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2022-07-23nfs: only issue commit in DIO codepath if we have uncommitted dataJeff Layton1-0/+1
Currently, we try to determine whether to issue a commit based on nfs_write_need_commit which looks at the current verifier. In the case where we got a short write and then tried to follow it up with one that failed, the verifier can't be trusted. What we really want to know is whether the pgio request had any successful writes that came back as UNSTABLE. Add a new flag to the pgio request, and use that to indicate that we've had a successful unstable write. Only issue a commit if that flag is set. Signed-off-by: Jeff Layton <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2022-07-23SUNRPC: Shrink size of struct rpc_taskTrond Myklebust1-2/+2
Move the field 'tk_rpc_status' so that we eliminate a 4 byte hole in the structure. For x86_64, this shrinks the size of the struct by 8 bytes. 'pahole' output before the change: /* size: 232, cachelines: 4, members: 27 */ /* sum members: 222, holes: 1, sum holes: 4 */ /* sum bitfield members: 8 bits (1 bytes) */ /* padding: 5 */ /* last cacheline: 40 bytes */ 'pahole' output after the change: /* size: 224, cachelines: 4, members: 27 */ /* padding: 1 */ /* last cacheline: 32 bytes */ Signed-off-by: Trond Myklebust <[email protected]>
2022-07-23Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-1/+1
Pull kvm fixes from Paolo Bonzini: - Check for invalid flags to KVM_CAP_X86_USER_SPACE_MSR - Fix use of sched_setaffinity in selftests - Sync kernel headers to tools - Fix KVM_STATS_UNIT_MAX * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Protect the unused bits in MSR exiting flags tools headers UAPI: Sync linux/kvm.h with the kernel sources KVM: selftests: Fix target thread to be migrated in rseq_test KVM: stats: Fix value for KVM_STATS_UNIT_MAX for boolean stats
2022-07-23cgroup: Make !percpu threadgroup_rwsem operations optionalTejun Heo1-3/+16
3942a9bd7b58 ("locking, rcu, cgroup: Avoid synchronize_sched() in __cgroup_procs_write()") disabled percpu operations on threadgroup_rwsem because the impiled synchronize_rcu() on write locking was pushing up the latencies too much for android which constantly moves processes between cgroups. This makes the hotter paths - fork and exit - slower as they're always forced into the slow path. There is no reason to force this on everyone especially given that more common static usage pattern can now completely avoid write-locking the rwsem. Write-locking is elided when turning on and off controllers on empty sub-trees and CLONE_INTO_CGROUP enables seeding a cgroup without grabbing the rwsem. Restore the default percpu operations and introduce the mount option "favordynmods" and config option CGROUP_FAVOR_DYNMODS for users who need lower latencies for the dynamic operations. Signed-off-by: Tejun Heo <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Michal Koutn� <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: John Stultz <[email protected]> Cc: Dmitry Shmidt <[email protected]> Cc: Oleg Nesterov <[email protected]>
2022-07-23vfio: Make vfio_unpin_pages() return voidNicolin Chen1-2/+2
There's only one caller that checks its return value with a WARN_ON_ONCE, while all other callers don't check the return value at all. Above that, an undo function should not fail. So, simplify the API to return void by embedding similar WARN_ONs. Also for users to pinpoint which condition fails, separate WARN_ON lines, yet remove the "driver->ops->unpin_pages" check, since it's unreasonable for callers to unpin on something totally random that wasn't even pinned. And remove NULL pointer checks for they would trigger oops vs. warnings. Note that npage is already validated in the vfio core, thus drop the same check in the type1 code. Suggested-by: Christoph Hellwig <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Reviewed-by: Kirti Wankhede <[email protected]> Tested-by: Terrence Xu <[email protected]> Signed-off-by: Nicolin Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alex Williamson <[email protected]>
2022-07-22ip_tunnels: allow VXLAN/GENEVE to inherit TOS/TTL from VLANMatthias May1-4/+8
