Hi,
On 15/11/2019 20:01, Stewart Hildebrand wrote:
From: Ian Campbell <ian.campb...@citrix.com>
Split out the bit which allocates the struct irqaction and calls
__setup_irq into a new function (setup_guest_irq). I'm going to want
to call this a second time in a subsequent patch.
Note that the action is now allocated and initialised with the desc
lock held (since it is taken by the caller). I don't think this is an
issue (and avoiding this would make things more complex)
Signed-off-by: Ian Campbell <ian.campb...@citrix.com>
Signed-off-by: Stewart Hildebrand <stewart.hildebr...@dornerworks.com>
---
v2: New patch (maybe, it's been a while...)
v3: Rebase + trivial fixups
---
Note: I have not given much thought regarding Julien's comment in [1]
[1] https://lists.xenproject.org/archives/html/xen-devel/2015-11/msg01041.html
I would rather avoid to do memory allocation with interrupts disabled.
You may need to introduce a new function that will allocate/setup the
action, but I think this is worth the trouble. Note that the new
function could likely be re-used in request_irq() as well.
Cheers,
--
Julien Grall
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