lkml.org 
[lkml]   [2006]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: pcmcia oops on 2.6.17-rc[12]


On Tue, 16 May 2006, Alan Cox wrote:
>
> The reason they do it is also however because the ISA bus IRQ allocation
> scheme and IRQ probing scheme they use for auto detection relies upon
> other users marking the IRQ as exclusively used. The same is true for
> things like setserial and ISA ports.

The irq auto-detection should work with shared interrupts, but yes, it
won't _detect_ them if they are already in use (but it's ok with them
becoming shared later).

That said, true ISA cards obviously won't ever have a shared irq, in any
normal circumstances.

Which is one reason why I think it would be silly to force such a driver
to use a SA_SHIRQ flag, and would prefer to do it the other way instead
(ie make drivers that fundamentally _require_ - as opposed to "in
practice use" - an exclusive interrupt say so).

> PCMCIA doesn't seem to have too many offenders, and the number of
> drivers is low so it won't take long to go over them.

Yeah.

Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2009-11-18 23:46    [W:0.055 / U:0.460 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site