- 06 Apr, 2020 10 commits
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Florian Fainelli authored
When the bcm_sf2 was converted into a proper platform device driver and used the new dsa_register_switch() interface, we would still be parsing the legacy DSA node that contained all the port information since the platform firmware has intentionally maintained backward and forward compatibility to client programs. Ensure that we do parse the correct node, which is "ports" per the revised DSA binding. Fixes: d9338023 ("net: dsa: bcm_sf2: Make it a real platform device driver") Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Colin Ian King authored
The variable 'rc' is being assigned a value that is never read and it is being updated later with a new value. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
In function i2400m_bm_buf_alloc there is no need to use a variable 'result' to return -ENOMEM, just return the literal value. In the function i2400m_setup the variable 'result' is initialized with a value that is never read, it is a redundant assignment that can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: -
David S. Miller authored
Ido Schimmel says: ==================== mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_{VLAN_MANGLE, PRIORITY} Petr says: The handlers for FLOW_ACTION_VLAN_MANGLE and FLOW_ACTION_PRIORITY end by returning whatever the lower-level function that they call returns. If there are more actions lined up after one of these actions, those are never offloaded. Each of the two patches fixes one of those actions. v2: * Patch #1: Use valid SHA1 ID in Fixes line (Dave) ==================== Signed-off-by: -
Petr Machata authored
The handler for FLOW_ACTION_VLAN_MANGLE ends by returning whatever the lower-level function that it calls returns. If there are more actions lined up after this action, those are never offloaded. Fix by only bailing out when the called function returns an error. Fixes: a150201a ("mlxsw: spectrum: Add support for vlan modify TC action") Signed-off-by:
Petr Machata <petrm@mellanox.com> Reviewed-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Petr Machata authored
The handler for FLOW_ACTION_PRIORITY ends by returning whatever the lower-level function that it calls returns. If there are more actions lined up after this action, those are never offloaded. Fix by only bailing out when the called function returns an error. Fixes: 463957e3 ("mlxsw: spectrum_flower: Offload FLOW_ACTION_PRIORITY") Signed-off-by:
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Heiner Kallweit authored
There has been a number of reports that using SG/TSO on different chip versions results in tx timeouts. However for a lot of people SG/TSO works fine. Therefore disable both features by default, but allow users to enable them. Use at own risk! Fixes: 93681cd7 ("r8169: enable HW csum and TSO") Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Florian Fainelli authored
We were registering our slave MDIO bus with OF and doing so with assigning the newly created slave_mii_bus of_node to the master MDIO bus controller node. This is a bad thing to do for a number of reasons: - we are completely lying about the slave MII bus is arranged and yet we still want to control which MDIO devices it probes. It was attempted before to play tricks with the bus_mask to perform that: https://www.spinics.net/lists/netdev/msg429420.html but the approach was rightfully rejected - the device_node reference counting is messed up and we are effectively doing a double probe on the devices we already probed using the master, this messes up all resources reference counts (such as clocks) The proper fix for this as indicated by David in his reply to the thread above is to use a platform data style registration so as to control exactly which devices we probe: https://www.spinics.net/lists/netdev/msg430083.html By using mdiobus_register(), our slave_mii_bus->phy_mask value is used as intended, and all the PHY addresses that must be redirected towards our slave MDIO bus is happening while other addresses get redirected towards the master MDIO bus. Fixes: 461cd1b0 ("net: dsa: bcm_sf2: Register our slave MDIO bus") Signed-off-by:
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Alexander Aring authored
This patch fix the loop iteration by not walking over the last iteration. The cmpri compressing value exempt the last segment. As the code shows the last iteration will be overwritten by cmpre value handling which is for the last segment. I think this doesn't end in any bufferoverflows because we work on worst case temporary buffer sizes but it ends in not best compression settings in some cases. Fixes: 8610c7c6 ("net: ipv6: add support for rpl sr exthdr") Signed-off-by:
Alexander Aring <alex.aring@gmail.com> Signed-off-by:
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Will Deacon authored
