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SubjectRe: [PATCH v6 3/3] drm/virtio: Support sync objects
Hi Dmitry,

On Sun, Jun 25, 2023 at 2:41 PM Dmitry Osipenko
<dmitry.osipenko@collabora.com> wrote:
> On 6/25/23 11:47, Geert Uytterhoeven wrote:
> > On Sun, Apr 16, 2023 at 1:55 PM Dmitry Osipenko
> > <dmitry.osipenko@collabora.com> wrote:
> >> Add sync object DRM UAPI support to VirtIO-GPU driver. Sync objects
> >> support is needed by native context VirtIO-GPU Mesa drivers, it also will
> >> be used by Venus and Virgl contexts.
> >>
> >> Reviewed-by; Emil Velikov <emil.velikov@collabora.com>
> >> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> >
> > Thanks for your patch!
> >
> >> --- a/drivers/gpu/drm/virtio/virtgpu_submit.c
> >> +++ b/drivers/gpu/drm/virtio/virtgpu_submit.c
> >
> >> +static int
> >> +virtio_gpu_parse_deps(struct virtio_gpu_submit *submit)
> >> +{
> >> + struct drm_virtgpu_execbuffer *exbuf = submit->exbuf;
> >> + struct drm_virtgpu_execbuffer_syncobj syncobj_desc;
> >> + size_t syncobj_stride = exbuf->syncobj_stride;
> >> + u32 num_in_syncobjs = exbuf->num_in_syncobjs;
> >> + struct drm_syncobj **syncobjs;
> >> + int ret = 0, i;
> >> +
> >> + if (!num_in_syncobjs)
> >> + return 0;
> >> +
> >> + /*
> >> + * kvalloc at first tries to allocate memory using kmalloc and
> >> + * falls back to vmalloc only on failure. It also uses GFP_NOWARN
> >
> > GFP_NOWARN does not exist.
>
> https://elixir.bootlin.com/linux/v6.4-rc7/source/include/linux/gfp_types.h#L38

That line defines "__GFP_NOWARN", not "GFP_NOWARN".
C is case- and underscore-sensitive. as is "git grep -w" ;-)

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

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