original_kernel/arch/s390/net
Daniel Borkmann 7b36f92934 bpf: provide helper that indicates eBPF was migrated
During recent discussions we had with Michael, we found that it would
be useful to have an indicator that tells the JIT that an eBPF program
had been migrated from classic instructions into eBPF instructions, as
only in that case A and X need to be cleared in the prologue. Such eBPF
programs do not set a particular type, but all have BPF_PROG_TYPE_UNSPEC.
Thus, introduce a small helper for cde66c2d88 ("s390/bpf: Only clear
A and X for converted BPF programs") and possibly others in future.

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>
2015-07-30 11:13:20 -07:00
..
Makefile
bpf_jit.S
bpf_jit.h s390/bpf: recache skb->data/hlen for skb_vlan_push/pop 2015-07-29 14:59:58 -07:00
bpf_jit_comp.c bpf: provide helper that indicates eBPF was migrated 2015-07-30 11:13:20 -07:00