parisc: Re-enable interrupts early

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Since kernel 3.9 we re-enable interrupts quite late due to commit c207a76bf1
("parisc: only re-enable interrupts if we need to schedule or deliver signals
when returning to userspace"). At that time the parisc kernel had no dedicated
IRQ stack, and this commit prevented kernel stack overflows.

But since commit 200c880420 ("parisc: implement irq stacks") we now have an
IRQ stack, so we may be safe now.  And when CONFIG_DEBUG_STACKOVERFLOW=y is
enabled, we can even check at runtime for overflows.

Signed-off-by: Helge Deller <deller@gmx.de>

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This commit is contained in:

Helge Deller 2016-10-24 21:55:58 +02:00

parent 18d98a7938

commit 5c38602d83

1 changed files with 3 additions and 9 deletions

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arch/parisc/kernel/entry.S

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