lkml.org 
[lkml]   [2012]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [TRIVIAL PATCH 16/26] x86: Convert print_symbol to %pSR
On Thu, Dec 13, 2012 at 10:23:10AM -0800, Joe Perches wrote:
> m->ip is a u64 so, when compiling x86-32, there's a new warning
> "cast to pointer from integer of different size". This isn't new
> different behavior, just a new warning. The previous print_symbol
> took a ulong and the u64 was silently truncated.
>
> CC arch/x86/kernel/cpu/mcheck/mce.o
> arch/x86/kernel/cpu/mcheck/mce.c: In function ‘print_mce’:
> arch/x86/kernel/cpu/mcheck/mce.c:246:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
>
> If appropriate, the code could be changed to
>
> (void *)(unsigned long)m->ip

Can we explicitly cast it to what it is so that we can be explicit as to
what we're casting it? IOW:

(void *)(__u64)m->ip;

Does that even work on 32bit?

Also, does the compiler bitch about this useless cast when building with
W=123?

Thanks.

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
--
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: 2012-12-13 20:01    [W:0.484 / U:0.460 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site