Re: [patch V2 06/17] x86/entry/32: Remove redundant interrupt disable

Alexandre Chartre
2019-11-08T10:42:31Z

On 10/23/19 2:27 PM, Thomas Gleixner wrote:
> Now that the trap handlers return with interrupts disabled, the
> unconditional disabling of interrupts in the low level entry code can be
> removed along with the trace calls and the misnomed preempt_stop macro.
> As a consequence ret_from_exception and ret_from_intr collapse.
>
> Add a debug check to verify that interrupts are disabled depending on
> CONFIG_DEBUG_ENTRY.
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> ---
> arch/x86/entry/entry_32.S | 21 ++++++---------------
> 1 file changed, 6 insertions(+), 15 deletions(-)
>

Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>

alex.