Merge branch 'filter-next'

Daniel Borkmann says:

====================
BPF updates

These were still in my queue. Please see individual patches for
details.

I have rebased these on top of current net-next with Andrew's
gcc union fixup [1] applied to avoid dealing with an unnecessary
merge conflict.

[1] http://patchwork.ozlabs.org/patch/351577/
====================

Signed-off-by: David S. Miller <[e-mail]>

Documentation/networking/filter.txt

···
 descends all possible paths. It simulates execution of every insn and observes
 the state change of registers and stack.
 
+Testing
+-------
+
+Next to the BPF toolchain, the kernel also ships a test module that contains
+various test cases for classic and internal BPF that can be executed against
+the BPF interpreter and JIT compiler. It can be found in lib/test_bpf.c and
+enabled via Kconfig:
+
+  CONFIG_TEST_BPF=m
+
+After the module has been built and installed, the test suite can be executed
+via insmod or modprobe against 'test_bpf' module. Results of the test cases
+including timings in nsec can be found in the kernel log (dmesg).
+
 Misc
 ----
 

drivers/isdn/i4l/isdn_ppp.c

···
 #ifdef CONFIG_IPPP_FILTER
 	case PPPIOCSPASS:
 	{
-		struct sock_fprog fprog;
+		struct sock_fprog_kern fprog;
 		struct sock_filter *code;
 		int err, len = get_filter(argp, &code);
 
···
 	}
 	case PPPIOCSACTIVE:
 	{
-		struct sock_fprog fprog;
+		struct sock_fprog_kern fprog;
 		struct sock_filter *code;
 		int err, len = get_filter(argp, &code);
 

drivers/net/ppp/ppp_generic.c

···
 
 		err = get_filter(argp, &code);
 		if (err >= 0) {
-			struct sock_fprog fprog = {
+			struct sock_fprog_kern fprog = {
 				.len = err,
 				.filter = code,
 			};
···
 
 		err = get_filter(argp, &code);
 		if (err >= 0) {
-			struct sock_fprog fprog = {
+			struct sock_fprog_kern fprog = {
 				.len = err,
 				.filter = code,
 			};

drivers/net/team/team_mode_loadbalance.c

···
 struct lb_priv_ex {
 	struct team *team;
 	struct lb_port_mapping tx_hash_to_port_mapping[LB_TX_HASHTABLE_SIZE];
-	struct sock_fprog *orig_fprog;
+	struct sock_fprog_kern *orig_fprog;
 	struct {
 		unsigned int refresh_interval; /* in tenths of second */
 		struct delayed_work refresh_dw;
···
 	return 0;
 }
 
-static int __fprog_create(struct sock_fprog **pfprog, u32 data_len,
+static int __fprog_create(struct sock_fprog_kern **pfprog, u32 data_len,
 			  const void *data)
 {
-	struct sock_fprog *fprog;
+	struct sock_fprog_kern *fprog;
 	struct sock_filter *filter = (struct sock_filter *) data;
 
 	if (data_len % sizeof(struct sock_filter))
···
 	return 0;
 }
 
-static void __fprog_destroy(struct sock_fprog *fprog)
+static void __fprog_destroy(struct sock_fprog_kern *fprog)
 {
 	kfree(fprog->filter);
 	kfree(fprog);
···
 	struct lb_priv *lb_priv = get_lb_priv(team);
 	struct sk_filter *fp = NULL;
 	struct sk_filter *orig_fp;
-	struct sock_fprog *fprog = NULL;
+	struct sock_fprog_kern *fprog = NULL;
 	int err;
 
 	if (ctx->data.bin_val.len) {

include/linux/filter.h

···
 #define BPF_CALL	0x80	/* function call */
 #define BPF_EXIT	0x90	/* function return */
 
-/* Placeholder/dummy for 0 */
-#define BPF_0		0
-
 /* Register numbers */
 enum {
 	BPF_REG_0 = 0,
···
 		      struct sock_filter_int *new_prog, int *new_len);
 
 int sk_unattached_filter_create(struct sk_filter **pfp,
-				struct sock_fprog *fprog);
+				struct sock_fprog_kern *fprog);
 void sk_unattached_filter_destroy(struct sk_filter *fp);
 
 int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk);

lib/test_bpf.c

···
 #include <linux/netdevice.h>
 #include <linux/if_vlan.h>
 
+/* General test specific settings */
 #define MAX_SUBTESTS	3
+#define MAX_TESTRUNS	10000
 #define MAX_DATA	128
 #define MAX_INSNS	512
 #define MAX_K		0xffffFFFF
 
-/* define few constants used to init test 'skb' */
+/* Few constants used to init test 'skb' */
 #define SKB_TYPE	3
 #define SKB_MARK	0x1234aaaa
 #define SKB_HASH	0x1234aaab
···
 #define SKB_DEV_IFINDEX	577
 #define SKB_DEV_TYPE	588
 
