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bpf: change back to orig prog on too many passes 

If after too many passes still no image could be emitted, then
swap back to the original program as we do in all other cases
and don't use the one with blinding.

Fixes: 959a757916 ("bpf, x86: add support for constant blinding")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2017-01-07 00:26:33 +01:00 committed by David S. Miller
parent f5992b72eb
commit 9d5ecb09d5
1 changed files with 2 additions and 0 deletions
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2
arch/x86/net/bpf_jit_comp.c
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@ -1172,6 +1172,8 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
set_memory_ro((unsigned long)header, header->pages); set_memory_ro((unsigned long)header, header->pages);
prog->bpf_func = (void *)image; prog->bpf_func = (void *)image;
prog->jited = 1; prog->jited = 1;
} else {
prog = orig_prog;
} }
out_addrs: out_addrs: