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* kernel/notifier.c: remove blocking_notifier_chain_cond_register()Xiaoming Ni2019-12-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | blocking_notifier_chain_cond_register() does not consider system_booting state, which is the only difference between this function and blocking_notifier_cain_register(). This can be a bug and is a piece of duplicate code. Delete blocking_notifier_chain_cond_register() Link: http://lkml.kernel.org/r/1568861888-34045-4-git-send-email-nixiaoming@huawei.com Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Anna Schumaker <anna.schumaker@netapp.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: David S. Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@kernel.org> Cc: J. Bruce Fields <bfields@fieldses.org> Cc: Jeff Layton <jlayton@kernel.org> Cc: Nadia Derbey <Nadia.Derbey@bull.net> Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Sam Protsenko <semen.protsenko@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Vasily Averin <vvs@virtuozzo.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds2019-12-0111-46/+57
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix several scatter gather list issues in kTLS code, from Jakub Kicinski. 2) macb driver device remove has to kill the hresp_err_tasklet. From Chuhong Yuan. 3) Several memory leak and reference count bug fixes in tipc, from Tung Nguyen. 4) Fix mlx5 build error w/o ipv6, from Yue Haibing. 5) Fix jumbo frame and other regressions in r8169, from Heiner Kallweit. 6) Undo some BUG_ON()'s and replace them with WARN_ON_ONCE and proper error propagation/handling. From Paolo Abeni. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (24 commits) openvswitch: remove another BUG_ON() openvswitch: drop unneeded BUG_ON() in ovs_flow_cmd_build_info() net: phy: realtek: fix using paged operations with RTL8105e / RTL8208 r8169: fix resume on cable plug-in r8169: fix jumbo configuration for RTL8168evl net: emulex: benet: indent a Kconfig depends continuation line selftests: forwarding: fix race between packet receive and tc check net: sched: fix `tc -s class show` no bstats on class with nolock subqueues net: ethernet: ti: ale: ensure vlan/mdb deleted when no members net/mlx5e: Fix build error without IPV6 selftests: pmtu: use -oneline for ip route list cache tipc: fix duplicate SYN messages under link congestion tipc: fix wrong timeout input for tipc_wait_for_cond() tipc: fix wrong socket reference counter after tipc_sk_timeout() returns tipc: fix potential memory leak in __tipc_sendmsg() net: macb: add missed tasklet_kill selftests: bpf: correct perror strings selftests: bpf: test_sockmap: handle file creation failures gracefully net/tls: use sg_next() to walk sg entries net/tls: remove the dead inplace_crypto code ...
| * openvswitch: remove another BUG_ON()Paolo Abeni2019-12-011-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we can't build the flow del notification, we can simply delete the flow, no need to crash the kernel. Still keep a WARN_ON to preserve debuggability. Note: the BUG_ON() predates the Fixes tag, but this change can be applied only after the mentioned commit. v1 -> v2: - do not leak an skb on error Fixes: aed067783e50 ("openvswitch: Minimize ovs_flow_cmd_del critical section.") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * openvswitch: drop unneeded BUG_ON() in ovs_flow_cmd_build_info()Paolo Abeni2019-12-011-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the callers of ovs_flow_cmd_build_info() already deal with error return code correctly, so we can handle the error condition in a more gracefull way. Still dump a warning to preserve debuggability. v1 -> v2: - clarify the commit message - clean the skb and report the error (DaveM) Fixes: ccb1352e76cf ("net: Add Open vSwitch kernel components.") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: sched: fix `tc -s class show` no bstats on class with nolock subqueuesDust Li2019-11-304-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a classful qdisc's child qdisc has set the flag TCQ_F_CPUSTATS (pfifo_fast for example), the child qdisc's cpu_bstats should be passed to gnet_stats_copy_basic(), but many classful qdisc didn't do that. As a result, `tc -s class show dev DEV` always return 0 for bytes and packets in this case. Pass the child qdisc's cpu_bstats to gnet_stats_copy_basic() to fix this issue. The qstats also has this problem, but it has been fixed in 5dd431b6b9 ("net: sched: introduce and use qstats read...") and bstats still remains buggy. Fixes: 22e0f8b9322c ("net: sched: make bstats per cpu and estimator RCU safe") Signed-off-by: Dust Li <dust.li@linux.alibaba.com> Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tipc: fix duplicate SYN messages under link congestionTung Nguyen2019-11-281-7/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Scenario: 1. A client socket initiates a SYN message to a listening socket. 2. The send link is congested, the SYN message is put in the send link and a wakeup message is put in wakeup queue. 3. The congestion situation is abated, the wakeup message is pulled out of the wakeup queue. Function tipc_sk_push_backlog() is called to send out delayed messages by Nagle. However, the client socket is still in CONNECTING state. So, it sends the SYN message in the socket write queue to the listening socket again. 4. The listening socket receives the first SYN message and creates first server socket. The client socket receives ACK- and establishes a connection to the first server socket. The client socket closes its connection with the first server socket. 5. The listening socket receives the second SYN message and creates second server socket. The second server socket sends ACK- to the client socket, but it has been closed. It results in connection reset error when reading from the server socket in user space. Solution: return from function tipc_sk_push_backlog() immediately if there is pending SYN message in the socket write queue. Fixes: c0bceb97db9e ("tipc: add smart nagle feature") Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tipc: fix wrong timeout input for tipc_wait_for_cond()Tung Nguyen2019-11-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | In function __tipc_shutdown(), the timeout value passed to tipc_wait_for_cond() is not jiffies. This commit fixes it by converting that value from milliseconds to jiffies. Fixes: 365ad353c256 ("tipc: reduce risk of user starvation during link congestion") Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tipc: fix wrong socket reference counter after tipc_sk_timeout() returnsTung Nguyen2019-11-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When tipc_sk_timeout() is executed but user space is grabbing ownership, this function rearms itself and returns. However, the socket reference