summaryrefslogtreecommitdiff
path: root/include
AgeCommit message (Collapse)Author
2022-07-28add missing includes and forward declarations to networking includes under ↵Jakub Kicinski
linux/ Similarly to a recent include/net/ cleanup, this patch adds missing includes to networking headers under include/linux. All these problems are currently masked by the existing users including the missing dependency before the broken header. Link: https://lore.kernel.org/all/20220723045755.2676857-1-kuba@kernel.org/ v1 Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20220726215652.158167-1-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-28regulator: Consumer load management improvementsMark Brown
Merge series from Douglas Anderson <dianders@chromium.org>: The main goal of this series is to make a small dent in cleaning up the way we deal with regulator loads. The idea is to add some extra functionality to the regulator "bulk" API so that consumers can specify the load using that.
2022-07-27Merge tag 'asm-generic-fixes-5.19-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic fixes from Arnd Bergmann: "Two more bug fixes for asm-generic, one addressing an incorrect Kconfig symbol reference and another one fixing a build failure for the perf tool on mips and possibly others" * tag 'asm-generic-fixes-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic: remove a broken and needless ifdef conditional tools: Fixed MIPS builds due to struct flock re-definition
2022-07-27clocksource/drivers/timer-ti-dm: Move inline functions to driver for am6Tony Lindgren
The __omap_dm_timer_* inline functions in the header are no longer needed outside the driver, and the header ifdefs prevent the driver working for ARCH_K3. Let's move the inline functions to the driver and drop the ifdefs and drop the unused functions __omap_dm_timer_override_errata() and __omap_dm_timer_load_start(). Cc: Keerthy <j-keerthy@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Vignesh Raghavendra <vigneshr@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/20220408101715.43697-2-tony@atomide.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2022-07-27io_uring: notification completion optimisationPavel Begunkov
We want to use all optimisations that we have for io_uring requests like completion batching, memory caching and more but for zc notifications. Fortunately, notification perfectly fit the request model so we can overlay them onto struct io_kiocb and use all the infratructure. Most of the fields of struct io_notif natively fits into io_kiocb, so we replace struct io_notif with struct io_kiocb carrying struct io_notif_data in the cmd cache line. Then we adapt io_alloc_notif() to use io_alloc_req()/io_alloc_req_refill(), and kill leftovers of hand coded caching. __io_notif_complete_tw() is converted to use io_uring's tw infra. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/9e010125175e80baf51f0ca63bdc7cc6a4a9fa56.1658913593.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-27regulator: core: Allow drivers to define their init data as constDouglas Anderson
Drivers tend to want to define the names of their regulators somewhere in their source file as "static const". This means, inevitable, that every driver out there open codes something like this: static const char * const supply_names[] = { "vcc", "vccl", }; static int get_regulators(struct my_data *data) { int i; data->supplies = devm_kzalloc(...) if (!data->supplies) return -ENOMEM; for (i = 0; i < ARRAY_SIZE(supply_names); i++) data->supplies[i].supply = supply_names[i]; return devm_regulator_bulk_get(data->dev, ARRAY_SIZE(supply_names), data->supplies); } Let's make this more convenient by doing providing a helper that does the copy. I have chosen to have the "const" input structure here be the exact same structure as the normal one passed to devm_regulator_bulk_get(). This is slightly inefficent since the input data can't possibly have anything useful for "ret" or consumer and thus we waste 8 bytes per structure. This seems an OK tradeoff for not introducing an extra structure. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20220726103631.v2.6.I38fc508a73135a5c1b873851f3553ff2a3a625f5@changeid Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-27regulator: core: Allow specifying an initial load w/ the bulk APIDouglas Anderson
There are a number of drivers that follow a pattern that looks like this: 1. Use the regulator bulk API to get a bunch of regulators. 2. Set the load on each of the regulators to use whenever the regulators are enabled. Let's make this easier by just allowing the drivers to pass the load in. As part of this change we need to move the error printing in regulator_bulk_get() around; let's switch to the new dev_err_probe() to simplify it. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20220726103631.v2.4.Ie85f68215ada39f502a96dcb8a1f3ad977e3f68a@changeid Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-27net/smc: Pass on DMBE bit mask in IRQ handlerStefan Raspl
Make the DMBE bits, which are passed on individually in ism_move() as parameter idx, available to the receiver. Signed-off-by: Stefan Raspl <raspl@linux.ibm.com> Signed-off-by: Wenjia Zhang < wenjia@linux.ibm.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-27s390/ism: CleanupsStefan Raspl
Reworked signature of the function to retrieve the system EID: No plausible reason to use a double pointer. And neither to pass in the device as an argument, as this identifier is by definition per system, not per device. Plus some minor consistency edits. Signed-off-by: Stefan Raspl <raspl@linux.ibm.com> Signed-off-by: Wenjia Zhang < wenjia@linux.ibm.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-27misc: Mark MICROCODE_MINOR unusedBorislav Petkov
This one is unused since 181b6f40e9ea ("x86/microcode: Rip out the OLD_INTERFACE") so comment it out. Link: https://lore.kernel.org/r/20220525161232.14924-1-bp@alien8.de Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220727114948.30123-1-bp@alien8.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-26Merge tag 'mm-hotfixes-stable-2022-07-26' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "Thirteen hotfixes. Eight are cc:stable and the remainder are for post-5.18 issues or are too minor to warrant backporting" * tag 'mm-hotfixes-stable-2022-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mailmap: update Gao Xiang's email addresses userfaultfd: provide properly masked address for huge-pages Revert "ocfs2: mount shared volume without ha stack" hugetlb: fix memoryleak in hugetlb_mcopy_atomic_pte fs: sendfile handles O_NONBLOCK of out_fd ntfs: fix use-after-free in ntfs_ucsncmp() secretmem: fix unhandled fault in truncate mm/hugetlb: separate path for hwpoison entry in copy_hugetlb_page_range() mm: fix missing wake-up event for FSDAX pages mm: fix page leak with multiple threads mapping the same page mailmap: update Seth Forshee's email address tmpfs: fix the issue that the mount and remount results are inconsistent. mm: kfence: apply kmemleak_ignore_phys on early allocated pool
2022-07-27Merge tag 'amd-drm-next-5.20-2022-07-26' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-next amdgpu: - VCN4 fixes - RAS support for UMC 8.10 - ACP support for jadeite platforms - NBIO HDP flush fixes - Misc spelling and grammar fixes - Runtime PM fixes - Non-DC HPD fix - Clean up amdgpu DM code - DSC fixes - Expose some additional GFXOFF data via debugfs - More FP clean up for new DCN blocks - PPC DC FP fixes - DCN 3.1.4 fixes - DC DML stack usage fixes - GMC fixes - SPM fixes for RDNA2 amdkfd: - MMU notifier fix - Mutex fix UAPI: - Add a comment about VCN4 unified queues - IP version information for UMDs Proposed mesa change: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17411/diffs?commit_id=c8a63590dfd0d64e6e6a634dcfed993f135dd075 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220726181536.5759-1-alexander.deucher@amd.com
2022-07-26tls: rx: do not use the standard strparserJakub Kicinski
TLS is a relatively poor fit for strparser. We pause the input every time a message is received, wait for a read which will decrypt the message, start the parser, repeat. strparser is built to delineate the messages, wrap them in individual skbs and let them float off into the stack or a different socket. TLS wants the data pages and nothing else. There's no need for TLS to keep cloning (and occasionally skb_unclone()'ing) the TCP rx queue. This patch uses a pre-allocated skb and attaches the skbs from the TCP rx queue to it as frags. TLS is careful never to modify the input skb without CoW'ing / detaching it first. Since we call TCP rx queue cleanup directly we also get back the benefit of skb deferred free. Overall this results in a 6% gain in my benchmarks. Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-26tcp: allow tls to decrypt directly from the tcp rcv queueJakub Kicinski
Expose TCP rx queue accessor and cleanup, so that TLS can decrypt directly from the TCP queue. The expectation is that the caller can access the skb returned from tcp_recv_skb() and up to inq bytes worth of data (some of which may be in ->next skbs) and then call tcp_read_done() when data has been consumed. The socket lock must be held continuously across those two operations. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-26i2c: extend documentation about retvals of master_xfer functionsWolfram Sang
