linux-kernel - [PATCH 02/11] staging: comedi: comedidev.h: use enum for COMEDI_CB

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Date:	Mon, 21 Sep 2015 18:52:47 +0100
From:	Ian Abbott <abbotti@....co.uk>
To:	<driverdev-devel@...uxdriverproject.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ian Abbott <abbotti@....co.uk>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH 02/11] staging: comedi: comedidev.h: use enum for COMEDI_CB_... constants

The existing constants `COMEDI_CB_EOS` etc. are in the form of macros
and have a bogus kernel-doc comment.  Change them to `enum` constants so
they can be documented properly with kernel-doc.

Signed-off-by: Ian Abbott <abbotti@....co.uk>
---
 drivers/staging/comedi/comedidev.h | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 097c3d5..76a1b93 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -216,26 +216,27 @@ struct comedi_async {
 };
 
 /**
- * comedi_async callback "events"
+ * enum comedi_cb - &struct comedi_async callback "events"
  * @COMEDI_CB_EOS:		end-of-scan
  * @COMEDI_CB_EOA:		end-of-acquisition/output
  * @COMEDI_CB_BLOCK:		data has arrived, wakes up read() / write()
  * @COMEDI_CB_EOBUF:		DEPRECATED: end of buffer
  * @COMEDI_CB_ERROR:		card error during acquisition
  * @COMEDI_CB_OVERFLOW:		buffer overflow/underflow
- *
  * @COMEDI_CB_ERROR_MASK:	events that indicate an error has occurred
  * @COMEDI_CB_CANCEL_MASK:	events that will cancel an async command
  */
-#define COMEDI_CB_EOS		BIT(0)
-#define COMEDI_CB_EOA		BIT(1)
-#define COMEDI_CB_BLOCK		BIT(2)
-#define COMEDI_CB_EOBUF		BIT(3)
-#define COMEDI_CB_ERROR		BIT(4)
-#define COMEDI_CB_OVERFLOW	BIT(5)
-
-#define COMEDI_CB_ERROR_MASK	(COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW)
-#define COMEDI_CB_CANCEL_MASK	(COMEDI_CB_EOA | COMEDI_CB_ERROR_MASK)
+enum comedi_cb {
+	COMEDI_CB_EOS		= BIT(0),
+	COMEDI_CB_EOA		= BIT(1),
+	COMEDI_CB_BLOCK		= BIT(2),
+	COMEDI_CB_EOBUF		= BIT(3),
+	COMEDI_CB_ERROR		= BIT(4),
+	COMEDI_CB_OVERFLOW	= BIT(5),
+	/* masks */
+	COMEDI_CB_ERROR_MASK	= (COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW),
+	COMEDI_CB_CANCEL_MASK	= (COMEDI_CB_EOA | COMEDI_CB_ERROR_MASK)
+};
 
 struct comedi_driver {
 	struct comedi_driver *next;
-- 
2.5.1

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