counter is not reduced. This causes potential unexpected behavior. This commit fixes it by calling sock_put() before tipc_sk_timeout() returns in the above-mentioned case. Fixes: afe8792fec69 ("tipc: refactor function tipc_sk_timeout()") Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tipc: fix potential memory leak in __tipc_sendmsg()Tung Nguyen2019-11-281-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When initiating a connection message to a server side, the connection message is cloned and added to the socket write queue. However, if the cloning is failed, only the socket write queue is purged. It causes memory leak because the original connection message is not freed. This commit fixes it by purging the list of connection message when it cannot be cloned. Fixes: 6787927475e5 ("tipc: buffer overflow handling in listener socket") Reported-by: Hoang Le <hoang.h.le@dektech.com.au> Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/tls: use sg_next() to walk sg entriesJakub Kicinski2019-11-282-12/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | Partially sent record cleanup path increments an SG entry directly instead of using sg_next(). This should not be a problem today, as encrypted messages should be always allocated as arrays. But given this is a cleanup path it's easy to miss was this ever to change. Use sg_next(), and simplify the code. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/tls: remove the dead inplace_crypto codeJakub Kicinski2019-11-281-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Looks like when BPF support was added by commit d3b18ad31f93 ("tls: add bpf support to sk_msg handling") and commit d829e9c4112b ("tls: convert to generic sk_msg interface") it broke/removed the support for in-place crypto as added by commit 4e6d47206c32 ("tls: Add support for inplace records encryption"). The inplace_crypto member of struct tls_rec is dead, inited to zero, and sometimes set to zero again. It used to be set to 1 when record was allocated, but the skmsg code doesn't seem to have been written with the idea of in-place crypto in mind. Since non trivial effort is required to bring the feature back and we don't really have the HW to measure the benefit just remove the left over support for now to avoid confusing readers. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: skmsg: fix TLS 1.3 crash with full sk_msgJakub Kicinski2019-11-283-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TLS 1.3 started using the entry at the end of the SG array for chaining-in the single byte content type entry. This mostly works: [ E E E E E E . . ] ^ ^ start end E < content type / [ E E E E E E C . ] ^ ^ start end (Where E denotes a populated SG entry; C denotes a chaining entry.) If the array is full, however, the end will point to the start: [ E E E E E E E E ] ^ start end And we end up overwriting the start: E < content type / [ C E E E E E E E ] ^ start end The sg array is supposed to be a circular buffer with start and end markers pointing anywhere. In case where start > end (i.e. the circular buffer has "wrapped") there is an extra entry reserved at the end to chain the two halves together. [ E E E E E E . . l ] (Where l is the reserved entry for "looping" back to front. As suggested by John, let's reserve another entry for chaining SG entries after the main circular buffer. Note that this entry has to be pointed to by the end entry so its position is not fixed. Examples of full messages: [ E E E E E E E E . l ] ^ ^ start end <---------------. [ E E . E E E E E E l ] ^ ^ end start Now the end will always point to an unused entry, so TLS 1.3 can always use it. Fixes: 130b392c6cd6 ("net: tls: Add tls 1.3 support") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/tls: free the record on encryption errorJakub Kicinski2019-11-281-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When tls_do_encryption() fails the SG lists are left with the SG_END and SG_CHAIN marks in place. One could hope that once encryption fails we will never see the record again, but that is in fact not true. Commit d3b18ad31f93 ("tls: add bpf support to sk_msg handling") added special handling to ENOMEM and ENOSPC errors which mean we may see the same record re-submitted. As suggested by John free the record, the BPF code is already doing just that. Reported-by: syzbot+df0d4ec12332661dd1f9@syzkaller.appspotmail.com Fixes: d3b18ad31f93 ("tls: add bpf support to sk_msg handling") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/tls: take into account that bpf_exec_tx_verdict() may free the recordJakub Kicinski2019-11-281-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | bpf_exec_tx_verdict() may free the record if tls_push_record() fails, or if the entire record got consumed by BPF. Re-check ctx->open_rec before touching the data. Fixes: d3b18ad31f93 ("tls: add bpf support to sk_msg handling") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge tag 'y2038-cleanups-5.5' of ↵Linus Torvalds2019-12-014-17/+23
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull y2038 cleanups from Arnd Bergmann: "y2038 syscall implementation cleanups This is a series of cleanups for the y2038 work, mostly intended for namespace cleaning: the kernel defines the traditional time_t, timeval and timespec types that often lead to y2038-unsafe code. Even though the unsafe usage is mostly gone from the kernel, having the types and associated functions around means that we can still grow new users, and that we may be missing conversions to safe types that actually matter. There are still a number of driver specific patches needed to get the last users of these types removed, those have been submitted to the respective maintainers" Link: https://lore.kernel.org/lkml/20191108210236.1296047-1-arnd@arndb.de/ * tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (26 commits) y2038: alarm: fix half-second cut-off y2038: ipc: fix x32 ABI breakage y2038: fix typo in powerpc vdso "LOPART" y2038: allow disabling time32 system calls y2038: itimer: change implementation to timespec64 y2038: move itimer reset into itimer.c y2038: use compat_{get,set}_itimer on alpha y2038: itimer: compat handling to itimer.c y2038: time: avoid timespec usage in settimeofday() y2038: timerfd: Use timespec64 internally y2038: elfcore: Use __kernel_old_timeval for process times y2038: make ns_to_compat_timeval use __kernel_old_timeval y2038: socket: use __kernel_old_timespec instead of timespec y2038: socket: remove timespec reference in timestamping y2038: syscalls: change remaining timeval to __kernel_old_timeval y2038: rusage: use __kernel_old_timeval y2038: uapi: change __kernel_time_t to __kernel_old_time_t y2038: stat: avoid 'time_t' in 'struct stat' y2038: ipc: remove __kernel_time_t reference from headers y2038: vdso: powerpc: avoid timespec references ...
