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2020-08-31ipv6: add ipv6_fragment hook in ipv6_stubwenxu1-0/+3
Add ipv6_fragment to ipv6_stub to avoid calling netfilter when access ip6_fragment. Signed-off-by: wenxu <wenxu@ucloud.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-28net: add option to not create fall-back tunnels in root-ns as wellMahesh Bandewar1-2/+6
The sysctl that was added earlier by commit 79134e6ce2c ("net: do not create fallback tunnels for non-default namespaces") to create fall-back only in root-ns. This patch enhances that behavior to provide option not to create fallback tunnels in root-ns as well. Since modules that create fallback tunnels could be built-in and setting the sysctl value after booting is pointless, so added a kernel cmdline options to change this default. The default setting is preseved for backward compatibility. The kernel command line option of fb_tunnels=initns will set the sysctl value to 1 and will create fallback tunnels only in initns while kernel cmdline fb_tunnels=none will set the sysctl value to 2 and fallback tunnels are skipped in every netns. Signed-off-by: Mahesh Bandewar <maheshb@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Maciej Zenczykowski <maze@google.com> Cc: Jian Yang <jianyang@google.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-28Merge tag 'mac80211-next-for-davem-2020-08-28' of ↵David S. Miller3-40/+74
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== This time we have: * some code to support SAE (WPA3) offload in AP mode * many documentation (wording) fixes/updates * netlink policy updates, including the use of NLA_RANGE with binary attributes * regulatory improvements for adjacent frequency bands * and a few other small additions/refactorings/cleanups ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-27gtp: add notification mechanismNicolas Dichtel1-0/+2
Like all other network functions, let's notify gtp context on creation and deletion. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Tested-by: Gabriel Ganne <gabriel.ganne@6wind.com> Acked-by: Harald Welte <laforge@gnumonks.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-27net: xgene: Move shared header file into include/linuxAndrew Lunn1-0/+130
This header file is currently included into the ethernet driver via a relative path into the PHY subsystem. This is bad practice, and causes issues for the upcoming move of the MDIO driver. Move the header file into include/linux to clean this up. v2: Move header to include/linux/mdio Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-27net/phy/mdio-i2c: Move header file to include/linux/mdioAndrew Lunn1-0/+16
In preparation for moving all MDIO drivers into drivers/net/mdio, move the mdio-i2c header file into include/linux/mdio so it can be used by both the MDIO driver and the SFP code which instantiates I2C MDIO busses. v2: Add include/linux/mdio Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-27net: pcs: Move XPCS into new PCS subdirectoryAndrew Lunn1-4/+4
Create drivers/net/pcs and move the Synopsys DesignWare XPCS into the new directory. Move the header file into a subdirectory include/linux/pcs Start a naming convention of all PCS files use the prefix pcs-, and rename the XPCS files to fit. v2: Add include/linux/pcs v4: Fix include path in stmmac. Remove PCS_DEVICES to avoid new prompts Cc: Jose Abreu <Jose.Abreu@synopsys.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-27nl80211: support SAE authentication offload in AP modeChung-Hsien Hsu1-3/+11
Let drivers advertise support for AP-mode SAE authentication offload with a new NL80211_EXT_FEATURE_SAE_OFFLOAD_AP flag. Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Link: https://lore.kernel.org/r/20200817073316.33402-4-stanley.hsu@cypress.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27mac80211: rename csa counters to countdown countersJohn Crispin1-18/+17
We want to reuse the functions and structs for other counters such as BSS color change. Rename them to more generic names. Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20200811080107.3615705-2-john@phrozen.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27nl80211: rename csa counter attributes countdown countersJohn Crispin1-6/+8
We want to reuse the attributes for other counters such as BSS color change. Rename them to more generic names. Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20200811080107.3615705-1-john@phrozen.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27nl80211: add support for setting fixed HE rate/gi/ltfMiles Hu2-0/+31
This patch adds the nl80211 structs, definitions, policies and parsing code required to pass fixed HE rate, GI and LTF settings. Signed-off-by: Miles Hu <milehu@codeaurora.org> Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20200804081630.2013619-1-john@phrozen.org [fix comment] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27nl80211: fix PORT_AUTHORIZED wording to reflect behaviorJames Prestwood1-13/+7
The CMD_PORT_AUTHORIZED event was described as an event which indicated a successfully completed 4-way handshake. But the behavior was not as advertized. The only driver which uses this is brcmfmac, and this driver only sends the event after a successful 802.1X-FT roam. This prevents userspace applications from knowing if the 4-way completed on: 1. Normal 802.1X connects 2. Normal PSK connections 3. FT-PSK roams wpa_supplicant handles this incorrect behavior by just completing the connection after association, before the 4-way has completed. If the 4-way ends up failing it disconnects at that point. Since this behavior appears to be expected (wpa_s handles it this way) I have changed the wording in the API description to reflect the actual behavior. Signed-off-by: James Prestwood <prestwoj@gmail.com> Link: https://lore.kernel.org/r/20200413162053.3711-1-prestwoj@gmail.com [fix spelling of 802.1X throughout ...] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-26net: Take common prefetch code structure into a functionTariq Toukan1-0/+16
Many device drivers use the same prefetch code structure to deal with small L1 cacheline size. Take this code into a function and call it from the drivers. Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-26inet: remove inet_sk_copy_descendant()Eric Dumazet2-18/+0
This is no longer used, SCTP now uses a private helper. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24qed: align adjacent indentIgor Russkikh1-36/+33
Remove extra indent on some of adjacent declarations. Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24qed: use devlink logic to report errorsIgor Russkikh1-0/+3
Use devlink_health_report to push error indications. We implement this in qede via callback function to make it possible to reuse the same for other drivers sitting on top of qed in future. Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24qed: health reporter init deinit seqIgor Russkikh1-0/+1
Here we declare health reporter ops (empty for now) and register these in qed probe and remove callbacks. This way we get devlink attached to all kind of qed* PCI device entities: networking or storage offload entity. Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24qed/qede: make devlink survive recoveryIgor Russkikh1-0/+9
Devlink instance lifecycle was linked to qed_dev object, that caused devlink to be recreated on each recovery. Changing it by making higher level driver (qede) responsible for its life. This way devlink now survives recoveries. qede now stores devlink structure pointer as a part of its device object, devlink private data contains a linkage structure, qed_devlink. Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24io_uring: allow tcp ancillary data for __sys_recvmsg_sock()Luke Hsiao1-0/+3
For TCP tx zero-copy, the kernel notifies the process of completions by queuing completion notifications on the socket error queue. This patch allows reading these notifications via recvmsg to support TCP tx zero-copy. Ancillary data was originally disallowed due to privilege escalation via io_uring's offloading of sendmsg() onto a kernel thread with kernel credentials (https://crbug.com/project-zero/1975). So, we must ensure that the socket type is one where the ancillary data types that are delivered on recvmsg are plain data (no file descriptors or values that are translated based on the identity of the calling process). This was tested by using io_uring to call recvmsg on the MSG_ERRQUEUE with tx zero-copy enabled. Before this patch, we received -EINVALID from this specific code path. After this patch, we could read tcp tx zero-copy completion notifications from the MSG_ERRQUEUE. Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: Arjun Roy <arjunroy@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jann Horn <jannh@google.com> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Luke Hsiao <lukehsiao@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller8-22/+89
2020-08-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds2-6/+7
Pull networking fixes from David Miller: "Nothing earth shattering here, lots of small fixes (f.e. missing RCU protection, bad ref counting, missing memset(), etc.) all over the place: 1) Use get_file_rcu() in task_file iterator, from Yonghong Song. 2) There are two ways to set remote source MAC addresses in macvlan driver, but only one of which validates things properly. Fix this. From Alvin Šipraga. 3) Missing of_node_put() in gianfar probing, from Sumera Priyadarsini. 4) Preserve device wanted feature bits across multiple netlink ethtool requests, from Maxim Mikityanskiy. 5) Fix rcu_sched stall in task and task_file bpf iterators, from Yonghong Song. 6) Avoid reset after device destroy in ena driver, from Shay Agroskin. 7) Missing memset() in netlink policy export reallocation path, from Johannes Berg. 8) Fix info leak in __smc_diag_dump(), from Peilin Ye. 9) Decapsulate ECN properly for ipv6 in ipv4 tunnels, from Mark Tomlinson. 10) Fix number of data stream negotiation in SCTP, from David Laight. 11) Fix double free in connection tracker action module, from Alaa Hleihel. 12) Don't allow empty NHA_GROUP attributes, from Nikolay Aleksandrov" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits) net: nexthop: don't allow empty NHA_GROUP bpf: Fix two typos in uapi/linux/bpf.h net: dsa: b53: check for timeout tipc: call rcu_read_lock() in tipc_aead_encrypt_done() net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow net: sctp: Fix negotiation of the number of data streams. dt-bindings: net: renesas, ether: Improve schema validation gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit() hv_netvsc: Remove "unlikely" from netvsc_select_queue bpf: selftests: global_funcs: Check err_str before strstr bpf: xdp: Fix XDP mode when no mode flags specified selftests/bpf: Remove test_align leftovers tools/resolve_btfids: Fix sections with wrong alignment net/smc: Prevent kernel-infoleak in __smc_diag_dump() sfc: fix build warnings on 32-bit net: phy: mscc: Fix a couple of spelling mistakes "spcified" -> "specified" libbpf: Fix map index used in error message net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe() net: atlantic: Use readx_poll_timeout() for large timeout ...
