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2021-03-31net: ethernet: stmicro: Remove duplicate struct declarationWan Jiabing1-1/+0
struct stmmac_safety_stats is declared twice. One has been declared at 29th line. Remove the duplicate. Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31ip6_tunnel: sit: proper dev_{hold|put} in ndo_[un]init methodsEric Dumazet1-1/+1
Same reasons than for the previous commits : 6289a98f0817 ("sit: proper dev_{hold|put} in ndo_[un]init methods") 40cb881b5aaa ("ip6_vti: proper dev_{hold|put} in ndo_[un]init methods") 7f700334be9a ("ip6_gre: proper dev_{hold|put} in ndo_[un]init methods") After adopting CONFIG_PCPU_DEV_REFCNT=n option, syzbot was able to trigger a warning [1] Issue here is that: - all dev_put() should be paired with a corresponding prior dev_hold(). - A driver doing a dev_put() in its ndo_uninit() MUST also do a dev_hold() in its ndo_init(), only when ndo_init() is returning 0. Otherwise, register_netdevice() would call ndo_uninit() in its error path and release a refcount too soon. [1] WARNING: CPU: 1 PID: 21059 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31 Modules linked in: CPU: 1 PID: 21059 Comm: syz-executor.4 Not tainted 5.12.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31 Code: 1d 6a 5a e8 09 31 ff 89 de e8 8d 1a ab fd 84 db 75 e0 e8 d4 13 ab fd 48 c7 c7 a0 e1 c1 89 c6 05 4a 5a e8 09 01 e8 2e 36 fb 04 <0f> 0b eb c4 e8 b8 13 ab fd 0f b6 1d 39 5a e8 09 31 ff 89 de e8 58 RSP: 0018:ffffc900025aefe8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815c51f5 RDI: fffff520004b5def RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815bdf8e R11: 0000000000000000 R12: ffff888023488568 R13: ffff8880254e9000 R14: 00000000dfd82cfd R15: ffff88802ee2d7c0 FS: 00007f13bc590700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0943e74000 CR3: 0000000025273000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __refcount_dec include/linux/refcount.h:344 [inline] refcount_dec include/linux/refcount.h:359 [inline] dev_put include/linux/netdevice.h:4135 [inline] ip6_tnl_dev_uninit+0x370/0x3d0 net/ipv6/ip6_tunnel.c:387 register_netdevice+0xadf/0x1500 net/core/dev.c:10308 ip6_tnl_create2+0x1b5/0x400 net/ipv6/ip6_tunnel.c:263 ip6_tnl_newlink+0x312/0x580 net/ipv6/ip6_tunnel.c:2052 __rtnl_newlink+0x1062/0x1710 net/core/rtnetlink.c:3443 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3491 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5553 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Fixes: 919067cc845f ("net: add CONFIG_PCPU_DEV_REFCNT") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31selftests: ethtool: add a netdevsim FEC testJakub Kicinski2-1/+114
Test FEC settings, iterate over configs. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31netdevsim: add FEC settings supportJakub Kicinski2-0/+39
Add support for ethtool FEC and some ethtool error injection. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-31ethtool: support FEC settings over netlinkJakub Kicinski6-3/+339
Add FEC API to netlink. This is not a 1-to-1 conversion. FEC settings already depend on link modes to tell user which modes are supported. Take this further an use link modes for manual configuration. Old struct ethtool_fecparam is still used to talk to the drivers, so we need to translate back and forth. We can revisit the internal API if number of FEC encodings starts to grow. Enforce only one active FEC bit (by using a bit position rather than another mask). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: ethernet: Fix typo of 'network' in commentEric Lin1-1/+1
Signed-off-by: Eric Lin <dslin1010@gmail.com> Reported-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mlxsw: spectrum_router: Only perform atomic nexthop bucket replacement when requestedIdo Schimmel1-2/+3
When cleared, the 'force' parameter in nexthop bucket replacement notifications indicates that a driver should try to perform an atomic replacement. Meaning, only update the contents of the bucket if it is inactive. Since mlxsw only queries buckets' activity once every second, there is no point in trying an atomic replacement if the idle timer interval is smaller than 1 second. Currently, mlxsw ignores the original value of 'force' and will always try an atomic replacement if the idle timer is not smaller than 1 second. Fix this by taking the original value of 'force' into account and never promoting a non-atomic replacement to an atomic one. Fixes: 617a77f044ed ("mlxsw: spectrum_router: Add nexthop bucket replacement support") Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30selftests: mptcp: remove id 0 address testcasesGeliang Tang1-2/+33
This patch added the testcases for removing the id 0 subflow and the id 0 address. In do_transfer, use the removing addresses number '9' for deleting the id 0 address. Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30selftests: mptcp: add addr argument for del_addrGeliang Tang1-3/+31
For the id 0 address, different MPTCP connections could be using different IP addresses for id 0. This patch added an extra argument IP address for del_addr when using id 0. Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30selftests: mptcp: avoid calling pm_nl_ctl with bad IDsMatthieu Baerts1-3/+3
IDs are supposed to be between 0 and 255. In pm_nl_ctl, for both the 'add' and 'get' instruction, the ID is casted in a u_int8_t. So if we give 256, we will delete ID 0. Obviously, the goal is not to delete this ID by giving 256. We could modify pm_nl_ctl and stop if the ID is negative or higher than 255 but probably better not to increase the number of lines for such things in this tool which is only used in selftests. Instead, we use it within the limits. This modification also means that we will no longer add a new ID for the 2nd entry. That's why we removed an expected entry from the dump and introduced with commit dc8eb10e95a8 ("selftests: mptcp: add testcases for setting the address ID"). So now we delete ID 9 like before and we add entries for IDs 10 to 255 that are deleted just after. Note that this could be seen as a fix but it was not really an issue so far: we were simply playing with ID 0/1 once again. With the following commit ("selftests: mptcp: add addr argument for del_addr"), it will be different because ID 0 is going to required an address. We don't want errors when trying to delete ID 0 without the address argument. Acked-and-tested-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mptcp: remove id 0 addressGeliang Tang1-0/+43
This patch added a new function mptcp_nl_remove_id_zero_address to remove the id 0 address. In this function, traverse all the existing msk sockets to find the msk matched the input IP address. Then fill the removing list with id 0, and pass it to mptcp_pm_remove_addr and mptcp_pm_remove_subflow. Suggested-by: Paolo Abeni <pabeni@redhat.com> Suggested-by: Matthieu Baerts <matthieu.baerts@tessares.net> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mptcp: unify RM_ADDR and RM_SUBFLOW receivingGeliang Tang1-49/+33
There are some duplicate code in mptcp_pm_nl_rm_addr_received and mptcp_pm_nl_rm_subflow_received. This patch unifies them into a new function named mptcp_pm_nl_rm_addr_or_subflow. In it, use the input parameter rm_type to identify it's now removing an address or a subflow. Suggested-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mptcp: remove all subflows involving id 0 addressGeliang Tang1-4/+0
There's only one subflow involving the non-zero id address, but there may be multi subflows involving the id 0 address. Here's an example: local_id=0, remote_id=0 local_id=1, remote_id=0 local_id=0, remote_id=1 If the removing address id is 0, all the subflows involving the id 0 address need to be removed. In mptcp_pm_nl_rm_addr_received/mptcp_pm_nl_rm_subflow_received, the "break" prevents the iteration to the next subflow, so this patch dropped them. Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: fix icmp_echo_enable_probe sysctlEric Dumazet1-2/+2
sysctl_icmp_echo_enable_probe is an u8. ipv4_net_table entry should use .maxlen = sizeof(u8). .proc_handler = proc_dou8vec_minmax, Fixes: f1b8fa9fa586 ("net: add sysctl for enabling RFC 8335 PROBE messages") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ionic: pull per-q stats work out of queue loopsShannon Nelson1-94/+125
Abstract out the per-queue data collection work into separate functions from the per-queue loops in the stats reporting, similar to what Alex did for the data label strings in commit acebe5b6107c ("ionic: Update driver to use ethtool_sprintf") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ionic: avoid races in ionic_heartbeat_checkShannon Nelson2-37/+63
Rework the heartbeat checks to be sure that we're getting an atomic operation. Through testing we found occasions where a separate thread could clash with this check and cause erroneous heartbeat check results. Signed-off-by: Allen Hubbe <allenbh@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ionic: fix sizeof usageShannon Nelson1-4/+4