The current code allows for VXLAN and GENEVE to inherit the TOS respective the TTL when skb-protocol is ETH_P_IP or ETH_P_IPV6. However when the payload is VLAN encapsulated, then this inheriting does not work, because the visible skb-protocol is of type ETH_P_8021Q or ETH_P_8021AD. Instead of skb->protocol use skb_protocol(). Signed-off-by: Matthias May <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-07-22Merge tag 'for-net-next-2022-07-22' of ↵Jakub Kicinski6-40/+518
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Luiz Augusto von Dentz says: ==================== bluetooth-next pull request for net-next: - Add support for IM Networks PID 0x3568 - Add support for BCM4349B1 - Add support for CYW55572 - Add support for MT7922 VID/PID 0489/e0e2 - Add support for Realtek RTL8852C - Initial support for Isochronous Channels/ISO sockets - Remove HCI_QUIRK_BROKEN_ERR_DATA_REPORTING quirk * tag 'for-net-next-2022-07-22' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next: (58 commits) Bluetooth: btusb: Detect if an ACL packet is in fact an ISO packet Bluetooth: btusb: Add support for ISO packets Bluetooth: ISO: Add broadcast support Bluetooth: Add initial implementation of BIS connections Bluetooth: Add BTPROTO_ISO socket type Bluetooth: Add initial implementation of CIS connections Bluetooth: hci_core: Introduce hci_recv_event_data Bluetooth: Convert delayed discov_off to hci_sync Bluetooth: Remove update_scan hci_request dependancy Bluetooth: Remove dead code from hci_request.c Bluetooth: btrtl: Fix typo in comment Bluetooth: MGMT: Fix holding hci_conn reference while command is queued Bluetooth: mgmt: Fix using hci_conn_abort Bluetooth: Use bt_status to convert from errno Bluetooth: Add bt_status Bluetooth: hci_sync: Split hci_dev_open_sync Bluetooth: hci_sync: Refactor remove Adv Monitor Bluetooth: hci_sync: Refactor add Adv Monitor Bluetooth: hci_sync: Remove HCI_QUIRK_BROKEN_ERR_DATA_REPORTING Bluetooth: btusb: Remove HCI_QUIRK_BROKEN_ERR_DATA_REPORTING for fake CSR ... ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-07-22Bluetooth: ISO: Add broadcast supportLuiz Augusto von Dentz2-0/+13
This adds broadcast support for BTPROTO_ISO by extending the sockaddr_iso with a new struct sockaddr_iso_bc where the socket user can set the broadcast address when receiving, the SID and the BIS indexes it wants to synchronize. When using BTPROTO_ISO for broadcast the roles are: Broadcaster -> uses connect with address set to BDADDR_ANY: > tools/isotest -s 00:00:00:00:00:00 Broadcast Receiver -> uses listen with address set to broadcaster: > tools/isotest -d 00:AA:01:00:00:00 Signed-off-by: Luiz Augusto von Dentz <[email protected]>
2022-07-22Bluetooth: Add initial implementation of BIS connectionsLuiz Augusto von Dentz4-20/+261
This adds initial support for BIS/BIG which includes: == Broadcaster role: Setup a periodic advertising and create a BIG == > tools/isotest -s 00:00:00:00:00:00 isotest[63]: Connected [00:00:00:00:00:00] isotest[63]: QoS BIG 0x00 BIS 0x00 Packing 0x00 Framing 0x00] isotest[63]: Output QoS [Interval 10000 us Latency 10 ms SDU 40 PHY 0x02 RTN 2] isotest[63]: Sending ... isotest[63]: Number of packets: 1 isotest[63]: Socket jitter buffer: 80 buffer < HCI Command: LE Set Perio.. (0x08|0x003e) plen 7 ... > HCI Event: Command Complete (0x0e) plen 4 LE Set Periodic Advertising Parameters (0x08|0x003e) ncmd 1 Status: Success (0x00) < HCI Command: LE Set Perio.. (0x08|0x003f) plen 7 ... > HCI Event: Command Complete (0x0e) plen 4 LE Set Periodic Advertising Data (0x08|0x003f) ncmd 1 Status: Success (0x00) < HCI Command: LE Set Perio.. (0x08|0x0040) plen 2 ... > HCI Event: Command Complete (0x0e) plen 4 LE Set Periodic Advertising Enable (0x08|0x0040) ncmd 1 Status: Success (0x00) < HCI Command: LE Create B.. (0x08|0x0068) plen 31 ... > HCI Event: Command Status (0x0f) plen 4 LE Create Broadcast Isochronous Group (0x08|0x0068) ncmd 1 Status: Success (0x00) > HCI Event: LE Meta Event (0x3e) plen 21 LE Broadcast Isochronous Group Complete (0x1b) ... == Broadcast Receiver role: Create a PA Sync and BIG Sync == > tools/isotest -i hci1 -d 00:AA:01:00:00:00 isotest[66]: Waiting for connection 00:AA:01:00:00:00... < HCI Command: LE Periodic Advert.. (0x08|0x0044) plen 14 ... > HCI Event: Command Status (0x0f) plen 4 LE Periodic Advertising Create Sync (0x08|0x0044) ncmd 