On Wed, Aug 5, 2026 at 7:30 AM Josh Poimboeuf <[email protected]> wrote: > > A klp relocation section is .klp.rela.<objname>.<secname>, where objname > is the object being patched. > > klp-build wrongly derives objname from where the referenced symbol > lives, not where it's referenced. For a cross-module reference like > patched can_isotp code calling can.ko's can_rx_unregister(), that gives > .klp.rela.can..text rather than .klp.rela.can_isotp..text. Unless the > patch happens to patch can.ko as well, the relocation never gets applied > and the call goes off into the weeds. > > Name the intermediate section __klp_relocs.<objname> so post-link can > read the patched object's name from there. > > Fixes: dd590d4d57eb ("objtool/klp: Introduce klp diff subcommand for diffing > object files") > Reported-by: Joe Lawrence <[email protected]> > Link: https://lore.kernel.org/[email protected] > Signed-off-by: Josh Poimboeuf <[email protected]>
Acked-by: Song Liu <[email protected]>
