lkml.org 
[lkml]   [2006]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] genirq: ARM dyntick cleanup
On Mon, 3 Jul 2006 08:41:55 +0100
Russell King <rmk+lkml@arm.linux.org.uk> wrote:

> On Sun, Jul 02, 2006 at 05:35:27PM -0700, Andrew Morton wrote:
> > This is not exactly a thing of beauty either. It's much cleaner to use
> > __attribute__((weak)), but that will add an empty call-return to everyone's
> > interrupts.
>
> Let's not go overboard with the weak stuff - it does not get removed
> at link time, so it remains as dead code in the kernel image.

Well.

void handle_dynamic_tick(struct irqaction *action)
{
}

consumes one byte, doesn't it? That's not very far overboard ;)

And we can optimise away that byte by doing what we do with cond_syscall().
-
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: 2006-07-03 09:58    [W:0.114 / U:0.464 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site