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test_bpf: assign type to native eBPF test cases 

As JITs start to perform optimizations whether to clear A and X on eBPF
programs in the prologue, we should actually assign a program type to the
native eBPF test cases. It doesn't really matter which program type, as
these instructions don't go through the verifier, but it needs to be a
type != BPF_PROG_TYPE_UNSPEC. This reflects eBPF programs loaded via bpf(2)
system call (!= type unspec) vs. classic BPF to eBPF migrations (== type
unspec).

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2015-07-30 12:42:46 +02:00 committed by David S. Miller
parent ce7fa78ce1
commit 4962fa10f3
1 changed files with 2 additions and 0 deletions
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2
lib/test_bpf.c
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@ -4613,6 +4613,8 @@ static struct bpf_prog *generate_filter(int which, int *err)
}
fp->len = flen;
/* Type doesn't really matter here as long as it's not unspec. */
fp->type = BPF_PROG_TYPE_SOCKET_FILTER;
memcpy(fp->insnsi, fptr, fp->len * sizeof(struct bpf_insn));
bpf_prog_select_runtime(fp);