Subject: Re: linux-next: build failure after merge of the drm-misc tree

From: Christoph Hellwig <[email-masked]>
Date: Mon, 2 Nov 2020 10:27:11 +0000

On Mon, Nov 02, 2020 at 10:28:34AM +0100, Daniel Vetter wrote:
> > --- a/include/linux/swiotlb.h
> > +++ b/include/linux/swiotlb.h
> > @@ -5,6 +5,9 @@
> >  #include <linux/dma-direction.h>
> >  #include <linux/init.h>
> >  #include <linux/types.h>
> > +#ifndef CONFIG_SWIOTLB
> > +#include <linux/limits.h>
> > +#endif

No conditional includes please.  And the proper fix for the reported
issue is to stop poking into swiotlb internals in random drivers..