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-rw-r--r--devel/doc/kconfig-operation5
1 files changed, 5 insertions, 0 deletions
diff --git a/devel/doc/kconfig-operation b/devel/doc/kconfig-operation
index ddb4de77..35e198c6 100644
--- a/devel/doc/kconfig-operation
+++ b/devel/doc/kconfig-operation
@@ -73,6 +73,11 @@ This allows code to, for example, have "#ifdef CONFIG_PM" which can only
be set or cleared in the kernel, not in the backport configuration. Since
this is needed, a transformation step is done at backport creation time.
+When using Linux backports to integrate into an existing Linux tree
+the CONFIG_BACKPORT_ prefix is used, this allows a CONFIG_BACKPORT_
+symbol to depend on the non-backported respective symbol to be selected
+allowing these to be mutually exclusive.
+
Backport creation for Kconfig
-------------------------------