stable/13 - amdgpu broken with n253286-d8a88ec38149

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From: Jonathan Vasquez <jon_at_xyinn.org>
Date: Sat, 17 Dec 2022 00:49:52 UTC

Hey all,

it seems that my AMD Radeon 6900 XT doesn't load the amdgpu properly anymore. The machine will crash immediately upon load. After a bisect, I found the posted commit. This card uses the sienna_cichlid flavor for gpu-firmware-amd-kmod.

commit d8a88ec381498f5942403088d28ee325b92e9a78
Author: Doug Moore <dougm@FreeBSD.org>
Date: Fri Dec 16 03:15:28 2022 -0600

rb_tree: restore binary compat w/ 13

A change to RB_COLOR_INSERT, when merged into stable/13, broke binary
compatibility. For 13, call the new function RB_DO_COLOR_INSERT, and
restore the old function with the original name and parameters. Define
RB_COLOR_INSERT in tree.h, and remove changes to the linux rbtree
header.

Another change altered the order of pointers in the RB_ENTRY struct.
For 13, restore the original order.

Reported by: manu
Reviewed by: hselasky
Tested by: manu
Differential Revision: https://reviews.freebsd.org/D37716

sys/compat/linuxkpi/common/include/linux/rbtree.h | 11 ++----
sys/sys/tree.h | 46 ++++++++++++++++-------

Jonathan Vasquez
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