linux-kernel - [PATCH 0/2] drm: update the ioctl handler

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Date:   Fri, 13 Aug 2021 16:54:48 +0800
From:   Desmond Cheong Zhi Xi <desmondcheongzx@...il.com>
To:     maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, airlied@...ux.ie, daniel@...ll.ch,
        sumit.semwal@...aro.org, christian.koenig@....com
Cc:     Desmond Cheong Zhi Xi <desmondcheongzx@...il.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
        intel-gfx@...ts.freedesktop.org, skhan@...uxfoundation.org,
        gregkh@...uxfoundation.org,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: [PATCH 0/2] drm: update the ioctl handler

Hi,

Finally got around to it. This patchset implements some updates to the
drm ioctl handler that were first raised by Daniel Vetter in [1].
Namely:

- Flush concurrent processes that can change the modeset when
DRM masters are set/dropped or a lease is revoked
- Unexport drm_ioctl_permit()

Thoughts and comments would be very appreciated.

Link: https://lore.kernel.org/lkml/YN9kAFcfGoB13x7f@phenom.ffwll.local/ [1]

Best wishes,
Desmond

Desmond Cheong Zhi Xi (2):
  drm: avoid races with modesetting rights
  drm: unexport drm_ioctl_permit

 drivers/gpu/drm/drm_auth.c           | 17 +++++++++---
 drivers/gpu/drm/drm_client_modeset.c | 10 ++++---
 drivers/gpu/drm/drm_drv.c            |  2 ++
 drivers/gpu/drm/drm_fb_helper.c      | 20 ++++++++------
 drivers/gpu/drm/drm_internal.h       |  5 ++--
 drivers/gpu/drm/drm_ioctl.c          | 40 +++++++++++++++-------------
 include/drm/drm_device.h             | 11 ++++++++
 include/drm/drm_ioctl.h              |  8 +++++-
 8 files changed, 77 insertions(+), 36 deletions(-)

-- 
2.25.1