linux-kernel - Re: [Linaro-mm-sig] Re: [PATCH] dma-buf: Correct the documentation of name and exp

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Date:   Thu, 30 Nov 2023 14:26:18 +0100
From:   Christian König <ckoenig.leichtzumerken@...il.com>
To:     Alex Deucher <alexdeucher@...il.com>,
        Christian König <christian.koenig@....com>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linaro-mm-sig@...ts.linaro.org,
        Ramesh Errabolu <Ramesh.Errabolu@....com>,
        amd-gfx@...ts.freedesktop.org, sumit.semwal@...aro.org,
        linux-media@...r.kernel.org
Subject: Re: [Linaro-mm-sig] Re: [PATCH] dma-buf: Correct the documentation of
 name and exp_name symbols

Am 29.11.23 um 22:18 schrieb Alex Deucher:
> On Wed, Nov 22, 2023 at 1:58 PM Christian König
> <christian.koenig@....com> wrote:
>> Am 22.11.23 um 17:05 schrieb Ramesh Errabolu:
>>> Fix the documentation of struct dma_buf members name and exp_name
>>> as to how these members are to be used and accessed.
>>>
>>> Signed-off-by: Ramesh Errabolu <Ramesh.Errabolu@....com>
>> Reviewed-by: Christian König <christian.koenig@....com>
> Please apply this to drm-misc.

Done, thanks for the reminder.

Christian.

>
> Alex
>
>>> ---
>>>    include/linux/dma-buf.h | 11 +++++++----
>>>    1 file changed, 7 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
>>> index 3f31baa3293f..8ff4add71f88 100644
>>> --- a/include/linux/dma-buf.h
>>> +++ b/include/linux/dma-buf.h
>>> @@ -343,16 +343,19 @@ struct dma_buf {
>>>        /**
>>>         * @exp_name:
>>>         *
>>> -      * Name of the exporter; useful for debugging. See the
>>> -      * DMA_BUF_SET_NAME IOCTL.
>>> +      * Name of the exporter; useful for debugging. Must not be NULL
>>>         */
>>>        const char *exp_name;
>>>
>>>        /**
>>>         * @name:
>>>         *
>>> -      * Userspace-provided name; useful for accounting and debugging,
>>> -      * protected by dma_resv_lock() on @resv and @name_lock for read access.
>>> +      * Userspace-provided name. Default value is NULL. If not NULL,
>>> +      * length cannot be longer than DMA_BUF_NAME_LEN, including NIL
>>> +      * char. Useful for accounting and debugging. Read/Write accesses
>>> +      * are protected by @name_lock
>>> +      *
>>> +      * See the IOCTLs DMA_BUF_SET_NAME or DMA_BUF_SET_NAME_A/B
>>>         */
>>>        const char *name;
>>>
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