6 files changed, 52 insertions, 44 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 35dfb831848..0dd54a69dac 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2131,7 +2131,7 @@ static struct netdev_queue *dev_pick_tx(struct net_device *dev,
         } else {
                 struct sock *sk = skb->sk;
                 queue_index = sk_tx_queue_get(sk);
-                if (queue_index < 0) {
+                if (queue_index < 0 || queue_index >= dev->real_num_tx_queues) {
 
                         queue_index = 0;
                         if (dev->real_num_tx_queues > 1)
diff --git a/net/core/dst.c b/net/core/dst.c
index 8abe628b79f..b99c7c7ffce 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -370,6 +370,7 @@ static int dst_dev_event(struct notifier_block *this, unsigned long event,
 
 static struct notifier_block dst_dev_notifier = {
         .notifier_call  = dst_dev_event,
+        .priority = -10, /* must be called after other network notifiers */
 };
 
 void __init dst_init(void)
diff --git a/net/core/filter.c b/net/core/filter.c
index 7beaec36b54..23e9b2a6b4c 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -112,39 +112,41 @@ EXPORT_SYMBOL(sk_filter);
  */
 unsigned int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int flen)
 {
-        struct sock_filter *fentry;     /* We walk down these */
         void *ptr;
         u32 A = 0;                      /* Accumulator */
         u32 X = 0;                      /* Index Register */
         u32 mem[BPF_MEMWORDS];          /* Scratch Memory Store */
+        unsigned long memvalid = 0;
         u32 tmp;
         int k;
         int pc;
 
+        BUILD_BUG_ON(BPF_MEMWORDS > BITS_PER_LONG);
         /*
          * Process array of filter instructions.
          */
         for (pc = 0; pc < flen; pc++) {
-                fentry = &filter[pc];
+                const struct sock_filter *fentry = &filter[pc];
+                u32 f_k = fentry->k;
 