When an XDP program is installed, tun_build_skb() grabs a reference to the current page fragment page if the program returns XDP_REDIRECT or XDP_TX. However, since tun_xdp_act() passes through negative return values from the XDP program, it is possible to trigger the error path by mistake and accidentally drop a reference to the fragments page without taking one, leading to a spurious free. This is believed to be the cause of some KASAN use-after-free reports from syzbot [1], although without a reproducer it is not possible to confirm whether this patch fixes the problem. Ensure that we only drop a reference to the fragments page if the XDP transmit or redirect operations actually fail. [1] https://syzkaller.appspot.com/bug?id=e76a6af1be4acd727ff6bbca669833f98cbf5d95 Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> CC: Eric Dumazet <edumazet@google.com> Acked-by:
Jason Wang <jasowang@redhat.com> Fixes: 8ae1aff0 ("tuntap: split out XDP logic") Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
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- 03 Apr, 2020 10 commits
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Chuanhong Guo authored
The 2nd gmac of mediatek soc ethernet may not be connected to a PHY and a phy-handle isn't always available. Unfortunately, mt7530 dsa driver assumes that the 2nd gmac is always connected to switch port 5 and setup mt7530 according to phy address of 2nd gmac node, causing null pointer dereferencing when phy-handle isn't defined in dts. This commit fix this setup code by checking return value of of_parse_phandle before using it. Fixes: 38f790a8 ("net: dsa: mt7530: Add support for port 5") Signed-off-by:
Chuanhong Guo <gch981213@gmail.com> Reviewed-by:
René van Dorst <opensource@vdorst.com> Signed-off-by:
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Geliang Tang authored
Some of the mptcp logs didn't print out the format string: [ 185.651493] DSS [ 185.651494] data_fin=0 dsn64=0 use_map=0 ack64=1 use_ack=1 [ 185.651494] data_ack=13792750332298763796 [ 185.651495] MPTCP: msk=00000000c4b81cfc ssk=000000009743af53 data_avail=0 skb=0000000063dc595d [ 185.651495] MPTCP: msk=00000000c4b81cfc ssk=000000009743af53 status=0 [ 185.651495] MPTCP: msk ack_seq=9bbc894565aa2f9a subflow ack_seq=9bbc894565aa2f9a [ 185.651496] MPTCP: msk=00000000c4b81cfc ssk=000000009743af53 data_avail=1 skb=0000000012e809e1 So this patch added these missing pr_fmt defines. Then we can get the same format string "MPTCP" in all mptcp logs like this: [ 142.795829] MPTCP: DSS [ 142.795829] MPTCP: data_fin=0 dsn64=0 use_map=0 ack64=1 use_ack=1 [ 142.795829] MPTCP: data_ack=8089704603109242421 [ 142.795830] MPTCP: msk=00000000133a24e0 ssk=000000002e508c64 data_avail=0 skb=00000000d5f230df [ 142.795830] MPTCP: msk=00000000133a24e0 ssk=000000002e508c64 status=0 [ 142.795831] MPTCP: msk ack_seq=66790290f1199d9b subflow ack_seq=66790290f1199d9b [ 142.795831] MPTCP: msk=00000000133a24e0 ssk=000000002e508c64 data_avail=1 skb=00000000de5aca2e Signed-off-by:
Geliang Tang <geliangtang@gmail.com> Reviewed-by:
Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by:
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Oleksij Rempel authored
After the power-down bit is cleared, the chip internally triggers a global reset. According to the KSZ9031 documentation, we have to wait at least 1ms for the reset to finish. If the chip is accessed during reset, read will return 0xffff, while write will be ignored. Depending on the system performance and MDIO bus speed, we may or may not run in to this issue. This bug was discovered on an iMX6QP system with KSZ9031 PHY and attached PHY interrupt line. If IRQ was used, the link status update was lost. In polling mode, the link status update was always correct. The investigation showed, that during a read-modify-write access, the read returned 0xffff (while the chip was still in reset) and corresponding write hit the chip _after_ reset and triggered (due to the 0xffff) another reset in an undocumented bit (register 0x1f, bit 1), resulting in the next write being lost due to the new reset cycle. This patch fixes the issue by adding a 1...2 ms sleep after the genphy_resume(). Fixes: 836384d2 ("net: phy: micrel: Add specific suspend") Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
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Cong Wang authored
The initial refcnt of struct tcindex_data should be 1, it is clear that I forgot to set it to 1 in tcindex_init(). This leads to a dec-after-zero warning. Reported-by: syzbot+8325e509a1bf83ec741d@syzkaller.appspotmail.com Fixes: 304e0242 ("net_sched: add a temporary refcnt for struct tcindex_data") Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jiri Pirko <jiri@resnulli.us> Cc: Paul E. McKenney <paulmck@kernel.org> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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Jisheng Zhang authored
