Re: [patch V3 07/13] x86/ptrace: Provide pt_regs helpers for entry/exit

[Kees Cook]

On Thu, Jul 16, 2020 at 08:22:15PM +0200, Thomas Gleixner wrote:
> As a preparatory step for moving the syscall and interrupt entry/exit
> handling into generic code, provide pt_regs helpers which allow to:
> 
>   - Retrieve the syscall number from pt_regs
>   - Retrieve the syscall return value from pt_regs
>   - Retrieve the interrupt state from pt_regs to check whether interrupts
>     are reenabled by return from interrupt/exception.
> 
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-- 
Kees Cook