diff mbox series

[07/10] vfio/mdev: Make to_mdev_device() into a static inline

Message ID 7-v1-7355d38b9344+17481-vfio1_jgg@nvidia.com (mailing list archive)
State New, archived
Headers show
Series Embed struct vfio_device in all sub-structures | expand

Commit Message

Jason Gunthorpe March 9, 2021, 9:38 p.m. UTC 
The macro wrongly uses 'dev' as both the macro argument and the member
name, which means it fails compilation if any caller uses a word other
than 'dev' as the single argument. Fix this defect by making it into
proper static inline, which is more clear and typesafe anyhow.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/vfio/mdev/mdev_private.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Comments

Christoph Hellwig March 10, 2021, 7:32 a.m. UTC | #1 
On Tue, Mar 09, 2021 at 05:38:49PM -0400, Jason Gunthorpe wrote:
> The macro wrongly uses 'dev' as both the macro argument and the member
> name, which means it fails compilation if any caller uses a word other
> than 'dev' as the single argument. Fix this defect by making it into
> proper static inline, which is more clear and typesafe anyhow.
> 
> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>
diff mbox series

Patch

diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h
index 7d922950caaf3c..74c2e541146999 100644
--- a/drivers/vfio/mdev/mdev_private.h
+++ b/drivers/vfio/mdev/mdev_private.h
@@ -35,7 +35,10 @@  struct mdev_device {
 	bool active;
 };
 
-#define to_mdev_device(dev)	container_of(dev, struct mdev_device, dev)
+static inline struct mdev_device *to_mdev_device(struct device *dev)
+{
+	return container_of(dev, struct mdev_device, dev);
+}
 #define dev_is_mdev(d)		((d)->bus == &mdev_bus_type)
 
 struct mdev_type {