lkml.org 
[lkml]   [2004]   [Sep]   [13]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateMon, 13 Sep 2004 07:33:48 -0700 (PDT)
FromLinus Torvalds <>
SubjectRe: Add sparse "__iomem" infrastructure to check PCI address usage

On Mon, 13 Sep 2004, Geert Uytterhoeven wrote:
> 
> While resuming adding __user annotations to the m68k-specific parts of the
> code, I stumbled on
> 
>     struct task_struct {
> 	...
> 	unsigned long sas_ss_sp;
> 	...
>     }
> 
> If I'm not mistaken, sas_ss_sp is always a pointer to user stack space.
> Shouldn't it be changed to `void __user *sas_ss_sp', or is an
> unsigned long/void * change in generic code a too controversial change for
> making sparse happy?

I don't think it's too controversial per se, and it would certainly remove 
at least two casts from kernel/signal.c. Are you ready to fix up some 
other architectures from the fall-out (x86 at the least..)

		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: 2005-03-22 14:06    [from the cache]
©2003-2008