linuxkpi: Replicate Linux #includes between headers

[dumbbell]

Summary

The DRM drivers (and probably other parts of the Linux kernel) had a significant cleanup w.r.t. which source file includes what in Linux 6.10. Nonetheless, the DRM drivers still depend on implicit namespace pollution because some source files do not include all the headers they should.

This cleanup broke the build with FreeBSD because we do not replicate the same #include directives everywhere.

This commit adds the same #include directives in several headers in order to get the same namespace pollution.

This fixes the build of the DRM drivers from Linux 6.10. An example is drm_dp_tunnel.c which needed str_yes_no() defined by <linux/string_helpers.h> (technically <linux/string_choices.h> in Linux). It gets it through:

<linux/i2c.h> -> <linux/regulator/consumer.h> -> <linux/suspend.h> ->
<linux/swap.h> -> <linux/memcontrol.h> -> <linux/cgroup.h> ->
<linux/seq_file.h> -> <linux/string_helpers.h>

This is part of the update of DRM drivers to Linux 6.10.

Sponsored by: The FreeBSD Foundation

[emaste]

sys/compat/linuxkpi/common/include/linux/cgroup.h

34

Looks like latest Linux version includes linux/list.h instead

sys/compat/linuxkpi/common/include/linux/regulator/consumer.h

7–29

If desired you can leave out the license block and have just the SPDX tag.

[dumbbell]

Thank you! I addressed your comments.

[bz]

sys/compat/linuxkpi/common/include/linux/memcontrol.h

43

Would have been no need for defined() in the comment here either.