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 <stable@xxxxxxxxxxxxxxx> know about it.
>From 888022c0473d079bff9b47fb50434b1f20f8f37f Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Date: Tue, 21 Feb 2017 14:21:01 +0100
Subject: dma-buf: add support for compat ioctl
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From: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
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.
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Acked-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/1487683261-2655-1-git-send-email-m.szyprowski@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma-buf/dma-buf.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -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 m.szyprowski@xxxxxxxxxxx are
queue-4.9/dma-buf-add-support-for-compat-ioctl.patch