Commit 9463c445 ("net: stmmac: dwmac1000: Clear unused address entries") cleared the unused mac address entries, but introduced an out-of bounds mac address register programming bug -- After setting the secondary unicast mac addresses, the "reg" value has reached netdev_uc_count() + 1, thus we should only clear address entries if (addr < perfect_addr_number) Fixes: 9463c445 ("net: stmmac: dwmac1000: Clear unused address entries") Signed-off-by:
Jisheng Zhang <Jisheng.Zhang@synaptics.com> Signed-off-by:
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Colin Ian King authored
Shifting the integer value 1 is evaluated using 32-bit arithmetic and then used in an expression that expects a 64-bit value, so there is potentially an integer overflow. Fix this by using the BIT_ULL macro to perform the shift and avoid the overflow. Addresses-Coverity: ("Unintentional integer overflow") Fixes: 13f2e64b ("mlxsw: spectrum_trap: Add devlink-trap policer support") Signed-off-by: -
Petko Manolov authored
Remove pegasus' own workqueue and replace it with system_long_wq. Signed-off-by:
Petko Manolov <petkan@nucleusys.com> Signed-off-by:
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Hangbin Liu authored
Currently, we limited the retrans_time to be greater than HZ/2. i.e. setting retrans_time less than 500ms will not work. This makes the user unable to achieve a more accurate control for bonding arp fast failover. Update the sanity check to HZ/100, which is 10ms, to let users have more ability on the retrans_time control. v3: sync the behavior with IPv6 and update all the timer handler v2: use HZ instead of hard code number Signed-off-by:
Hangbin Liu <liuhangbin@gmail.com> Signed-off-by:
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Tonghao Zhang authored
The struct sw_flow is protected by RCU, when traversing them, use hlist_for_each_entry_rcu. Signed-off-by:
Tonghao Zhang <xiangxia.m.yue@gmail.com> Tested-by:
Greg Rose <gvrose8192@gmail.com> Reviewed-by:
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Vincent Bernat authored
Currently, SO_BINDTODEVICE requires CAP_NET_RAW. This change allows a non-root user to bind a socket to an interface if it is not already bound. This is useful to allow an application to bind itself to a specific VRF for outgoing or incoming connections. Currently, an application wanting to manage connections through several VRF need to be privileged. Previously, IP_UNICAST_IF and IPV6_UNICAST_IF were added for Wine (76e21053 and c4062dfc) specifically for use by non-root processes. However, they are restricted to sendmsg() and not usable with TCP. Allowing SO_BINDTODEVICE would allow TCP clients to get the same privilege. As for TCP servers, outside the VRF use case, SO_BINDTODEVICE would only further restrict connections a server could accept. When an application is restricted to a VRF (with `ip vrf exec`), the socket is bound to an interface at creation and therefore, a non-privileged call to SO_BINDTODEVICE to escape the VRF fails. When an application bound a socket to SO_BINDTODEVICE and transmit it to a non-privileged process through a Unix socket, a tentative to change the bound device also fails. Before: >>> import socket >>> s=socket.socket(socket.AF_INET, socket.SOCK_STREAM) >>> s.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, b"dummy0") Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 1] Operation not permitted After: >>> import socket >>> s=socket.socket(socket.AF_INET, socket.SOCK_STREAM) >>> s.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, b"dummy0") >>> s.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, b"dummy0") Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 1] Operation not permitted Signed-off-by:
Vincent Bernat <vincent@bernat.ch> Reviewed-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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- 02 Apr, 2020 12 commits
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Jose Abreu authored
Commit 907a0768, forgot that we need to clear old values of XGMAC_VLAN_TAG register when we switch from VLAN perfect matching to HASH matching. Fix it. Fixes: 907a0768 ("net: stmmac: xgmac: fix incorrect XGMAC_VLAN_TAG register writting") Signed-off-by:
Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by:
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YueHaibing authored
If CAVIUM_PTP is m and THUNDER_NIC_VF is y, build fails: drivers/net/ethernet/cavium/thunder/nicvf_main.o: In function 'nicvf_remove': nicvf_main.c:(.text+0x1f0): undefined reference to 'cavium_ptp_put' drivers/net/ethernet/cavium/thunder/nicvf_main.o: In function `nicvf_probe': nicvf_main.c:(.text+0x557c): undefined reference to 'cavium_ptp_get' THUNDER_NIC_VF imply CAVIUM_PTP, which allow the config now, Use IS_REACHABLE() to avoid the vmlinux link error for this case. Reported-by:
