linux-kernel - [PATCH 4.8 34/96] drm/gma500: Add compat ioctl

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Message-Id: <20170106214229.120031664@linuxfoundation.org>
Date:   Fri,  6 Jan 2017 22:43:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
        Sean Paul <seanpaul@...omium.org>
Subject: [PATCH 4.8 34/96] drm/gma500: Add compat ioctl

4.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Patrik Jakobsson <patrik.r.jakobsson@...il.com>

commit 0a97c81a9717431e6c57ea845b59c3c345edce67 upstream.

Hook up drm_compat_ioctl to support 32-bit userspace on 64-bit kernels.
It turns out that N2600 and N2800 comes with 64-bit enabled. We
previously assumed there where no such systems out there.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@...il.com>
Signed-off-by: Sean Paul <seanpaul@...omium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161101144315.2955-1-patrik.r.jakobsson@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/gma500/psb_drv.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -473,6 +473,9 @@ static const struct file_operations psb_
 	.open = drm_open,
 	.release = drm_release,
 	.unlocked_ioctl = psb_unlocked_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.mmap = drm_gem_mmap,
 	.poll = drm_poll,
 	.read = drm_read,