The connector->eld is accessed by the .get_eld() callback. This access
can collide with the drm_edid_to_eld() updating the data at the same
time. Add drm_connector.eld_mutex to protect the data from concurrenct
access.
The individual drivers were just compile tested. I propose to merge the
drm_connector and bridge drivers through drm-misc, allowing other
maintainers either to ack merging through drm-misc or merging the
drm-misc into their tree and then picking up correcponding patch.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
Dmitry Baryshkov (10):
drm/connector: add mutex to protect ELD from concurrent access
drm/bridge: anx7625: use eld_mutex to protect access to connector->eld
drm/bridge: ite-it66121: use eld_mutex to protect access to connector->eld
drm/amd/display: use eld_mutex to protect access to connector->eld
drm/exynos: hdmi: use eld_mutex to protect access to connector->eld
drm/i915/audio: use eld_mutex to protect access to connector->eld
drm/msm/dp: use eld_mutex to protect access to connector->eld
drm/radeon: use eld_mutex to protect access to connector->eld
drm/sti: hdmi: use eld_mutex to protect access to connector->eld
drm/vc4: hdmi: use eld_mutex to protect access to connector->eld
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++
drivers/gpu/drm/bridge/analogix/anx7625.c | 2 ++
drivers/gpu/drm/bridge/ite-it66121.c | 2 ++
drivers/gpu/drm/drm_connector.c | 1 +
drivers/gpu/drm/drm_edid.c | 4 ++++
drivers/gpu/drm/exynos/exynos_hdmi.c | 2 ++
drivers/gpu/drm/i915/display/intel_audio.c | 3 +++
drivers/gpu/drm/msm/dp/dp_audio.c | 2 ++
drivers/gpu/drm/radeon/radeon_audio.c | 2 ++
drivers/gpu/drm/sti/sti_hdmi.c | 2 ++
drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ++--
include/drm/drm_connector.h | 5 ++++-
12 files changed, 28 insertions(+), 3 deletions(-)
---
base-commit: 44cff6c5b0b17a78bc0b30372bcd816cf6dd282a
change-id: 20241201-drm-connector-eld-mutex-8a39a35e9a38
Best regards,
--
Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
