RE: [PATCH v2 14/14] platform/x86: dell-wmi-smbios: clean up wmi descriptor check

From: Mario.Limonciello
Date: Tue Sep 26 2017 - 16:19:58 EST


> -----Original Message-----
> From: Pali RohÃr [mailto:pali.rohar@xxxxxxxxx]
> Sent: Tuesday, September 26, 2017 4:12 PM
> To: Limonciello, Mario <Mario_Limonciello@xxxxxxxx>
> Cc: dvhart@xxxxxxxxxxxxx; Andy Shevchenko <andy.shevchenko@xxxxxxxxx>;
> LKML <linux-kernel@xxxxxxxxxxxxxxx>; platform-driver-x86@xxxxxxxxxxxxxxx;
> quasisec@xxxxxxxxxx
> Subject: Re: [PATCH v2 14/14] platform/x86: dell-wmi-smbios: clean up wmi
> descriptor check
>
> On Tuesday 26 September 2017 20:50:12 Mario Limonciello wrote:
> > + if (strncmp(obj->string.pointer, "DELL WMI", 8) != 0)
>
> Should not be this memcmp? IIRC we want to compare that buffer is equal
> to some bytes, right?
>

It used to be comparing the bytes, but Andy S. thought this wasn't very clear.
That's why I adjusted it to compare to the strings that the bytes used instead.