It was stated how the error codes should be. It was not stated what the regular case should return. Add this. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-07-26net: devlink: introduce nested devlink entity for line cardJiri Pirko
For the purpose of exposing device info and allow flash update which is going to be implemented in follow-up patches, introduce a possibility for a line card to expose relation to nested devlink entity. The nested devlink entity represents the line card. Example: $ devlink lc show pci/0000:01:00.0 lc 1 pci/0000:01:00.0: lc 1 state active type 16x100G nested_devlink auxiliary/mlxsw_core.lc.0 supported_types: 16x100G $ devlink dev show auxiliary/mlxsw_core.lc.0 auxiliary/mlxsw_core.lc.0 Signed-off-by: Jiri Pirko <jiri@nvidia.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-26Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_putLuiz Augusto von Dentz
This fixes the following trace which is caused by hci_rx_work starting up *after* the final channel reference has been put() during sock_close() but *before* the references to the channel have been destroyed, so instead the code now rely on kref_get_unless_zero/l2cap_chan_hold_unless_zero to prevent referencing a channel that is about to be destroyed. refcount_t: increment on 0; use-after-free. BUG: KASAN: use-after-free in refcount_dec_and_test+0x20/0xd0 Read of size 4 at addr ffffffc114f5bf18 by task kworker/u17:14/705 CPU: 4 PID: 705 Comm: kworker/u17:14 Tainted: G S W 4.14.234-00003-g1fb6d0bd49a4-dirty #28 Hardware name: Qualcomm Technologies, Inc. SM8150 V2 PM8150 Google Inc. MSM sm8150 Flame DVT (DT) Workqueue: hci0 hci_rx_work Call trace: dump_backtrace+0x0/0x378 show_stack+0x20/0x2c dump_stack+0x124/0x148 print_address_description+0x80/0x2e8 __kasan_report+0x168/0x188 kasan_report+0x10/0x18 __asan_load4+0x84/0x8c refcount_dec_and_test+0x20/0xd0 l2cap_chan_put+0x48/0x12c l2cap_recv_frame+0x4770/0x6550 l2cap_recv_acldata+0x44c/0x7a4 hci_acldata_packet+0x100/0x188 hci_rx_work+0x178/0x23c process_one_work+0x35c/0x95c worker_thread+0x4cc/0x960 kthread+0x1a8/0x1c4 ret_from_fork+0x10/0x18 Cc: stable@kernel.org Reported-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Tested-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2022-07-26ACPI: CPPC: Do not prevent CPPC from working in the futureRafael J. Wysocki
There is a problem with the current revision checks in is_cppc_supported() that they essentially prevent the CPPC support from working if a new _CPC package format revision being a proper superset of the v3 and only causing _CPC to return a package with more entries (while retaining the types and meaning of the entries defined by the v3) is introduced in the future and used by the platform firmware. In that case, as long as the number of entries in the _CPC return package is at least CPPC_V3_NUM_ENT, it should be perfectly fine to use the v3 support code and disregard the additional package entries added by the new package format revision. For this reason, drop is_cppc_supported() altogether, put the revision checks directly into acpi_cppc_processor_probe() so they are easier to follow and rework them to take the case mentioned above into account. Fixes: 4773e77cdc9b ("ACPI / CPPC: Add support for CPPC v3") Cc: 4.18+ <stable@vger.kernel.org> # 4.18+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-07-26flow_offload: Introduce flow_match_pppoeWojciech Drewek
Allow to offload PPPoE filters by adding flow_rule_match_pppoe. Drivers can extract PPPoE specific fields from now on. Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-26net/sched: flower: Add PPPoE filterWojciech Drewek
Add support for PPPoE specific fields for tc-flower. Those fields can be provided only when protocol was set to ETH_P_PPP_SES. Defines, dump, load and set are being done here. Overwrite basic.n_proto only in case of PPP_IP and PPP_IPV6, otherwise leave it as ETH_P_PPP_SES. Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Acked-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-26flow_dissector: Add PPPoE dissectorsWojciech Drewek
Allow to dissect PPPoE specific fields which are: - session ID (16 bits) - ppp protocol (16 bits) - type (16 bits) - this is PPPoE ethertype, for now only ETH_P_PPP_SES is supported, possible ETH_P_PPP_DISC in the future The goal is to make the following TC command possible: # tc filter add dev ens6f0 ingress prio 1 protocol ppp_ses \ flower \ pppoe_sid 12 \ ppp_proto ip \ action drop Note that only PPPoE Session is supported. Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Acked-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-07-26ip_tunnels: Add new flow flags field to ip_tunnel_keyPaul Chaignon
