From: Greg Kroah-Hartman Date: Wed, 11 Jan 2023 11:30:15 +0000 (+0100) Subject: mcb: move to_mcb_device() to use container_of_const() X-Git-Tag: v6.3-rc1~106^2~71 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=deaf8b21c803b3932071a7cf9b11f36e13000f5c;p=thirdparty%2Flinux.git mcb: move to_mcb_device() to use container_of_const() 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 Acked-by: Hans de Goede Link: https://lore.kernel.org/r/20230111113018.459199-14-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/include/linux/mcb.h b/include/linux/mcb.h index f6efb16f9d1b4..1e5893138afe0 100644 --- a/include/linux/mcb.h +++ b/include/linux/mcb.h @@ -76,10 +76,7 @@ struct mcb_device { struct device *dma_dev; }; -static inline struct mcb_device *to_mcb_device(struct device *dev) -{ - return container_of(dev, struct mcb_device, dev); -} +#define to_mcb_device(__dev) container_of_const(__dev, struct mcb_device, dev) /** * struct mcb_driver - MEN Chameleon Bus device driver