-/* redefine REGs to make tests less verbose */
-#define R0 BPF_REG_0
-#define R1 BPF_REG_1
-#define R2 BPF_REG_2
-#define R3 BPF_REG_3
-#define R4 BPF_REG_4
-#define R5 BPF_REG_5
-#define R6 BPF_REG_6
-#define R7 BPF_REG_7
-#define R8 BPF_REG_8
-#define R9 BPF_REG_9
-#define R10 BPF_REG_10
+/* Redefine REGs to make tests less verbose */
+#define R0		BPF_REG_0
+#define R1		BPF_REG_1
+#define R2		BPF_REG_2
+#define R3		BPF_REG_3
+#define R4		BPF_REG_4
+#define R5		BPF_REG_5
+#define R6		BPF_REG_6
+#define R7		BPF_REG_7
+#define R8		BPF_REG_8
+#define R9		BPF_REG_9
+#define R10		BPF_REG_10
+
+/* Flags that can be passed to test cases */
+#define FLAG_NO_DATA		BIT(0)
+#define FLAG_EXPECTED_FAIL	BIT(1)
+
+enum {
+	CLASSIC  = BIT(6),	/* Old BPF instructions only. */
+	INTERNAL = BIT(7),	/* Extended instruction set.  */
+};
+
+#define TEST_TYPE_MASK		(CLASSIC | INTERNAL)
 
 struct bpf_test {
 	const char *descr;
···
 		struct sock_filter insns[MAX_INSNS];
 		struct sock_filter_int insns_int[MAX_INSNS];
 	} u;
-	enum {
-		NO_DATA,
-		EXPECTED_FAIL,
-		SKB,
-		SKB_INT
-	} data_type;
+	__u8 aux;
 	__u8 data[MAX_DATA];
 	struct {
 		int data_size;
···
 			BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 10, 20, 30, 40, 50 },
 		{ { 2, 10 }, { 3, 20 }, { 4, 30 } },
 	},
···
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0) /* A == len * 2 */
 		},
-		SKB,
+		CLASSIC,
 		{ 10, 20, 30, 40, 50 },
 		{ { 1, 2 }, { 3, 6 }, { 4, 8 } },
 	},
···
 			BPF_STMT(BPF_ALU | BPF_MUL | BPF_K, 3),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		0,
+		CLASSIC | FLAG_NO_DATA,
 		{ },
 		{ { 0, 0xfffffffd } }
 	},
···
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		0,
+		CLASSIC | FLAG_NO_DATA,
 		{ },
 		{ { 0, 0x40000001 } }
 	},
···
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		0,
+		CLASSIC | FLAG_NO_DATA,
 		{ },
 		{ { 0, 0x800000ff }, { 1, 0x800000ff } },
 	},
···
 			BPF_STMT(BPF_LD | BPF_H | BPF_IND, MAX_K),
 			BPF_STMT(BPF_RET | BPF_K, 1)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, 0 }, { 10, 0 }, { 60, 0 } },
 	},
···
 			BPF_STMT(BPF_LD | BPF_W | BPF_ABS, 1000),
 			BPF_STMT(BPF_RET | BPF_K, 1)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, 0 }, { 10, 0 }, { 60, 0 } },
 	},
···
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 1, 2, 3 },
 		{ { 1, 0 }, { 2, 3 } },
 	},
···
 			BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 1, 2, 3, 0xff },
 		{ { 1, 1 }, { 3, 3 }, { 4, 0xff } },
 	},
···
 			BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3 },
 		{ { 15, 0 }, { 16, 3 } },
 	},
···
 			BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3 },
 		{ { 14, 0 }, { 15, 1 }, { 17, 3 } },
 	},
···
 			BPF_STMT(BPF_RET | BPF_K, 1),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, 3 }, { 10, 3 } },
 	},
···
 				 SKF_AD_OFF + SKF_AD_MARK),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, SKB_MARK}, { 10, SKB_MARK} },
 	},
···
 				 SKF_AD_OFF + SKF_AD_RXHASH),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, SKB_HASH}, { 10, SKB_HASH} },
 	},
···
 				 SKF_AD_OFF + SKF_AD_QUEUE),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, SKB_QUEUE_MAP }, { 10, SKB_QUEUE_MAP } },
 	},
···
 			BPF_STMT(BPF_MISC | BPF_TXA, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 10, 20, 30 },
 		{ { 10, ETH_P_IP }, { 100, ETH_P_IP } },
 	},
···
 				 SKF_AD_OFF + SKF_AD_VLAN_TAG),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{
 			{ 1, SKB_VLAN_TCI & ~VLAN_TAG_PRESENT },
···
 				 SKF_AD_OFF + SKF_AD_VLAN_TAG_PRESENT),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{
 			{ 1, !!(SKB_VLAN_TCI & VLAN_TAG_PRESENT) },
···
 				 SKF_AD_OFF + SKF_AD_IFINDEX),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, SKB_DEV_IFINDEX }, { 10, SKB_DEV_IFINDEX } },
 	},
···
 				 SKF_AD_OFF + SKF_AD_HATYPE),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, SKB_DEV_TYPE }, { 10, SKB_DEV_TYPE } },
 	},
···
 			BPF_STMT(BPF_ALU | BPF_SUB | BPF_X, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, 0 }, { 10, 0 } },
 	},
···
 				 SKF_AD_OFF + SKF_AD_NLATTR),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 0xff, 4, 0, 2, 0, 4, 0, 3, 0 },
 		{ { 4, 0 }, { 20, 5 } },
 	},
···
 				 SKF_AD_OFF + SKF_AD_NLATTR_NEST),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ 0xff, 12, 0, 1, 0, 4, 0, 2, 0, 4, 0, 3, 0 },
 		{ { 4, 0 }, { 20, 9 } },
 	},
···
 				 SKF_AD_OFF + SKF_AD_PAY_OFFSET),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		/* 00:00:00:00:00:00 > 00:00:00:00:00:00, ethtype IPv4 (0x0800),
 		 * length 98: 127.0.0.1 > 127.0.0.1: ICMP echo request,
 		 * id 9737, seq 1, length 64
···
 				 SKF_AD_OFF + SKF_AD_ALU_XOR_X),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 4, 10 ^ 300 }, { 20, 10 ^ 300 } },
 	},
···
 			BPF_STMT(BPF_ALU | BPF_XOR | BPF_X, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
+		CLASSIC,
 		{ },
 		{ { 1, 0x80000001 }, { 2, 0x80000002 }, { 60, 0x80000000 ^ 60 } }
 	},
···
 			BPF_STMT(BPF_RET | BPF_K, 1),
 			BPF_STMT(BPF_RET | BPF_K, MAX_K)
 		},
-		SKB,
+		CLASSIC,
 		{ 3, 3, 3, 3, 3 },
 		{ { 1, 0 }, { 3, 1 }, { 4, MAX_K } },
 	},
···
 			BPF_STMT(BPF_RET | BPF_K, 1),
 			BPF_STMT(BPF_RET | BPF_K, MAX_K)
 		},
-		SKB,
+		CLASSIC,
 		{ 4, 4, 4, 3, 3 },
 		{ { 2, 0 }, { 3, 1 }, { 4, MAX_K } },
 	},
···
 			BPF_STMT(BPF_RET | BPF_K, 40),
 			BPF_STMT(BPF_RET | BPF_K, MAX_K)
 		},
-		SKB,
+		CLASSIC,
 		{ 1, 2, 3, 4, 5 },
 		{ { 1, 20 }, { 3, 40 }, { 5, MAX_K } },
 	},
···
 			BPF_STMT(BPF_RET | BPF_K, 30),
 			BPF_STMT(BPF_RET | BPF_K, MAX_K)
 		},
-		SKB,
+		CLASSIC,
 		{ 0, 0xAA, 0x55, 1 },
 		{ { 4, 10 }, { 5, 20 }, { 6, MAX_K } },
 	},
···
 			{ 0x06,  0,  0, 0x0000ffff },
 			{ 0x06,  0,  0, 0x00000000 },
 		},
-		SKB,
+		CLASSIC,
 		/* 3c:07:54:43:e5:76 > 10:bf:48:d6:43:d6, ethertype IPv4(0x0800)
 		 * length 114: 10.1.1.149.49700 > 10.1.2.10.22: Flags [P.],
 		 * seq 1305692979:1305693027, ack 3650467037, win 65535,
···
 			{ 0x06,  0,  0, 0x0000ffff },
 			{ 0x06,  0,  0, 0x00000000 },
 		},
-		SKB,
+		CLASSIC,
 		{ 0x10, 0xbf, 0x48, 0xd6, 0x43, 0xd6,
 		  0x3c, 0x07, 0x54, 0x43, 0xe5, 0x76,
 		  0x08, 0x00,
···
 			BPF_STMT(BPF_MISC | BPF_TXA, 0),
 			BPF_STMT(BPF_RET | BPF_A, 0)
 		},
-		SKB,
-		{},
+		CLASSIC,
+		{ },
 		{ {1, 0}, {2, 0} },
 	},
 	{
···
 			BPF_ALU64_REG(BPF_MOV, R0, R1),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 0xfffffffd } }
 	},
···
 			BPF_ALU64_IMM(BPF_MOV, R0, 1),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 1 } }
 	},
···
 			BPF_ALU32_IMM(BPF_MOV, R0, 1),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 1 } }
 	},
···
 			BPF_ALU32_IMM(BPF_MOV, R0, 1),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 1 } }
 	},
···
 			BPF_ALU64_REG(BPF_MOV, R0, R9),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 2957380 } }
 	},
···
 			BPF_ALU32_REG(BPF_MOV, R0, R9),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 2957380 } }
 	},
···
 			BPF_ALU64_REG(BPF_SUB, R0, R9),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 11 } }
 	},
···
 			BPF_ALU64_IMM(BPF_MOV, R0, 1),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 1 } }
 	},
···
 			BPF_ALU64_REG(BPF_MOV, R0, R2),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, 0x35d97ef2 } }
 	},
···
 			BPF_ALU64_IMM(BPF_MOV, R0, -1),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ },
 		{ { 0, -1 } }
 	},
···
 			BPF_LD_IND(BPF_B, R8, -70),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ 10, 20, 30, 40, 50 },
 		{ { 4, 0 }, { 5, 10 } }
 	},
···
 			BPF_ALU32_REG(BPF_DIV, R0, R7),
 			BPF_EXIT_INSN(),
 		},
-		SKB_INT,
+		INTERNAL,
 		{ 10, 20, 30, 40, 50 },
 		{ { 3, 0 }, { 4, 0 } }
 	},
···
 		.u.insns = {
 			BPF_STMT(BPF_LD | BPF_IMM, 1),
 		},
-		EXPECTED_FAIL,
+		CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
 		{ },
 		{ }
 	},
···
 			BPF_STMT(BPF_ALU | BPF_DIV | BPF_K, 0),
 			BPF_STMT(BPF_RET | BPF_K, 0)
 		},
-		EXPECTED_FAIL,
+		CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
 		{ },
 		{ }
 	},
···
 			BPF_STMT(BPF_LDX | BPF_W | BPF_ABS, 0),
 			BPF_STMT(BPF_RET | BPF_K, 0)
 		},
-		EXPECTED_FAIL,
+		CLASSIC | FLAG_EXPECTED_FAIL,
 		{ },
 		{ }
 	},
···
 			BPF_STMT(BPF_STX, 16),
 			BPF_STMT(BPF_RET | BPF_K, 0)
 		},
-		EXPECTED_FAIL,
+		CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
 		{ },
 		{ }
 	},
+	{
+		"JUMPS + HOLES",
+		.u.insns = {
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_JUMP(BPF_JMP | BPF_JGE, 0, 13, 15),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90c2894d, 3, 4),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90c2894d, 1, 2),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_JUMP(BPF_JMP | BPF_JGE, 0, 14, 15),
+			BPF_JUMP(BPF_JMP | BPF_JGE, 0, 13, 14),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_JUMP(BPF_JMP | BPF_JEQ, 0x2ac28349, 2, 3),
+			BPF_JUMP(BPF_JMP | BPF_JEQ, 0x2ac28349, 1, 2),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_JUMP(BPF_JMP | BPF_JGE, 0, 14, 15),
+			BPF_JUMP(BPF_JMP | BPF_JGE, 0, 13, 14),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90d2ff41, 2, 3),
+			BPF_JUMP(BPF_JMP | BPF_JEQ, 0x90d2ff41, 1, 2),
+			BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 0),
+			BPF_STMT(BPF_RET | BPF_A, 0),
+			BPF_STMT(BPF_RET | BPF_A, 0),
+		},
+		CLASSIC,
+		{ 0x00, 0x1b, 0x21, 0x3c, 0x9d, 0xf8, 0x90, 0xe2,
+		  0xba, 0x0a, 0x56, 0xb4, 0x08, 0x00, 0x45, 0x00,
+		  0x00, 0x28, 0x00, 0x00, 0x20, 0x00, 0x40, 0x11,
+		  0x00, 0x00, 0xc0, 0xa8, 0x33, 0x01, 0xc0, 0xa8,
+		  0x33, 0x02, 0xbb, 0xb6, 0xa9, 0xfa, 0x00, 0x14,
+		  0x00, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
+		  0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
+		  0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
+		  0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
+		  0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
+		  0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc },
+		{ { 88, 0x001b } }
+	},
+	{
+		"check: RET X",
+		.u.insns = {
+			BPF_STMT(BPF_RET | BPF_X, 0),
+		},
+		CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
+		{ },
+		{ },
+	},
+	{
+		"check: LDX + RET X",
+		.u.insns = {
+			BPF_STMT(BPF_LDX | BPF_IMM, 42),
+			BPF_STMT(BPF_RET | BPF_X, 0),
+		},
+		CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
+		{ },
+		{ },
+	},
 };
 
