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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Mon, 20 Apr 2020 11:26:19 +0200
Message-ID: <CAMuHMdXO0TV09XYxyxjEA8YdvXVwg1u6Zs=z3PzCVb9Mw5boTQ@mail.gmail.com>
Subject: Re: [PATCH 26/29] mm: remove vmalloc_user_node_flags
To:     Christoph Hellwig <hch@lst.de>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
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        Sumit Semwal <sumit.semwal@linaro.org>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
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        Nitin Gupta <ngupta@vflare.org>,
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Hi Christoph,

On Tue, Apr 14, 2020 at 3:22 PM Christoph Hellwig <hch@lst.de> wrote:
> Open code it in __bpf_map_area_alloc, which is the only caller.  Also
> clean up __bpf_map_area_alloc to have a single vmalloc call with
> slightly different flags instead of the current two different calls.
>
> For this to compile for the nommu case add a __vmalloc_node_range stub
> to nommu.c.

Apparently your nommu-cross-compilers are in quarantaine? ;-)

> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> Acked-by: Johannes Weiner <hannes@cmpxchg.org>

> --- a/mm/nommu.c
> +++ b/mm/nommu.c
> @@ -150,6 +150,14 @@ void *__vmalloc(unsigned long size, gfp_t gfp_mask)
>  }
>  EXPORT_SYMBOL(__vmalloc);
>
> +void *__vmalloc_node_range(unsigned long size, unsigned long align,
> +               unsigned long start, unsigned long end, gfp_t gfp_mask,
> +               pgprot_t prot, unsigned long vm_flags, int node,
> +               const void *caller)
> +{
> +       return __vmalloc(size, flags);

On Mon, Apr 20, 2020 at 10:39 AM <noreply@ellerman.id.au> wrote:
> FAILED linux-next/m5272c3_defconfig/m68k-gcc8 Mon Apr 20, 18:38
>
> http://kisskb.ellerman.id.au/kisskb/buildresult/14213623/
>
> mm/nommu.c:158:25: error: 'flags' undeclared (first use in this function); did you mean 'class'?

"return __vmalloc(size, gfp_mask);", I assume?

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds