I have modified the patch again, and the new patch does not need to modify the upstream xz. <br />The link of the new patch:<br />&nbsp;<a href="https://lists.openembedded.org/g/openembedded-core/topic/meta_oe_patch_v2_xz_add/99334931">openembedded-core@lists.openembedded.org | [meta-oe][PATCH V2] xz: add ptest support</a><br /><br />Du