lkml.org 
[lkml]   [2008]   [Apr]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 01/15] ARM minor irq handler cleanups
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




\
 
 \ /
  Last update: 2008-04-19 02:29    [W:0.177 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site