    or cleared to prevent the recipe's extra features from being appended
    to the core functionality.

Signed-off-by: Bruce Ashfield <>
 meta/recipes-kernel/linux/ |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)


diff --git a/meta/recipes-kernel/linux/ b/meta/recipes-kernel/linux/
index 9d6d8c7..ade96be 100644
--- a/meta/recipes-kernel/linux/
+++ b/meta/recipes-kernel/linux/
@@ -23,7 +23,8 @@  KMETA = "meta"
 COMPATIBLE_MACHINE = "qemuarm|qemux86|qemuppc|qemumips|qemux86-64"
 # Functionality flags
-KERNEL_FEATURES_append = " features/netfilter/netfilter.scc"
-KERNEL_FEATURES_append_qemux86=" cfg/sound.scc"
+KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc"
+KERNEL_FEATURES_append_qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc"
 KERNEL_FEATURES_append_qemux86-64=" cfg/sound.scc"
 KERNEL_FEATURES_append = " ${@bb.utils.contains("TUNE_FEATURES", "mx32", " cfg/x32.scc", "" ,d)}"