Merge remote-tracking branches 'asoc/topic/tas2552', 'asoc/topic/tegra', 'asoc/topic...

[deliverable/linux.git] / Documentation / ABI / README

diff --git a/Documentation/ABI/README b/Documentation/ABI/README
index 10069828568b4e6d6b698e99c3aaccfe16128e12..1fafc4b0753b4eedf0bc00351286ff864745ab07 100644 (file)
--- a/Documentation/ABI/README
+++ b/Documentation/ABI/README
@@ -72,3 +72,16 @@ kernel tree without going through the obsolete state first.
 
 It's up to the developer to place their interfaces in the category they
 wish for it to start out in.
+
+
+Notable bits of non-ABI, which should not under any circumstances be considered
+stable:
+
+- Kconfig.  Userspace should not rely on the presence or absence of any
+  particular Kconfig symbol, in /proc/config.gz, in the copy of .config
+  commonly installed to /boot, or in any invocation of the kernel build
+  process.
+
+- Kernel-internal symbols.  Do not rely on the presence, absence, location, or
+  type of any kernel symbol, either in System.map files or the kernel binary
+  itself.  See Documentation/stable_api_nonsense.txt.