Re: [patch V2 14/17] entry: Provide generic exit to usermode functionality

[Andy Lutomirski]

On Wed, Oct 23, 2019 at 5:31 AM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>
> From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>
> Provide a generic facility to handle the exit to usermode work. That's
> aimed to replace the pointlessly different copies in each architecture.


>  /**
> + * local_irq_enable_exit_to_user - Exit to user variant of local_irq_enable()
> + * @ti_work:   Cached TIF flags gathered with interrupts disabled
> + *
> + * Defaults to local_irq_enable(). Can be supplied by architecture specific
> + * code.

What did you have in mind here?