1 Status: Success (0x00) < HCI Command: LE Set Extended Sca.. (0x08|0x0041) plen 8 ... > HCI Event: Command Complete (0x0e) plen 4 LE Set Extended Scan Parameters (0x08|0x0041) ncmd 1 Status: Success (0x00) < HCI Command: LE Set Extended Sca.. (0x08|0x0042) plen 6 ... > HCI Event: Command Complete (0x0e) plen 4 LE Set Extended Scan Enable (0x08|0x0042) ncmd 1 Status: Success (0x00) > HCI Event: LE Meta Event (0x3e) plen 29 LE Extended Advertising Report (0x0d) ... > HCI Event: LE Meta Event (0x3e) plen 16 LE Periodic Advertising Sync Established (0x0e) ... < HCI Command: LE Broadcast Isoch.. (0x08|0x006b) plen 25 ... > HCI Event: Command Status (0x0f) plen 4 LE Broadcast Isochronous Group Create Sync (0x08|0x006b) ncmd 1 Status: Success (0x00) > HCI Event: LE Meta Event (0x3e) plen 17 LE Broadcast Isochronous Group Sync Estabilished (0x1d) ... Signed-off-by: Luiz Augusto von Dentz <[email protected]>
2022-07-22Bluetooth: Add BTPROTO_ISO socket typeLuiz Augusto von Dentz3-2/+58
This introduces a new socket type BTPROTO_ISO which can be enabled with use of ISO Socket experiemental UUID, it can used to initiate/accept connections and transfer packets between userspace and kernel similarly to how BTPROTO_SCO works: Central -> uses connect with address set to destination bdaddr: > tools/isotest -s 00:AA:01:00:00:00 Peripheral -> uses listen: > tools/isotest -d Signed-off-by: Luiz Augusto von Dentz <[email protected]>
2022-07-22Bluetooth: Add initial implementation of CIS connectionsLuiz Augusto von Dentz5-4/+169
This adds the initial implementation of CIS connections and introduces the ISO packets/links. == Central: Set CIG Parameters, create a CIS and Setup Data Path == > tools/isotest -s <address> < HCI Command: LE Extended Create... (0x08|0x0043) plen 26 ... > HCI Event: Command Status (0x0f) plen 4 LE Extended Create Connection (0x08|0x0043) ncmd 1 Status: Success (0x00) > HCI Event: LE Meta Event (0x3e) plen 31 LE Enhanced Connection Complete (0x0a) ... < HCI Command: LE Create Connected... (0x08|0x0064) plen 5 ... > HCI Event: Command Status (0x0f) plen 4 LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1 Status: Success (0x00) > HCI Event: LE Meta Event (0x3e) plen 29 LE Connected Isochronous Stream Established (0x19) ... < HCI Command: LE Setup Isochronou.. (0x08|0x006e) plen 13 ... > HCI Event: Command Complete (0x0e) plen 6 LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1 Status: Success (0x00) Handle: 257 < HCI Command: LE Setup Isochronou.. (0x08|0x006e) plen 13 ... > HCI Event: Command Complete (0x0e) plen 6 LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1 Status: Success (0x00) Handle: 257 == Peripheral: Accept CIS and Setup Data Path == > tools/isotest -d HCI Event: LE Meta Event (0x3e) plen 7 LE Connected Isochronous Stream Request (0x1a) ... < HCI Command: LE Accept Co.. (0x08|0x0066) plen 2 ... > HCI Event: LE Meta Event (0x3e) plen 29 LE Connected Isochronous Stream Established (0x19) ... < HCI Command: LE Setup Is.. (0x08|0x006e) plen 13 ... > HCI Event: Command Complete (0x0e) plen 6 LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1 Status: Success (0x00) Handle: 257 < HCI Command: LE Setup Is.. (0x08|0x006e) plen 13 ... > HCI Event: Command Complete (0x0e) plen 6 LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1 Status: Success (0x00) Handle: 257 Signed-off-by: Luiz Augusto von Dentz <[email protected]>
2022-07-22Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski10-38/+227
Daniel Borkmann says: ==================== bpf-next 2022-07-22 We've added 73 non-merge commits during the last 12 day(s) which contain a total of 88 files changed, 3458 insertions(+), 860 deletions(-). The main changes are: 1) Implement BPF trampoline for arm64 JIT, from Xu Kuohai. 2) Add ksyscall/kretsyscall section support to libbpf to simplify tracing kernel syscalls through kprobe mechanism, from Andrii Nakryiko. 3) Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function, from Song Liu & Jiri Olsa. 4) Add new kfunc infrastructure for netfilter's CT e.g. to insert and change entries, from Kumar Kartikeya Dwivedi & Lorenzo Bianconi. 5) Add a ksym BPF iterator to allow for more flexible and efficient interactions with kernel symbols, from Alan Maguire. 6) Bug fixes in libbpf e.g. for uprobe binary path resolution, from Dan Carpenter. 7) Fix BPF subprog function names in stack traces, from Alexei Starovoitov. 8) libbpf support for writing custom perf event readers, from Jon Doron. 9) Switch to use SPDX tag for BPF helper man page, from Alejandro Colomar. 10) Fix xsk send-only sockets when in busy poll mode, from Maciej Fijalkowski. 11) Reparent BPF maps and their charging on memcg offlining, from Roman Gushchin. 12) Multiple follow-up fixes around BPF lsm cgroup infra, from Stanislav Fomichev. 13) Use bootstrap version of bpftool where possible to speed up builds, from Pu Lehui. 14) Cleanup BPF verifier's check_func_arg() handling, from Joanne Koong. 15) Make non-prealloced BPF map allocations low priority to play better with memcg limits, from Yafang Shao. 16) Fix BPF test runner to reject zero-length data for skbs, from Zhengchao Shao. 17) Various smaller cleanups and improvements all over the place. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (73 commits) bpf: Simplify bpf_prog_pack_[size|mask] bpf: Support bpf_trampoline on functions with IPMODIFY (e.g. livepatch) bpf, x64: Allow to use caller address from stack ftrace: Allow IPMODIFY and DIRECT ops on the same function ftrace: Add modify_ftrace_direct_multi_nolock bpf/selftests: Fix couldn't retrieve pinned program in xdp veth test bpf: Fix build error in case of !CONFIG_DEBUG_INFO_BTF selftests/bpf: Fix test_verifier failed test in unprivileged mode selftests/bpf: Add negative tests for new nf_conntrack kfuncs selftests/bpf: Add tests for new nf_conntrack kfuncs selftests/bpf: Add verifier tests for trusted kfunc args net: netfilter: Add kfuncs to set and change CT status net: netfilter: Add kfuncs to set and change CT timeout net: netfilter: Add kfuncs to allocate and insert CT net: netfilter: Deduplicate code in bpf_{xdp,skb}_ct_lookup bpf: Add documentation for kfuncs bpf: Add support for forcing kfunc args to be trusted bpf: Switch to new kfunc flags infrastructure tools/resolve_btfids: Add support for 8-byte BTF sets bpf: Introduce 8-byte BTF set ... ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-07-22asm-generic: Add new pci.h and use itStafford Horne1-0/+30
The asm/pci.h used for many newer architectures share similar definitions. Move the common parts to asm-generic/pci.h to allow for sharing code. Suggested-by: Arnd Bergmann <[email protected]> Link: https://lore.kernel.org/lkml/CAK8P3a0JmPeczfmMBE__vn=Jbvf=nkbpVaZCycyv40pZNCJJXQ@mail.gmail.com/ Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Stafford Horne <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]> Acked-by: Pierre Morel <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]>
2022-07-22PCI: Move isa_dma_bridge_buggy out of asm/dma.hStafford Horne1-0/+14
The isa_dma_bridge_buggy symbol is only used for x86_32, and only x86_32 platforms or quirks ever set it. Add a new linux/isa-dma.h header that #defines isa_dma_bridge_buggy to 0 except on x86_32, where we keep it as a variable, and remove all the arch- specific definitions. [bhelgaas: commit log] Suggested-by: Arnd Bergmann <[email protected]> Suggested-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Stafford Horne <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]>
2022-07-22PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.hStafford Horne1-17/+0
pci_get_legacy_ide_irq() is only used on platforms that support PNP, so many architectures define it but never use it. Replace uses of it with ATA_PRIMARY_IRQ() and ATA_SECONDARY_IRQ(), which provide the same functionality. Since pci_get_legacy_ide_irq() is no longer used, remove all the architecture-specific definitions of it as well as asm-generic/pci.h, which only provides pci_get_legacy_ide_irq() [bhelgaas: commit log] Co-developed-by: Arnd Bergmann <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Stafford Horne <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Acked-by: Pierre Morel <[email protected]> Acked-by: Rafael J. Wysocki <[email protected]>
2022-07-22Revert "tcp: change pingpong threshold to 3"Wei Wang1-9/+1
This reverts commit 4a41f453bedfd5e9cd040bad509d9da49feb3e2c. This to-be-reverted commit was meant to apply a stricter rule for the stack to enter pingpong mode. However, the condition used to check for interactive session "before(tp->lsndtime, icsk->icsk_ack.lrcvtime)" is jiffy based and might be too coarse, which delays the stack entering pingpong mode. We revert this patch so that we no longer use the above condition to determine interactive session, and also reduce pingpong threshold to 1. Fixes: 4a41f453bedf ("tcp: change pingpong threshold to 3") Reported-by: LemmyHuang <[email protected]> Suggested-by: Neal Cardwell <[email protected]> Signed-off-by: Wei Wang <[email protected]> Acked-by: Neal Cardwell <[email protected]> Reviewed-by: Eric Dumazet <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-07-22PCI: Extend isolated function probing to s390Niklas Schnelle1-0/+8
Like the jailhouse hypervisor, s390's PCI architecture allows passing isolated PCI functions to a guest OS instance. As of now this is was not utilized even with multi-function support as the s390 PCI code makes sure that only virtual PCI busses including a function with devfn 0 are presented to the PCI subsystem. A subsequent change will remove this restriction. Allow probing such functions by replacing the existing check for jailhouse_paravirt() with a new hypervisor_isolated_pci_functions() helper. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Niklas Schnelle <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Pierre Morel <[email protected]> Cc: Jan Kiszka <[email protected]>
2022-07-22Bluetooth: hci_core: Introduce hci_recv_event_dataLuiz Augusto von Dentz1-0/+2
This introduces hci_recv_event_data to make it simpler to access the contents of last received event rather than having to pass its contents to the likes of *_ind/*_cfm callbacks. Signed-off-by: Luiz Augusto von Dentz <[email protected]>
2022-07-22bpf: Support bpf_trampoline on functions with IPMODIFY (e.g. livepatch)Song Liu1-0/+8
When tracing a function with IPMODIFY ftrace_ops (livepatch), the bpf trampoline must follow the instruction pointer saved on stack. This needs extra handling for bpf trampolines with BPF_TRAMP_F_CALL_ORIG flag. Implement bpf_tramp_ftrace_ops_func and use it for the ftrace_ops used by BPF trampoline. This enables tracing functions with livepatch. This also requires moving bpf trampoline to *_ftrace_direct_mult APIs. Signed-off-by: Song Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/all/[email protected]/ Link: https://lore.kernel.org/bpf/[email protected]
2022-07-22bpf, x64: Allow to use caller address from stackJiri Olsa1-0/+5
Currently we call the original function by using the absolute address given at the JIT generation. That's not usable when having trampoline attached to multiple functions, or the target address changes dynamically (in case of live patch). In such cases we need to take the return address from the stack. Adding support to retrieve the original function address from the stack by adding new BPF_TRAMP_F_ORIG_STACK flag for arch_prepare_bpf_trampoline function. Basically we take the return address of the 'fentry' call: function + 0: call fentry # stores 'function + 5' address on stack function + 5: ... The 'function + 5' address will be used as the address for the original function to call. Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: Song Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2022-07-22ftrace: Allow IPMODIFY and DIRECT ops on the same functionSong Liu1-0/+38
IPMODIFY (livepatch) and DIRECT (bpf trampoline) ops are both important users of ftrace. It is necessary to allow them work on the same function at the same time. First, DIRECT ops no longer specify IPMODIFY flag. Instead, DIRECT flag is handled together with IPMODIFY flag in __ftrace_hash_update_ipmodify(). Then, a callback function, ops_func, is added to ftrace_ops. This is used by ftrace core code to understand whether the DIRECT ops can share with an IPMODIFY ops. To share with IPMODIFY ops, the DIRECT ops need to implement the callback function and adjust the direct trampoline accordingly. If DIRECT ops is attached before the IPMODIFY ops, ftrace core code calls ENABLE_SHARE_IPMODIFY_PEER on the DIRECT ops before registering the IPMODIFY ops. If IPMODIFY ops is attached before the DIRECT ops, ftrace core code calls ENABLE_SHARE_IPMODIFY_SELF in __ftrace_hash_update_ipmodify. Owner of the DIRECT ops may return 0 if the DIRECT trampoline can share with IPMODIFY, so error code otherwise. The error code is propagated to register_ftrace_direct_multi so that onwer of the DIRECT trampoline can handle it properly. For more details, please refer to comment before enum ftrace_ops_cmd. Signed-off-by: Song Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Steven Rostedt (Google) <[email protected]> Link: https://lore.kernel.org/all/[email protected]/ Link: https://lore.kernel.org/all/[email protected]/ Link: https://lore.kernel.org/bpf/[email protected]
