lkml.org 
[lkml]   [2007]   [Jun]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [i2c] i2c module aliases
Hi Geert,

On Wed, 6 Jun 2007 23:32:38 +0200 (CEST), Geert Uytterhoeven wrote:
> >From browsing through file2alias.c, I have the impression there's a
> missing TO_NATIVE() conversion in the handling of 16-bit (hence,
> endian-affected) i2c IDs.
> This will cause the module aliases to be incorrect when cross-compiling
> for a system with a different endianness. Is that correct?
> If yes, the patch below adds the missing conversion.
>
> Of course, no driver seems to use `MODULE_DEVICE_TABLE(i2c, ...)' yet,
> hence nobody noticed.
>
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
>
> --- a/scripts/mod/file2alias.c
> +++ b/scripts/mod/file2alias.c
> @@ -390,6 +390,7 @@ static int do_vio_entry(const char *file
>
> static int do_i2c_entry(const char *filename, struct i2c_device_id *i2c, char *alias)
> {
> + i2c->id = TO_NATIVE(i2c->id);
> strcpy(alias, "i2c:");
> ADD(alias, "id", 1, i2c->id);
> return 1;
>

Looks correct. However I am curious what this "i2c->id" is supposed to
represent, given that I2C devices do not have any form of ID as PCI or
USB devices have. No driver uses "MODULE_DEVICE_TABLE(i2c, ...)"
probably just because it doesn't make sense. So, rather than fixing
this, shouldn't we simply wipe out struct i2c_device_id? Greg, David?

--
Jean Delvare
-
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: 2007-06-07 17:57    [W:0.040 / U:2.972 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site