From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 0/2] powerpc/bpf: DIV64 instruction fix
Date: Thu, 13 Jun 2019 00:21:38 +0530 [thread overview]
Message-ID: <cover.1560364574.git.naveen.n.rao@linux.vnet.ibm.com> (raw)
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
next reply other threads:[~2019-06-12 18:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 18:51 Naveen N. Rao [this message]
2019-06-12 18:51 ` [PATCH 1/2] bpf: fix div64 overflow tests to properly detect errors Naveen N. Rao
2019-06-12 18:51 ` [PATCH 2/2] powerpc/bpf: use unsigned division instruction for 64-bit operations Naveen N. Rao
2019-06-13 5:06 ` [PATCH 0/2] powerpc/bpf: DIV64 instruction fix Sandipan Das
2019-06-13 21:11 ` Daniel Borkmann
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