linux-kernel - Re: [PATCH v6 01/37] fix missing vmalloc.h includes

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Date: Wed, 3 Apr 2024 18:57:28 -0400
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: David Hildenbrand <david@...hat.com>
Cc: Nathan Chancellor <nathan@...nel.org>, 
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Subject: Re: [PATCH v6 01/37] fix missing vmalloc.h includes

On Wed, Apr 03, 2024 at 11:48:12PM +0200, David Hildenbrand wrote:
> On 03.04.24 23:41, Kent Overstreet wrote:
> > On Wed, Apr 03, 2024 at 02:12:40PM -0700, Nathan Chancellor wrote:
> > > On Thu, Mar 21, 2024 at 09:36:23AM -0700, Suren Baghdasaryan wrote:
> > > > From: Kent Overstreet <kent.overstreet@...ux.dev>
> > > > 
> > > > The next patch drops vmalloc.h from a system header in order to fix
> > > > a circular dependency; this adds it to all the files that were pulling
> > > > it in implicitly.
> > > > 
> > > > Signed-off-by: Kent Overstreet <kent.overstreet@...ux.dev>
> > > > Signed-off-by: Suren Baghdasaryan <surenb@...gle.com>
> > > > Reviewed-by: Pasha Tatashin <pasha.tatashin@...een.com>
> > > 
> > > I bisected an error that I see when building ARCH=loongarch allmodconfig
> > > to commit 302519d9e80a ("asm-generic/io.h: kill vmalloc.h dependency")
> > > in -next, which tells me that this patch likely needs to contain
> > > something along the following lines, as LoongArch was getting
> > > include/linux/sizes.h transitively through the vmalloc.h include in
> > > include/asm-generic/io.h.
> > 
> > gcc doesn't appear to be packaged for loongarch for debian (most other
> > cross compilers are), so that's going to make it hard for me to test
> > anything...
> 
> The latest cross-compilers from Arnd [1] include a 13.2.0 one for
> loongarch64 that works for me. Just in case you haven't heard of Arnds work
> before and want to give it a shot.
> 
> [1] https://mirrors.edge.kernel.org/pub/tools/crosstool/

Thanks for the pointer - but something seems to be busted with the
loongarch build, if I'm not mistaken; one of the included headers
references loongarch-def.h, but that's not included.