[memcg:since-4.15 230/233] Warning: ffffffff81305778: f7 0f 1f 80 00 00 testl $0x801f,(%rdi)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git since-4.15
head:   29e33c6d38159c84b3bc8dd916696134f4b8b669
commit: 4aeb2fbfaa77b514a577013386fbaedd14fb74c7 [230/233] mm/ksm.c: make stable_node_dup() static
config: x86_64-federa-25 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        git checkout 4aeb2fbfaa77b514a577013386fbaedd14fb74c7
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

quoted

Warning: ffffffff81305778: f7 0f 1f 80 00 00 testl $0x801f,(%rdi)

   Warning: objdump says 6 bytes, but insn_get_length() says 2
   Warning: arch/x86/tools/test_get_len found difference at <kernfs_find_ns>:ffffffff81305a50

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