linux-kernel - [PATCH] drm/vgem: add compat

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Message-Id: <20170715031212.108695-1-briannorris@chromium.org>
Date:   Fri, 14 Jul 2017 20:12:12 -0700
From:   Brian Norris <briannorris@...omium.org>
To:     Sean Paul <seanpaul@...omium.org>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>
Cc:     <linux-kernel@...r.kernel.org>, dri-devel@...ts.freedesktop.org,
        Brian Norris <briannorris@...omium.org>
Subject: [PATCH] drm/vgem: add compat_ioctl support

DRM drivers should supply a compat version if they're going to provide
an ioctl implementation at all. This can confuse 32-bit user space on a
64-bit system.

Signed-off-by: Brian Norris <briannorris@...omium.org>
---
 drivers/gpu/drm/vgem/vgem_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index 9fee38a942c4..3835656e2baf 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -220,6 +220,7 @@ static const struct file_operations vgem_driver_fops = {
 	.poll		= drm_poll,
 	.read		= drm_read,
 	.unlocked_ioctl = drm_ioctl,
+	.compat_ioctl	= drm_compat_ioctl,
 	.release	= drm_release,
 };
 
-- 
2.13.2.932.g7449e964c-goog