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| author | Gerd Hoffmann <kraxel@redhat.com> | 2018-09-07 10:32:13 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2018-09-10 08:10:36 +0300 |
| commit | eae06120f1974e1a4cab0f80f4b07d27eb80ab32 (patch) | |
| tree | f2bf19a6891b5b6426e7743ed73f8ae0ac1a32ec /Documentation/cdrom | |
| parent | ea4584c2f2fe2d3a5792c397e2c5aff04db6f14c (diff) | |
| download | linux-eae06120f1974e1a4cab0f80f4b07d27eb80ab32.tar.xz | |
drm: refuse ADDFB2 ioctl for broken bigendian drivers
Drivers must set the quirk_addfb_prefer_host_byte_order quirk to make
the drm_mode_addfb() compat code work correctly on bigendian machines.
If they don't they interpret pixel_format values incorrectly for bug
compatibility, which in turn implies the ADDFB2 ioctl does not work
correctly then. So block it to make userspace fallback to ADDFB.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180907073213.20410-1-kraxel@redhat.com
Diffstat (limited to 'Documentation/cdrom')
0 files changed, 0 insertions, 0 deletions