                 switch (fentry->code) {
                 case BPF_S_ALU_ADD_X:
                         A += X;
                         continue;
                 case BPF_S_ALU_ADD_K:
-                        A += fentry->k;
+                        A += f_k;
                         continue;
                 case BPF_S_ALU_SUB_X:
                         A -= X;
                         continue;
                 case BPF_S_ALU_SUB_K:
-                        A -= fentry->k;
+                        A -= f_k;
                         continue;
                 case BPF_S_ALU_MUL_X:
                         A *= X;
                         continue;
                 case BPF_S_ALU_MUL_K:
-                        A *= fentry->k;
+                        A *= f_k;
                         continue;
                 case BPF_S_ALU_DIV_X:
                         if (X == 0)
@@ -152,49 +154,49 @@ unsigned int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int
                         A /= X;
                         continue;
                 case BPF_S_ALU_DIV_K:
-                        A /= fentry->k;
+                        A /= f_k;
                         continue;
                 case BPF_S_ALU_AND_X:
                         A &= X;
                         continue;
                 case BPF_S_ALU_AND_K:
-                        A &= fentry->k;
+                        A &= f_k;
                         continue;
                 case BPF_S_ALU_OR_X:
                         A |= X;
                         continue;
                 case BPF_S_ALU_OR_K:
-                        A |= fentry->k;
+                        A |= f_k;
                         continue;
                 case BPF_S_ALU_LSH_X:
                         A <<= X;
                         continue;
                 case BPF_S_ALU_LSH_K:
-                        A <<= fentry->k;
+                        A <<= f_k;
                         continue;
                 case BPF_S_ALU_RSH_X:
                         A >>= X;
                         continue;
                 case BPF_S_ALU_RSH_K:
-                        A >>= fentry->k;
+                        A >>= f_k;
                         continue;
                 case BPF_S_ALU_NEG:
                         A = -A;
                         continue;
                 case BPF_S_JMP_JA:
-                        pc += fentry->k;
+                        pc += f_k;
                         continue;
                 case BPF_S_JMP_JGT_K:
-                        pc += (A > fentry->k) ? fentry->jt : fentry->jf;
+                        pc += (A > f_k) ? fentry->jt : fentry->jf;
                         continue;
                 case BPF_S_JMP_JGE_K:
-                        pc += (A >= fentry->k) ? fentry->jt : fentry->jf;
+                        pc += (A >= f_k) ? fentry->jt : fentry->jf;
                         continue;
                 case BPF_S_JMP_JEQ_K:
-                        pc += (A == fentry->k) ? fentry->jt : fentry->jf;
+                        pc += (A == f_k) ? fentry->jt : fentry->jf;
                         continue;
                 case BPF_S_JMP_JSET_K:
-                        pc += (A & fentry->k) ? fentry->jt : fentry->jf;
+                        pc += (A & f_k) ? fentry->jt : fentry->jf;
                         continue;
                 case BPF_S_JMP_JGT_X:
                         pc += (A > X) ? fentry->jt : fentry->jf;
@@ -209,7 +211,7 @@ unsigned int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int
                         pc += (A & X) ? fentry->jt : fentry->jf;
                         continue;
                 case BPF_S_LD_W_ABS:
-                        k = fentry->k;
+                        k = f_k;
 load_w:
                         ptr = load_pointer(skb, k, 4, &tmp);
                         if (ptr != NULL) {
@@ -218,7 +220,7 @@ load_w:
                         }
                         break;
                 case BPF_S_LD_H_ABS:
-                        k = fentry->k;
+                        k = f_k;
 load_h:
                         ptr = load_pointer(skb, k, 2, &tmp);
                         if (ptr != NULL) {
@@ -227,7 +229,7 @@ load_h:
                         }
                         break;
                 case BPF_S_LD_B_ABS:
-                        k = fentry->k;
+                        k = f_k;
 load_b:
                         ptr = load_pointer(skb, k, 1, &tmp);
                         if (ptr != NULL) {
@@ -242,32 +244,34 @@ load_b:
                         X = skb->len;
                         continue;
                 case BPF_S_LD_W_IND:
-                        k = X + fentry->k;
+                        k = X + f_k;
                         goto load_w;
                 case BPF_S_LD_H_IND:
-                        k = X + fentry->k;
+                        k = X + f_k;
                         goto load_h;
                 case BPF_S_LD_B_IND:
-                        k = X + fentry->k;
+                        k = X + f_k;
                         goto load_b;
                 case BPF_S_LDX_B_MSH:
-                        ptr = load_pointer(skb, fentry->k, 1, &tmp);
+                        ptr = load_pointer(skb, f_k, 1, &tmp);
                         if (ptr != NULL) {
                                 X = (*(u8 *)ptr & 0xf) << 2;
                                 continue;
                         }
                         return 0;
                 case BPF_S_LD_IMM:
-                        A = fentry->k;
+                        A = f_k;
                         continue;
                 case BPF_S_LDX_IMM:
-                        X = fentry->k;
+                        X = f_k;
                         continue;
                 case BPF_S_LD_MEM:
-                        A = mem[fentry->k];
+                        A = (memvalid & (1UL << f_k)) ?
+                                mem[f_k] : 0;
                         continue;
                 case BPF_S_LDX_MEM:
-                        X = mem[fentry->k];
+                        X = (memvalid & (1UL << f_k)) ?
+                                mem[f_k] : 0;
                         continue;
                 case BPF_S_MISC_TAX:
                         X = A;
@@ -276,14 +280,16 @@ load_b:
                         A = X;
                         continue;
                 case BPF_S_RET_K:
-                        return fentry->k;
+                        return f_k;
                 case BPF_S_RET_A:
                         return A;
                 case BPF_S_ST:
-                        mem[fentry->k] = A;
+                        memvalid |= 1UL << f_k;
+                        mem[f_k] = A;
                         continue;
                 case BPF_S_STX:
-                        mem[fentry->k] = X;
+                        memvalid |= 1UL << f_k;
+                        mem[f_k] = X;
                         continue;
                 default:
                         WARN_ON(1);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index fbce4b05a53..33bc3823ac6 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -887,7 +887,7 @@ static ssize_t pktgen_if_write(struct file *file,
         i += len;
 
         if (debug) {
-                size_t copy = min(count, 1023);
+                size_t copy = min_t(size_t, count, 1023);
                 char tb[copy + 1];
                 if (copy_from_user(tb, user_buffer, copy))
                         return -EFAULT;
@@ -2612,8 +2612,8 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
         /* Update any of the values, used when we're incrementing various
          * fields.
          */
-        queue_map = pkt_dev->cur_queue_map;
         mod_cur_headers(pkt_dev);
+        queue_map = pkt_dev->cur_queue_map;
 
         datalen = (odev->hard_header_len + 16) & ~0xf;
 
