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2022-07-30MIPS: msi-octeon: eliminate kernel-doc warningsRandy Dunlap
Rearrange kernel-doc notation for 2 functions to eliminate kernel-doc warnings. Use Return: notation for the function return value description. Add function short descriptions for both functions. Correct 2 typos. Fixes these kernel-doc warnings: msi-octeon.c:49: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Called when a driver request MSI interrupts instead of the msi-octeon.c:49: warning: missing initial short description on line: * Called when a driver request MSI interrupts instead of the msi-octeon.c:62: warning: No description found for return value of 'arch_setup_msi_irq' msi-octeon.c:189: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Called when a device no longer needs its MSI interrupts. All msi-octeon.c:189: warning: missing initial short description on line: * Called when a device no longer needs its MSI interrupts. All Fixes: e8635b484f64 ("MIPS: Add Cavium OCTEON PCI support.") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Aditya Srivastava <yashsri421@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2022-07-30MIPS: Fix comment typoJason Wang
Fix the typo `s/that that/than that/' in line 72. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2022-07-30memblock test: Modify the obsolete description in READMEShaoqin Huang
The VERBOSE option in Makefile has been moved, but there still have the description left in README. For now, we use `-v` options when running memblock test to print information, so using the new to replace the obsolete items. Signed-off-by: Shaoqin Huang <shaoqin.huang@intel.com> Acked-by: Rebecca Mckeever <remckee0@gmail.com> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Link: https://lore.kernel.org/r/20220729161125.190845-1-shaoqin.huang@intel.com
2022-07-30ALSA: hda/realtek: Add quirk for Lenovo Yoga9 14IAP7Philipp Jungkamp
The Lenovo Yoga 9 14IAP7 is set up similarly to the Thinkpad X1 7th and 8th Gen. It also has the speakers attached to NID 0x14 and the bass speakers to NID 0x17, but here the codec misreports the NID 0x17 as unconnected. The pincfg and hda verbs connect and activate the bass speaker amplifiers, but the generic driver will connect them to NID 0x06 which has no volume control. Set connection list/preferred connections is required to gain volume control. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208555 Signed-off-by: Philipp Jungkamp <p.jungkamp@gmx.net> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220729162103.6062-1-p.jungkamp@gmx.net Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-07-29Merge tag 'mlx5-updates-2022-07-28' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5-updates-2022-07-28 Misc updates to mlx5 driver: 1) Gal corrects to use skb_tcp_all_headers on encapsulated skbs. 2) Roi Adds the support for offloading standalone police actions. 3) lama, did some refactoring to minimize code coupling with mlx5e_priv "god object" in some of the follows, and converts some of the objects to pointers to preserve on memory when these objects aren't needed. This is part one of two parts series. * tag 'mlx5-updates-2022-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux: net/mlx5e: Move mlx5e_init_l2_addr to en_main net/mlx5e: Split en_fs ndo's and move to en_main net/mlx5e: Separate mlx5e_set_rx_mode_work and move caller to en_main net/mlx5e: Add mdev to flow_steering struct net/mlx5e: Report flow steering errors with mdev err report API net/mlx5e: Convert mlx5e_flow_steering member of mlx5e_priv to pointer net/mlx5e: Allocate VLAN and TC for featured profiles only net/mlx5e: Make mlx5e_tc_table private net/mlx5e: Convert mlx5e_tc_table member of mlx5e_flow_steering to pointer net/mlx5e: TC, Support tc action api for police net/mlx5e: TC, Separate get/update/replace meter functions net/mlx5e: Add red and green counters for metering net/mlx5e: TC, Allocate post meter ft per rule net/mlx5: DR, Add support for flow metering ASO net/mlx5e: Fix wrong use of skb_tcp_all_headers() with encapsulation ==================== Link: https://lore.kernel.org/r/20220728205728.143074-1-saeed@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-30fs/dcache: Move wakeup out of i_seq_dir write held region.Sebastian Andrzej Siewior
