On Fri, May 22, 2026 at 03:58:53PM -0700, T.J. Mercier wrote:
> After commit fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a
> module") the system dma-buf heaps can be built as a module. The
> system_cc_shared heap uses set_memory_encrypted and set_memory_decrypted
> but those functions are not exported on powerpc. This can result in a
> build error like:I'd much rather revert the above commit. Yes, x86 has exported these since 2017, but that's a really bad idea, and we should fix it instead of spreading the export. Setting memory decrypted is a dangerous operations and should only be available to core code. We should have various allocators for decrypted code, but not export the functionality to random code.
