netdev - [PATCH 0/2] powerpc/bpf: DIV64 instruction fix

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Message-Id: <cover.1560364574.git.naveen.n.rao@linux.vnet.ibm.com>
Date:   Thu, 13 Jun 2019 00:21:38 +0530
From:   "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>
Subject: [PATCH 0/2] powerpc/bpf: DIV64 instruction fix

The first patch updates DIV64 overflow tests to properly detect error 
conditions. The second patch fixes powerpc64 JIT to generate the proper 
unsigned division instruction for BPF_ALU64.

- Naveen

Naveen N. Rao (2):
  bpf: fix div64 overflow tests to properly detect errors
  powerpc/bpf: use unsigned division instruction for 64-bit operations

 arch/powerpc/include/asm/ppc-opcode.h              |  1 +
 arch/powerpc/net/bpf_jit.h                         |  2 +-
 arch/powerpc/net/bpf_jit_comp64.c                  |  8 ++++----
 .../testing/selftests/bpf/verifier/div_overflow.c  | 14 ++++++++++----
 4 files changed, 16 insertions(+), 9 deletions(-)

-- 
2.21.0