[PATCH 4/4] arm64: entry: call exit_to_user_mode() from C

[Joey Gouly]

On Mon, Aug 02, 2021 at 03:07:33PM +0100, Mark Rutland wrote:
> When handling an exception from EL0, we perform the entry work in that
> exception's C handler, and once the C handler has finised, we return
typo: finished

> back to the entry assembly. Subsequently in the common `ret_to_user`
> assembly we perform the exit work that balances with the entry work.
> This can be somewhat difficult to follow, and makes it hard to rework
> the return paths (e.g. to pass additional context to the exit code, or
> to have exception return logic for specific exceptions).
> 

[..]

Reviewed-by: Joey Gouly <joey.gouly at arm.com>