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Sun, 23 Feb 2020 19:39:48 -0800 (PST) Date: Mon, 24 Feb 2020 11:39:41 +0800 From: Martin Liu To: sumit.semwal@linaro.org, minchan@kernel.org, surenb@google.com, wvw@google.com Subject: Re: [PATCH] dma-buf: support 32bit DMA_BUF_SET_NAME ioctl Message-ID: <20200224033941.GB211610@google.com> References: <20200114134101.159194-1-liumartin@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200114134101.159194-1-liumartin@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Mailman-Approved-At: Mon, 24 Feb 2020 09:20:26 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, jenhaochen@google.com, liumartin@google.com, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, Jan 14, 2020 at 09:41:01PM +0800, Martin Liu wrote: CC more MLs for winder review. > This commit adds SET_NAME ioctl coversion to > support 32 bit ioctl. > > Signed-off-by: Martin Liu > --- > drivers/dma-buf/dma-buf.c | 22 +++++++++++++++++++++- > 1 file changed, 21 insertions(+), 1 deletion(-) > > diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c > index ce41cd9b758a..a73048b34843 100644 > --- a/drivers/dma-buf/dma-buf.c > +++ b/drivers/dma-buf/dma-buf.c > @@ -25,6 +25,7 @@ > #include > #include > #include > +#include > > #include > #include > @@ -409,13 +410,32 @@ static void dma_buf_show_fdinfo(struct seq_file *m, struct file *file) > dma_resv_unlock(dmabuf->resv); > } > > +#ifdef CONFIG_COMPAT > +static long dma_buf_ioctl_compat(struct file *file, unsigned int cmd, > + unsigned long arg) > +{ > + switch (_IOC_NR(cmd)) { > + case _IOC_NR(DMA_BUF_SET_NAME): > + /* Fix up pointer size*/ > + if (_IOC_SIZE(cmd) == sizeof(compat_uptr_t)) { > + cmd &= ~IOCSIZE_MASK; > + cmd |= sizeof(void *) << IOCSIZE_SHIFT; > + } > + break; > + } > + return dma_buf_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > +} > +#endif > + > static const struct file_operations dma_buf_fops = { > .release = dma_buf_release, > .mmap = dma_buf_mmap_internal, > .llseek = dma_buf_llseek, > .poll = dma_buf_poll, > .unlocked_ioctl = dma_buf_ioctl, > - .compat_ioctl = compat_ptr_ioctl, > +#ifdef CONFIG_COMPAT > + .compat_ioctl = dma_buf_ioctl_compat, > +#endif > .show_fdinfo = dma_buf_show_fdinfo, > }; > > -- > 2.25.0.rc1.283.g88dfdc4193-goog > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF80AC35669 for ; 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Sun, 23 Feb 2020 19:39:49 -0800 (PST) Received: from google.com ([2401:fa00:fc:1:28b:9f23:d296:c845]) by smtp.gmail.com with ESMTPSA id h3sm10345179pfo.102.2020.02.23.19.39.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Feb 2020 19:39:48 -0800 (PST) Date: Mon, 24 Feb 2020 11:39:41 +0800 From: Martin Liu To: sumit.semwal@linaro.org, minchan@kernel.org, surenb@google.com, wvw@google.com Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, liumartin@google.com, jenhaochen@google.com Subject: Re: [PATCH] dma-buf: support 32bit DMA_BUF_SET_NAME ioctl Message-ID: <20200224033941.GB211610@google.com> References: <20200114134101.159194-1-liumartin@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200114134101.159194-1-liumartin@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On Tue, Jan 14, 2020 at 09:41:01PM +0800, Martin Liu wrote: CC more MLs for winder review. > This commit adds SET_NAME ioctl coversion to > support 32 bit ioctl. > > Signed-off-by: Martin Liu > --- > drivers/dma-buf/dma-buf.c | 22 +++++++++++++++++++++- > 1 file changed, 21 insertions(+), 1 deletion(-) > > diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c > index ce41cd9b758a..a73048b34843 100644 > --- a/drivers/dma-buf/dma-buf.c > +++ b/drivers/dma-buf/dma-buf.c > @@ -25,6 +25,7 @@ > #include > #include > #include > +#include > > #include > #include > @@ -409,13 +410,32 @@ static void dma_buf_show_fdinfo(struct seq_file *m, struct file *file) > dma_resv_unlock(dmabuf->resv); > } > > +#ifdef CONFIG_COMPAT > +static long dma_buf_ioctl_compat(struct file *file, unsigned int cmd, > + unsigned long arg) > +{ > + switch (_IOC_NR(cmd)) { > + case _IOC_NR(DMA_BUF_SET_NAME): > + /* Fix up pointer size*/ > + if (_IOC_SIZE(cmd) == sizeof(compat_uptr_t)) { > + cmd &= ~IOCSIZE_MASK; > + cmd |= sizeof(void *) << IOCSIZE_SHIFT; > + } > + break; > + } > + return dma_buf_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); > +} > +#endif > + > static const struct file_operations dma_buf_fops = { > .release = dma_buf_release, > .mmap = dma_buf_mmap_internal, > .llseek = dma_buf_llseek, > .poll = dma_buf_poll, > .unlocked_ioctl = dma_buf_ioctl, > - .compat_ioctl = compat_ptr_ioctl, > +#ifdef CONFIG_COMPAT > + .compat_ioctl = dma_buf_ioctl_compat, > +#endif > .show_fdinfo = dma_buf_show_fdinfo, > }; > > -- > 2.25.0.rc1.283.g88dfdc4193-goog >