| * | y2038: socket: use __kernel_old_timespec instead of timespecArnd Bergmann2019-11-153-14/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 'timespec' type definition and helpers like ktime_to_timespec() or timespec64_to_timespec() should no longer be used in the kernel so we can remove them and avoid introducing y2038 issues in new code. Change the socket code that needs to pass a timespec to user space for backward compatibility to use __kernel_old_timespec instead. This type has the same layout but with a clearer defined name. Slightly reformat tcp_recv_timestamp() for consistency after the removal of timespec64_to_timespec(). Acked-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | y2038: socket: remove timespec reference in timestampingArnd Bergmann2019-11-151-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to remove the 'struct timespec' definition and the timespec64_to_timespec() helper function, change over the in-kernel definition of 'struct scm_timestamping' to use the __kernel_old_timespec replacement and open-code the assignment. Acked-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | y2038: remove CONFIG_64BIT_TIMEArnd Bergmann2019-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | The CONFIG_64BIT_TIME option is defined on all architectures, and can be removed for simplicity now. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | Merge tag 'compat-ioctl-5.5' of ↵Linus Torvalds2019-12-015-4/+55
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull removal of most of fs/compat_ioctl.c from Arnd Bergmann: "As part of the cleanup of some remaining y2038 issues, I came to fs/compat_ioctl.c, which still has a couple of commands that need support for time64_t. In completely unrelated work, I spent time on cleaning up parts of this file in the past, moving things out into drivers instead. After Al Viro reviewed an earlier version of this series and did a lot more of that cleanup, I decided to try to completely eliminate the rest of it and move it all into drivers. This series incorporates some of Al's work and many patches of my own, but in the end stops short of actually removing the last part, which is the scsi ioctl handlers. I have patches for those as well, but they need more testing or possibly a rewrite" * tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (42 commits) scsi: sd: enable compat ioctls for sed-opal pktcdvd: add compat_ioctl handler compat_ioctl: move SG_GET_REQUEST_TABLE handling compat_ioctl: ppp: move simple commands into ppp_generic.c compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t compat_ioctl: move PPPIOCSCOMPRESS to ppp_generic compat_ioctl: unify copy-in of ppp filters tty: handle compat PPP ioctls compat_ioctl: move SIOCOUTQ out of compat_ioctl.c compat_ioctl: handle SIOCOUTQNSD af_unix: add compat_ioctl support compat_ioctl: reimplement SG_IO handling compat_ioctl: move WDIOC handling into wdt drivers fs: compat_ioctl: move FITRIM emulation into file systems gfs2: add compat_ioctl support compat_ioctl: remove unused convert_in_user macro compat_ioctl: remove last RAID handling code compat_ioctl: remove /dev/raw ioctl translation compat_ioctl: remove PCI ioctl translation compat_ioctl: remove joystick ioctl translation ...
| * | | compat_ioctl: move SIOCOUTQ out of compat_ioctl.cArnd Bergmann2019-10-231-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All users of this call are in socket or tty code, so handling it there means we can avoid the table entry in fs/compat_ioctl.c. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Eric Dumazet <edumazet@google.com> Cc: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | compat_ioctl: handle SIOCOUTQNSDArnd Bergmann2019-10-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike the normal SIOCOUTQ, SIOCOUTQNSD was never handled in compat mode. Add it to the common socket compat handler along with similar ones. Fixes: 2f4e1b397097 ("tcp: ioctl type SIOCOUTQNSD returns amount of data not sent") Cc: Eric Dumazet <edumazet@google.com> Cc: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | af_unix: add compat_ioctl supportArnd Bergmann2019-10-231-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The af_unix protocol family has a custom ioctl command (inexplicibly based on SIOCPROTOPRIVATE), but never had a compat_ioctl handler for 32-bit applications. Since all commands are compatible here, add a trivial wrapper that performs the compat_ptr() conversion for SIOCOUTQ/SIOCINQ. SIOCUNIXFILE does not use the argument, but it doesn't hurt to also use compat_ptr() here. Fixes: ba94f3088b79 ("unix: add ioctl to open a unix socket file with O_PATH") Cc: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | compat_ioctl: move hci_sock handlers into driverArnd Bergmann2019-10-231-1/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All these ioctl commands are compatible, so we can handle them with a trivial wrapper in hci_sock.c and remove the listing in fs/compat_ioctl.c. A few of the commands pass integer arguments instead of pointers, so for correctness skip the compat_ptr() conversion here. Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | compat_ioctl: move rfcomm handlers into driverArnd Bergmann2019-10-231-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All these ioctl commands are compatible, so we can handle them with a trivial wrapper in rfcomm/sock.c and remove the listing in fs/compat_ioctl.c. Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | compat_ioctl: move more drivers to compat_ptr_ioctlArnd Bergmann2019-10-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The .ioctl and .compat_ioctl file operations have the same prototype so they can both point to the same function, which works great almost all the time when all the commands are compatible. One exception is the s390 architecture, where a compat pointer is only 31 bit wide, and converting it into a 64-bit pointer requires calling compat_ptr(). Most drivers here will never run in s390, but since we now have a generic helper for it, it's easy enough to use it consistently. I double-checked all these drivers to ensure that all ioctl arguments are used as pointers or are ignored, but are not interpreted as integer values. Acked-by: Jason Gunthorpe <jgg@mellanox.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: David Sterba <dsterba@suse.com> Acked-by: Darren Hart (VMware) <dvhart@infradead.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | | Merge tag 'hyperv-next-signed' of ↵Linus Torvalds2019-11-301-0/+20
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull Hyper-V updates from Sasha Levin: - support for new VMBus protocols (Andrea Parri) - hibernation support (Dexuan Cui) - latency testing framework (Branden Bonaby) - decoupling Hyper-V page size from guest page size (Himadri Pandya) * tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits) Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic drivers/hv: Replace binary semaphore with mutex drivers: iommu: hyperv: Make HYPERV_IOMMU only available on x86 HID: hyperv: Add the support of hibernation hv_balloon: Add the support of hibernation x86/hyperv: Implement hv_is_hibernation_supported() Drivers: hv: balloon: Remove dependencies on guest page size Drivers: hv: vmbus: Remove dependencies on guest page size x86: hv: Add function to allocate zeroed page for Hyper-V Drivers: hv: util: Specify ring buffer size using Hyper-V page size Drivers: hv: Specify receive buffer size using Hyper-V page size tools: hv: add vmbus testing tool drivers: hv: vmbus: Introduce latency testing video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host hv_netvsc: Add the support of hibernation hv_sock: Add the support of hibernation video: hyperv_fb: Add the support of hibernation scsi: storvsc: Add the support of hibernation Drivers: hv: vmbus: Add module parameter to cap the VMBus version ...