__d_add() and __d_move() wake up waiters on dentry::d_wait from within the i_seq_dir write held region. This violates the PREEMPT_RT constraints as the wake up acquires wait_queue_head::lock which is a "sleeping" spinlock on RT. There is no requirement to do so. __d_lookup_unhash() has cleared DCACHE_PAR_LOOKUP and dentry::d_wait and returned the now unreachable wait queue head pointer to the caller, so the actual wake up can be postponed until the i_dir_seq write side critical section is left. The only requirement is that dentry::lock is held across the whole sequence including the wake up. The previous commit includes an analysis why this is considered safe. Move the wake up past end_dir_add() which leaves the i_dir_seq write side critical section and enables preemption. For non RT kernels there is no difference because preemption is still disabled due to dentry::lock being held, but it shortens the time between wake up and unlocking dentry::lock, which reduces the contention for the woken up waiter. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-07-30fs/dcache: Move the wakeup from __d_lookup_done() to the caller.Sebastian Andrzej Siewior
__d_lookup_done() wakes waiters on dentry->d_wait. On PREEMPT_RT we are not allowed to do that with preemption disabled, since the wakeup acquired wait_queue_head::lock, which is a "sleeping" spinlock on RT. Calling it under dentry->d_lock is not a problem, since that is also a "sleeping" spinlock on the same configs. Unfortunately, two of its callers (__d_add() and __d_move()) are holding more than just ->d_lock and that needs to be dealt with. The key observation is that wakeup can be moved to any point before dropping ->d_lock. As a first step to solve this, move the wake up outside of the hlist_bl_lock() held section. This is safe because: Waiters get inserted into ->d_wait only after they'd taken ->d_lock and observed DCACHE_PAR_LOOKUP in flags. As long as they are woken up (and evicted from the queue) between the moment __d_lookup_done() has removed DCACHE_PAR_LOOKUP and dropping ->d_lock, we are safe, since the waitqueue ->d_wait points to won't get destroyed without having __d_lookup_done(dentry) called (under ->d_lock). ->d_wait is set only by d_alloc_parallel() and only in case when it returns a freshly allocated in-lookup dentry. Whenever that happens, we are guaranteed that __d_lookup_done() will be called for resulting dentry (under ->d_lock) before the wq in question gets destroyed. With two exceptions wq lives in call frame of the caller of d_alloc_parallel() and we have an explicit d_lookup_done() on the resulting in-lookup dentry before we leave that frame. One of those exceptions is nfs_call_unlink(), where wq is embedded into (dynamically allocated) struct nfs_unlinkdata. It is destroyed in nfs_async_unlink_release() after an explicit d_lookup_done() on the dentry wq went into. Remaining exception is d_add_ci(). There wq is what we'd found in ->d_wait of d_add_ci() argument. Callers of d_add_ci() are two instances of ->d_lookup() and they must have been given an in-lookup dentry. Which means that they'd been called by __lookup_slow() or lookup_open(), with wq in the call frame of one of those. Result of d_alloc_parallel() in d_add_ci() is fed to d_splice_alias(), which either returns non-NULL (and d_add_ci() does d_lookup_done()) or feeds dentry to __d_add() that will do __d_lookup_done() under ->d_lock. That concludes the analysis. Let __d_lookup_unhash(): 1) Lock the lookup hash and clear DCACHE_PAR_LOOKUP 2) Unhash the dentry 3) Retrieve and clear dentry::d_wait 4) Unlock the hash and return the retrieved waitqueue head pointer 5) Let the caller handle the wake up. 6) Rename __d_lookup_done() to __d_lookup_unhash_wake() to enforce build failures for OOT code that used __d_lookup_done() and is not aware of the new return value. This does not yet solve the PREEMPT_RT problem completely because preemption is still disabled due to i_dir_seq being held for write. This will be addressed in subsequent steps. An alternative solution would be to switch the waitqueue to a simple waitqueue, but aside of Linus not being a fan of them, moving the wake up closer to the place where dentry::lock is unlocked reduces lock contention time for the woken up waiter. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lkml.kernel.org/r/20220613140712.77932-3-bigeasy@linutronix.de Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-07-30fs/dcache: Disable preemption on i_dir_seq write side on PREEMPT_RTSebastian Andrzej Siewior
i_dir_seq is a sequence counter with a lock which is represented by the lowest bit. The writer atomically updates the counter which ensures that it can be modified by only one writer at a time. This requires preemption to be disabled across the write side critical section. On !PREEMPT_RT kernels this is implicit by the caller acquiring dentry::lock. On PREEMPT_RT kernels spin_lock() does not disable preemption which means that a preempting writer or reader would live lock. It's therefore required to disable preemption explicitly. An alternative solution would be to replace i_dir_seq with a seqlock_t for PREEMPT_RT, but that comes with its own set of problems due to arbitrary lock nesting. A pure sequence count with an associated spinlock is not possible because the locks held by the caller are not necessarily related. As the critical section is small, disabling preemption is a sensible solution. Reported-by: Oleg.Karfich@wago.com Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lkml.kernel.org/r/20220613140712.77932-2-bigeasy@linutronix.de Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-07-30d_add_ci(): make sure we don't miss d_lookup_done()Al Viro
All callers of d_alloc_parallel() must make sure that resulting in-lookup dentry (if any) will encounter __d_lookup_done() before the final dput(). d_add_ci() might end up creating in-lookup dentries; they are fed to d_splice_alias(), which will normally make sure they meet __d_lookup_done(). However, it is possible to end up with d_splice_alias() failing with ERR_PTR(-ELOOP) without having done so. It takes a corrupted ntfs or case-insensitive xfs image, but neither should end up with memory corruption... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-07-29Merge tag 'mlx5-fixes-2022-07-28' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5 fixes 2022-07-28 This series provides bug fixes to mlx5 driver. * tag 'mlx5-fixes-2022-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux: net/mlx5: Fix driver use of uninitialized timeout net/mlx5: DR, Fix SMFS steering info dump format net/mlx5: Adjust log_max_qp to be 18 at most net/mlx5e: Modify slow path rules to go to slow fdb net/mlx5e: Fix calculations related to max MPWQE size net/mlx5e: xsk: Account for XSK RQ UMRs when calculating ICOSQ size net/mlx5e: Fix the value of MLX5E_MAX_RQ_NUM_MTTS net/mlx5e: TC, Fix post_act to not match on in_port metadata net/mlx5e: Remove WARN_ON when trying to offload an unsupported TLS cipher/version ==================== Link: https://lore.kernel.org/r/20220728204640.139990-1-saeed@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29Merge branch '100GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== 100GbE Intel Wired LAN Driver Updates 2022-07-28 This series contains updates to ice driver only. Michal allows for VF true promiscuous mode to be set for multiple VFs and adds clearing of promiscuous filters when VF trust is removed. Maciej refactors ice_set_features() to track/check changed features instead of constantly checking against netdev features and adds support for NETIF_F_LOOPBACK. * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: ice: allow toggling loopback mode via ndo_set_features callback ice: compress branches in ice_set_features() ice: Fix promiscuous mode not turning off ice: Introduce enabling promiscuous mode on multiple VF's ==================== Link: https://lore.kernel.org/r/20220728195538.3391360-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29Merge branch 'sfc-vf-representors-for-ef100-rx-side'Jakub Kicinski
Edward Cree says: ==================== sfc: VF representors for EF100 - RX side This series adds the receive path for EF100 VF representors, plus other minor features such as statistics. ==================== Link: https://lore.kernel.org/r/cover.1659034549.git.ecree.xilinx@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: implement ethtool get/set RX ring size for EF100 repsEdward Cree
It's not truly a ring, but the maximum length of the list of queued RX SKBs is analogous to an RX ring size, so use that API to configure it. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: use a dynamic m-port for representor RX and set it promiscEdward Cree
Representors do not want to be subject to the PF's Ethernet address filters, since traffic from VFs will typically have a destination either elsewhere on the link segment or on an overlay network. So, create a dynamic m-port with promiscuous and all-multicast filters, and set it as the egress port of representor default rules. Since the m-port is an alias of the calling PF's own m-port, traffic will still be delivered to the PF's RXQs, but it will be subject to the VNRX filter rules installed on the dynamic m-port (specified by the v-port ID field of the filter spec). Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: move table locking into filter_table_{probe,remove} methodsEdward Cree
We need to be able to drop the efx->filter_sem in ef100_filter_table_up() so that we can call functions that insert filters (and thus take that rwsem for read), which means the efx->type->filter_table_probe method needs to be responsible for taking the lock in the first place. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: insert default MAE rules to connect VFs to representorsEdward Cree
Default rules are low-priority switching rules which the hardware uses in the absence of higher-priority rules. Each representor requires a corresponding rule matching traffic from its representee VF and delivering to the PF (where a check on INGRESS_MPORT in __ef100_rx_packet() will direct it to the representor). No rule is required in the reverse direction, because representor TX uses a TX override descriptor to bypass the MAE and deliver directly to the VF. Since inserting any rule into the MAE disables the firmware's own default rules, also insert a pair of rules to connect the PF to the physical network port and vice-versa. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: receive packets from EF100 VFs into representorsEdward Cree
If the source m-port of a packet in __ef100_rx_packet() is a VF, hand off the packet to the corresponding representor with efx_ef100_rep_rx_packet(). Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: check ef100 RX packets are from the wireEdward Cree
If not, for now drop them and warn. A subsequent patch will look up the source m-port to try and find a representor to deliver them to. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: determine wire m-port at EF100 PF probe timeEdward Cree
Traffic delivered to the (MAE admin) PF could be from either the wire or a VF. The INGRESS_MPORT field of the RX prefix distinguishes these; base_mport is the value this field will have for traffic from the wire (which should be delivered to the PF's netdevice, not a representor). Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: ef100 representor RX top halfEdward Cree
Representor RX uses a NAPI context driven by a 'fake interrupt': when the parent PF receives a packet destined for the representor, it adds it to an SKB list (efv->rx_list), and schedules NAPI if the 'fake interrupt' is primed. The NAPI poll then pulls packets off this list and feeds them to the stack with netif_receive_skb_list(). This scheme allows us to decouple representor RX from the parent PF's RX fast-path. This patch implements the 'top half', which builds an SKB, copies data into it from the RX buffer (which can then be released), adds it to the queue and fires the 'fake interrupt' if necessary. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: ef100 representor RX NAPI pollEdward Cree
This patch adds the 'bottom half' napi->poll routine for representor RX. See the next patch (with the top half) for an explanation of the 'fake interrupt' scheme used to drive this NAPI context. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29sfc: plumb ef100 representor statsEdward Cree
Implement .ndo_get_stats64() method to read values out of struct efx_rep_sw_stats. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29Merge tag 'mm-hotfixes-stable-2022-07-29' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "Two hotfixes, both cc:stable" * tag 'mm-hotfixes-stable-2022-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm/hmm: fault non-owner device private entries page_alloc: fix invalid watermark check on a negative value
2022-07-29net: marvell: prestera: uninitialized variable bugDan Carpenter
The "ret" variable needs to be initialized at the start. Fixes: 52323ef75414 ("net: marvell: prestera: add phylink support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YuKeBBuGtsmd7QdT@kili Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29dn_route: replace "jiffies-now>0" with "jiffies!=now"Yu Zhe
Use "jiffies != now" to replace "jiffies - now > 0" to make code more readable. We want to put a limit on how long the loop can run for before rescheduling. Signed-off-by: Yu Zhe <yuzhe@nfschina.com> Link: https://lore.kernel.org/r/20220729061712.22666-1-yuzhe@nfschina.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29Merge tag 'wireless-next-2022-07-29' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v5.20 Fourth set of patches for v5.20, last few patches before the merge window. Only driver changes this time, mostly just fixes and cleanup. Major changes: brcmfmac - support brcm,ccode-map-trivial DT property wcn36xx - add debugfs file to show firmware feature strings * tag 'wireless-next-2022-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (36 commits) wifi: rtw88: check the return value of alloc_workqueue() wifi: rtw89: 8852a: adjust IMR for SER L1 wifi: rtw89: 8852a: update RF radio A/B R56 wifi: wcn36xx: Add debugfs entry to read firmware feature strings wifi: wcn36xx: Move capability bitmap to string translation function to firmware.c wifi: wcn36xx: Move firmware feature bit storage to dedicated firmware.c file wifi: wcn36xx: Rename clunky firmware feature bit enum wifi: brcmfmac: prevent double-free on hardware-reset wifi: brcmfmac: support brcm,ccode-map-trivial DT property dt-bindings: bcm4329-fmac: add optional brcm,ccode-map-trivial wifi: brcmfmac: Replace default (not configured) MAC with a random MAC wifi: brcmfmac: Add brcmf_c_set_cur_etheraddr() helper wifi: brcmfmac: Remove #ifdef guards for PM related functions wifi: brcmfmac: use strreplace() in brcmf_of_probe() wifi: plfxlc: Use eth_zero_addr() to assign zero address wifi: wilc1000: use existing iftype variable to store the interface type wifi: wilc1000: add 'isinit' flag for SDIO bus similar to SPI wifi: wilc1000: cancel the connect operation during interface down wifi: wilc1000: get correct length of string WID from received config packet wifi: wilc1000: set station_info flag only when signal value is valid ... ==================== Link: https://lore.kernel.org/r/20220729192832.A5011C433D6@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski
Andrii Nakryiko says: ==================== bpf-next 2022-07-29 We've added 22 non-merge commits during the last 4 day(s) which contain a total of 27 files changed, 763 insertions(+), 120 deletions(-). The main changes are: 1) Fixes to allow setting any source IP with bpf_skb_set_tunnel_key() helper, from Paul Chaignon. 2) Fix for bpf_xdp_pointer() helper when doing sanity checking, from Joanne Koong. 3) Fix for XDP frame length calculation, from Lorenzo Bianconi. 4) Libbpf BPF_KSYSCALL docs improvements and fixes to selftests to accommodate s390x quirks with socketcall(), from Ilya Leoshkevich. 5) Allow/denylist and CI configs additions to selftests/bpf to improve BPF CI, from Daniel Müller. 6) BPF trampoline + ftrace follow up fixes, from Song Liu and Xu Kuohai. 7) Fix allocation warnings in netdevsim, from Jakub Kicinski. 8) bpf_obj_get_opts() libbpf API allowing to provide file flags, from Joe Burton. 9) vsnprintf usage fix in bpf_snprintf_btf(), from Fedor Tokarev. 10) Various small fixes and clean ups, from Daniel Müller, Rongguang Wei, Jörn-Thorben Hinz, Yang Li. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (22 commits) bpf: Remove unneeded semicolon libbpf: Add bpf_obj_get_opts() netdevsim: Avoid allocation warnings triggered from user space bpf: Fix NULL pointer dereference when registering bpf trampoline bpf: Fix test_progs -j error with fentry/fexit tests selftests/bpf: Bump internal send_signal/send_signal_tracepoint timeout bpftool: Don't try to return value from void function in skeleton bpftool: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE macro bpf: btf: Fix vsnprintf return value check libbpf: Support PPC in arch_specific_syscall_pfx selftests/bpf: Adjust vmtest.sh to use local kernel configuration selftests/bpf: Copy over libbpf configs selftests/bpf: Sort configuration selftests/bpf: Attach to socketcall() in test_probe_user libbpf: Extend BPF_KSYSCALL documentation bpf, devmap: Compute proper xdp_frame len redirecting frames bpf: Fix bpf_xdp_pointer return pointer selftests/bpf: Don't assign outer source IP to host bpf: Set flow flag to allow any source IP in bpf_tunnel_key geneve: Use ip_tunnel_key flow flags in route lookups ... ==================== Link: https://lore.kernel.org/r/20220729230948.1313527-1-andrii@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-29scripts/gdb: ensure the absolute path is generated on initial sourceAaron Tomlin
Post 'make scripts_gdb' a symbolic link to scripts/gdb/vmlinux-gdb.py is created. Currently 'os.path.dirname(__file__)' does not generate the absolute path to scripts/gdb resulting in the following: (gdb) source vmlinux-gdb.py Traceback (most recent call last): File "scripts/gdb/vmlinux-gdb.py", line 25, in <module> import linux.utils ModuleNotFoundError: No module named 'linux' This patch ensures that the absolute path to scripts/gdb in relation to the given file is generated so each module can be located accordingly. Link: https://lkml.kernel.org/r/20220712110248.1404125-1-atomlin@redhat.com Signed-off-by: Aaron Tomlin <atomlin@redhat.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Cc: Jan Kiszka <jan.kiszka@siemens.com> Cc: Kieran Bingham <kbingham@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29MAINTAINERS: kunit: add David Gow as a maintainer of KUnitBrendan Higgins
David has been a de facto maintainer of KUnit for a long time now. Formalize this in the MAINTAINERS file. Link: https://lkml.kernel.org/r/20220725220737.790976-1-brendan.higgins@linux.dev Signed-off-by: Brendan Higgins <brendan.higgins@linux.dev> Reviewed-by: David Gow <davidgow@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Daniel Latypov <dlatypov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29mailmap: add linux.dev alias for Brendan HigginsBrendan Higgins
Because of my new work remote setup at Google, I can no longer use command line tools with my google.com email address, for this reason I got a linux.dev account. So update the mailmap to show the new alias I will be using. Link: https://lkml.kernel.org/r/20220725215833.789133-1-brendan.higgins@linux.dev Signed-off-by: Brendan Higgins <brendan.higgins@linux.dev> Reviewed-by: David Gow <davidgow@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Daniel Latypov <dlatypov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29mailmap: update Kirill's emailKirill Tkhai
I disconnected from both Virtuozzo and OpenVZ, so this updates my email to point to my own. I haven't used @openvz address for patches, so let's rewrite the line instead of to add a new one. CC all previous addresses. Link: https://lkml.kernel.org/r/14ca895b-e745-6ba2-8be8-652feacbc907@ya.ru Signed-off-by: Kirill Tkhai <tkhai@ya.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29profile: setup_profiling_timer() is moslty not implementedBen Dooks
The setup_profiling_timer() is mostly un-implemented by many architectures. In many places it isn't guarded by CONFIG_PROFILE which is needed for it to be used. Make it a weak symbol in kernel/profile.c and remove the 'return -EINVAL' implementations from the kenrel. There are a couple of architectures which do return 0 from the setup_profiling_timer() function but they don't seem to do anything else with it. To keep the /proc compatibility for now, leave these for a future update or removal. On ARM, this fixes the following sparse warning: arch/arm/kernel/smp.c:793:5: warning: symbol 'setup_profiling_timer' was not declared. Should it be static? Link: https://lkml.kernel.org/r/20220721195509.418205-1-ben-linux@fluff.org Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29ocfs2: fix a typo in a commentChristophe JAILLET
s/heartbaet/heartbeat Link: https://lkml.kernel.org/r/4d4a6786e8ad522bfad6d2401b7f6634f8af0e5d.1658436259.git.christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29ocfs2: use the bitmap API to simplify codeChristophe JAILLET
Use bitmap_zero() instead of hand-writing it. It is less verbose. While at it, add an explicit #include <linux/bitmap.h>. Link: https://lkml.kernel.org/r/86d2a027c319db12055c98f00c65f7d01e703722.1658436259.git.christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29ocfs2: remove some useless functionsChristophe JAILLET
Patch series "ocfs2: A few clean_ups", v2. __ocfs2_node_map_set_bit() and __ocfs2_node_map_clear_bit() are just wrapper around set_bit() and clear_bit(). The leading __ also makes think that these functions are non-atomic just like __set_bit() and __clear_bit(). So, just remove these wrappers and call set_bit() and clear_bit() directly. Link: https://lkml.kernel.org/r/cover.1658436259.git.christophe.jaillet@wanadoo.fr Link: https://lkml.kernel.org/r/bd1429c84ec7d174c96dbb67a2b42b1b456d9394.1658436259.git.christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29lib/mpi: fix typo 'the the' in commentSlark Xiao