-static int get_length(struct sock_filter *fp)
-{
-	int len = 0;
+static struct net_device dev;
 
-	while (fp->code != 0 || fp->k != 0) {
-		fp++;
-		len++;
-	}
-
-	return len;
-}
-
-struct net_device dev;
-struct sk_buff *populate_skb(char *buf, int size)
+static struct sk_buff *populate_skb(char *buf, int size)
 {
 	struct sk_buff *skb;
 
···
 		return NULL;
 
 	memcpy(__skb_put(skb, size), buf, size);
+
+	/* Initialize a fake skb with test pattern. */
 	skb_reset_mac_header(skb);
 	skb->protocol = htons(ETH_P_IP);
 	skb->pkt_type = SKB_TYPE;
···
 	return skb;
 }
 
-static int run_one(struct sk_filter *fp, struct bpf_test *t)
+static void *generate_test_data(struct bpf_test *test, int sub)
 {
-	u64 start, finish, res, cnt = 100000;
-	int err_cnt = 0, err, i, j;
-	u32 ret = 0;
-	void *data;
+	if (test->aux & FLAG_NO_DATA)
+		return NULL;
 
-	for (i = 0; i < MAX_SUBTESTS; i++) {
-		if (t->test[i].data_size == 0 &&
-		    t->test[i].result == 0)
-			break;
-		if (t->data_type == SKB ||
-		    t->data_type == SKB_INT) {
-			data = populate_skb(t->data, t->test[i].data_size);
-			if (!data)
-				return -ENOMEM;
-		} else {
-			data = NULL;
+	/* Test case expects an skb, so populate one. Various
+	 * subtests generate skbs of different sizes based on
+	 * the same data.
+	 */
+	return populate_skb(test->data, test->test[sub].data_size);
+}
+
+static void release_test_data(const struct bpf_test *test, void *data)
+{
+	if (test->aux & FLAG_NO_DATA)
+		return;
+
+	kfree_skb(data);
+}
+
+static int probe_filter_length(struct sock_filter *fp)
+{
+	int len = 0;
+
+	while (fp->code != 0 || fp->k != 0) {
+		fp++;
+		len++;
+	}
+
+	return len;
+}
+
+static struct sk_filter *generate_filter(int which, int *err)
+{
+	struct sk_filter *fp;
+	struct sock_fprog_kern fprog;
+	unsigned int flen = probe_filter_length(tests[which].u.insns);
+	__u8 test_type = tests[which].aux & TEST_TYPE_MASK;
+
+	switch (test_type) {
+	case CLASSIC:
+		fprog.filter = tests[which].u.insns;
+		fprog.len = flen;
+
+		*err = sk_unattached_filter_create(&fp, &fprog);
+		if (tests[which].aux & FLAG_EXPECTED_FAIL) {
+			if (*err == -EINVAL) {
+				pr_cont("PASS\n");
+				/* Verifier rejected filter as expected. */
+				*err = 0;
+				return NULL;
+			} else {
+				pr_cont("UNEXPECTED_PASS\n");
+				/* Verifier didn't reject the test that's
+				 * bad enough, just return!
+				 */
+				*err = -EINVAL;
+				return NULL;
+			}
+		}
+		/* We don't expect to fail. */
+		if (*err) {
+			pr_cont("FAIL to attach err=%d len=%d\n",
+				*err, fprog.len);
+			return NULL;
+		}
+		break;
+
+	case INTERNAL:
+		fp = kzalloc(sk_filter_size(flen), GFP_KERNEL);
+		if (fp == NULL) {
+			pr_cont("UNEXPECTED_FAIL no memory left\n");
+			*err = -ENOMEM;
+			return NULL;
 		}
 
