[PATCH bpf-next v2 0/8] Minor follow-up cleanups in BPF JITs and optimized imm emission

[Daniel Borkmann <daniel@iogearbox.net>]

This series follows up mostly with with some minor cleanups on top
of 'Move ld_abs/ld_ind to native BPF' as well as implements better
32/64 bit immediate load into register and saves tail call init on
cBPF for the arm64 JIT. Last but not least we add a couple of test
cases. For details please see individual patches. Thanks!

v1 -> v2:
  - Minor fix in i64_i16_blocks() to remove 24 shift.
  - Added last two patches.
  - Added Acks from prior round.

Daniel Borkmann (8):
  bpf, mips: remove unused function
  bpf, sparc: remove unused variable
  bpf, x64: clean up retpoline emission slightly
  bpf, arm32: save 4 bytes of unneeded stack space
  bpf, arm64: save 4 bytes of unneeded stack space
  bpf, arm64: optimize 32/64 immediate emission
  bpf, arm64: save 4 bytes in prologue when ebpf insns came from cbpf
  bpf: add ld64 imm test cases

 arch/arm/net/bpf_jit_32.c                   |  13 +---
 arch/arm64/net/bpf_jit_comp.c               | 115 +++++++++++++++++-----------
 arch/mips/net/ebpf_jit.c                    |  26 -------
 arch/sparc/net/bpf_jit_comp_64.c            |   1 -
 arch/x86/include/asm/nospec-branch.h        |  29 ++++---
 tools/testing/selftests/bpf/bpf_rand.h      |  80 +++++++++++++++++++
 tools/testing/selftests/bpf/test_verifier.c |  62 +++++++++++++++
 7 files changed, 228 insertions(+), 98 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/bpf_rand.h

-- 
2.9.5