2022-07-22ftrace: Add modify_ftrace_direct_multi_nolockSong Liu1-0/+5
This is similar to modify_ftrace_direct_multi, but does not acquire direct_mutex. This is useful when direct_mutex is already locked by the user. Signed-off-by: Song Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Steven Rostedt (Google) <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2022-07-22Bluetooth: Remove update_scan hci_request dependancyBrian Gix2-1/+1
This removes the remaining calls to HCI_OP_WRITE_SCAN_ENABLE from hci_request call chains, and converts them to hci_sync calls. Signed-off-by: Brian Gix <[email protected]> Signed-off-by: Luiz Augusto von Dentz <[email protected]>
2022-07-22Bluetooth: Remove dead code from hci_request.cBrian Gix1-1/+0
The discov_update work queue is no longer used as a result of the hci_sync rework. The __hci_req_hci_power_on() function is no longer referenced in the code as a result of the hci_sync rework. Signed-off-by: Brian Gix <[email protected]> Signed-off-by: Luiz Augusto von Dentz <[email protected]>
2022-07-22Merge tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-2/+2
Pull drm fixes from Dave Airlie: "Fixes for this week. The main one is the i915 firmware fix for the phoronix reported issue. I've written some firmware guidelines as a result, should land in -next soon. Otherwise a few amdgpu fixes, a scheduler fix, ttm fix and two other minor ones. scheduler: - scheduling while atomic fix ttm: - locking fix edp: - variable typo fix i915: - add back support for v69 firmware on ADL-P amdgpu: - Drop redundant buffer cleanup that can lead to a segfault - Add a bo_list mutex to avoid possible list corruption in CS - dmub notification fix imx: - fix error path" * tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drm: drm/amdgpu: Protect the amdgpu_bo_list list with a mutex v2 drm/imx/dcss: Add missing of_node_put() in fail path drm/i915/guc: support v69 in parallel to v70 drm/i915/guc: Support programming the EU priority in the GuC descriptor drm/panel-edp: Fix variable typo when saving hpd absent delay from DT drm/amdgpu: Remove one duplicated ef removal drm/ttm: fix locking in vmap/vunmap TTM GEM helpers drm/scheduler: Don't kill jobs in interrupt context drm/amd/display: Fix new dmub notification enabling in DM
2022-07-22iomap: remove iomap_writepageChristoph Hellwig1-3/+0
Unused now. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Damien Le Moal <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2022-07-22mmu_gather: fix the CONFIG_MMU_GATHER_NO_RANGE caseLinus Torvalds1-3/+0
Sudip reports that alpha doesn't build properly, with errors like include/asm-generic/tlb.h:401:1: error: redefinition of 'tlb_update_vma_flags' 401 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma) | ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/tlb.h:372:1: note: previous definition of 'tlb_update_vma_flags' with type 'void(struct mmu_gather *, struct vm_area_struct *)' 372 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma) { } the cause being that We have this odd situation where some architectures were never converted to the newer TLB flushing interfaces that have a range for the flush. Instead people left them alone, and we have them select the MMU_GATHER_NO_RANGE config option to make the tlb header files account for this. Peter Zijlstra cleaned some of these nasty header file games up in commits 1e9fdf21a433 ("mmu_gather: Remove per arch tlb_{start,end}_vma()") 18ba064e42df ("mmu_gather: Let there be one tlb_{start,end}_vma() implementation") but tlb_update_vma_flags() was left alone, and then commit b67fbebd4cf9 ("mmu_gather: Force tlb-flush VM_PFNMAP vmas") ended up removing only _one_ of the two