-		start = ktime_to_us(ktime_get());
-		for (j = 0; j < cnt; j++)
-			ret = SK_RUN_FILTER(fp, data);
-		finish = ktime_to_us(ktime_get());
+		fp->len = flen;
+		memcpy(fp->insnsi, tests[which].u.insns_int,
+		       fp->len * sizeof(struct sock_filter_int));
 
-		res = (finish - start) * 1000;
-		do_div(res, cnt);
+		sk_filter_select_runtime(fp);
+		break;
+	}
 
-		err = ret != t->test[i].result;
-		if (!err)
-			pr_cont("%lld ", res);
+	*err = 0;
+	return fp;
+}
 
-		if (t->data_type == SKB || t->data_type == SKB_INT)
-			kfree_skb(data);
+static void release_filter(struct sk_filter *fp, int which)
+{
+	__u8 test_type = tests[which].aux & TEST_TYPE_MASK;
 
-		if (err) {
-			pr_cont("ret %d != %d ", ret, t->test[i].result);
+	switch (test_type) {
+	case CLASSIC:
+		sk_unattached_filter_destroy(fp);
+		break;
+	case INTERNAL:
+		sk_filter_free(fp);
+		break;
+	}
+}
+
+static int __run_one(const struct sk_filter *fp, const void *data,
+		     int runs, u64 *duration)
+{
+	u64 start, finish;
+	int ret, i;
+
+	start = ktime_to_us(ktime_get());
+
+	for (i = 0; i < runs; i++)
+		ret = SK_RUN_FILTER(fp, data);
+
+	finish = ktime_to_us(ktime_get());
+
+	*duration = (finish - start) * 1000ULL;
+	do_div(*duration, runs);
+
+	return ret;
+}
+
+static int run_one(const struct sk_filter *fp, struct bpf_test *test)
+{
+	int err_cnt = 0, i, runs = MAX_TESTRUNS;
+
+	for (i = 0; i < MAX_SUBTESTS; i++) {
+		void *data;
+		u64 duration;
+		u32 ret;
+
+		if (test->test[i].data_size == 0 &&
+		    test->test[i].result == 0)
+			break;
+
+		data = generate_test_data(test, i);
+		ret = __run_one(fp, data, runs, &duration);
+		release_test_data(test, data);
+
+		if (ret == test->test[i].result) {
+			pr_cont("%lld ", duration);
+		} else {
+			pr_cont("ret %d != %d ", ret,
+				test->test[i].result);
 			err_cnt++;
 		}
 	}
···
 
 static __init int test_bpf(void)
 {
-	struct sk_filter *fp, *fp_ext = NULL;
-	struct sock_fprog fprog;
-	int err, i, err_cnt = 0;
+	int i, err_cnt = 0, pass_cnt = 0;
 
 	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		struct sk_filter *fp;
+		int err;
+
 		pr_info("#%d %s ", i, tests[i].descr);
 
-		fprog.filter = tests[i].u.insns;
-		fprog.len = get_length(fprog.filter);
+		fp = generate_filter(i, &err);
+		if (fp == NULL) {
+			if (err == 0) {
+				pass_cnt++;
+				continue;
+			}
 
-		if (tests[i].data_type == SKB_INT) {
-			fp_ext = kzalloc(4096, GFP_KERNEL);
-			if (!fp_ext)
-				return -ENOMEM;
-			fp = fp_ext;
-			memcpy(fp_ext->insns, tests[i].u.insns_int,
-			       fprog.len * 8);
-			fp->len = fprog.len;
-			sk_filter_select_runtime(fp);
-		} else {
-			err = sk_unattached_filter_create(&fp, &fprog);
-			if (tests[i].data_type == EXPECTED_FAIL) {
-				if (err == -EINVAL) {
-					pr_cont("PASS\n");
-					continue;
-				} else {
-					pr_cont("UNEXPECTED_PASS\n");
-					/* verifier didn't reject the test
-					 * that's bad enough, just return
-					 */
-					return -EINVAL;
-				}
-			}
-			if (err) {
-				pr_cont("FAIL to attach err=%d len=%d\n",
-					err, fprog.len);
-				return err;
-			}
+			return err;
 		}
-
 		err = run_one(fp, &tests[i]);
-
-		if (tests[i].data_type != SKB_INT)
-			sk_unattached_filter_destroy(fp);
-		else
-			sk_filter_free(fp);
+		release_filter(fp, i);
 
 		if (err) {
-			pr_cont("FAIL %d\n", err);
+			pr_cont("FAIL (%d times)\n", err);
 			err_cnt++;
 		} else {
 			pr_cont("PASS\n");
+			pass_cnt++;
 		}
 	}
 