This commit extends the ip_tunnel_key struct with a new field for the flow flags, to pass them to the route lookups. This new field will be populated and used in subsequent commits. Signed-off-by: Paul Chaignon <paul@isovalent.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/f8bfd4983bd06685a59b1e3ba76ca27496f51ef3.1658759380.git.paul@isovalent.com
2022-07-25Merge tag 'wireless-next-2022-07-25' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v5.20 Third set of patches for v5.20. MLO work continues and we have a lot of stack changes due to that, including driver API changes. Not much driver patches except on mt76. Major changes: cfg80211/mac80211 - more prepartion for Wi-Fi 7 Multi-Link Operation (MLO) support, works with one link now - align with IEEE Draft P802.11be_D2.0 - hardware timestamps for receive and transmit mt76 - preparation for new chipset support - ACPI SAR support * tag 'wireless-next-2022-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (254 commits) wifi: mac80211: fix link data leak wifi: mac80211: mlme: fix disassoc with MLO wifi: mac80211: add macros to loop over active links wifi: mac80211: remove erroneous sband/link validation wifi: mac80211: mlme: transmit assoc frame with address translation wifi: mac80211: verify link addresses are different wifi: mac80211: rx: track link in RX data wifi: mac80211: optionally implement MLO multicast TX wifi: mac80211: expand ieee80211_mgmt_tx() for MLO wifi: nl80211: add MLO link ID to the NL80211_CMD_FRAME TX API wifi: mac80211: report link ID to cfg80211 on mgmt RX wifi: cfg80211: report link ID in NL80211_CMD_FRAME wifi: mac80211: add hardware timestamps for RX and TX wifi: cfg80211: add hardware timestamps to frame RX info wifi: cfg80211/nl80211: move rx management data into a struct wifi: cfg80211: add a function for reporting TX status with hardware timestamps wifi: nl80211: add RX and TX timestamp attributes wifi: ieee80211: add helper functions for detecting TM/FTM frames wifi: mac80211_hwsim: handle links for wmediumd/virtio wifi: mac80211: sta_info: fix link_sta insertion ... ==================== Link: https://lore.kernel.org/r/20220725174547.EA465C341C6@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-25block: add bdev_max_segments() helperNaohiro Aota
Add bdev_max_segments() like other queue parameters. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Signed-off-by: David Sterba <dsterba@suse.com>
2022-07-25highmem: Make __kunmap_{local,atomic}() take const void pointerFabio M. De Francesco
__kunmap_ {local,atomic}() currently take pointers to void. However, this is semantically incorrect, since these functions do not change the memory their arguments point to. Therefore, make this semantics explicit by modifying the __kunmap_{local,atomic}() prototypes to take pointers to const void. As a side effect, compilers may produce more efficient code. Acked-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Helge Deller <deller@gmx.de> # parisc Suggested-by: David Sterba <dsterba@suse.cz> Suggested-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2022-07-25btrfs: add tracepoints for ordered extentsJohannes Thumshirn
When debugging a reference counting issue with ordered extents, I've found we're lacking a lot of tracepoint coverage in the ordered extent code. Close these gaps by adding tracepoints after every refcount_inc() in the ordered extent code. Reviewed-by: Boris Burkov <boris@bur.io> Reviewed-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2022-07-25btrfs: send: enable support for stream v2 and compressed writesOmar Sandoval
Now that the new support is implemented, allow the ioctl to accept v2 and the compressed flag, and update the version in sysfs. Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
2022-07-25btrfs: send: add stream v2 definitionsOmar Sandoval
This adds the definitions of the new commands for send stream version 2 and their respective attributes: fallocate, FS_IOC_SETFLAGS (a.k.a. chattr), and encoded writes. It also documents two changes to the send stream format in v2: the receiver shouldn't assume a maximum command size, and the DATA attribute is encoded differently to allow for writes larger than 64k. These will be implemented in subsequent changes, and then the ioctl will accept the new version and flag. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
2022-07-25btrfs: add trace event for submitted RAID56 bioQu Wenruo
Add tracepoint for better insight to how the RAID56 data are submitted. The output looks like this: (trace event header and UUID skipped) raid56_read_partial: full_stripe=389152768 devid=3 type=DATA1 offset=32768 opf=0x0 physical=323059712 len=32768 raid56_read_partial: full_stripe=389152768 devid=1 type=DATA2 offset=0 opf=0x0 physical=67174400 len=65536 raid56_write_stripe: full_stripe=389152768 devid=3 type=DATA1 offset=0 opf=0x1 physical=323026944 len=32768 raid56_write_stripe: full_stripe=389152768 devid=2 type=PQ1 offset=0 opf=0x1 physical=323026944 len=32768 The above debug output is from a 32K data write into an empty RAID56 data chunk. Some explanation on the event output: full_stripe: the logical bytenr of the full stripe devid: btrfs devid type: raid stripe type. DATA1: the first data stripe DATA2: the second data stripe PQ1: the P stripe PQ2: the Q stripe offset: the offset inside the stripe. opf: the bio op type physical: the physical offset the bio is for len: the length of the bio The first two lines are from partial RMW read, which is reading the remaining data stripes from disks. The last two lines are for full stripe RMW write, which is writing the involved two 16K stripes (one for DATA1 stripe, one for P stripe). The stripe for DATA2 doesn't need to be written. There are 5 types of trace events: - raid56_read_partial Read remaining data for regular read/write path. - raid56_write_stripe Write the modified stripes for regular read/write path. - raid56_scrub_read_recover Read remaining data for scrub recovery path. - raid56_scrub_write_stripe Write the modified stripes for scrub path. - raid56_scrub_read Read remaining data for scrub path. Also, since the trace events are included at super.c, we have to export needed structure definitions to 'raid56.h' and include the header in super.c, or we're unable to access those members. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> [ reformat comments ] Signed-off-by: David Sterba <dsterba@suse.com>
2022-07-25drm/amdgpu: add the IP discovery IP versions for HW INFO dataAlex Deucher
Use the former pad element to store the IP versions from the IP discovery table. This allows userspace to get the IP version from the kernel to better align with hardware IP versions. Proposed mesa patch: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17411/diffs?commit_id=c8a63590dfd0d64e6e6a634dcfed993f135dd075 Reviewed-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-25Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2022-07-20 1) Don't set DST_NOPOLICY in IPv4, a recent patch made this superfluous. From Eyal Birger. 2) Convert alg_key to flexible array member to avoid an iproute2 compile warning when built with gcc-12. From Stephen Hemminger. 3) xfrm_register_km and xfrm_unregister_km do always return 0 so change the type to void. From Zhengchao Shao. 4) Fix spelling mistake in esp6.c From Zhang Jiaming. 5) Improve the wording of comment above XFRM_OFFLOAD flags. From Petr Vaněk. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-25net: Fix data-races around sysctl_[rw]mem(_offset)?.Kuniyuki Iwashima
While reading these sysctl variables, they can be changed concurrently. Thus, we need to add READ_ONCE() to their readers. - .sysctl_rmem - .sysctl_rwmem - .sysctl_rmem_offset - .sysctl_wmem_offset - sysctl_tcp_rmem[1, 2] - sysctl_tcp_wmem[1, 2] - sysctl_decnet_rmem[1] - sysctl_decnet_wmem[1] - sysctl_tipc_rmem[1] Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-25random: handle archrandom with multiple longsJason A. Donenfeld
The archrandom interface was originally designed for x86, which supplies RDRAND/RDSEED for receiving random words into registers, resulting in one function to generate an int and another to generate a long. However, other architectures don't follow this. On arm64, the SMCCC TRNG interface can return between one and three longs. On s390, the CPACF TRNG interface can return arbitrary amounts, with four longs having the same cost as one. On UML, the os_getrandom() interface can return arbitrary amounts. So change the api signature to take a "max_longs" parameter designating the maximum number of longs requested, and then return the number of longs generated. Since callers need to check this return value and loop anyway, each arch implementation does not bother implementing its own loop to try again to fill the maximum number of longs. Additionally, all existing callers pass in a constant max_longs parameter. Taken together, these two things mean that the codegen doesn't really change much for one-word-at-a-time platforms, while performance is greatly improved on platforms such as s390. Acked-by: Heiko Carstens <hca@linux.ibm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-07-25Merge branch 'for-next/perf' into for-next/coreWill Deacon
