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Diffstat (limited to 'sound/pci/hda/hda_codec.h')
-rw-r--r--sound/pci/hda/hda_codec.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 586ea08..6612d0f 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -905,4 +905,19 @@ static inline void snd_hda_power_down(struct hda_codec *codec) {}
#define snd_hda_codec_needs_resume(codec) 1
#endif
+/*
+ * Codec modularization
+ */
+
+/* Export symbols only for communication with codec drivers;
+ * When built in kernel, all HD-audio drivers are supposed to be statically
+ * linked to the kernel. Thus, the symbols don't have to (or shouldn't) be
+ * exported unless it's built as a module.
+ */
+#ifdef MODULE
+#define EXPORT_SYMBOL_HDA(sym) EXPORT_SYMBOL_GPL(sym)
+#else
+#define EXPORT_SYMBOL_HDA(sym)
+#endif
+
#endif /* __SOUND_HDA_CODEC_H */
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