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

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Message-ID: <eadfa89d-1c39-be25-abaf-4150396e1024@suse.de>
Date:   Sun, 31 Oct 2021 19:13:17 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Stephen Rothwell <sfr@...b.auug.org.au>, 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

Am 31.10.21 um 03:21 schrieb Stephen Rothwell:
> 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).

No no, don't worry. I meant 'import' as in 'git remote add linux-next'. 
I was actually complaining that the provided fix was not against a DRM tree.

Best regards
Thomas

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

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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