Function v4l2_subdev_get_locked_active_state is declared in include/media/v4l2-subdev.h only if CONFIG_MEDIA_CONTROLLER is defined, but then it is called in v4l2_subdev_is_streaming of drivers/media/v4l2-core/v4l2-subdev.c regardless of whether CONFIG_MEDIA_CONTROLLER is defined. This causes a compile-time error when CONFIG_MEDIA_CONTROLLER is undefined: drivers/media/v4l2-core/v4l2-subdev.c: In function 'v4l2_subdev_is_streaming': drivers/media/v4l2-core/v4l2-subdev.c:2253:17: error: implicit declaration of function 'v4l2_subdev_get_locked_active_state' [-Wimplicit-function-declaration] 2253 | state = v4l2_subdev_get_locked_active_state(sd); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/v4l2-core/v4l2-subdev.c:2253:15: error: assignment to 'struct v4l2_subdev_state *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 2253 | state = v4l2_subdev_get_locked_active_state(sd); | ^ make[5]: *** [scripts/Makefile.build:243: drivers/media/v4l2-core/v4l2-subdev.o] Error 1 My kernel config is unchanged since 6.6.88, and that version built fine, so evidently this regression was introduced between 6.6.88 and 6.6.89.
emerge --info ? Compiler version ?
(In reply to Mike Pagano from comment #1) > emerge --info ? Compiler version ? Not relevant, as the source code is visibly incorrect. I reported this upstream, as the problem exists in the vanilla sources too and continues to exist in 6.6.90.