Use the actual pointer that we care about as the subject of the sizeof, rather than a struct name. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ionic: count dma errorsShannon Nelson1-2/+7
Increment our dma-error counter in a couple of spots that were missed before. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30dpaa2-switch: setup learning state on STP state changeIoana Ciornei1-8/+26
Depending on what STP state a port is in, the learning on that port should be enabled or disabled. When the STP state is DISABLED, BLOCKING or LISTENING no learning should be happening irrespective of what the bridge previously requested. The learning state is changed to be the one setup by the bridge when the STP state is LEARNING or FORWARDING. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30dpaa2-switch: trap STP frames to the CPUIoana Ciornei5-0/+289
Add an ACL entry in each port's ACL table to redirect any frame that has the destination MAC address equal to the STP dmac to the control interface. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30dpaa2-switch: keep track of the current learning state per portIoana Ciornei2-0/+5
Keep track of the current learning state per port so that we can reference it in the next patches when setting up a STP state. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30dpaa2-switch: create and assign an ACL table per portIoana Ciornei5-1/+193
In order to trap frames to the CPU, the DPAA2 switch uses the ACL table. At probe time, create an ACL table for each switch port so that in the next patches we can use this to trap STP frames and redirect them to the control interface. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30dpaa2-switch: fix the translation between the bridge and dpsw STP statesIoana Ciornei1-3/+20
The numerical values used for STP states are different between the bridge and the MC ABI therefore, the direct usage of the BR_STATE_* macros directly in the structures passed to the firmware is incorrect. Create a separate function that translates between the bridge STP states and the enum that holds the STP state as seen by the Management Complex. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30tc-testing: add simple action change testVlad Buslov1-0/+24
Use act_simple to verify that action created with 'tc actions change' command exists after command returns. The goal is to verify internal action API reference counting to ensure that the case when netlink message has NLM_F_REPLACE flag set but action with specified index doesn't exist is handled correctly. Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30selftests: net: add UDP GRO forwarding self-testsPaolo Abeni2-0/+252
Create a bunch of virtual topologies and verify that NETIF_F_GRO_FRAGLIST or NETIF_F_GRO_UDP_FWD-enabled devices aggregate the ingress packets as expected. Additionally check that the aggregate packets are segmented correctly when landing on a socket Also test SKB_GSO_FRAGLIST and SKB_GSO_UDP_L4 aggregation on top of UDP tunnel (vxlan) v1 -> v2: - hopefully clarify the commit message - moved the overlay network ipv6 range into the 'documentation' reserved range (Willem) Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30bareudp: allow UDP L4 GRO passthrouPaolo Abeni1-0/+1
Similar to the previous commit, let even geneve passthrou the L4 GRO packets Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30geneve: allow UDP L4 GRO passthrouPaolo Abeni1-0/+1
Similar to the previous commit, let even geneve passthrou the L4 GRO packets Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30vxlan: allow L4 GRO passthroughPaolo Abeni2-0/+7
When passing up an UDP GSO packet with L4 aggregation, there is no need to segment it at the vxlan level. We can propagate the packet untouched and let it be segmented later, if needed. Introduce an helper to allow let the UDP socket to accept any L4 aggregation and use it in the vxlan driver. v1 -> v2: - updated to use the newly introduced UDP socket 'accept*' fields Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30udp: never accept GSO_FRAGLIST packetsPaolo Abeni2-3/+16
Currently the UDP protocol delivers GSO_FRAGLIST packets to the sockets without the expected segmentation. This change addresses the issue introducing and maintaining a couple of new fields to explicitly accept SKB_GSO_UDP_L4 or GSO_FRAGLIST packets. Additionally updates udp_unexpected_gso() accordingly. UDP sockets enabling UDP_GRO stil keep accept_udp_fraglist zeroed. v1 -> v2: - use 2 bits instead of a whole GSO bitmask (Willem) Fixes: 9fd1ff5d2ac7 ("udp: Support UDP fraglist GRO/GSO.") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30udp: properly complete L4 GRO over UDP tunnel packetPaolo Abeni2-2/+9
After the previous patch, the stack can do L4 UDP aggregation on top of a UDP tunnel. In such scenario, udp{4,6}_gro_complete will be called twice. This function will enter its is_flist branch immediately, even though that is only correct on the second call, as GSO_FRAGLIST is only relevant for the inner packet. Instead, we need to try first UDP tunnel-based aggregation, if the GRO packet requires that. This patch changes udp{4,6}_gro_complete to skip the frag list processing when while encap_mark == 1, identifying processing of the outer tunnel header. Additionally, clears the field in udp_gro_complete() so that we can enter the frag list path on the next round, for the inner header. v1 -> v2: - hopefully clarified the commit message Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30udp: skip L4 aggregation for UDP tunnel packetsPaolo Abeni1-8/+11
If NETIF_F_GRO_FRAGLIST or NETIF_F_GRO_UDP_FWD are enabled, and there are UDP tunnels available in the system, udp_gro_receive() could end-up doing L4 aggregation (either SKB_GSO_UDP_L4 or SKB_GSO_FRAGLIST) at the outer UDP tunnel level for packets effectively carrying and UDP tunnel header. That could cause inner protocol corruption. If e.g. the relevant packets carry a vxlan header, different vxlan ids will be ignored/ aggregated to the same GSO packet. Inner headers will be ignored, too, so that e.g. TCP over vxlan push packets will be held in the GRO engine till the next flush, etc. Just skip the SKB_GSO_UDP_L4 and SKB_GSO_FRAGLIST code path if the current packet could land in a UDP tunnel, and let udp_gro_receive() do GRO via udp_sk(sk)->gro_receive. The check implemented in this patch is broader than what is strictly needed, as the existing UDP tunnel could be e.g. configured on top of a different device: we could end-up skipping GRO at-all for some packets. Anyhow, that is a very thin corner case and covering it will add quite a bit of complexity. v1 -> v2: - hopefully clarify the commit message Fixes: 9fd1ff5d2ac7 ("udp: Support UDP fraglist GRO/GSO.") Fixes: 36707061d6ba ("udp: allow forwarding of plain (non-fraglisted) UDP GRO packets") Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30udp: fixup csum for GSO receive slow pathPaolo Abeni3-0/+26
When UDP packets generated locally by a socket with UDP_SEGMENT traverse the following path: UDP tunnel(xmit) -> veth (segmentation) -> veth (gro) -> UDP tunnel (rx) -> UDP socket (no UDP_GRO) ip_summed will be set to CHECKSUM_PARTIAL at creation time and such checksum mode will be preserved in the above path up to the UDP tunnel receive code where we have: __iptunnel_pull_header() -> skb_pull_rcsum() -> skb_postpull_rcsum() -> __skb_postpull_rcsum() The latter will convert the skb to CHECKSUM_NONE. The UDP GSO packet will be later segmented as part of the rx socket receive operation, and will present a CHECKSUM_NONE after segmentation. Additionally the segmented packets UDP CB still refers to the original GSO packet len. Overall that causes unexpected/wrong csum validation errors later in the UDP receive path. We could possibly address the issue with some additional checks and csum mangling in the UDP tunnel code. Since the issue affects only this UDP receive slow path, let's set a suitable csum status there. Note that SKB_GSO_UDP_L4 or SKB_GSO_FRAGLIST packets lacking an UDP encapsulation present a valid checksum when landing to udp_queue_rcv_skb(), as the UDP checksum has been validated by the GRO engine. v2 -> v3: - even more verbose commit message and comments v1 -> v2: - restrict the csum update to the packets strictly needing them - hopefully clarify the commit message and code comments Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ppp: deflate: Remove useless call "zlib_inflateEnd"Jiapeng Chong1-1/+0
Fix the following whitescan warning: Calling "zlib_inflateEnd(&state->strm)" is only useful for its return value, which is ignored. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: ipa: remove repeated wordsPeng Li1-2/+2
Remove repeated words "that" and "the". Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Acked-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: phy: remove repeated wordPeng Li1-1/+1
Remove repeated word "to". Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: bonding: remove repeated wordPeng Li1-1/+1
Remove repeated word "that". Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: i40e: remove repeated wordsPeng Li1-2/+2
Remove repeated words "to" and "try". Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net/decnet: Delete obsolete TODO fileWang Qing1-40/+0
The TODO file here has not been updated from 2005, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net/ax25: Delete obsolete TODO fileWang Qing1-20/+0
The TODO file here has not been updated for 13 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30fs/jffs2: Delete obsolete TODO fileWang Qing1-37/+0
The TODO file here has not been updated for 14 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30fs/befs: Delete obsolete TODO fileWang Qing1-14/+0
The TODO file here has not been updated from 2005, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30scsi/aacraid: Delete obsolete TODO fileWang Qing1-3/+0
The TODO file here has not been updated from 2.6.12 for more than 15 years. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mips/sgi-ip27: Delete obsolete TODO fileWang Qing1-19/+0
The TODO file here has not been updated for 15 years, and the function development described in the file have been implemented or abandoned. Its existence will mislead developers seeking to view outdated information. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: mhi: remove pointless conditional before kfree_skb()Yang Yingliang1-2/+1
It already has null pointer check in kfree_skb(), remove pointless pointer check before kfree_skb(). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30stmmac: intel: add cross time-stamping freq difference adjustmentWong Vee Khee1-0/+27
Cross time-stamping mechanism used in certain instance of Intel mGbE may run at different clock frequency in comparison to the clock frequency used by processor, so we introduce cross T/S frequency adjustment to ensure TSC calculation is correct when processor got the cross time-stamps. Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mISDN: Use LIST_HEAD() for list_headShixin Liu2-8/+3
There's no need to declare a list and then init it manually, just use the LIST_HEAD() macro. Signed-off-by: Shixin Liu <liushixin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mISDN: Use DEFINE_SPINLOCK() for spinlockShixin Liu3-9/+4
spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Changelog: From v1: 1. fix the mistake reported by kernel test robot. Signed-off-by: Shixin Liu <liushixin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30icmp: add response to RFC 8335 PROBE messagesAndreas Roeseler1-13/+121
Modify the icmp_rcv function to check PROBE messages and call icmp_echo if a PROBE request is detected. Modify the existing icmp_echo function to respond ot both ping and PROBE requests. This was tested using a custom modification to the iputils package and wireshark. It supports IPV4 probing by name, ifindex, and probing by both IPV4 and IPV6 addresses. It currently does not support responding to probes off the proxy node (see RFC 8335 Section 2). The modification to the iputils package is still in development and can be found here: https://github.com/Juniper-Clinic-2020/iputils.git. It supports full sending functionality of PROBE requests, but currently does not parse the response messages, which is why Wireshark is required to verify the sent and recieved PROBE messages. The modification adds the ``-e'' flag to the command which allows the user to specify the interface identifier to query the probed host. An example usage would be <./ping -4 -e 1 [destination]> to send a PROBE request of ifindex 1 to the destination node. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ipv6: add ipv6_dev_find to stubsAndreas Roeseler3-0/+10
Add ipv6_dev_find to ipv6_stub to allow lookup of net_devices by IPV6 address in net/ipv4/icmp.c. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: add support for sending RFC 8335 PROBE messagesAndreas Roeseler1-1/+3
Modify the ping_supported function to support PROBE message types. This allows tools such as the ping command in the iputils package to be modified to send PROBE requests through the existing framework for sending ping requests. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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