| * | | hv_sock: Add the support of hibernationDexuan Cui2019-11-211-0/+20
| | |/ | |/| | | | | | | | | | | | | | | | | | | Add the necessary dummy callbacks for hibernation. Signed-off-by: Dexuan Cui <decui@microsoft.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
* | | Merge tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-blockLinus Torvalds2019-11-281-60/+154
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull more io_uring updates from Jens Axboe: "As mentioned in the first pull request, there was a later batch as well. This contains fixes to the stuff that already went in, cleanups, and a few later additions. In particular, this contains: - Cleanups/fixes/unification of the submission and completion path (Pavel,me) - Linked timeouts improvements (Pavel,me) - Error path fixes (me) - Fix lookup window where cancellations wouldn't work (me) - Improve DRAIN support (Pavel) - Fix backlog flushing -EBUSY on submit (me) - Add support for connect(2) (me) - Fix for non-iter based fixed IO (Pavel) - creds inheritance for async workers (me) - Disable cmsg/ancillary data for sendmsg/recvmsg (me) - Shrink io_kiocb to 3 cachelines (me) - NUMA fix for io-wq (Jann)" * tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-block: (42 commits) io_uring: make poll->wait dynamically allocated io-wq: shrink io_wq_work a bit io-wq: fix handling of NUMA node IDs io_uring: use kzalloc instead of kcalloc for single-element allocations io_uring: cleanup io_import_fixed() io_uring: inline struct sqe_submit io_uring: store timeout's sqe->off in proper place net: disallow ancillary data for __sys_{send,recv}msg_file() net: separate out the msghdr copy from ___sys_{send,recv}msg() io_uring: remove superfluous check for sqe->off in io_accept() io_uring: async workers should inherit the user creds io-wq: have io_wq_create() take a 'data' argument io_uring: fix dead-hung for non-iter fixed rw io_uring: add support for IORING_OP_CONNECT net: add __sys_connect_file() helper io_uring: only return -EBUSY for submit on non-flushed backlog io_uring: only !null ptr to io_issue_sqe() io_uring: simplify io_req_link_next() io_uring: pass only !null to io_req_find_next() io_uring: remove io_free_req_find_next() ...
| * | | net: disallow ancillary data for __sys_{send,recv}msg_file()Jens Axboe2019-11-261-6/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only io_uring uses (and added) these, and we want to disallow the use of sendmsg/recvmsg for anything but regular data transfers. Use the newly added prep helper to split the msghdr copy out from the core function, to check for msg_control and msg_controllen settings. If either is set, we return -EINVAL. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <axboe@kernel.dk>
| * | | net: separate out the msghdr copy from ___sys_{send,recv}msg()Jens Axboe2019-11-261-46/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is in preparation for enabling the io_uring helpers for sendmsg and recvmsg to first copy the header for validation before continuing with the operation. There should be no functional changes in this patch. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <axboe@kernel.dk>
| * | | net: add __sys_connect_file() helperJens Axboe2019-11-251-8/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is identical to __sys_connect(), except it takes a struct file instead of an fd, and it also allows passing in extra file->f_flags flags. The latter is done to support masking in O_NONBLOCK without manipulating the original file flags. No functional changes in this patch. Cc: netdev@vger.kernel.org Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds2019-11-277-15/+19
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: "This is mostly to fix the iwlwifi regression: 1) Flush GRO state properly in iwlwifi driver, from Alexander Lobakin. 2) Validate TIPC link name with properly length macro, from John Rutherford. 3) Fix completion init and device query timeouts in ibmvnic, from Thomas Falcon. 4) Fix SKB size calculation for netlink messages in psample, from Nikolay Aleksandrov. 5) Similar kind of fix for OVS flow dumps, from Paolo Abeni. 6) Handle queue allocation failure unwind properly in gve driver, we could try to release pages we didn't allocate. From Jeroen de Borst. 7) Serialize TX queue SKB list accesses properly in mscc ocelot driver. From Yangbo Lu" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: net: usb: aqc111: Use the correct style for SPDX License Identifier net: phy: Use the correct style for SPDX License Identifier net: wireless: intel: iwlwifi: fix GRO_NORMAL packet stalling net: mscc: ocelot: use skb queue instead of skbs list net: mscc: ocelot: avoid incorrect consuming in skbs list gve: Fix the queue page list allocated pages count net: inet_is_local_reserved_port() port arg should be unsigned short openvswitch: fix flow command message size net: phy: dp83869: Fix return paths to return proper values net: psample: fix skb_over_panic net: usbnet: Fix -Wcast-function-type net: hso: Fix -Wcast-function-type net: port < inet_prot_sock(net) --> inet_port_requires_bind_service(net, port) ibmvnic: Serialize device queries ibmvnic: Bound waits for device queries ibmvnic: Terminate waiting device threads after loss of service ibmvnic: Fix completion structure initialization net-sctp: replace some sock_net(sk) with just 'net' net: Fix a documentation bug wrt. ip_unprivileged_port_start tipc: fix link name length check
| * | | | openvswitch: fix flow command message sizePaolo Abeni2019-11-261-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When user-space sets the OVS_UFID_F_OMIT_* flags, and the relevant flow has no UFID, we can exceed the computed size, as ovs_nla_put_identifier() will always dump an OVS_FLOW_ATTR_KEY attribute. Take the above in account when computing the flow command message size. Fixes: 74ed7ab9264c ("openvswitch: Add support for unique flow IDs.") Reported-by: Qi Jun Ding <qding@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | net: psample: fix skb_over_panicNikolay Aleksandrov2019-11-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to calculate the skb size correctly otherwise we risk triggering skb_over_panic[1]. The issue is that data_len is added to the skb in a nl attribute, but we don't account for its header size (nlattr 4 bytes) and alignment. We account for it when calculating the total size in the > PSAMPLE_MAX_PACKET_SIZE comparison correctly, but not when allocating after that. The fix is simple - use nla_total_size() for data_len when allocating. To reproduce: $ tc qdisc add dev eth1 clsact $ tc filter add dev eth1 egress matchall action sample rate 1 group 1 trunc 129 $ mausezahn eth1 -b bcast -a rand -c 1 -p 129 < skb_over_panic BUG(), tail is 4 bytes past skb->end > [1] Trace: [ 50.459526][ T3480] skbuff: skb_over_panic: text:(____ptrval____) len:196 put:136 head:(____ptrval____) data:(____ptrval____) tail:0xc4 end:0xc0 dev:<NULL> [ 50.474339][ T3480] ------------[ cut here ]------------ [ 50.481132][ T3480] kernel BUG at net/core/skbuff.c:108! [ 50.486059][ T3480] invalid opcode: 0000 [#1] PREEMPT SMP [ 50.489463][ T3480] CPU: 3 PID: 3480 Comm: mausezahn Not tainted 5.4.0-rc7 #108 [ 50.492844][ T3480] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-2.fc30 04/01/2014 [ 50.496551][ T3480] RIP: 0010:skb_panic+0x79/0x7b [ 50.498261][ T3480] Code: bc 00 00 00 41 57 4c 89 e6 48 c7 c7 90 29 9a 83 4c 8b 8b c0 00 00 00 50 8b 83 b8 00 00 00 50 ff b3 c8 00 00 00 e8 ae ef c0 fe <0f> 0b e8 2f df c8 fe 48 8b 55 08 44 89 f6 4c 89 e7 48 c7 c1 a0 22 [ 50.504111][ T3480] RSP: 0018:ffffc90000447a10 EFLAGS: 00010282 [ 50.505835][ T3480] RAX: 0000000000000087 RBX: ffff888039317d00 RCX: 0000000000000000 [ 50.507900][ T3480] RDX: 0000000000000000 RSI: ffffffff812716e1 RDI: 00000000ffffffff [ 50.509820][ T3480] RBP: ffffc90000447a60 R08: 0000000000000001 R09: 0000000000000000 [ 50.511735][ T3480] R10: ffffffff81d4f940 R11: 0000000000000000 R12: ffffffff834a22b0 [ 50.513494][ T3480] R13: ffffffff82c10433 R14: 0000000000000088 R15: ffffffff838a8084 [ 50.515222][ T3480] FS: 00007f3536462700(0000) GS:ffff88803eac0000(0000) knlGS:0000000000000000 [ 50.517135][ T3480] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.518583][ T3480] CR2: 0000000000442008 CR3: 000000003b222000 CR4: 00000000000006e0 [ 50.520723][ T3480] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.522709][ T3480] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.524450][ T3480] Call Trace: [ 50.525214][ T3480] skb_put.cold+0x1b/0x1b [ 50.526171][ T3480] psample_sample_packet+0x1d3/0x340 [ 50.527307][ T3480] tcf_sample_act+0x178/0x250 [ 50.528339][ T3480] tcf_action_exec+0xb1/0x190 [ 50.529354][ T3480] mall_classify+0x67/0x90 [ 50.530332][ T3480] tcf_classify+0x72/0x160 [ 50.531286][ T3480] __dev_queue_xmit+0x3db/0xd50 [ 50.532327][ T3480] dev_queue_xmit+0x18/0x20 [ 50.533299][ T3480] packet_sendmsg+0xee7/0x2090 [ 50.534331][ T3480] sock_sendmsg+0x54/0x70 [ 50.535271][ T3480] __sys_sendto+0x148/0x1f0 [ 50.536252][ T3480] ? tomoyo_file_ioctl+0x23/0x30 [ 50.537334][ T3480] ? ksys_ioctl+0x5e/0xb0 [ 50.540068][ T3480] __x64_sys_sendto+0x2a/0x30 [ 50.542810][ T3480] do_syscall_64+0x73/0x1f0 [ 50.545383][ T3480] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.548477][ T3480] RIP: 0033:0x7f35357d6fb3 [ 50.551020][ T3480] Code: 48 8b 0d 18 90 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d f9 d3 20 00 00 75 13 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 eb f6 ff ff 48 89 04 24 [ 50.558547][ T3480] RSP: 002b:00007ffe0c7212c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 50.561870][ T3480] RAX: ffffffffffffffda RBX: 0000000001dac010 RCX: 00007f35357d6fb3 [ 50.565142][ T3480] RDX: 0000000000000082 RSI: 0000000001dac2a2 RDI: 0000000000000003 [ 50.568469][ T3480] RBP: 00007ffe0c7212f0 R08: 00007ffe0c7212d0 R09: 0000000000000014 [ 50.571731][ T3480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000082 [ 50.574961][ T3480] R13: 0000000001dac2a2 R14: 0000000000000001 R15: 0000000000000003 [ 50.578170][ T3480] Modules linked in: sch_ingress virtio_net [ 50.580976][ T3480] ---[ end trace 61a515626a595af6 ]--- CC: Yotam Gigi <yotamg@mellanox.com> CC: Jiri Pirko <jiri@mellanox.com> CC: Jamal Hadi Salim <jhs@mojatatu.com> CC: Simon Horman <simon.horman@netronome.com> CC: Roopa Prabhu <roopa@cumulusnetworks.com> Fixes: 6ae0a6286171 ("net: Introduce psample, a new genetlink channel for packet sampling") Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | net: port < inet_prot_sock(net) --> inet_port_requires_bind_service(net, port)Maciej Żenczykowski2019-11-264-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Note that the sysctl write accessor functions guarantee that: net->ipv4.sysctl_ip_prot_sock <= net->ipv4.ip_local_ports.range[0] invariant is maintained, and as such the max() in selinux hooks is actually spurious. ie. even though if (snum < max(inet_prot_sock(sock_net(sk)), low) || snum > high) { per logic is the same as if ((snum < inet_prot_sock(sock_net(sk)) && snum < low) || snum > high) { it is actually functionally equivalent to: if (snum < low || snum > high) { which is equivalent to: if (snum < inet_prot_sock(sock_net(sk)) || snum < low || snum > high) { even though the first clause is spurious. But we want to hold on to it in case we ever want to change what what inet_port_requires_bind_service() means (for example by changing it from a, by default, [0..1024) range to some sort of set). Test: builds, git 'grep inet_prot_sock' finds no other references Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | net-sctp: replace some sock_net(sk) with just 'net'Maciej Żenczykowski2019-11-261-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It already existed in part of the function, but move it to a higher level and use it consistently throughout. Safe since sk is never written to. Signed-off-by: Maciej Żenczykowski <maze@google.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | tipc: fix link name length checkJohn Rutherford2019-11-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 4f07b80c9733 ("tipc: check msg->req data len in tipc_nl_compat_bearer_disable") the same patch code was copied into routines: tipc_nl_compat_bearer_disable(), tipc_nl_compat_link_stat_dump() and tipc_nl_compat_link_reset_stats(). The two link routine occurrences should have been modified to check the maximum link name length and not bearer name length. Fixes: 4f07b80c9733 ("tipc: check msg->reg data len in tipc_nl_compat_bearer_disable") Signed-off-by: John Rutherford <john.rutherford@dektech.com.au> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge tag 'driver-core-5.5-rc1' of ↵Linus Torvalds2019-11-271-14/+3
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the "big" set of driver core patches for 5.5-rc1 There's a few minor cleanups and fixes in here, but the majority of the patches in here fall into two buckets: - debugfs api cleanups and fixes - driver core device link support for boot dependancy issues The debugfs api cleanups are working to slowly refactor the debugfs apis so that it is even harder to use incorrectly. That work has been happening for the past few kernel releases and will continue over time, it's a long-term project/goal The driver core device link support missed 5.4 by just a bit, so it's been sitting and baking for many months now. It's from Saravana Kannan to help resolve the problems that DT-based systems have at boot time with dependancy graphs and kernel modules. Turns out that no one has actually tried to build a generic arm64 kernel with loads of modules and have it "just work" for a variety of platforms (like a distro kernel). The big problem turned out to be a lack of dependency information between different areas of DT entries, and the work here resolves that problem and now allows devices to boot properly, and quicker than a monolith kernel. All of these patches have been in linux-next for a long time with no reported issues" * tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (68 commits) tracing: Remove unnecessary DEBUG_FS dependency of: property: Add device link support for interrupt-parent, dmas and -gpio(s) debugfs: Fix !DEBUG_FS debugfs_create_automount of: property: Add device link support for "iommu-map" of: property: Fix the semantics of of_is_ancestor_of() i2c: of: Populate fwnode in of_i2c_get_board_info() drivers: base: Fix Kconfig indentation firmware_loader: Fix labels with comma for builtin firmware driver core: Allow device link operations inside sync_state() driver core: platform: Declare ret variable only once cpu-topology: declare parse_acpi_topology in <linux/arch_topology.h> crypto: hisilicon: no need to check return value of debugfs_create functions driver core: platform: use the correct callback type for bus_find_device firmware_class: make firmware caching configurable driver core: Clarify documentation for fwnode_operations.add_links() mailbox: tegra: Fix superfluous IRQ error message net: caif: Fix debugfs on 64-bit platforms mac80211: Use debugfs_create_xul() helper media: c8sectpfe: no need to check return value of debugfs_create functions of: property: Add device link support for iommus, mboxes and io-channels ...
| * | | | | mac80211: Use debugfs_create_xul() helperGeert Uytterhoeven2019-11-091-14/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new debugfs_create_xul() helper instead of open-coding the same operation. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Johannes Berg <johannes@sipsolutions.net> Link: https://lore.kernel.org/r/20191025094130.26033-3-geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | Merge tag 'char-misc-5.5-rc1' of ↵Linus Torvalds2019-11-271-2/+7
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char/misc and other driver patches for 5.5-rc1 Loads of different things in here, this feels like the catch-all of driver subsystems these days. Full details are in the shortlog, but nothing major overall, just lots of driver updates and additions. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (198 commits) char: Fix Kconfig indentation, continued habanalabs: add more protection of device during reset habanalabs: flush EQ workers in hard reset habanalabs: make the reset code more consistent habanalabs: expose reset counters via existing INFO IOCTL habanalabs: make code more concise habanalabs: use defines for F/W files habanalabs: remove prints on successful device initialization habanalabs: remove unnecessary checks habanalabs: invalidate MMU cache only once habanalabs: skip VA block list update in reset flow habanalabs: optimize MMU unmap habanalabs: prevent read/write from/to the device during hard reset habanalabs: split MMU properties to PCI/DRAM habanalabs: re-factor MMU masks and documentation habanalabs: type specific MMU cache invalidation habanalabs: re-factor memory module code habanalabs: export uapi defines to user-space habanalabs: don't print error when queues are full habanalabs: increase max jobs number to 512 ...
| * \ \ \ \ \ Merge 5.4-rc7 into char-misc-nextGreg Kroah-Hartman2019-11-1197-595/+1080
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need the char/misc driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | | rfkill: allocate static minorMarcel Holtmann2019-11-051-2/+7
| | |/ / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | udev has a feature of creating /dev/<node> device-nodes if it finds a devnode:<node> modalias. This allows for auto-loading of modules that provide the node. This requires to use a statically allocated minor number for misc character devices. However, rfkill uses dynamic minor numbers and prevents auto-loading of the module. So allocate the next static misc minor number and use it for rfkill. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Link: https://lore.kernel.org/r/20191024174042.19851-1-marcel@holtmann.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds2019-11-271-0/+14
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull rdma updates from Jason Gunthorpe: "Again another fairly quiet cycle with few notable core code changes and the usual variety of driver bug fixes and small improvements. - Various driver updates and bug fixes for siw, bnxt_re, hns, qedr, iw_cxgb4, vmw_pvrdma, mlx5 - Improvements in SRPT from working with iWarp - SRIOV VF support for bnxt_re - Skeleton kernel-doc files for drivers/infiniband - User visible counters for events related to ODP - Common code for tracking of mmap lifetimes so that drivers can link HW object liftime to a VMA - ODP bug fixes and rework - RDMA READ support for efa - Removal of the very old cxgb3 driver" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (168 commits) RDMA/hns: Delete unnecessary callback functions for cq RDMA/hns: Rename the functions used inside creating cq RDMA/hns: Redefine the member of hns_roce_cq struct RDMA/hns: Redefine interfaces used in creating cq RDMA/efa: Expose RDMA read related attributes RDMA/efa: Support remote read access in MR registration RDMA/efa: Store network attributes in device attributes IB/hfi1: remove redundant assignment to variable ret RDMA/bnxt_re: Fix missing le16_to_cpu RDMA/bnxt_re: Fix stat push into dma buffer on gen p5 devices RDMA/bnxt_re: Fix chip number validation Broadcom's Gen P5 series RDMA/bnxt_re: Fix Kconfig indentation IB/mlx5: Implement callbacks for getting VFs GUID attributes IB/ipoib: Add ndo operation for getting VFs GUID attributes IB/core: Add interfaces to get VF node and port GUIDs net/core: Add support for getting VF GUIDs RDMA/qedr: Fix null-pointer dereference when calling rdma_user_mmap_get_offset RDMA/cm: Use refcount_t type for refcount variable IB/mlx5: Support extended number of strides for Striding RQ IB/mlx4: Update HW GID table while adding vlan GID ...
| * \ \ \ \ \ \ Merge branch 'ib-guids' into rdma.git for-nextJason Gunthorpe2019-11-252-0/+19
| |\ \ \ \ \ \ \ | | |/ / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Danit Goldberg says: ==================== This series extends RTNETLINK to provide IB port and node GUIDs, which were configured for Infiniband VFs. The functionality to set VF GUIDs already existed for a long time, and here we are adding the missing "get" so that netlink will be symmetric and various cloud orchestration tools will be able to manage such VFs more naturally. The iproute2 was extended too to present those GUIDs. - ip link show <device> For example: - ip link set ib4 vf 0 node_guid 22:44:33:00:33:11:00:33 - ip link set ib4 vf 0 port_guid 10:21:33:12:00:11:22:10 - ip link show ib4 ib4: <BROADCAST,MULTICAST> mtu 4092 qdisc noop state DOWN mode DEFAULT group default qlen 256 link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff vf 0 link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff, spoof checking off, NODE_GUID 22:44:33:00:33:11:00:33, PORT_GUID 10:21:33:12:00:11:22:10, link-state disable, trust off, query_rss off ==================== Based on the mlx5-next branch from git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux for dependencies * branch 'ib-guids': (35 commits) IB/mlx5: Implement callbacks for getting VFs GUID attributes IB/ipoib: Add ndo operation for getting VFs GUID attributes IB/core: Add interfaces to get VF node and port GUIDs net/core: Add support for getting VF GUIDs net/mlx5: Add new chain for netfilter flow table offload net/mlx5: Refactor creating fast path prio chains net/mlx5: Accumulate levels for chains prio namespaces net/mlx5: Define fdb tc levels per prio net/mlx5: Rename FDB_* tc related defines to FDB_TC_* defines net/mlx5: Simplify fdb chain and prio eswitch defines IB/mlx5: Load profile according to RoCE enablement state IB/mlx5: Rename profile and init methods net/mlx5: Handle "enable_roce" devlink param net/mlx5: Document flow_steering_mode devlink param devlink: Add new "enable_roce" generic device param net/mlx5: fix spelling mistake "metdata" -> "metadata" net/mlx5: fix kvfree of uninitialized pointer spec IB/mlx5: Introduce and use mlx5_core_is_vf() net/mlx5: E-switch, Enable metadata on own vport net/mlx5: Refactor ingress acl configuration ... Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| | * | | | | | net/core: Add support for getting VF GUIDsDanit Goldberg2019-11-221-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a new ndo: ndo_get_vf_guid, to get from the net device the port and node GUID. New applications can choose to use this interface to show GUIDs with iproute2 with commands such as: - ip link show ib4 ib4: <BROADCAST,MULTICAST> mtu 4092 qdisc noop state DOWN mode DEFAULT group default qlen 256 link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff vf 0 link/infiniband 00:00:0a:2d:fe:80:00:00:00:00:00:00:ec:0d:9a:03:00:44:36:8d brd 00:ff:ff:ff:ff:12:40:1b:ff:ff:00:00:00:00:00:00:ff:ff:ff:ff, spoof checking off, NODE_GUID 22:44:33:00:33:11:00:33, PORT_GUID 10:21:33:12:00:11:22:10, link-state disable, trust off, query_rss off Signed-off-by: Danit Goldberg <danitg@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
* | | | | | | | Merge branch 'locking-core-for-linus' of ↵Linus Torvalds2019-11-261-1/+1
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "The main changes in this cycle were: - A comprehensive rewrite of the robust/PI futex code's exit handling to fix various exit races. (Thomas Gleixner et al) - Rework the generic REFCOUNT_FULL implementation using atomic_fetch_* operations so that the performance impact of the cmpxchg() loops is mitigated for common refcount operations. With these performance improvements the generic implementation of refcount_t should be good enough for everybody - and this got confirmed by performance testing, so remove ARCH_HAS_REFCOUNT and REFCOUNT_FULL entirely, leaving the generic implementation enabled unconditionally. (Will Deacon) - Other misc changes, fixes, cleanups" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) lkdtm: Remove references to CONFIG_REFCOUNT_FULL locking/refcount: Remove unused 'refcount_error_report()' function locking/refcount: Consolidate implementations of refcount_t locking/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions locking/refcount: Move saturation warnings out of line locking/refcount: Improve performance of generic REFCOUNT_FULL code locking/refcount: Move the bulk of the REFCOUNT_FULL implementation into the <linux/refcount.h> header locking/refcount: Remove unused refcount_*_checked() variants locking/refcount: Ensure integer operands are treated as signed locking/refcount: Define constants for saturation and max refcount values futex: Prevent exit livelock futex: Provide distinct return value when owner is exiting futex: Add mutex around futex exit futex: Provide state handling for exec() as well futex: Sanitize exit state handling futex: Mark the begin of futex exit explicitly futex: Set task::futex_state to DEAD right after handling futex exit futex: Split futex_mm_release() for exit/exec exit/exec: Seperate mm_release() futex: Replace PF_EXITPIDONE with a state ...
| * | | | | | | | locking/lockdep: Remove unused @nested argument from lock_release()Qian Cai2019-10-091-1/+1
| | |_|_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the following commit: b4adfe8e05f1 ("locking/lockdep: Remove unused argument in __lock_release") @nested is no longer used in lock_release(), so remove it from all lock_release() calls and friends. Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will@kernel.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: airlied@linux.ie Cc: akpm@linux-foundation.org Cc: alexander.levin@microsoft.com Cc: daniel@iogearbox.net Cc: davem@davemloft.net Cc: dri-devel@lists.freedesktop.org Cc: duyuyang@gmail.com Cc: gregkh@linuxfoundation.org Cc: hannes@cmpxchg.org Cc: intel-gfx@lists.freedesktop.org Cc: jack@suse.com Cc: jlbec@evilplan.or Cc: joonas.lahtinen@linux.intel.com Cc: joseph.qi@linux.alibaba.com Cc: jslaby@suse.com Cc: juri.lelli@redhat.com Cc: maarten.lankhorst@linux.intel.com Cc: mark@fasheh.com Cc: mhocko@kernel.org Cc: mripard@kernel.org Cc: ocfs2-devel@oss.oracle.com Cc: rodrigo.vivi@intel.com Cc: sean@poorly.run Cc: st@kernel.org Cc: tj@kernel.org Cc: tytso@mit.edu Cc: vdavydov.dev@gmail.com Cc: vincent.guittot@linaro.org Cc: viro@zeniv.linux.org.uk Link: https://lkml.kernel.org/r/1568909380-32199-1-git-send-email-cai@lca.pw Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | | | | | | | Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds2019-11-2615-26/+28
|\ \ \ \ \ \ \ \ | |_|_|_|_|/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The main changes in this cycle were: - Dynamic tick (nohz) updates, perhaps most notably changes to force the tick on when needed due to lengthy in-kernel execution on CPUs on which RCU is waiting. - Linux-kernel memory consistency model updates. - Replace rcu_swap_protected() with rcu_prepace_pointer(). - Torture-test updates. - Documentation updates. - Miscellaneous fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits) security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer() net/sched: Replace rcu_swap_protected() with rcu_replace_pointer() net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer() net/core: Replace rcu_swap_protected() with rcu_replace_pointer() bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer() fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer() drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer() drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer() x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer() rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer() rcu: Suppress levelspread uninitialized messages rcu: Fix uninitialized variable in nocb_gp_wait() rcu: Update descriptions for rcu_future_grace_period tracepoint rcu: Update descriptions for rcu_nocb_wake tracepoint rcu: Remove obsolete descriptions for rcu_barrier tracepoint rcu: Ensure that ->rcu_urgent_qs is set before resched IPI workqueue: Convert for_each_wq to use built-in list check rcu: Several rcu_segcblist functions can be static rcu: Remove unused function hlist_bl_del_init_rcu() Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch() ...
| * | | | | | | Merge branch 'for-mingo' of ↵Ingo Molnar2019-10-3115-26/+28
| |\ \ \ \ \ \ \ | | |_|/ / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU and LKMM changes from Paul E. McKenney: - Documentation updates. - Miscellaneous fixes. - Dynamic tick (nohz) updates, perhaps most notably changes to force the tick on when needed due to lengthy in-kernel execution on CPUs on which RCU is waiting. - Replace rcu_swap_protected() with rcu_prepace_pointer(). - Torture-test updates. - Linux-kernel memory consistency model updates. Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * | | | | | net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()Paul E. McKenney2019-10-3012-20/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit replaces the use of rcu_swap_protected() with the more intuitively appealing rcu_replace_pointer() as a step towards removing rcu_swap_protected(). Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/ Reported-by: Linus Torvalds <torvalds@linux-foundation.org> [ paulmck: From rcu_replace() to rcu_replace_pointer() per Ingo Molnar. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Jiri Pirko <jiri@resnulli.us> Cc: "David S. Miller" <davem@davemloft.net> Cc: <netdev@vger.kernel.org> Cc: <linux-kernel@vger.kernel.org>
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