2020-08-22l2tp: remove tunnel and session debug flags fieldTom Parkin2-3/+5
The l2tp subsystem now uses standard kernel logging APIs for informational and warning messages, and tracepoints for debug information. Now that the tunnel and session debug flags are unused, remove the field from the core structures. Various system calls (in the case of l2tp_ppp) and netlink messages handle the getting and setting of debug flags. To avoid userspace breakage don't modify the API of these calls; simply ignore set requests, and send dummy data for get requests. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller1-5/+5
Alexei Starovoitov says: ==================== pull-request: bpf 2020-08-21 The following pull-request contains BPF updates for your *net* tree. We've added 11 non-merge commits during the last 5 day(s) which contain a total of 12 files changed, 78 insertions(+), 24 deletions(-). The main changes are: 1) three fixes in BPF task iterator logic, from Yonghong. 2) fix for compressed dwarf sections in vmlinux, from Jiri. 3) fix xdp attach regression, from Andrii. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-21Merge tag 'riscv-for-linus-5.9-rc2' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - The CLINT driver has been split in two: one to handle the M-mode CLINT (memory mapped and used on NOMMU systems) and one to handle the S-mode CLINT (via SBI). - The addition of SiFive's drivers to rv32_defconfig * tag 'riscv-for-linus-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Add SiFive drivers to rv32_defconfig dt-bindings: timer: Add CLINT bindings RISC-V: Remove CLINT related code from timer and arch clocksource/drivers: Add CLINT timer driver RISC-V: Add mechanism to provide custom IPI operations
2020-08-21bpf: Fix two typos in uapi/linux/bpf.hTobias Klauser1-5/+5
Also remove trailing whitespaces in bpf_skb_get_tunnel_key example code. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200821133642.18870-1-tklauser@distanz.ch
2020-08-21Merge tag 'ext4_for_linus' of ↵Linus Torvalds2-11/+76
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "Improvements to ext4's block allocator performance for very large file systems, especially when the file system or files which are highly fragmented. There is a new mount option, prefetch_block_bitmaps which will pull in the block bitmaps and set up the in-memory buddy bitmaps when the file system is initially mounted. Beyond that, a lot of bug fixes and cleanups. In particular, a number of changes to make ext4 more robust in the face of write errors or file system corruptions" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (46 commits) ext4: limit the length of per-inode prealloc list ext4: reorganize if statement of ext4_mb_release_context() ext4: add mb_debug logging when there are lost chunks ext4: Fix comment typo "the the". jbd2: clean up checksum verification in do_one_pass() ext4: change to use fallthrough macro ext4: remove unused parameter of ext4_generic_delete_entry function mballoc: replace seq_printf with seq_puts ext4: optimize the implementation of ext4_mb_good_group() ext4: delete invalid comments near ext4_mb_check_limits() ext4: fix typos in ext4_mb_regular_allocator() comment ext4: fix checking of directory entry validity for inline directories fs: prevent BUG_ON in submit_bh_wbc() ext4: correctly restore system zone info when remount fails ext4: handle add_system_zone() failure in ext4_setup_system_zone() ext4: fold ext4_data_block_valid_rcu() into the caller ext4: check journal inode extents more carefully ext4: don't allow overlapping system zones ext4: handle error of ext4_setup_system_zone() on remount ext4: delete the invalid BUGON in ext4_mb_load_buddy_gfp() ...
2020-08-20clocksource/drivers: Add CLINT timer driverAnup Patel1-0/+1
We add a separate CLINT timer driver for Linux RISC-V M-mode (i.e. RISC-V NoMMU kernel). The CLINT MMIO device provides three things: 1. 64bit free running counter register 2. 64bit per-CPU time compare registers 3. 32bit per-CPU inter-processor interrupt registers Unlike other timer devices, CLINT provides IPI registers along with timer registers. To use CLINT IPI registers, the CLINT timer driver provides IPI related callbacks to arch/riscv. Signed-off-by: Anup Patel <anup.patel@wdc.com> Tested-by: Emil Renner Berhing <kernel@esmil.dk> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-08-20Merge tag 'dma-mapping-5.9-1' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds2-5/+3
Pull dma-mapping fixes from Christoph Hellwig: "Fix more fallout from the dma-pool changes (Nicolas Saenz Julienne, me)" * tag 'dma-mapping-5.9-1' of git://git.infradead.org/users/hch/dma-mapping: dma-pool: Only allocate from CMA when in same memory zone dma-pool: fix coherent pool allocations for IOMMU mappings
2020-08-19ptp: Remove unused macroKurt Kanzenbach1-1/+0
The offset for the control field is not needed anymore. Remove it. Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-19ptp: Add generic ptp message type functionKurt Kanzenbach1-0/+25
The message type is located at different offsets within the ptp header depending on the ptp version (v1 or v2). Therefore, drivers which also deal with ptp v1 have some code for it. Extract this into a helper function for drivers to be used. Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Richard Cochran <richardcochran@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-19ptp: Add generic ptp v2 header parsing functionKurt Kanzenbach1-0/+44
Reason: A lot of the ptp drivers - which implement hardware time stamping - need specific fields such as the sequence id from the ptp v2 header. Currently all drivers implement that themselves. Introduce a generic function to retrieve a pointer to the start of the ptp v2 header. Suggested-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Richard Cochran <richardcochran@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-19ext4: limit the length of per-inode prealloc listbrookxu1-6/+11
In the scenario of writing sparse files, the per-inode prealloc list may be very long, resulting in high overhead for ext4_mb_use_preallocated(). To circumvent this problem, we limit the maximum length of per-inode prealloc list to 512 and allow users to modify it. After patching, we observed that the sys ratio of cpu has dropped, and the system throughput has increased significantly. We created a process to write the sparse file, and the running time of the process on the fixed kernel was significantly reduced, as follows: Running time on unfixed kernel： [root@TENCENT64 ~]# time taskset 0x01 ./sparse /data1/sparce.dat real 0m2.051s user 0m0.008s sys 0m2.026s Running time on fixed kernel： [root@TENCENT64 ~]# time taskset 0x01 ./sparse /data1/sparce.dat real 0m0.471s user 0m0.004s sys 0m0.395s Signed-off-by: Chunguang Xu <brookxu@tencent.com> Link: https://lore.kernel.org/r/d7a98178-056b-6db5-6bce-4ead23f4a257@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-18ipv6: some fixes for ipv6_dev_find()Xin Long1-1/+2
This patch is to do 3 things for ipv6_dev_find(): As David A. noticed, - rt6_lookup() is not really needed. Different from __ip_dev_find(), ipv6_dev_find() doesn't have a compatibility problem, so remove it. As Hideaki suggested, - "valid" (non-tentative) check for the address is also needed. ipv6_chk_addr() calls ipv6_chk_addr_and_flags(), which will traverse the address hash list, but it's heavy to be called inside ipv6_dev_find(). This patch is to reuse the code of ipv6_chk_addr_and_flags() for ipv6_dev_find(). - dev parameter is passed into ipv6_dev_find(), as link-local addresses from user space has sin6_scope_id set and the dev lookup needs it. Fixes: 81f6cb31222d ("ipv6: add ipv6_dev_find()") Suggested-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18netlink: make NLA_BINARY validation more flexibleJohannes Berg1-27/+31
Add range validation for NLA_BINARY, allowing validation of any combination of combination minimum or maximum lengths, using the existing NLA_POLICY_RANGE()/NLA_POLICY_FULL_RANGE() macros, just like for integers where the value is checked. Also make NLA_POLICY_EXACT_LEN(), NLA_POLICY_EXACT_LEN_WARN() and NLA_POLICY_MIN_LEN() special cases of this, removing the old types NLA_EXACT_LEN and NLA_MIN_LEN. This allows us to save some code where both minimum and maximum lengths are requires, currently the policy only allows maximum (NLA_BINARY), minimum (NLA_MIN_LEN) or exact (NLA_EXACT_LEN), so a range of lengths cannot be accepted and must be checked by the code that consumes the attributes later. Also, this allows advertising the correct ranges in the policy export to userspace. Here, NLA_MIN_LEN and NLA_EXACT_LEN already were special cases of NLA_BINARY with min and min/max length respectively. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18Merge tag 'fixes-2020-08-18' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock Pull ia64 page table fix from Mike Rapoport: "Fix regression in IA-64 caused by page table allocation refactoring The refactoring and consolidation of <asm/pgalloc.h> caused regression on parisc and ia64. The fix for parisc made it into v5.9-rc1 while the fix ia64 got delayed a bit and here it is" * tag 'fixes-2020-08-18' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: arch/ia64: Restore arch-specific pgd_offset_k implementation
2020-08-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds2-19/+2
Pull networking fixes from David Miller: "Another batch of fixes: 1) Remove nft_compat counter flush optimization, it generates warnings from the refcount infrastructure. From Florian Westphal. 2) Fix BPF to search for build id more robustly, from Jiri Olsa. 3) Handle bogus getopt lengths in ebtables, from Florian Westphal. 4) Infoleak and other fixes to j1939 CAN driver, from Eric Dumazet and Oleksij Rempel. 5) Reset iter properly on mptcp sendmsg() error, from Florian Westphal. 6) Show a saner speed in bonding broadcast mode, from Jarod Wilson. 7) Various kerneldoc fixes in bonding and elsewhere, from Lee Jones. 8) Fix double unregister in bonding during namespace tear down, from Cong Wang. 9) Disable RP filter during icmp_redirect selftest, from David Ahern" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (75 commits) otx2_common: Use devm_kcalloc() in otx2_config_npa() net: qrtr: fix usage of idr in port assignment to socket selftests: disable rp_filter for icmp_redirect.sh Revert "net: xdp: pull ethernet header off packet after computing skb->protocol" phylink: <linux/phylink.h>: fix function prototype kernel-doc warning mptcp: sendmsg: reset iter on error redux net: devlink: Remove overzealous WARN_ON with snapshots tipc: not enable tipc when ipv6 works as a module tipc: fix uninit skb->data in tipc_nl_compat_dumpit() net: Fix potential wrong skb->protocol in skb_vlan_untag() net: xdp: pull ethernet header off packet after computing skb->protocol ipvlan: fix device features bonding: fix a potential double-unregister can: j1939: add rxtimer for multipacket broadcast session can: j1939: abort multipacket broadcast session when timeout occurs can: j1939: cancel rxtimer on multipacket broadcast session complete can: j1939: fix support for multipacket broadcast message net: fddi: skfp: cfm: Remove seemingly unused variable 'ID_sccs' net: fddi: skfp: cfm: Remove set but unused variable 'oldstate' net: fddi: skfp: smt: Remove seemingly unused variable 'ID_sccs' ...
2020-08-17arch/ia64: Restore arch-specific pgd_offset_k implementationJessica Clarke1-0/+2
IA-64 is special and treats pgd_offset_k() differently to pgd_offset(), using different formulae to calculate the indices into the kernel and user PGDs. The index into the user PGDs takes into account the region number, but the index into the kernel (init_mm) PGD always assumes a predefined kernel region number. Commit 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions") made IA-64 use a generic pgd_offset_k() which incorrectly used pgd_index() for kernel page tables. As a result, the index into the kernel PGD was going out of bounds and the kernel hung during early boot. Allow overrides of pgd_offset_k() and override it on IA-64 with the old implementation that will correctly index the kernel PGD. Fixes: 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions") Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
2020-08-17phylink: <linux/phylink.h>: fix function prototype kernel-doc warningRandy Dunlap1-1/+2
Fix a kernel-doc warning for the pcs_config() function prototype: ../include/linux/phylink.h:406: warning: Excess function parameter 'permit_pause_to_mac' description in 'pcs_config' Fixes: 7137e18f6f88 ("net: phylink: add struct phylink_pcs") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-17watch_queue: Limit the number of watches a user can holdDavid Howells1-0/+3
Impose a limit on the number of watches that a user can hold so that they can't use this mechanism to fill up all the available memory. This is done by putting a counter in user_struct that's incremented when a watch is allocated and decreased when it is released. If the number exceeds the RLIMIT_NOFILE limit, the watch is rejected with EAGAIN. This can be tested by the following means: (1) Create a watch queue and attach it to fd 5 in the program given - in this case, bash: keyctl watch_session /tmp/nlog /tmp/gclog 5 bash (2) In the shell, set the maximum number of files to, say, 99: ulimit -n 99 (3) Add 200 keyrings: for ((i=0; i<200; i++)); do keyctl newring a$i @s || break; done (4) Try to watch all of the keyrings: for ((i=0; i<200; i++)); do echo $i; keyctl watch_add 5 %:a$i || break; done This should fail when the number of watches belonging to the user hits 99. (5) Remove all the keyrings and all of those watches should go away: for ((i=0; i<200; i++)); do keyctl unlink %:a$i; done (6) Kill off the watch queue by exiting the shell spawned by watch_session. Fixes: c73be61cede5 ("pipe: Add general notification queue support") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller1-18/+0
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Endianness issue in IPv4 option support in nft_exthdr, from Stephen Suryaputra. 2) Removes the waitcount optimization in nft_compat, from Florian Westphal. 3) Remove ipv6 -> nf_defrag_ipv6 module dependency, from Florian Westphal. 4) Memleak in chain binding support, also from Florian. 5) Simplify nft_flowtable.sh selftest, from Fabian Frederick. 6) Optional MTU arguments for selftest nft_flowtable.sh, also from Fabian. 7) Remove noise error report when killing process in selftest nft_flowtable.sh, from Fabian Frederick. 8) Reject bogus getsockopt option length in ebtables, from Florian Westphal. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-16Merge tag 'io_uring-5.9-2020-08-15' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+1
Pull io_uring fixes from Jens Axboe: "A few differerent things in here. Seems like syzbot got some more io_uring bits wired up, and we got a handful of reports and the associated fixes are in here. General fixes too, and a lot of them marked for stable. Lastly, a bit of fallout from the async buffered reads, where we now more easily trigger short reads. Some applications don't really like that, so the io_read() code now handles short reads internally, and got a cleanup along the way so that it's now easier to read (and documented). We're now passing tests that failed before" * tag 'io_uring-5.9-2020-08-15' of git://git.kernel.dk/linux-block: io_uring: short circuit -EAGAIN for blocking read attempt io_uring: sanitize double poll handling io_uring: internally retry short reads io_uring: retain iov_iter state over io_read/io_write calls task_work: only grab task signal lock when needed io_uring: enable lookup of links holding inflight files io_uring: fail poll arm on queue proc failure io_uring: hold 'ctx' reference around task_work queue + execute fs: RWF_NOWAIT should imply IOCB_NOIO io_uring: defer file table grabbing request cleanup for locked requests io_uring: add missing REQ_F_COMP_LOCKED for nested requests io_uring: fix recursive completion locking on oveflow flush io_uring: use TWA_SIGNAL for task_work uncondtionally io_uring: account locked memory before potential error case io_uring: set ctx sq/cq entry count earlier io_uring: Fix NULL pointer dereference in loop_rw_iter() io_uring: add comments on how the async buffered read retry works io_uring: io_async_buf_func() need not test page bit
2020-08-15Merge tag 'perf-urgent-2020-08-15' of ↵Linus Torvalds1-3/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Misc fixes, an expansion of perf syscall access to CAP_PERFMON privileged tools, plus a RAPL HW-enablement for Intel SPR platforms" * tag 'perf-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/rapl: Add support for Intel SPR platform perf/x86/rapl: Support multiple RAPL unit quirks perf/x86/rapl: Fix missing psys sysfs attributes hw_breakpoint: Remove unused __register_perf_hw_breakpoint() declaration kprobes: Remove show_registers() function prototype perf/core: Take over CAP_SYS_PTRACE creds to CAP_PERFMON capability
2020-08-15Merge tag 'nfs-for-5.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds6-1/+84
Pull NFS client updates from Trond Myklebust: "Stable fixes: - pNFS: Don't return layout segments that are being used for I/O - pNFS: Don't move layout segments off the active list when being used for I/O Features: - NFS: Add support for user xattrs through the NFSv4.2 protocol - NFS: Allow applications to speed up readdir+statx() using AT_STATX_DONT_SYNC - NFSv4.0 allow nconnect for v4.0 Bugfixes and cleanups: - nfs: ensure correct writeback errors are returned on close() - nfs: nfs_file_write() should check for writeback errors - nfs: Fix getxattr kernel panic and memory overflow - NFS: Fix the pNFS/flexfiles mirrored read failover code - SUNRPC: dont update timeout value on connection reset - freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS - sunrpc: destroy rpc_inode_cachep after unregister_filesystem" * tag 'nfs-for-5.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (32 commits) NFS: Fix flexfiles read failover fs: nfs: delete repeated words in comments rpc_pipefs: convert comma to semicolon nfs: Fix getxattr kernel panic and memory overflow NFS: Don't return layout segments that are in use NFS: Don't move layouts to plh_return_segs list while in use NFS: Add layout segment info to pnfs read/write/commit tracepoints NFS: Add tracepoints for layouterror and layoutstats. NFS: Report the stateid + status in trace_nfs4_layoutreturn_on_close() SUNRPC dont update timeout value on connection reset nfs: nfs_file_write() should check for writeback errors nfs: ensure correct writeback errors are returned on close() NFSv4.2: xattr cache: get rid of cache discard work queue NFS: remove redundant initialization of variable result NFSv4.0 allow nconnect for v4.0 freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS sunrpc: destroy rpc_inode_cachep after unregister_filesystem NFSv4.2: add client side xattr caching. NFSv4.2: hook in the user extended attribute handlers NFSv4.2: add the extended attribute proc functions. ...
2020-08-15Merge tag 'acpi-5.9-rc1-2' of ↵Linus Torvalds1-5/+6
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "Add new hardware support to the ACPI driver for AMD SoCs, the x86 clk driver and the Designware i2c driver (changes from Akshu Agrawal and Pu Wen)" * tag 'acpi-5.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: clk: x86: Support RV architecture ACPI: APD: Add a fmw property is_raven clk: x86: Change name from ST to FCH ACPI: APD: Change name from ST to FCH i2c: designware: Add device HID for Hygon I2C controller
2020-08-15Merge tag 'pm-5.9-rc1-3' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull one more power management update from Rafael Wysocki: "Modify the intel_pstate driver to allow it to work in the passive mode with hardware-managed P-states (HWP) enabled" * tag 'pm-5.9-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: intel_pstate: Implement passive mode with HWP enabled
2020-08-15Merge tag 'mfd-next-5.9-1' of ↵Linus Torvalds17-131/+148
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Core Frameworks - Make better attempt at matching device with the correct OF node - Allow batch removal of hierarchical sub-devices New Drivers - Add STM32 Clocksource driver - Add support for Khadas System Control Microcontroller Driver Removal - Remove unused driver for TI's SMSC ECE1099 New Device Support - Add support for Intel Emmitsburg PCH to Intel LPSS PCI - Add support for Intel Tiger Lake PCH-H to Intel LPSS PCI - Add support for Dialog DA revision to Dialog DA9063 New Functionality - Add support for AXP803 to be probed by I2C Fix-ups - Numerous W=1 warning fixes - Device Tree changes (stm32-lptimer, gateworks-gsc, khadas,mcu, stmfx, cros-ec, j721e-system-controller) - Enabled Regmap 'fast I/O' in stm32-lptimer - Change BUG_ON to WARN_ON in arizona-core - Remove superfluous code/initialisation (madera, max14577) - Trivial formatting/spelling issues (madera-core, madera-i2c, da9055, max77693-private) - Switch to of_platform_populate() in sprd-sc27xx-spi - Expand out set/get brightness/pwm macros in lm3533-ctrlbank - Disable IRQs on suspend in motorola-cpcap - Clean-up error handling in intel_soc_pmic_mrfld - Ensure correct removal order of sub-devices in madera - Many s/HTTP/HTTPS/ link changes - Ensure name used with Regmap is unique in syscon Bug Fixes - Properly 'put' clock on unbind and error in arizona-core - Fix revision handling in da9063 - Fix 'assignment of read-only location' error in kempld-core - Avoid using the Regmap API when atomic in rn5t618 - Redefine volatile register description in rn5t618 - Use locking to protect event handler in dln2" * tag 'mfd-next-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (76 commits) mfd: syscon: Use a unique name with regmap_config mfd: Replace HTTP links with HTTPS ones mfd: dln2: Run event handler loop under spinlock mfd: madera: Improve handling of regulator unbinding mfd: mfd-core: Add mechanism for removal of a subset of children mfd: intel_soc_pmic_mrfld: Simplify the return expression of intel_scu_ipc_dev_iowrite8() mfd: max14577: Remove redundant initialization of variable current_bits mfd: rn5t618: Fix caching of battery related registers mfd: max77693-private: Drop a duplicated word mfd: da9055: pdata.h: Drop a duplicated word mfd: rn5t618: Make restart handler atomic safe mfd: kempld-core: Fix 'assignment of read-only location' error mfd: axp20x: Allow the AXP803 to be probed by I2C mfd: da9063: Add support for latest DA silicon revision mfd: da9063: Fix revision handling to correctly select reg tables dt-bindings: mfd: st,stmfx: Remove I2C unit name dt-bindings: mfd: ti,j721e-system-controller.yaml: Add J721e system controller mfd: motorola-cpcap: Disable interrupt for suspend mfd: smsc-ece1099: Remove driver mfd: core: Add OF_MFD_CELL_REG() helper ...
2020-08-15Merge branch 'akpm' (patches from Andrew)Linus Torvalds14-43/+91
Merge more updates from Andrew Morton: "Subsystems affected by this patch series: mm/hotfixes, lz4, exec, mailmap, mm/thp, autofs, sysctl, mm/kmemleak, mm/misc and lib" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (35 commits) virtio: pci: constify ioreadX() iomem argument (as in generic implementation) ntb: intel: constify ioreadX() iomem argument (as in generic implementation) rtl818x: constify ioreadX() iomem argument (as in generic implementation) iomap: constify ioreadX() iomem argument (as in generic implementation) sh: use generic strncpy() sh: clkfwk: remove r8/r16/r32 include/asm-generic/vmlinux.lds.h: align ro_after_init mm: annotate a data race in page_zonenum() mm/swap.c: annotate data races for lru_rotate_pvecs mm/rmap: annotate a data race at tlb_flush_batched mm/mempool: fix a data race in mempool_free() mm/list_lru: fix a data race in list_lru_count_one mm/memcontrol: fix a data race in scan count mm/page_counter: fix various data races at memsw mm/swapfile: fix and annotate various data races mm/filemap.c: fix a data race in filemap_fault() mm/swap_state: mark various intentional data races mm/page_io: mark various intentional data races mm/frontswap: mark various intentional data races mm/kmemleak: silence KCSAN splats in checksum ...
