Thread (7 messages) flat view 7 messages, 5 authors, 2016-01-06

Re: [PATCH] net: filter: make JITs zero A for SKF_AD_ALU_XOR_X

From: Rabin Vincent <hidden>
Date: 2016-01-05 16:03:54
Also in: linux-arm-kernel, linux-mips, linuxppc-dev, lkml, sparclinux

On Tue, Jan 05, 2016 at 08:00:45AM -0800, Eric Dumazet wrote:
On Tue, 2016-01-05 at 16:23 +0100, Rabin Vincent wrote:
quoted
The SKF_AD_ALU_XOR_X ancillary is not like the other ancillary data
instructions since it XORs A with X while all the others replace A with
some loaded value.  All the BPF JITs fail to clear A if this is used as
the first instruction in a filter.
Is x86_64 part of this 'All' subset ? ;)
No, because it's an eBPF JIT.
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