On Mon, Jul 08, 2019 at 02:45:23PM +0200, Arnd Bergmann wrote: > Apparently this was a bit premature, at least I still get this > warning with gcc-8.1: > > kernel/bpf/core.o: warning: objtool: ___bpf_prog_run()+0x44d2: sibling call > from callable instruction with modified stack frame > > This reverts commit b22cf36c189f31883ad0238a69ccf82aa1f3b16b. > > Signed-off-by: Arnd Bergmann <[email protected]>
Yes, I have been working on a fix. The impact is that ORC unwinding is broken in this function for CONFIG_RETPOLINE=n. I don't think we want to revert this patch though, because that will broaden the impact to the CONFIG_RETPOLINE=y case. Anyway I hope to have fixes soon. -- Josh