-	if (err_cnt)
-		return -EINVAL;
-	else
-		return 0;
+	pr_info("Summary: %d PASSED, %d FAILED\n", pass_cnt, err_cnt);
+	return err_cnt ? -EINVAL : 0;
 }
 
 static int __init test_bpf_init(void)
···
 
 module_init(test_bpf_init);
 module_exit(test_bpf_exit);
+
 MODULE_LICENSE("GPL");

net/core/filter.c

···
 	static const void *jumptable[256] = {
 		[0 ... 255] = &&default_label,
 		/* Now overwrite non-defaults ... */
-#define DL(A, B, C)	[BPF_##A|BPF_##B|BPF_##C] = &&A##_##B##_##C
-		DL(ALU, ADD, X),
-		DL(ALU, ADD, K),
-		DL(ALU, SUB, X),
-		DL(ALU, SUB, K),
-		DL(ALU, AND, X),
-		DL(ALU, AND, K),
-		DL(ALU, OR, X),
-		DL(ALU, OR, K),
-		DL(ALU, LSH, X),
-		DL(ALU, LSH, K),
-		DL(ALU, RSH, X),
-		DL(ALU, RSH, K),
-		DL(ALU, XOR, X),
-		DL(ALU, XOR, K),
-		DL(ALU, MUL, X),
-		DL(ALU, MUL, K),
-		DL(ALU, MOV, X),
-		DL(ALU, MOV, K),
-		DL(ALU, DIV, X),
-		DL(ALU, DIV, K),
-		DL(ALU, MOD, X),
-		DL(ALU, MOD, K),
-		DL(ALU, NEG, 0),
-		DL(ALU, END, TO_BE),
-		DL(ALU, END, TO_LE),
-		DL(ALU64, ADD, X),
-		DL(ALU64, ADD, K),
-		DL(ALU64, SUB, X),
-		DL(ALU64, SUB, K),
-		DL(ALU64, AND, X),
-		DL(ALU64, AND, K),
-		DL(ALU64, OR, X),
-		DL(ALU64, OR, K),
-		DL(ALU64, LSH, X),
-		DL(ALU64, LSH, K),
-		DL(ALU64, RSH, X),
-		DL(ALU64, RSH, K),
-		DL(ALU64, XOR, X),
-		DL(ALU64, XOR, K),
-		DL(ALU64, MUL, X),
-		DL(ALU64, MUL, K),
-		DL(ALU64, MOV, X),
-		DL(ALU64, MOV, K),
-		DL(ALU64, ARSH, X),
-		DL(ALU64, ARSH, K),
-		DL(ALU64, DIV, X),
-		DL(ALU64, DIV, K),
-		DL(ALU64, MOD, X),
-		DL(ALU64, MOD, K),
-		DL(ALU64, NEG, 0),
-		DL(JMP, CALL, 0),
-		DL(JMP, JA, 0),
-		DL(JMP, JEQ, X),
-		DL(JMP, JEQ, K),
-		DL(JMP, JNE, X),
-		DL(JMP, JNE, K),
-		DL(JMP, JGT, X),
-		DL(JMP, JGT, K),
-		DL(JMP, JGE, X),
-		DL(JMP, JGE, K),
-		DL(JMP, JSGT, X),
-		DL(JMP, JSGT, K),
-		DL(JMP, JSGE, X),
-		DL(JMP, JSGE, K),
-		DL(JMP, JSET, X),
-		DL(JMP, JSET, K),
-		DL(JMP, EXIT, 0),
-		DL(STX, MEM, B),
-		DL(STX, MEM, H),
-		DL(STX, MEM, W),
-		DL(STX, MEM, DW),
-		DL(STX, XADD, W),
-		DL(STX, XADD, DW),
-		DL(ST, MEM, B),
-		DL(ST, MEM, H),
-		DL(ST, MEM, W),
-		DL(ST, MEM, DW),
-		DL(LDX, MEM, B),
-		DL(LDX, MEM, H),
-		DL(LDX, MEM, W),
-		DL(LDX, MEM, DW),
-		DL(LD, ABS, W),
-		DL(LD, ABS, H),
-		DL(LD, ABS, B),
-		DL(LD, IND, W),
-		DL(LD, IND, H),
-		DL(LD, IND, B),
-#undef DL
+		/* 32 bit ALU operations */
+		[BPF_ALU | BPF_ADD | BPF_X] = &&ALU_ADD_X,
+		[BPF_ALU | BPF_ADD | BPF_K] = &&ALU_ADD_K,
+		[BPF_ALU | BPF_SUB | BPF_X] = &&ALU_SUB_X,
+		[BPF_ALU | BPF_SUB | BPF_K] = &&ALU_SUB_K,
+		[BPF_ALU | BPF_AND | BPF_X] = &&ALU_AND_X,
+		[BPF_ALU | BPF_AND | BPF_K] = &&ALU_AND_K,
+		[BPF_ALU | BPF_OR | BPF_X]  = &&ALU_OR_X,
+		[BPF_ALU | BPF_OR | BPF_K]  = &&ALU_OR_K,
+		[BPF_ALU | BPF_LSH | BPF_X] = &&ALU_LSH_X,
+		[BPF_ALU | BPF_LSH | BPF_K] = &&ALU_LSH_K,
+		[BPF_ALU | BPF_RSH | BPF_X] = &&ALU_RSH_X,
+		[BPF_ALU | BPF_RSH | BPF_K] = &&ALU_RSH_K,
+		[BPF_ALU | BPF_XOR | BPF_X] = &&ALU_XOR_X,
+		[BPF_ALU | BPF_XOR | BPF_K] = &&ALU_XOR_K,
+		[BPF_ALU | BPF_MUL | BPF_X] = &&ALU_MUL_X,
+		[BPF_ALU | BPF_MUL | BPF_K] = &&ALU_MUL_K,
+		[BPF_ALU | BPF_MOV | BPF_X] = &&ALU_MOV_X,
+		[BPF_ALU | BPF_MOV | BPF_K] = &&ALU_MOV_K,
+		[BPF_ALU | BPF_DIV | BPF_X] = &&ALU_DIV_X,
+		[BPF_ALU | BPF_DIV | BPF_K] = &&ALU_DIV_K,
+		[BPF_ALU | BPF_MOD | BPF_X] = &&ALU_MOD_X,
+		[BPF_ALU | BPF_MOD | BPF_K] = &&ALU_MOD_K,
+		[BPF_ALU | BPF_NEG] = &&ALU_NEG,