2020-08-14iomap: constify ioreadX() iomem argument (as in generic implementation)Krzysztof Kozlowski3-18/+18
Patch series "iomap: Constify ioreadX() iomem argument", v3. The ioread8/16/32() and others have inconsistent interface among the architectures: some taking address as const, some not. It seems there is nothing really stopping all of them to take pointer to const. This patch (of 4): The ioreadX() and ioreadX_rep() helpers have inconsistent interface. On some architectures void *__iomem address argument is a pointer to const, on some not. Implementations of ioreadX() do not modify the memory under the address so they can be converted to a "const" version for const-safety and consistency among architectures. [krzk@kernel.org: sh: clk: fix assignment from incompatible pointer type for ioreadX()] Link: http://lkml.kernel.org/r/20200723082017.24053-1-krzk@kernel.org [akpm@linux-foundation.org: fix drivers/mailbox/bcm-pdc-mailbox.c] Link: http://lkml.kernel.org/r/202007132209.Rxmv4QyS%25lkp@intel.com Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: Allen Hubbe <allenbh@gmail.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Link: http://lkml.kernel.org/r/20200709072837.5869-1-krzk@kernel.org Link: http://lkml.kernel.org/r/20200709072837.5869-2-krzk@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-14include/asm-generic/vmlinux.lds.h: align ro_after_initRomain Naour1-0/+1
Since the patch [1], building the kernel using a toolchain built with binutils 2.33.1 prevents booting a sh4 system under Qemu. Apply the patch provided by Alan Modra [2] that fix alignment of rodata. [1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ebd2263ba9a9124d93bbc0ece63d7e0fae89b40e [2] https://www.sourceware.org/ml/binutils/2019-12/msg00112.html Signed-off-by: Romain Naour <romain.naour@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Alan Modra <amodra@gmail.com> Cc: Bin Meng <bin.meng@windriver.com> Cc: Chen Zhou <chenzhou10@huawei.com> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Rich Felker <dalias@libc.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Arnd Bergmann <arnd@arndb.de> Cc: <stable@vger.kernel.org> Link: https://marc.info/?l=linux-sh&m=158429470221261 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-14mm: annotate a data race in page_zonenum()Qian Cai1-0/+1
BUG: KCSAN: data-race in page_cpupid_xchg_last / put_page write (marked) to 0xfffffc0d48ec1a00 of 8 bytes by task 91442 on cpu 3: page_cpupid_xchg_last+0x51/0x80 page_cpupid_xchg_last at mm/mmzone.c:109 (discriminator 11) wp_page_reuse+0x3e/0xc0 wp_page_reuse at mm/memory.c:2453 do_wp_page+0x472/0x7b0 do_wp_page at mm/memory.c:2798 __handle_mm_fault+0xcb0/0xd00 handle_pte_fault at mm/memory.c:4049 (inlined by) __handle_mm_fault at mm/memory.c:4163 handle_mm_fault+0xfc/0x2f0 handle_mm_fault at mm/memory.c:4200 do_page_fault+0x263/0x6f9 do_user_addr_fault at arch/x86/mm/fault.c:1465 (inlined by) do_page_fault at arch/x86/mm/fault.c:1539 page_fault+0x34/0x40 read to 0xfffffc0d48ec1a00 of 8 bytes by task 94817 on cpu 69: put_page+0x15a/0x1f0 page_zonenum at include/linux/mm.h:923 (inlined by) is_zone_device_page at include/linux/mm.h:929 (inlined by) page_is_devmap_managed at include/linux/mm.h:948 (inlined by) put_page at include/linux/mm.h:1023 wp_page_copy+0x571/0x930 wp_page_copy at mm/memory.c:2615 do_wp_page+0x107/0x7b0 __handle_mm_fault+0xcb0/0xd00 handle_mm_fault+0xfc/0x2f0 do_page_fault+0x263/0x6f9 page_fault+0x34/0x40 Reported by Kernel Concurrency Sanitizer on: CPU: 69 PID: 94817 Comm: systemd-udevd Tainted: G W O L 5.5.0-next-20200204+ #6 Hardware name: HPE ProLiant DL385 Gen10/ProLiant DL385 Gen10, BIOS A40 07/10/2019 A page never changes its zone number. The zone number happens to be stored in the same word as other bits which are modified, but the zone number bits will never be modified by any other write, so it can accept a reload of the zone bits after an intervening write and it don't need to use READ_ONCE(). Thus, annotate this data race using ASSERT_EXCLUSIVE_BITS() to also assert that there are no concurrent writes to it. Suggested-by: Marco Elver <elver@google.com> Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Link: http://lkml.kernel.org/r/1581619089-14472-1-git-send-email-cai@lca.pw Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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