objtool: warning "stack state mismatch" when calling __noreturn functions

[arndb]

This happens in reiserfs_panic() and GEM_BUG_ON(), but nowhere else in the kernel

fs/reiserfs/do_balan.o: warning: objtool: replace_key()+0x1ba: stack state mismatch: cfa1=7+72 cfa2=7+88
fs/reiserfs/do_balan.o: warning: objtool: balance_leaf()+0x4ab4: stack state mismatch: cfa1=7+312 cfa2=7+328
fs/reiserfs/lbalance.o: warning: objtool: leaf_copy_boundary_item()+0xc6e: stack state mismatch: cfa1=7+144 cfa2=7+152
fs/reiserfs/ibalance.o: warning: objtool: balance_internal()+0x189d: stack state mismatch: cfa1=7+312 cfa2=7+336
fs/reiserfs/ibalance.o: warning: objtool: internal_insert_key()+0x263: stack state mismatch: cfa1=7+104 cfa2=7+120
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: check_relocations()+0x89: stack state mismatch: cfa1=7+32 cfa2=-1+0
drivers/gpu/drm/i915/gem/i915_gem_mman.o: warning: objtool: __igt_mmap_revoke()+0x1e7: stack state mismatch: cfa1=7+64 cfa2=-1+0

0xF91C6098-config.gz

[nathanchance]

Is this a dupe of #612?

[arndb]

Yes, I only looked for issues with 'objtool' in the subject, so I did not find that.