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Subject[PATCH] staging: comedi: comedi_8254.h: make self-reliant
Date
The Comedi "comedi_8254.h" header file is included by various Comedi
drivers with timer/counters based on the 8254 chip. The drivers do not
compile cleanly if this header file is included first. It uses pointers
to the `struct comedi_device`, `struct comedi_subdevice`, and `struct
comedi_insn` structures in various function prototypes, so declare those
as incomplete types. It use the `bool` type, so include
<linux/types.h>. It also uses the `__iomem` tag, but that seems to be
taken care of indirectly by including <linux/types.h>.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
---
drivers/staging/comedi/drivers/comedi_8254.h | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/staging/comedi/drivers/comedi_8254.h b/drivers/staging/comedi/drivers/comedi_8254.h
index d89f6d9..f4610ea 100644
--- a/drivers/staging/comedi/drivers/comedi_8254.h
+++ b/drivers/staging/comedi/drivers/comedi_8254.h
@@ -20,6 +20,12 @@
#ifndef _COMEDI_8254_H
#define _COMEDI_8254_H

+#include <linux/types.h>
+
+struct comedi_device;
+struct comedi_insn;
+struct comedi_subdevice;
+
/*
* Common oscillator base values in nanoseconds
*/
--
2.1.4


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