drivers/isdn: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required.
In preparation of the module.h usage cleanup, call out the header
that we need to get EXPORT_SYMBOL variants and THIS_MODULE into scope.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c
index 621f310..b6c9a58 100644
--- a/drivers/isdn/mISDN/dsp_pipeline.c
+++ b/drivers/isdn/mISDN/dsp_pipeline.c
@@ -30,6 +30,7 @@
#include <linux/string.h>
#include <linux/mISDNif.h>
#include <linux/mISDNdsp.h>
+#include <linux/export.h>
#include "dsp.h"
#include "dsp_hwec.h"