@@ -2976,8 +2976,8 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
         /* Update any of the values, used when we're incrementing various
          * fields.
          */
-        queue_map = pkt_dev->cur_queue_map;
         mod_cur_headers(pkt_dev);
+        queue_map = pkt_dev->cur_queue_map;
 
         skb = __netdev_alloc_skb(odev,
                                  pkt_dev->cur_pkt_size + 64
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 8121268ddbd..841c287ef40 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -347,16 +347,17 @@ static size_t rtnl_link_get_size(const struct net_device *dev)
         if (!ops)
                 return 0;
 
-        size = nlmsg_total_size(sizeof(struct nlattr)) + /* IFLA_LINKINFO */
-               nlmsg_total_size(strlen(ops->kind) + 1);  /* IFLA_INFO_KIND */
+        size = nla_total_size(sizeof(struct nlattr)) + /* IFLA_LINKINFO */
+               nla_total_size(strlen(ops->kind) + 1);  /* IFLA_INFO_KIND */
 
         if (ops->get_size)
                 /* IFLA_INFO_DATA + nested data */
-                size += nlmsg_total_size(sizeof(struct nlattr)) +
+                size += nla_total_size(sizeof(struct nlattr)) +
                         ops->get_size(dev);
 
         if (ops->get_xstats_size)
-                size += ops->get_xstats_size(dev);      /* IFLA_INFO_XSTATS */
+                /* IFLA_INFO_XSTATS */
+                size += nla_total_size(ops->get_xstats_size(dev));
 
         return size;
 }
diff --git a/net/core/sock.c b/net/core/sock.c
index 3eed5424e65..fb608011146 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1653,10 +1653,10 @@ int __sk_mem_schedule(struct sock *sk, int size, int kind)
 {
         struct proto *prot = sk->sk_prot;
         int amt = sk_mem_pages(size);
-        int allocated;
+        long allocated;
 
         sk->sk_forward_alloc += amt * SK_MEM_QUANTUM;
-        allocated = atomic_add_return(amt, prot->memory_allocated);
+        allocated = atomic_long_add_return(amt, prot->memory_allocated);
 
         /* Under limit. */
         if (allocated <= prot->sysctl_mem[0]) {
@@ -1714,7 +1714,7 @@ suppress_allocation:
 
         /* Alas. Undo changes. */
         sk->sk_forward_alloc -= amt * SK_MEM_QUANTUM;
-        atomic_sub(amt, prot->memory_allocated);
+        atomic_long_sub(amt, prot->memory_allocated);
         return 0;
 }
 EXPORT_SYMBOL(__sk_mem_schedule);
@@ -1727,12 +1727,12 @@ void __sk_mem_reclaim(struct sock *sk)
 {
         struct proto *prot = sk->sk_prot;
 
-        atomic_sub(sk->sk_forward_alloc >> SK_MEM_QUANTUM_SHIFT,
+        atomic_long_sub(sk->sk_forward_alloc >> SK_MEM_QUANTUM_SHIFT,
                    prot->memory_allocated);
         sk->sk_forward_alloc &= SK_MEM_QUANTUM - 1;
 
         if (prot->memory_pressure && *prot->memory_pressure &&
-            (atomic_read(prot->memory_allocated) < prot->sysctl_mem[0]))
+            (atomic_long_read(prot->memory_allocated) < prot->sysctl_mem[0]))
                 *prot->memory_pressure = 0;
 }
 EXPORT_SYMBOL(__sk_mem_reclaim);
@@ -2452,12 +2452,12 @@ static char proto_method_implemented(const void *method)
 
 static void proto_seq_printf(struct seq_file *seq, struct proto *proto)
 {
-        seq_printf(seq, "%-9s %4u %6d  %6d   %-3s %6u   %-3s  %-10s "
+        seq_printf(seq, "%-9s %4u %6d  %6ld   %-3s %6u   %-3s  %-10s "
                         "%2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c\n",
                    proto->name,
                    proto->obj_size,
                    sock_prot_inuse_get(seq_file_net(seq), proto),
-                   proto->memory_allocated != NULL ? atomic_read(proto->memory_allocated) : -1,
+                   proto->memory_allocated != NULL ? atomic_long_read(proto->memory_allocated) : -1L,
                    proto->memory_pressure != NULL ? *proto->memory_pressure ? "yes" : "no" : "NI",
                    proto->max_header,
                    proto->slab == NULL ? "no" : "yes",