Re: [PATCH trivial] kernel.h: Make container_of_safe type safe

[Christoph Hellwig]

On Thu, Jan 24, 2019 at 08:55:05PM +0000, Jason Gunthorpe wrote:
> The final ternary expression is given void * and type * as arguments, so
> the resulting type of the macro ends up being void *.
> 
> container_of returns a type which maches the argument, this provides type
> safety and allows the expression to be immediately used as the target
> type.
> 
> Explicitly cast ERR_CAST() to get the correct type.

I think we should just kill off container_of_safe - it has no user
in the tree, is grossly misnamed and not really all that useful to start
with.