This is a backport of the remaining patches from the below series:
https://lore.kernel.org/all/cover.1633464148.git.naveen.n.rao@linux.vnet.ibm.com/ (local)

Kindly apply to the longterm tree for v4.14

Thanks,
Naveen


Naveen N. Rao (3):
  powerpc/lib: Add helper to check if offset is within conditional
    branch range
  powerpc/bpf: Validate branch ranges
  powerpc/bpf: Fix BPF_SUB when imm == 0x80000000

 arch/powerpc/include/asm/code-patching.h |  1 +
 arch/powerpc/lib/code-patching.c         |  7 ++++-
 arch/powerpc/net/bpf_jit.h               | 33 +++++++++++++--------
 arch/powerpc/net/bpf_jit_comp64.c        | 37 +++++++++++++++---------
 4 files changed, 52 insertions(+), 26 deletions(-)


base-commit: 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e
-- 
2.33.1