Hulk Robot <hulkci@huawei.com> Fixes: def2fbff ("kconfig: allow symbols implied by y to become m") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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David S. Miller authored
Florian Westphal says: ==================== mptcp: various bugfixes and improvements This series contains the following mptcp bug fixes: 1. Fix crash on tcp fallback when userspace doesn't provide a 'struct sockaddr' to accept(). 2. Close mptcp socket only when all subflows have closed, not just the first. 3. avoid stream data corruption when we'd receive identical mapping at the exact same time on multiple subflows. 4. Fix "fn parameter not described" kerneldoc warnings. ==================== Signed-off-by: -
Matthieu Baerts authored
Obtained with: $ make W=1 net/mptcp/token.o net/mptcp/token.c:53: warning: Function parameter or member 'req' not described in 'mptcp_token_new_request' net/mptcp/token.c:98: warning: Function parameter or member 'sk' not described in 'mptcp_token_new_connect' net/mptcp/token.c:133: warning: Function parameter or member 'conn' not described in 'mptcp_token_new_accept' net/mptcp/token.c:178: warning: Function parameter or member 'token' not described in 'mptcp_token_destroy_request' net/mptcp/token.c:191: warning: Function parameter or member 'token' not described in 'mptcp_token_destroy' Fixes: 79c0949e (mptcp: Add key generation and token tree) Fixes: 58b09919 (mptcp: create msk early) Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Florian Westphal authored
mptcp_subflow_data_available() is commonly called via ssk->sk_data_ready(), in this case the mptcp socket lock cannot be acquired. Therefore, while we can safely discard subflow data that was already received up to msk->ack_seq, we cannot be sure that 'subflow->data_avail' will still be valid at the time userspace wants to read the data -- a previous read on a different subflow might have carried this data already. In that (unlikely) event, msk->ack_seq will have been updated and will be ahead of the subflow dsn. We can check for this condition and skip/resync to the expected sequence number. Signed-off-by:
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Florian Westphal authored
This is needed at least until proper MPTCP-Level fin/reset signalling gets added: We wake parent when a subflow changes, but we should do this only when all subflows have closed, not just one. Schedule the mptcp worker and tell it to check eof state on all subflows. Only flag mptcp socket as closed and wake userspace processes blocking in poll if all subflows have closed. Co-developed-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
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Florian Westphal authored
Christoph Paasch reports following crash: general protection fault [..] CPU: 0 PID: 2874 Comm: syz-executor072 Not tainted 5.6.0-rc5 #62 RIP: 0010:__pv_queued_spin_lock_slowpath kernel/locking/qspinlock.c:471 [..] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:50 [inline] do_raw_spin_lock include/linux/spinlock.h:181 [inline] spin_lock_bh include/linux/spinlock.h:343 [inline] __mptcp_flush_join_list+0x44/0xb0 net/mptcp/protocol.c:278 mptcp_shutdown+0xb3/0x230 net/mptcp/protocol.c:1882 [..] Problem is that mptcp_shutdown() socket isn't an mptcp socket, its a plain tcp_sk. Thus, trying to access mptcp_sk specific members accesses garbage. Root cause is that accept() returns a fallback (tcp) socket, not an mptcp one. There is code in getpeername to detect this and override the sockets stream_ops. But this will only run when accept() caller provided a sockaddr struct. "accept(fd, NULL, 0)" will therefore result in mptcp stream ops, but with sock->sk pointing at a tcp_sk. Update the existing fallback handling to detect this as well. Moreover, mptcp_shutdown did not have fallback handling, and mptcp_poll did it too late so add that there as well. Reported-by:
Christoph Paasch <cpaasch@apple.com> Tested-by:
Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by:
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Colin Ian King authored
The variable err is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: -
YueHaibing authored
drivers/crypto/chelsio/chcr_ktls.c: In function ‘chcr_short_record_handler’: drivers/crypto/chelsio/chcr_ktls.c:1770:12: error: implicit declaration of function ‘kmap_atomic’; did you mean ‘in_atomic’? [-Werror=implicit-function-declaration] vaddr = kmap_atomic(skb_frag_page(f)); ^~~~~~~~~~~ Reported-by: -
kbuild test robot authored
Fixes: f41071407c85 ("net: dsa: implement auto-normalization of MTU for bridge hardware datapath") Signed-off-by:kbuild test robot <lkp@intel.com> Signed-off-by:
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Colin Ian King authored
rec->llc is currently being assigned twice, once with the lower 8 bits from packed_record[8] and then re-assigned afterwards with data from packed_record[9]. This looks like a type, I believe the second assignment should be using the |= operator rather than a direct assignment. Addresses-Coverity: ("Unused value") Fixes: b8f8a0b7 ("net: atlantic: MACSec ingress offload HW bindings") Signed-off-by:Igor Russkikh <irusskikh@marell.com> Signed-off-by:
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Subash Abhinov Kasiviswanathan authored
This allows the changelink operation to succeed if the mux_id was specified as an argument. Note that the mux_id must match the existing mux_id of the rmnet device or should be an unused mux_id. Fixes: 1dc49e9d ("net: rmnet: do not allow to change mux id if mux id is duplicated") Reported-and-tested-by:
Alex Elder <elder@linaro.org> Signed-off-by:
Sean Tranchetti <stranche@codeaurora.org> Signed-off-by:
Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Signed-off-by:
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- 01 Apr, 2020 8 commits
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Rob Herring authored
The example for Marvell USB to MDIO Controller doesn't build: Error: Documentation/devicetree/bindings/net/marvell,mvusb.example.dts:18.9-14 syntax error FATAL ERROR: Unable to parse input tree This is due to label refs being used which can't be resolved. Fixes: 61e0150c ("dt-bindings: net: add marvell usb to mdio bindings") Cc: Tobias Waldekranz <tobias@waldekranz.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Jose Abreu authored
If we don't have any filters available we can't rely upon the return code of stmmac_add_hw_vlan_rx_fltr() / stmmac_del_hw_vlan_rx_fltr(). Add a check for this. Fixes: ed64639b ("net: stmmac: Add support for VLAN Rx filtering") Signed-off-by:
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Hu Haowen authored
It is not right in grammar to spell "Its not". The right one is "It's not". And this line is also over 80 characters. So I broke it into two lines as well in order to make that line not be more than 80 characters. Signed-off-by:
Hu Haowen <xianfengting221@163.com> Signed-off-by:
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Hu Haowen authored
"its not" is wrong. The words should be "it's not". Signed-off-by:
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Richard Palethorpe authored
struct can_frame contains some padding which is not explicitly zeroed in slc_bump. This uninitialized data will then be transmitted if the stack initialization hardening feature is not enabled (CONFIG_INIT_STACK_ALL). This commit just zeroes the whole struct including the padding. Signed-off-by:
Richard Palethorpe <rpalethorpe@suse.com> Fixes: a1044e36 ("can: add slcan driver for serial/USB-serial CAN adapters") Reviewed-by:
Kees Cook <keescook@chromium.org> Cc: linux-can@vger.kernel.org Cc: netdev@vger.kernel.org Cc: security@kernel.org Cc: wg@grandegger.com Cc: mkl@pengutronix.de Cc: davem@davemloft.net Acked-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
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Oleksij Rempel authored
The masks in priv->clk_25m_reg and priv->clk_25m_mask are one-bits-set for the values that comprise the fields, not zero-bits-set. This patch fixes the clock frequency configuration for ATH8030 and ATH8035 Atheros PHYs by removing the erroneous "~". To reproduce this bug, configure the PHY with the device tree binding "qca,clk-out-frequency" and remove the machine specific PHY fixups. Fixes: 2f664823 ("net: phy: at803x: add device tree binding") Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by:
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Rahul Lakkireddy authored
Perform missing MQPRIO resource cleanup in PCI shutdown path. Also, fix MQPRIO MSIX bitmap leak in resource cleanup. Fixes: b1396c2b ("cxgb4: parse and configure TC-MQPRIO offload") Signed-off-by:
Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by:
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Herat Ramani authored
cxgb4_update_mac_filt() earlier requests firmware to add a new MAC address into MPS TCAM. The MPS TCAM index returned by firmware is stored in pi->xact_addr_filt. However, the saved MPS TCAM index gets overwritten again with the return value of cxgb4_update_mac_filt(), which is wrong. When trying to update to another MAC address later, the wrong MPS TCAM index is sent to firmware, which causes firmware to return error, because it's not the same MPS TCAM index that firmware had sent earlier to driver. So, fix by removing the wrong overwrite being done after call to cxgb4_update_mac_filt(). Fixes: 3f8cfd0d ("cxgb4/cxgb4vf: Program hash region for {t4/t4vf}_change_mac()") Signed-off-by:
Herat Ramani <herat@chelsio.com> Signed-off-by:
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