Re: drivers/gpu/drm/i915/i915.prelink.o: warning: objtool: __intel_wait_for_register_fw.cold()+0xce: relocation to !ENDBR: vlv_allow_gt_wake.cold+0x0

Peter Zijlstra
2022-04-06T11:20:31Z

On Tue, Apr 05, 2022 at 10:32:51PM -0700, Josh Poimboeuf wrote:
> More broadly, this issue could theoretically happen in some other places
> throughout the kernel tree, since _THIS_IP_ is fundamentally unreliable
> as currently written.
>
> So we could look at making _THIS_IP_ more predictable.
>
> Inline asm would work better ("lea 0(%rip), %[rip]"), but then you need
> an arch-dependent implementation...

Well, there's a ton of _THIS_IP_ instances all around, and it would be
unfortunate to have them grow into actual code :/