Messages in this thread | | | Date | Fri, 18 Apr 2008 20:25:37 -0400 | From | Jeff Garzik <> | Subject | Re: [PATCH 01/15] ARM minor irq handler cleanups |
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Lennert Buytenhek wrote: > On Fri, Apr 18, 2008 at 07:22:45PM -0400, Jeff Garzik wrote: >> This change's main purpose is to prepare for the patchset in >> jgarzik/misc-2.6.git#irq-remove, that explores removal of the >> never-used 'irq' argument in each interrupt handler. > > What do you mean? I know at least one of two interrupt handlers > in-tree that use their 'irq' arguments.
They can use new function get_irqfunc_irq(), similar to the existing method of getting pt_regs for the tiny number of users who need that sort of info, when pt_regs was removed.
But after having gone over, literally, every single interrupt handler in the kernel, I can safely say that 99.8% never reference that argument, and 0.1% that do already have the same information via another route.
That leaves only a few drivers that need it without modification, and even fewer drivers that need it after modification.
Jeff
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