linux-kernel - Re: [PATCH v2 7/8] dma-buf: remove useless FMODE

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Date:   Wed, 29 Jun 2022 16:00:39 +0530
From:   Sumit Semwal <sumit.semwal@...aro.org>
To:     "Jason A. Donenfeld" <Jason@...c4.com>,
        linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk,
        Jens Axboe <axboe@...nel.dk>, linux-fsdevel@...r.kernel.org,
        Sumit Semwal <sumit.semwal@...aro.org>,
        dri-devel@...ts.freedesktop.org,
        Christian König <christian.koenig@....com>
Subject: Re: [PATCH v2 7/8] dma-buf: remove useless FMODE_LSEEK flag

On Mon, 27 Jun 2022 at 14:38, Daniel Vetter <daniel@...ll.ch> wrote:
>
> On Sat, Jun 25, 2022 at 01:01:14PM +0200, Jason A. Donenfeld wrote:
> > This is already set by anon_inode_getfile(), since dma_buf_fops has
> > non-NULL ->llseek, so we don't need to set it here too.
> >
> > Suggested-by: Al Viro <viro@...iv.linux.org.uk>
> > Cc: Sumit Semwal <sumit.semwal@...aro.org>
> > Cc: Christian König <christian.koenig@....com>
> > Cc: dri-devel@...ts.freedesktop.org
> > Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
>
> I'm assuming this is part of a vfs cleanup and lands through that tree?
> For that:
>
> Acked-by: Daniel Vetter <daniel.vetter@...ll.ch>
FWIW, please feel free to add
Acked-by: Sumit Semwal <sumit.semwal@...aro.org>

>
> > ---
> >  drivers/dma-buf/dma-buf.c | 1 -
> >  1 file changed, 1 deletion(-)
> >
> > diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> > index 32f55640890c..3f08e0b960ec 100644
> > --- a/drivers/dma-buf/dma-buf.c
> > +++ b/drivers/dma-buf/dma-buf.c
> > @@ -549,7 +549,6 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info)
> >               goto err_dmabuf;
> >       }
> >
> > -     file->f_mode |= FMODE_LSEEK;
> >       dmabuf->file = file;
> >
> >       mutex_init(&dmabuf->lock);
> > --
> > 2.35.1
> >
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch


Best,
Sumit.