Subject: [PATCH] Revert "kallsyms: unexport kallsyms_lookup_name() and
 kallsyms_on_each_symbol()"

This reverts commit 0bd476e6c67190b5eb7b6e105c8db8ff61103281.
https://lwn.net/Articles/813350/

anbox kernel modules require kallsyms_lookup_name(), they are not propietary stuff like e.g. Nvidia, I want it to work more than trying to fight with violations of GPL where I do not have enough power.

Update for 5.15.28

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -203,6 +203,7 @@
 	}
 	return module_kallsyms_lookup_name(name);
 }
+EXPORT_SYMBOL_GPL(kallsyms_lookup_name);
 
 #ifdef CONFIG_LIVEPATCH
 /*
@@ -226,6 +227,7 @@
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(kallsyms_on_each_symbol);
 #endif /* CONFIG_LIVEPATCH */
 
 static unsigned long get_symbol_pos(unsigned long addr,