cxl: remove a dead branch

[Michael Ellerman]

Mathieu Malaterre <malat at debian.org> writes:
> Frederic,
>
> Could you double check with Michael what is now best to do.

I decided it had been long enough (since March), so I just merged it.

If Fred et. al. want to do something better they can send me another
patch on top of it.

cheers

> On Mon, Aug 13, 2018 at 1:23 PM Michael Ellerman
> <patch-notifications at ellerman.id.au> wrote:
>>
>> On Thu, 2018-03-22 at 21:05:28 UTC, Mathieu Malaterre wrote:
>> > In commit 14baf4d9c739 ("cxl: Add guest-specific code") the following code
>> > was added:
>> >
>> >       if (afu->crs_len < 0) {
>> >               dev_err(&afu->dev, "Unexpected configuration record size value\n");
>> >               return -EINVAL;
>> >       }
>> >
>> > However the variable `crs_len` is of type u64 and cannot be compared < 0.
>> > Remove the dead code section. Fix the following warning treated as error
>> > with W=1:
>> >
>> > ../drivers/misc/cxl/guest.c:919:19: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
>> >
>> > Signed-off-by: Mathieu Malaterre <malat at debian.org>
>>
>> Applied to powerpc next, thanks.
>>
>> https://git.kernel.org/powerpc/c/e4ecafb14fd9cd77d8f4320af1922e
>>
>> cheers