[Xen-devel] [PATCH 3 of 3] IRQ: Introduce old_vector to irq_cfg v2

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

IRQ: Introduce old_vector to irq_cfg v2

Introduce old_vector to irq_cfg with the same principle as
old_cpu_mask.  This removes a brute force loop from
__clear_irq_vector(), and paves the way to correct bitrotten logic
elsewhere in the irq code.

Changes:
 * Make use of IRQ_VECTOR_UNASSIGNED instead of -1 for consistency
 * Correct logic in __clear_irq_vector(): should clean up
   cfg->old_vector rather than cfg->vector which has already been
   cleaned up

Signed-off-by Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

-- 
Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer
T: +44 (0)1223 225 900, http://www.citrix.com

Attachment: irq-introduce-old_vector-to-irq_cfg.patch
Description: Text Data

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