Re: [PATCH 00/15] arm/arm64: fix use of irq_find_mapping outside of legal RCU context

[Marc Zyngier]

On Fri, Jul 11 2014 at  9:38:22 pm BST, Christopher Covington <cov@xxxxxxxxxxxxxx> wrote:
> Hi Mark,
>
> On 07/08/2014 09:10 AM, Marc Zyngier wrote:
>> A number of irqchip drivers are directly calling irq_find_mapping,
>> which may use a rcu_read_lock call when walking the radix tree.
>
> If this happens to be easy for you to determine: do direct callers of
> irq_find_host such as irq_create_of_mapping have a similar problem with
> irq_domain_mutex?

Definitely not from this problem. irq_find_host doesn't use RCU at all,
so it shouldn't be an issue.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny.
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