linux-kernel - Re: [PATCH v2] drm: import DMA

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Date:   Sun, 31 Oct 2021 13:21:55 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Thomas Zimmermann <tzimmermann@...e.de>, Greg KH <greg@...ah.com>
Cc:     Marcel Ziswiler <marcel@...wiler.com>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        dri-devel@...ts.freedesktop.org,
        open list <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Maxime Ripard <mripard@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Linux Kernel Functional Testing <lkft@...aro.org>
Subject: Re: [PATCH v2] drm: import DMA_BUF module namespace

Hi Thomas,

On Fri, 29 Oct 2021 20:51:52 +0200 Thomas Zimmermann <tzimmermann@...e.de> wrote:
>
> Am 27.10.21 um 23:25 schrieb Marcel Ziswiler:
> > From: Marcel Ziswiler <marcel.ziswiler@...adex.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@...aro.org>
> > Fixes: commit 4b2b5e142ff4 ("drm: Move GEM memory managers into modules")
> > Signed-off-by: Marcel Ziswiler <marcel.ziswiler@...adex.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.
-- 
Cheers,
Stephen Rothwell

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