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mcb: move to_mcb_device() to use container_of_const()

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The driver core is changing to pass some pointers as const, so move
to_mcb_device() to use container_of_const() to handle this change.

to_mcb_device() now properly keeps the const-ness of the pointer passed
into it, while as before it could be lost.

Cc: Johannes Thumshirn <morbidrsa@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-14-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2023-01-11 12:30:15 +01:00
parent dad1b44284
commit deaf8b21c8
1 changed files with 1 additions and 4 deletions
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5
include/linux/mcb.h
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@@ -76,10 +76,7 @@ struct mcb_device {
struct device *dma_dev; struct device *dma_dev;
}; };
static inline struct mcb_device *to_mcb_device(struct device *dev) #define to_mcb_device(__dev) container_of_const(__dev, struct mcb_device, dev)
{
return container_of(dev, struct mcb_device, dev);
}
/** /**
* struct mcb_driver - MEN Chameleon Bus device driver * struct mcb_driver - MEN Chameleon Bus device driver