Re: [PATCH v2] drm: import DMA_BUF module namespace

Stephen Rothwell
2021-10-31T02:22:08Z

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Hi Thomas,

On Fri, 29 Oct 2021 20:51:52 +0200 Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Am 27.10.21 um 23:25 schrieb Marcel Ziswiler:
> > From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
> >
> > Today's -next fails building arm64 defconfig as follows:
> >
> > ERROR: modpost: module drm_cma_helper uses symbol dma_buf_vunmap from
> > namespace DMA_BUF, but does not import it.
> > ERROR: modpost: module drm_cma_helper uses symbol dma_buf_vmap from
> > namespace DMA_BUF, but does not import it.
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> > Fixes: commit 4b2b5e142ff4 ("drm: Move GEM memory managers into modules")
> > Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
>
> I added this fix into drm-misc-next. Thanks!
>
> However, I had to import linux-next while doing so. 'Git am' did a
> 3-way merge, which may result in a conflict when the fix reaches
> linux-next again. I also updated the commit description.

You cannot merge linux-next into any tree, sorry. It rebases every day
(and so do several of the included trees).

Your fix patch should be sent to Greg KH and Arnd as the build failure
is introduced in the char-misc tree.