* for-next/perf: drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX perf: RISC-V: Add of_node_put() when breaking out of for_each_of_cpu_node() docs: perf: Include hns3-pmu.rst in toctree to fix 'htmldocs' WARNING drivers/perf: hisi: add driver for HNS3 PMU drivers/perf: hisi: Add description for HNS3 PMU driver drivers/perf: riscv_pmu_sbi: perf format perf/arm-cci: Use the bitmap API to allocate bitmaps drivers/perf: riscv_pmu: Add riscv pmu pm notifier perf: hisi: Extract hisi_pmu_init perf/marvell_cn10k: Fix TAD PMU register offset perf/marvell_cn10k: Remove useless license text when SPDX-License-Identifier is already used arm64: cpufeature: Allow different PMU versions in ID_DFR0_EL1 perf/arm-cci: fix typo in comment drivers/perf:Directly use ida_alloc()/free() drivers/perf: Directly use ida_alloc()/free()
2022-07-25Merge branch 'for-next/mte' into for-next/coreWill Deacon
* for-next/mte: arm64: kasan: Revert "arm64: mte: reset the page tag in page->flags" mm: kasan: Skip page unpoisoning only if __GFP_SKIP_KASAN_UNPOISON mm: kasan: Skip unpoisoning of user pages mm: kasan: Ensure the tags are visible before the tag in page->flags
2022-07-25Merge branch 'for-next/mm' into for-next/coreWill Deacon
* for-next/mm: arm64: enable THP_SWAP for arm64
2022-07-25Merge branch 'for-next/kcsan' into for-next/coreWill Deacon
* for-next/kcsan: arm64: kcsan: Support detecting more missing memory barriers asm-generic: Add memory barrier dma_mb()
2022-07-25Merge branch irq/misc-5.20 into irq/irqchip-nextMarc Zyngier
* irq/misc-5.20: : . : Misc IRQ changes for 5.20: : : - Let irq_set_chip_handler_name_locked() take a const struct irq_chip * : : - Convert the ocelot irq_chip to being immutable (depends on the above) : : - Tidy-up the NOMAP irqdomain API variant : : - Teach action_show() to use for_each_action_of_desc() : : - Check ioremap() return value in the MIPS GIC driver : : - Move MMP driver init function declarations into the common .h : : - The obligatory typo fixes : . irqchip/mmp: Declare init functions in common header file irqchip/mips-gic: Check the return value of ioremap() in gic_of_init() genirq: Use for_each_action_of_desc in actions_show() irqdomain: Use hwirq_max instead of revmap_size for NOMAP domains irqdomain: Report irq number for NOMAP domains irqchip/gic-v3: Fix comment typo pinctrl: ocelot: Make irq_chip immutable genirq: Allow irq_set_chip_handler_name_locked() to take a const irq_chip Signed-off-by: Marc Zyngier <maz@kernel.org>
2022-07-25irqchip/mmp: Declare init functions in common header fileBen Dooks
The functions icu_init_irq and mmp2_init_icu are exported from this code, so declare them in the header file to avoid the following sparse warnings: drivers/irqchip/irq-mmp.c:248:13: warning: symbol 'icu_init_irq' was not declared. Should it be static? drivers/irqchip/irq-mmp.c:271:13: warning: symbol 'mmp2_init_icu' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben-linux@fluff.org> [maz: fixup commit message] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220724222152.551850-1-ben-linux@fluff.org
2022-07-24io_uring: add zc notification flush requestsPavel Begunkov
Overlay notification control onto IORING_OP_RSRC_UPDATE (former IORING_OP_FILES_UPDATE). It allows to flush a range of zc notifications from slots with indexes [sqe->off, sqe->off+sqe->len). If sqe->arg is not zero, it also copies sqe->arg as a new tag for all flushed notifications. Note, it doesn't flush a notification of a slot if there was no requests attached to it (since last flush or registration). Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/df13e2363400682a73dd9e71c3b990b8d1ff0333.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: rename IORING_OP_FILES_UPDATEPavel Begunkov
IORING_OP_FILES_UPDATE will be a more generic opcode serving different resource types, rename it into IORING_OP_RSRC_UPDATE and add subtype handling. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/0a907133907d9af3415a8a7aa1802c6aa97c03c6.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: flush notifiers after sendzcPavel Begunkov
Allow to flush notifiers as a part of sendzc request by setting IORING_SENDZC_FLUSH flag. When the sendzc request succeedes it will flush the used [active] notifier. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/e0b4d9a6797e2fd6092824fe42953db7a519bbc8.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: sendzc with fixed buffersPavel Begunkov
Allow zerocopy sends to use fixed buffers. There is an optimisation for this case, the network layer don't need to reference the pages, see SKBFL_MANAGED_FRAG_REFS, so io_uring have to ensure validity of fixed buffers until the notifier is released. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/e1d8bd1b5934e541d90c1824eb4020ae3f5f43f3.1657643355.git.asml.silence@gmail.com [axboe: fold in 32-bit pointer cast warning fix] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: allow to pass addr into sendzcPavel Begunkov
