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Patch "dma-buf: add support for compat ioctl" has been added to the 4.9-stable tree

PATCH [email protected] 1 participant 1 message Apr 16, 2017

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This is a note to let you know that I've just added the patch titled

dma-buf: add support for compat ioctl

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
dma-buf-add-support-for-compat-ioctl.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 888022c0473d079bff9b47fb50434b1f20f8f37f Mon Sep 17 00:00:00 2001

From: Marek Szyprowski <[email protected]>
Date: Tue, 21 Feb 2017 14:21:01 +0100
Subject: dma-buf: add support for compat ioctl
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Marek Szyprowski <[email protected]>

commit 888022c0473d079bff9b47fb50434b1f20f8f37f upstream.

Add compat ioctl support to dma-buf. This lets one to use DMA_BUF_IOCTL_SYNC ioctl from 32bit application on 64bit kernel. Data structures for both 32 and 64bit modes are same, so there is no need for additional translation layer.

---
 drivers/dma-buf/dma-buf.c |    3 +++
 1 file changed, 3 insertions(+)
drivers/dma-buf/dma-buf.c +3 -0
@@ -303,6 +303,9 @@ static const struct file_operations dma_
 	.llseek		= dma_buf_llseek,
 	.poll		= dma_buf_poll,
 	.unlocked_ioctl	= dma_buf_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= dma_buf_ioctl,
+#endif
 };
 
 /*

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/dma-buf-add-support-for-compat-ioctl.patch