commit c59eed111bff70bbb8c85abc73374d4da0848c79
author Heiko Carstens <heiko.carstens@de.ibm.com> Mon Sep 24 08:31:35 2012 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> Wed Sep 26 15:45:28 2012 +0200
tree d34c887f56e99caccc7c99649e8a6afa3156800f
parent 022912575ce3135517ec1cbfb8d4b240e0821feb

s390/bpf,jit: add support for BPF_S_ANC_ALU_XOR_X instruction

Add support for new BPF_S_ANC_ALU_XOR_X instruction which got added
with ffe06c17 "filter: add XOR operation".

s390 version of 4bfaddf1 "x86 bpf_jit: support BPF_S_ANC_ALU_XOR_X instruction".

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/net/bpf_jit_comp.c

diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index f57f0c3..9b355b4 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -367,6 +367,11 @@
 			/* o %r5,<d(K)>(%r13) */
 			EMIT4_DISP(0x5650d000, EMIT_CONST(K));
 		break;
+	case BPF_S_ANC_ALU_XOR_X: /* A ^= X; */
+		jit->seen |= SEEN_XREG;
+		/* xr %r5,%r12 */
+		EMIT2(0x175c);
+		break;
 	case BPF_S_ALU_LSH_X: /* A <<= X; */
 		jit->seen |= SEEN_XREG;
 		/* sll %r5,0(%r12) */