Allow to specify an address to zerocopy sends making it more like sendto(2). Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/70417a8f7c5b51ab454690bae08adc0c187f89e8.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: wire send zc request typePavel Begunkov
Add a new io_uring opcode IORING_OP_SENDZC. The main distinction from IORING_OP_SEND is that the user should specify a notification slot index in sqe::notification_idx and the buffers are safe to reuse only when the used notification is flushed and completes. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/a80387c6a68ce9cf99b3b6ef6f71068468761fb7.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: add notification slot registrationPavel Begunkov
Let the userspace to register and unregister notification slots. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/a0aa8161fe3ebb2a4cc6e5dbd0cffb96e6881cf5.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: cache struct io_notifPavel Begunkov
kmalloc'ing struct io_notif is too expensive when done frequently, cache them as many other resources in io_uring. Keep two list, the first one is from where we're getting notifiers, it's protected by ->uring_lock. The second is protected by ->completion_lock, to which we queue released notifiers. Then we splice one list into another when needed. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/9dec18f7fcbab9f4bd40b96e5ae158b119945230.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: add zc notification infrastructurePavel Begunkov
Add internal part of send zerocopy notifications. There are two main structures, the first one is struct io_notif, which carries inside struct ubuf_info and maps 1:1 to it. io_uring will be binding a number of zerocopy send requests to it and ask to complete (aka flush) it. When flushed and all attached requests and skbs complete, it'll generate one and only one CQE. There are intended to be passed into the network layer as struct msghdr::msg_ubuf. The second concept is notification slots. The userspace will be able to register an array of slots and subsequently addressing them by the index in the array. Slots are independent of each other. Each slot can have only one notifier at a time (called active notifier) but many notifiers during the lifetime. When active, a notifier not going to post any completion but the userspace can attach requests to it by specifying the corresponding slot while issueing send zc requests. Eventually, the userspace will want to "flush" the notifier losing any way to attach new requests to it, however it can use the next atomatically added notifier of this slot or of any other slot. When the network layer is done with all enqueued skbs attached to a notifier and doesn't need the specified in them user data, the flushed notifier will post a CQE. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/3ecf54c31a85762bf679b0a432c9f43ecf7e61cc.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24io_uring: export io_put_task()Pavel Begunkov
Make io_put_task() available to non-core parts of io_uring, we'll need it for notification infrastructure. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/3686807d4c03b72e389947b0e8692d4d44334ef0.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24Merge branch 'for-5.20/io_uring' into for-5.20/io_uring-zerocopy-sendJens Axboe
* for-5.20/io_uring: (716 commits) io_uring: ensure REQ_F_ISREG is set async offload net: fix compat pointer in get_compat_msghdr() io_uring: Don't require reinitable percpu_ref io_uring: fix types in io_recvmsg_multishot_overflow io_uring: Use atomic_long_try_cmpxchg in __io_account_mem io_uring: support multishot in recvmsg net: copy from user before calling __get_compat_msghdr net: copy from user before calling __copy_msghdr io_uring: support 0 length iov in buffer select in compat io_uring: fix multishot ending when not polled io_uring: add netmsg cache io_uring: impose max limit on apoll cache io_uring: add abstraction around apoll cache io_uring: move apoll cache to poll.c io_uring: consolidate hash_locked io-wq handling io_uring: clear REQ_F_HASH_LOCKED on hash removal io_uring: don't race double poll setting REQ_F_ASYNC_DATA io_uring: don't miss setting REQ_F_DOUBLE_POLL io_uring: disable multishot recvmsg io_uring: only trace one of complete or overflow ... Signed-off-by: Jens Axboe <axboe@kernel.dk>
generated by cgit (git 2.34.1) at 2025-04-05 15:11:32 +0000