Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.13 36/43] drm/i915/perf: fix perf enable/disable ioctls with 32bits userspace | Date | Tue, 31 Oct 2017 10:55:56 +0100 |
| |
4.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
commit 7277f755048da562eb2489becacd38d0d05e1e06 upstream.
The compat callback was missing and triggered failures in 32bits userspace when enabling/disable the perf stream. We don't require any particular processing here as these ioctls don't take any argument.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Fixes: eec688e1420 ("drm/i915: Add i915 perf infrastructure") Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20171024152728.4873-1-lionel.g.landwerlin@intel.com (cherry picked from commit 191f896085cf3b5d85920d58a759da4eea141721) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/i915/i915_perf.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -2480,6 +2480,10 @@ static const struct file_operations fops .poll = i915_perf_poll, .read = i915_perf_read, .unlocked_ioctl = i915_perf_ioctl, + /* Our ioctl have no arguments, so it's safe to use the same function + * to handle 32bits compatibility. + */ + .compat_ioctl = i915_perf_ioctl, };
| |