+		[BPF_ALU | BPF_END | BPF_TO_BE] = &&ALU_END_TO_BE,
+		[BPF_ALU | BPF_END | BPF_TO_LE] = &&ALU_END_TO_LE,
+		/* 64 bit ALU operations */
+		[BPF_ALU64 | BPF_ADD | BPF_X] = &&ALU64_ADD_X,
+		[BPF_ALU64 | BPF_ADD | BPF_K] = &&ALU64_ADD_K,
+		[BPF_ALU64 | BPF_SUB | BPF_X] = &&ALU64_SUB_X,
+		[BPF_ALU64 | BPF_SUB | BPF_K] = &&ALU64_SUB_K,
+		[BPF_ALU64 | BPF_AND | BPF_X] = &&ALU64_AND_X,
+		[BPF_ALU64 | BPF_AND | BPF_K] = &&ALU64_AND_K,
+		[BPF_ALU64 | BPF_OR | BPF_X] = &&ALU64_OR_X,
+		[BPF_ALU64 | BPF_OR | BPF_K] = &&ALU64_OR_K,
+		[BPF_ALU64 | BPF_LSH | BPF_X] = &&ALU64_LSH_X,
+		[BPF_ALU64 | BPF_LSH | BPF_K] = &&ALU64_LSH_K,
+		[BPF_ALU64 | BPF_RSH | BPF_X] = &&ALU64_RSH_X,
+		[BPF_ALU64 | BPF_RSH | BPF_K] = &&ALU64_RSH_K,
+		[BPF_ALU64 | BPF_XOR | BPF_X] = &&ALU64_XOR_X,
+		[BPF_ALU64 | BPF_XOR | BPF_K] = &&ALU64_XOR_K,
+		[BPF_ALU64 | BPF_MUL | BPF_X] = &&ALU64_MUL_X,
+		[BPF_ALU64 | BPF_MUL | BPF_K] = &&ALU64_MUL_K,
+		[BPF_ALU64 | BPF_MOV | BPF_X] = &&ALU64_MOV_X,
+		[BPF_ALU64 | BPF_MOV | BPF_K] = &&ALU64_MOV_K,
+		[BPF_ALU64 | BPF_ARSH | BPF_X] = &&ALU64_ARSH_X,
+		[BPF_ALU64 | BPF_ARSH | BPF_K] = &&ALU64_ARSH_K,
+		[BPF_ALU64 | BPF_DIV | BPF_X] = &&ALU64_DIV_X,
+		[BPF_ALU64 | BPF_DIV | BPF_K] = &&ALU64_DIV_K,
+		[BPF_ALU64 | BPF_MOD | BPF_X] = &&ALU64_MOD_X,
+		[BPF_ALU64 | BPF_MOD | BPF_K] = &&ALU64_MOD_K,
+		[BPF_ALU64 | BPF_NEG] = &&ALU64_NEG,
+		/* Call instruction */
+		[BPF_JMP | BPF_CALL] = &&JMP_CALL,
+		/* Jumps */
+		[BPF_JMP | BPF_JA] = &&JMP_JA,
+		[BPF_JMP | BPF_JEQ | BPF_X] = &&JMP_JEQ_X,
+		[BPF_JMP | BPF_JEQ | BPF_K] = &&JMP_JEQ_K,
+		[BPF_JMP | BPF_JNE | BPF_X] = &&JMP_JNE_X,
+		[BPF_JMP | BPF_JNE | BPF_K] = &&JMP_JNE_K,
+		[BPF_JMP | BPF_JGT | BPF_X] = &&JMP_JGT_X,
+		[BPF_JMP | BPF_JGT | BPF_K] = &&JMP_JGT_K,
+		[BPF_JMP | BPF_JGE | BPF_X] = &&JMP_JGE_X,
+		[BPF_JMP | BPF_JGE | BPF_K] = &&JMP_JGE_K,
+		[BPF_JMP | BPF_JSGT | BPF_X] = &&JMP_JSGT_X,
+		[BPF_JMP | BPF_JSGT | BPF_K] = &&JMP_JSGT_K,
+		[BPF_JMP | BPF_JSGE | BPF_X] = &&JMP_JSGE_X,
+		[BPF_JMP | BPF_JSGE | BPF_K] = &&JMP_JSGE_K,
+		[BPF_JMP | BPF_JSET | BPF_X] = &&JMP_JSET_X,
+		[BPF_JMP | BPF_JSET | BPF_K] = &&JMP_JSET_K,
+		/* Program return */
+		[BPF_JMP | BPF_EXIT] = &&JMP_EXIT,
+		/* Store instructions */
+		[BPF_STX | BPF_MEM | BPF_B] = &&STX_MEM_B,
+		[BPF_STX | BPF_MEM | BPF_H] = &&STX_MEM_H,
+		[BPF_STX | BPF_MEM | BPF_W] = &&STX_MEM_W,
+		[BPF_STX | BPF_MEM | BPF_DW] = &&STX_MEM_DW,
+		[BPF_STX | BPF_XADD | BPF_W] = &&STX_XADD_W,
+		[BPF_STX | BPF_XADD | BPF_DW] = &&STX_XADD_DW,
+		[BPF_ST | BPF_MEM | BPF_B] = &&ST_MEM_B,
+		[BPF_ST | BPF_MEM | BPF_H] = &&ST_MEM_H,
+		[BPF_ST | BPF_MEM | BPF_W] = &&ST_MEM_W,
+		[BPF_ST | BPF_MEM | BPF_DW] = &&ST_MEM_DW,
+		/* Load instructions */
+		[BPF_LDX | BPF_MEM | BPF_B] = &&LDX_MEM_B,
+		[BPF_LDX | BPF_MEM | BPF_H] = &&LDX_MEM_H,
+		[BPF_LDX | BPF_MEM | BPF_W] = &&LDX_MEM_W,
+		[BPF_LDX | BPF_MEM | BPF_DW] = &&LDX_MEM_DW,
+		[BPF_LD | BPF_ABS | BPF_W] = &&LD_ABS_W,
+		[BPF_LD | BPF_ABS | BPF_H] = &&LD_ABS_H,
+		[BPF_LD | BPF_ABS | BPF_B] = &&LD_ABS_B,
+		[BPF_LD | BPF_IND | BPF_W] = &&LD_IND_W,
+		[BPF_LD | BPF_IND | BPF_H] = &&LD_IND_H,
+		[BPF_LD | BPF_IND | BPF_B] = &&LD_IND_B,
 	};
 	void *ptr;
 	int off;
···
 	ALU(XOR,  ^)
 	ALU(MUL,  *)
 #undef ALU
-	ALU_NEG_0:
+	ALU_NEG:
 		A = (u32) -A;
 		CONT;
-	ALU64_NEG_0:
+	ALU64_NEG:
 		A = -A;
 		CONT;
 	ALU_MOV_X:
···
 		CONT;
 
