svn commit: r361723 - head/sys/compat/linuxkpi/common/include/linux

[Emmanuel Vadot]

 Hello Hans,

On Tue, 2 Jun 2020 10:19:45 +0000 (UTC)
Hans Petter Selasky <hselasky at FreeBSD.org> wrote:

> Author: hselasky
> Date: Tue Jun  2 10:19:45 2020
> New Revision: 361723
> URL: https://svnweb.freebsd.org/changeset/base/361723
> 
> Log:
>   Implement struct_size() function macro in the LinuxKPI.
>   
>   MFC after:	1 week
>   Sponsored by:	Mellanox Technologies
> 
> Modified:
>   head/sys/compat/linuxkpi/common/include/linux/kernel.h
> 
> Modified: head/sys/compat/linuxkpi/common/include/linux/kernel.h
> ==============================================================================
> --- head/sys/compat/linuxkpi/common/include/linux/kernel.h	Tue Jun  2 09:45:43 2020	(r361722)
> +++ head/sys/compat/linuxkpi/common/include/linux/kernel.h	Tue Jun  2 10:19:45 2020	(r361723)
> @@ -555,4 +555,10 @@ linux_ratelimited(linux_ratelimit_t *rl)
>  	return (ppsratecheck(&rl->lasttime, &rl->counter, 1));
>  }
>  
> +#define	struct_size(ptr, field, num) ({ \
> +	const size_t __size = offsetof(__typeof(*(ptr)), field); \
> +	const size_t __max = (SIZE_MAX - __size) / sizeof((ptr)->field[0]); \
> +	((num) > __max) ? SIZE_MAX : (__size + sizeof((ptr)->field[0]) * (num)); \
> +})
> +
>  #endif	/* _LINUX_KERNEL_H_ */

 Can you bump FreeBSD_version so I can fix
https://github.com/freebsd/drm-kmod/ and update the
graphics/drm-devel-kmod port please ?

-- 
Emmanuel Vadot <manu at bidouilliste.com> <manu at freebsd.org>