linux-kernel - [PATCH 3.16 018/370] drm/gma500: Add compat ioctl

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Date:   Fri, 10 Mar 2017 11:46:22 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Patrik Jakobsson" <patrik.r.jakobsson@...il.com>,
        "Sean Paul" <seanpaul@...omium.org>
Subject: [PATCH 3.16 018/370] drm/gma500: Add compat ioctl

3.16.42-rc1 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: Ben Hutchings <ben@...adent.org.uk>
---
 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
@@ -464,6 +464,9 @@ 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,