Cc: Matt Evans <redacted>
Signed-off-by: Denis Kirjanov <redacted>
---
 arch/powerpc/include/asm/ppc-opcode.h | 1 +
 arch/powerpc/net/bpf_jit.h            | 7 +++++++
 arch/powerpc/net/bpf_jit_comp.c       | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/arch/powerpc/include/asm/ppc-opcode.h

b/arch/powerpc/include/asm/ppc-opcode.h
index 6f85362..1a52877 100644

--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h

@@ -204,6 +204,7 @@
 #define PPC_INST_ERATSX_DOT		0x7c000127

 /* Misc instructions for BPF compiler */
+#define PPC_INST_LBZ			0x88000000
 #define PPC_INST_LD			0xe8000000
 #define PPC_INST_LHZ			0xa0000000
 #define PPC_INST_LHBRX			0x7c00062c

diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 9aee27c..c406aa9 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h

@@ -87,6 +87,9 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
 #define PPC_STD(r, base, i)	EMIT(PPC_INST_STD | ___PPC_RS(r) |	      \
 				     ___PPC_RA(base) | ((i) & 0xfffc))

+
+#define PPC_LBZ(r, base, i)	EMIT(PPC_INST_LBZ | ___PPC_RT(r) |	      \
+				     ___PPC_RA(base) | IMM_L(i))
 #define PPC_LD(r, base, i)	EMIT(PPC_INST_LD | ___PPC_RT(r) |	      \
 				     ___PPC_RA(base) | IMM_L(i))
 #define PPC_LWZ(r, base, i)	EMIT(PPC_INST_LWZ | ___PPC_RT(r) |	      \

@@ -96,6 +99,10 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
 #define PPC_LHBRX(r, base, b)	EMIT(PPC_INST_LHBRX | ___PPC_RT(r) |	      \
 				     ___PPC_RA(base) | ___PPC_RB(b))
 /* Convenience helpers for the above with 'far' offsets: */
+#define PPC_LBZ_OFFS(r, base, i) do { if ((i) < 32768) PPC_LBZ(r, base, i);
  \
+		else {	PPC_ADDIS(r, base, IMM_HA(i));			      \
+			PPC_LBZ(r, r, IMM_L(i)); } } while(0)
+
 #define PPC_LD_OFFS(r, base, i) do { if ((i) < 32768) PPC_LD(r, base, i);
  \
 		else {	PPC_ADDIS(r, base, IMM_HA(i));			      \
 			PPC_LD(r, r, IMM_L(i)); } } while(0)

diff --git a/arch/powerpc/net/bpf_jit_comp.c

b/arch/powerpc/net/bpf_jit_comp.c
index cbae2df..d110e28 100644

--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c

@@ -407,6 +407,11 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32

*image,
 			PPC_LHZ_OFFS(r_A, r_skb, offsetof(struct sk_buff,
 							  queue_mapping));
 			break;
+		case BPF_ANC | SKF_AD_PKTTYPE:
+			PPC_LBZ_OFFS(r_A, r_skb, PKT_TYPE_OFFSET());
+			PPC_ANDI(r_A, r_A, PKT_TYPE_MAX);
+			PPC_SRWI(r_A, r_A, 5);
+			break;
 		case BPF_ANC | SKF_AD_CPU:
 #ifdef CONFIG_SMP
 			/*
--
2.1.0