Re: [PATCH 3/3] firmware/dmi_scan: Constify strings

From: Jean Delvare
Date: Tue Jul 09 2013 - 12:23:54 EST


Hi Joe,

Le Tuesday 09 July 2013 Ã 08:58 -0700, Joe Perches a Ãcrit :
> On Tue, 2013-07-09 at 17:43 +0200, Jean Delvare wrote:
> > Add const to all DMI string pointers where this is possible. This
> > fixes a checkpatch warning.
>
> That's a nice little improvement.

Thanks.

> > +++ linux-3.10-rc0/drivers/firmware/dmi_scan.c 2013-05-04 11:20:52.808187924 +0200
> []
> > @@ -252,7 +252,7 @@ static void __init dmi_save_oem_strings_
> > struct dmi_device *dev;
> >
> > for (i = 1; i <= count; i++) {
> > - char *devname = dmi_string(dm, i);
> > + const char *devname = dmi_string(dm, i);
> >
> > if (devname == dmi_empty_string)
>
> btw: that last test sure looks like it would be
> better written as
> if (strcmp(devname, dmi_empty_string) == 0)
>

No, it does not. If you look at the rest of the code, the comparison
makes sense as is.

--
Jean Delvare
Suse L3

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