 	/* CALL */
-	JMP_CALL_0:
+	JMP_CALL:
 		/* Function call scratches BPF_R1-BPF_R5 registers,
 		 * preserves BPF_R6-BPF_R9, and stores return value
 		 * into BPF_R0.
···
 		CONT;
 
 	/* JMP */
-	JMP_JA_0:
+	JMP_JA:
 		insn += insn->off;
 		CONT;
 	JMP_JEQ_X:
···
 			CONT_JMP;
 		}
 		CONT;
-	JMP_EXIT_0:
+	JMP_EXIT:
 		return BPF_R0;
 
 	/* STX and ST and LDX*/
···
  * a negative errno code is returned. On success the return is zero.
  */
 int sk_unattached_filter_create(struct sk_filter **pfp,
-				struct sock_fprog *fprog)
+				struct sock_fprog_kern *fprog)
 {
 	unsigned int fsize = sk_filter_proglen(fprog);
 	struct sk_filter *fp;

net/core/ptp_classifier.c

···
 		{ 0x16,  0,  0, 0x00000000 },
 		{ 0x06,  0,  0, 0x00000000 },
 	};
-	struct sock_fprog ptp_prog = {
+	struct sock_fprog_kern ptp_prog = {
 		.len = ARRAY_SIZE(ptp_filter), .filter = ptp_filter,
 	};
 

net/netfilter/xt_bpf.c

···
 static int bpf_mt_check(const struct xt_mtchk_param *par)
 {
 	struct xt_bpf_info *info = par->matchinfo;
-	struct sock_fprog program;
+	struct sock_fprog_kern program;
 
 	program.len = info->bpf_program_num_elem;
-	program.filter = (struct sock_filter __user *) info->bpf_program;
+	program.filter = info->bpf_program;
+
 	if (sk_unattached_filter_create(&info->filter, &program)) {
 		pr_info("bpf: check failed: parse error\n");
 		return -EINVAL;

net/sched/cls_bpf.c

···
 {
 	struct sock_filter *bpf_ops, *bpf_old;
 	struct tcf_exts exts;
-	struct sock_fprog tmp;
+	struct sock_fprog_kern tmp;
 	struct sk_filter *fp, *fp_old;
 	u16 bpf_size, bpf_len;
 	u32 classid;
···
 	memcpy(bpf_ops, nla_data(tb[TCA_BPF_OPS]), bpf_size);
 
 	tmp.len = bpf_len;
-	tmp.filter = (struct sock_filter __user *) bpf_ops;
+	tmp.filter = bpf_ops;
 
 	ret = sk_unattached_filter_create(&fp, &tmp);
 	if (ret)