FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git kspp/postinit-readonly
commit 5bb7916e504fc661029e48a183bc15fbfdea9294 ("x86: make CONFIG_DEBUG_RODATA non-optional")

We found the following new message in kernel log after your commit.

 [    5.714703] Write protecting the kernel read-only data: 4724k
+[    5.715108] rodata_test: test data was not read only

Thanks,
Ying Huang