Replace 'the the' with 'the' in the comment. Link: https://lkml.kernel.org/r/20220722101922.81126-1-slark_xiao@163.com Signed-off-by: Slark Xiao <slark_xiao@163.com> Cc: Hongbo Li <herberthbli@tencent.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29proc: add some (hopefully) insightful commentsAlexey Dobriyan
* /proc/${pid}/net status * removing PDE vs last close stuff (again!) * random small stuff Link: https://lkml.kernel.org/r/YtwrM6sDC0OQ53YB@localhost.localdomain Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29bdi: remove enum wb_congested_stateXiu Jianfeng
enum wb_congested_state and the member 'congested' in bdi_writeback are useless since commit a88f2096d5a2 ("remove congestion tracking framework"), so remove it. Link: https://lkml.kernel.org/r/20220719083349.87547-1-xiujianfeng@huawei.com Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: NeilBrown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29kernel/hung_task: fix address space of proc_dohung_task_timeout_secsBen Dooks
The proc_dohung_task_timeout_secs() function is incorrectly marked as having a __user buffer as argument 3. However this is not the case and it is casing multiple sparse warnings. Fix the following warnings by removing __user from the argument: kernel/hung_task.c:237:52: warning: incorrect type in argument 3 (different address spaces) kernel/hung_task.c:237:52: expected void * kernel/hung_task.c:237:52: got void [noderef] __user *buffer kernel/hung_task.c:287:35: warning: incorrect type in initializer (incompatible argument 3 (different address spaces)) kernel/hung_task.c:287:35: expected int ( [usertype] *proc_handler )( ... ) kernel/hung_task.c:287:35: got int ( * )( ... ) kernel/hung_task.c:295:35: warning: incorrect type in initializer (incompatible argument 3 (different address spaces)) kernel/hung_task.c:295:35: expected int ( [usertype] *proc_handler )( ... ) kernel/hung_task.c:295:35: got int ( * )( ... ) Link: https://lkml.kernel.org/r/20220714074744.189017-1-ben.dooks@sifive.com Signed-off-by: Ben Dooks <ben.dooks@sifive.com> Cc: <Conor.Dooley@microchip.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t()Jiangshan Yi
Fix the following coccicheck warning: lib/lzo/lzo1x_compress.c:54: WARNING opportunity for min(). lib/lzo/lzo1x_compress.c:329: WARNING opportunity for min(). min() and min_t() macro is defined in include/linux/minmax.h. It avoids multiple evaluations of the arguments when non-constant and performs strict type-checking. Link: https://lkml.kernel.org/r/20220714015441.1313036-1-13667453960@163.com Signed-off-by: Jiangshan Yi <yijiangshan@kylinos.cn> Tested-by: Dave Rodgman <dave.rodgman@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29squashfs: support reading fragments in readahead callPhillip Lougher
Add a function which can be used to read fragments in the readahead call. This function is necessary because filesystems built with the -tailends (or -always-use-fragments) option may have fragments present which cannot be currently handled. Link: https://lkml.kernel.org/r/20220617083810.337573-5-hsinyi@chromium.org Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Cc: Hou Tao <houtao1@huawei.com> Cc: kernel test robot <lkp@intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Miao Xie <miaoxie@huawei.com> Cc: Xiongwei Song <Xiongwei.Song@windriver.com> Cc: Zhang Yi <yi.zhang@huawei.com> Cc: Zheng Liang <zhengliang6@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29squashfs: implement readaheadHsin-Yi Wang
Implement readahead callback for squashfs. It will read datablocks which cover pages in readahead request. For a few cases it will not mark page as uptodate, including: - file end is 0. - zero filled blocks. - current batch of pages isn't in the same datablock. - decompressor error. Otherwise pages will be marked as uptodate. The unhandled pages will be updated by readpage later. Link: https://lkml.kernel.org/r/20220617083810.337573-4-hsinyi@chromium.org Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Suggested-by: Matthew Wilcox <willy@infradead.org> Reported-by: Matthew Wilcox <willy@infradead.org> Reported-by: Phillip Lougher <phillip@squashfs.org.uk> Reported-by: Xiongwei Song <Xiongwei.Song@windriver.com> Reported-by: Andrew Morton <akpm@linux-foundation.org> Cc: Hou Tao <houtao1@huawei.com> Cc: kernel test robot <lkp@intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Miao Xie <miaoxie@huawei.com> Cc: Zhang Yi <yi.zhang@huawei.com> Cc: Zheng Liang <zhengliang6@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29squashfs: always build "file direct" version of page actorPhillip Lougher
