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authorJakub Kicinski <kuba@kernel.org>2024-02-15 23:01:43 +0100
committerJakub Kicinski <kuba@kernel.org>2024-02-16 01:20:04 +0100
commit73be9a3aabdd976123e7f05dd20dbcf131347e84 (patch)
tree7b9575df90cae451b7640d53d5e3b3858900a275 /net/core
parentMerge branch 'net-ipv6-addrconf-ensure-that-temporary-addresses-preferred-lif... (diff)
parentMerge tag 'net-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netd... (diff)
downloadlinux-73be9a3aabdd976123e7f05dd20dbcf131347e84.tar.xz
linux-73be9a3aabdd976123e7f05dd20dbcf131347e84.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: net/core/dev.c 9f30831390ed ("net: add rcu safety to rtnl_prop_list_size()") 723de3ebef03 ("net: free altname using an RCU callback") net/unix/garbage.c 11498715f266 ("af_unix: Remove io_uring code for GC.") 25236c91b5ab ("af_unix: Fix task hung while purging oob_skb in GC.") drivers/net/ethernet/renesas/ravb_main.c ed4adc07207d ("net: ravb: Count packets instead of descriptors in GbEth RX path" ) c2da9408579d ("ravb: Add Rx checksum offload support for GbEth") net/mptcp/protocol.c bdd70eb68913 ("mptcp: drop the push_pending field") 28e5c1380506 ("mptcp: annotate lockless accesses around read-mostly fields") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c5
-rw-r--r--net/core/rtnetlink.c15
2 files changed, 12 insertions, 8 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index d8dd293a7a27..cc9c2eda65ac 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -316,7 +316,7 @@ int netdev_name_node_alt_create(struct net_device *dev, const char *name)
return -ENOMEM;
netdev_name_node_add(net, name_node);
/* The node that holds dev->name acts as a head of per-device list. */
- list_add_tail(&name_node->list, &dev->name_node->list);
+ list_add_tail_rcu(&name_node->list, &dev->name_node->list);
return 0;
}
@@ -11695,11 +11695,12 @@ static void __init net_dev_struct_check(void)
CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_tx, 160);
/* TXRX read-mostly hotpath */
+ CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, lstats);
CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, flags);
CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, hard_header_len);
CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, features);
CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, ip6_ptr);
- CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 30);
+ CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 38);
/* RX read-mostly hotpath */
CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, ptype_specific);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 39e66bf3e238..c54dbe05c4c5 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1019,14 +1019,17 @@ static size_t rtnl_xdp_size(void)
static size_t rtnl_prop_list_size(const struct net_device *dev)
{
struct netdev_name_node *name_node;
- size_t size;
+ unsigned int cnt = 0;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(name_node, &dev->name_node->list, list)
+ cnt++;
+ rcu_read_unlock();
- if (list_empty(&dev->name_node->list))
+ if (!cnt)
return 0;
- size = nla_total_size(0);
- list_for_each_entry(name_node, &dev->name_node->list, list)
- size += nla_total_size(ALTIFNAMSIZ);
- return size;
+
+ return nla_total_size(0) + cnt * nla_total_size(ALTIFNAMSIZ);
}
static size_t rtnl_proto_down_size(const struct net_device *dev)