[Xen-devel] struct irq_desc vs. struct irq_cfg

["Jan Beulich" <JBeulich@xxxxxxxx>]

Originally, iirc, struct irq_desc's chip_data pointer was intended to be set to
something specific to the struct hw_interrupt_type instance that's being
put into its handler pointer. Currently, however, struct irq_cfg is being
used universally (and carries data that is also intended to be available) for
all interrupt types. Wouldn't it make sense to move global data back into
struct irq_desc, or should we rather introduce a second pointer (e.g.
handler_data) in struct irq_desc to allow handler specific context to be
stored?

Thanks, Jan


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