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Commit 709f6c58 authored by Alexei Starovoitov's avatar Alexei Starovoitov Committed by David S. Miller
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sparc: bpf_jit: add SKF_AD_PKTTYPE support to JIT 



commit 233577a2 ("net: filter: constify detection of pkt_type_offset")
allows us to implement simple PKTTYPE support in sparc JIT

Signed-off-by: default avatarAlexei Starovoitov <ast@plumgrid.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bf3c228d

arch/sparc/net/bpf_jit_comp.c

+2 −7
Original line number Original line Diff line number Diff line
@@ -579,16 +579,11 @@ void bpf_jit_compile(struct bpf_prog *fp) 
			case BPF_ANC | SKF_AD_PROTOCOL:

			case BPF_ANC | SKF_AD_PROTOCOL:

				emit_skb_load16(protocol, r_A);

				emit_skb_load16(protocol, r_A);

				break;

				break;

#if 0

				/* GCC won't let us take the address of

				 * a bit field even though we very much

				 * know what we are doing here.

				 */

			case BPF_ANC | SKF_AD_PKTTYPE:

			case BPF_ANC | SKF_AD_PKTTYPE:

				__emit_skb_load8(pkt_type, r_A);

				__emit_skb_load8(__pkt_type_offset, r_A);

				emit_andi(r_A, PKT_TYPE_MAX, r_A);

				emit_alu_K(SRL, 5);

				emit_alu_K(SRL, 5);

				break;

				break;

#endif

			case BPF_ANC | SKF_AD_IFINDEX:

			case BPF_ANC | SKF_AD_IFINDEX:

				emit_skb_loadptr(dev, r_A);

				emit_skb_loadptr(dev, r_A);

				emit_cmpi(r_A, 0);

				emit_cmpi(r_A, 0);