netdev - [PATCHv2 vringh 2/3] virtio: Add module driver macro for virtio drivers.

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Date:	Tue, 12 Feb 2013 12:49:52 +0100
From:	sjur.brandeland@...ricsson.com
To:	Rusty Russell <rusty@...tcorp.com.au>,
	"David S. Miller" <davem@...emloft.net>,
	Ohad Ben-Cohen <ohad@...ery.com>
Cc:	sjur@...ndeland.net, netdev@...r.kernel.org,
	virtualization@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org,
	Dmitry Tarnyagin <dmitry.tarnyagin@...ricsson.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Erwan Yvin <erwan.yvin@...ricsson.com>,
	Sjur Brændeland <sjur.brandeland@...ricsson.com>
Subject: [PATCHv2 vringh 2/3] virtio: Add module driver macro for virtio drivers.

From: Sjur Brændeland <sjur.brandeland@...ricsson.com>

Add helper macro for drivers that don't do anything
special in module init/exit.

Signed-off-by: Sjur Brændeland <sjur.brandeland@...ricsson.com>
---
 include/linux/virtio.h |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index cf8adb1..00ccc40 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -126,4 +126,13 @@ static inline struct virtio_driver *drv_to_virtio(struct device_driver *drv)
 
 int register_virtio_driver(struct virtio_driver *drv);
 void unregister_virtio_driver(struct virtio_driver *drv);
+
+/* module_virtio_driver() - Helper macro for drivers that don't do
+ * anything special in module init/exit.  This eliminates a lot of
+ * boilerplate.  Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_virtio_driver(__virtio_driver) \
+	module_driver(__virtio_driver, register_virtio_driver, \
+			unregister_virtio_driver)
 #endif /* _LINUX_VIRTIO_H */
-- 
1.7.5.4

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