Squashfs_readahead uses the "file direct" version of the page actor, and so build it unconditionally. Link: https://lkml.kernel.org/r/20220617083810.337573-3-hsinyi@chromium.org Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Hou Tao <houtao1@huawei.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Miao Xie <miaoxie@huawei.com> Cc: Xiongwei Song <Xiongwei.Song@windriver.com> Cc: Zhang Yi <yi.zhang@huawei.com> Cc: Zheng Liang <zhengliang6@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29Revert "squashfs: provide backing_dev_info in order to disable read-ahead"Hsin-Yi Wang
Patch series "Implement readahead for squashfs", v7. Commit 9eec1d897139("squashfs: provide backing_dev_info in order to disable read-ahead") mitigates the performance drop issue for squashfs by closing readahead for it. This series implements readahead callback for squashfs. This patch (of 4): This reverts 9eec1d897139e5 ("squashfs: provide backing_dev_info in order to disable read-ahead"). Revert closing the readahead to squashfs since the readahead callback for squashfs is implemented. Link: https://lkml.kernel.org/r/20220617083810.337573-1-hsinyi@chromium.org Link: https://lkml.kernel.org/r/20220617083810.337573-2-hsinyi@chromium.org Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Suggested-by: Xiongwei Song <Xiongwei.Song@windriver.com> Cc: Phillip Lougher <phillip@squashfs.org.uk> Cc: Matthew Wilcox <willy@infradead.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Zheng Liang <zhengliang6@huawei.com> Cc: Zhang Yi <yi.zhang@huawei.com> Cc: Hou Tao <houtao1@huawei.com> Cc: Miao Xie <miaoxie@huawei.com> Cc: kernel test robot <lkp@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29mm: Kconfig: fix typoSophia Gabriella
Fixes a typo in the help section for ZSWAP. Link: https://lkml.kernel.org/r/Message-ID: Signed-off-by: Sophia Gabriella <sophia.gabriellla@outlook.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29mm: memory-failure: convert to pr_fmt()Kefeng Wang
Use pr_fmt to prefix all pr_<level> output, but unpoison_memory() and soft_offline_page() are used by error injection, which have own prefixes like "Unpoison:" and "soft offline:", meanwhile, soft_offline_page() could be used by memory hotremove, so reset pr_fmt before unpoison_pr_info definition to keep the original output for them. [wangkefeng.wang@huawei.com: v3] Link: https://lkml.kernel.org/r/20220729031919.72331-1-wangkefeng.wang@huawei.com Link: https://lkml.kernel.org/r/20220726081046.10742-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Reviewed-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29mm: use is_zone_movable_page() helperKefeng Wang
Use is_zone_movable_page() helper to simplify code. Link: https://lkml.kernel.org/r/20220726131135.146912-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29hugetlbfs: fix inaccurate comment in hugetlbfs_statfs()Miaohe Lin
In some cases, e.g. when size option is not specified, f_blocks, f_bavail and f_bfree will be set to -1 instead of 0. Likewise, when nr_inodes isn't specified, f_files and f_ffree will be set to -1 too. Update the comment to make this clear. Link: https://lkml.kernel.org/r/20220726142918.51693-6-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29hugetlbfs: cleanup some comments in inode.cMiaohe Lin
The function generic_file_buffered_read has been renamed to filemap_read since commit 87fa0f3eb267 ("mm/filemap: rename generic_file_buffered_read to filemap_read"). Update the corresponding comment. And duplicated taken in hugetlbfs_fill_super is removed. Link: https://lkml.kernel.org/r/20220726142918.51693-5-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-29hugetlbfs: remove unneeded header fileMiaohe Lin
The header file signal.h is unneeded now. Remove it. Link: https://lkml.kernel.org/r/20220726142918.51693-4-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>