[PATCH 5.10] module: treat exit sections the same as init sections when !CONFIG_MODULE_UNLOAD

[Joerg Vehlow <lkml@xxxxxxxxxxx>]

Hi,

this mainline patch 33121347fb1c359bd6e3e680b9f2c6ced5734a8 should be
applied to 5.15 as well.
Without loading of some modules fails, if
 1. MODULE_UNLOAD=n
 2. Architecture is aarch64 (maybe others as well)
 3. KASLR is active

Without this patch the symbol .exit.text is not relocated and when the
linker generated a relative 32 bit relocation(PREL32) and the module is
loaded far enough away from the default loading address, it will trigger
a relocation overflow like this:

module algif_hash: overflow in relocation type 261 val ffff800010051c20

This happens to all modules, that use BUG in the exit section or if the
compiler generates a jump table in the exit section.

Thanks,
Joerg