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linuxkpi: Add mising functions in <linux/kmsg_dump.h>
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Authored by dumbbell on Mar 8 2026, 1:20 PM.
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Details

Summary

The DRM generic code started to use kmsg_dump_get_buffer() and kmsg_dump_rewind() in Linux 6.11.

This is part of the update of DRM drivers to Linux 6.11.

Sponsored by: The FreeBSD Foundation

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rG FreeBSD src repository
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Event Timeline

sys/compat/linuxkpi/common/include/linux/kmsg_dump.h
91

Unknown if we want to return a string matching what Linux would do, or perhaps Unimplemented

dumbbell added inline comments.
sys/compat/linuxkpi/common/include/linux/kmsg_dump.h
91

The function returns "Disabled" on Linux when CONFIG_PRINTK is not defined. That’s what I replicated for our non-implemented functions.

I will change that to "Unknown".

dumbbell marked an inline comment as done.

Address comment from @emaste

emaste added inline comments.
sys/compat/linuxkpi/common/include/linux/kmsg_dump.h
91

Oh, missed that. In that case I'm fine with Disabled too.

This revision is now accepted and ready to land.Mar 9 2026, 1:11 AM