stale duplicate dummy inline functions. This removes the other stale one. Somebody braver than me should try to remove MMU_GATHER_NO_RANGE entirely, but it requires fixing up the oddball architectures that use it: alpha, m68k, microblaze, nios2 and openrisc. The fixups should be fairly straightforward ("fix the build errors it exposes by adding the appropriate range arguments"), but the reason this wasn't done in the first place is that so few people end up working on those architectures. But it could be done one architecture at a time, hint, hint. Reported-by: Sudip Mukherjee (Codethink) <[email protected]> Fixes: b67fbebd4cf9 ("mmu_gather: Force tlb-flush VM_PFNMAP vmas") Link: https://lore.kernel.org/all/YtpXh0QHWwaEWVAY@debian/ Cc: Peter Zijlstra <[email protected]> Cc: Will Deacon <[email protected]> Cc: "Aneesh Kumar K.V" <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Nick Piggin <[email protected]> Cc: Arnd Bergmann <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2022-07-22bpf: Fix build error in case of !CONFIG_DEBUG_INFO_BTFKumar Kartikeya Dwivedi1-2/+2
BTF_ID_FLAGS macro needs to be able to take 0 or 1 args, so make it a variable argument. BTF_SET8_END is incorrect, it should just be empty. Reported-by: kernel test robot <[email protected]> Fixes: ab21d6063c01 ("bpf: Introduce 8-byte BTF set") Signed-off-by: Kumar Kartikeya Dwivedi <[email protected]> Acked-by: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2022-07-22ublk_drv: make sure that correct flags(features) returned to userspaceMing Lei1-3/+4
Userspace may support more features or new added flags, but the driver side can be old, so make sure correct flags(features) returned to userpsace, then userspace can work as expected. Also mark the 2nd flags as reversed, just use the 1st one. When we run out of flags, the reserved one can be handled at that time. Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: ZiyangZhang <[email protected]> Signed-off-by: Ming Lei <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2022-07-22RDMA: Fix comment typoXin Gao1-1/+1
The double `get' is duplicated, remove one. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Xin Gao <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2022-07-22asm-generic: remove a broken and needless ifdef conditionalLukas Bulwahn1-2/+0
Commit 527701eda5f1 ("lib: Add a generic version of devmem_is_allowed()") introduces the config symbol GENERIC_LIB_DEVMEM_IS_ALLOWED, but then falsely refers to CONFIG_GENERIC_DEVMEM_IS_ALLOWED (note the missing LIB in the reference) in ./include/asm-generic/io.h. Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs: GENERIC_DEVMEM_IS_ALLOWED Referencing files: include/asm-generic/io.h The actual fix, though, is simply to not to make this function declaration dependent on any kernel config. For architectures that intend to use the generic version, the arch's 'select GENERIC_LIB_DEVMEM_IS_ALLOWED' will lead to picking the function definition, and for other architectures, this function is simply defined elsewhere. The wrong '#ifndef' on a non-existing config symbol also always had the same effect (although more by mistake than by intent). So, there is no functional change. Remove this broken and needless ifdef conditional. Fixes: 527701eda5f1 ("lib: Add a generic version of devmem_is_allowed()") Signed-off-by: Lukas Bulwahn <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2022-07-22firmware: cs_dsp: Add memory chunk helpersCharles Keepax1-0/+73
Add helpers that can be layered on top of a buffer read from or to be written to the DSP to faciliate accessing datastructures within the DSP memory. These functions handle adding the padding bytes for the DSP, converting to big endian, and packing arbitrary length data. Signed-off-by: Charles Keepax <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
2022-07-22firmware: cs_dsp: Add pre_stop callbackCharles Keepax1-1/+3
The code already has a post_stop callback, add a matching pre_stop callback to the client_ops that is called before execution is stopped. This callback provides a convenient place for the client code to communicate with the DSP before it is stopped. Signed-off-by: Charles Keepax <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
2022-07-22wifi: mac80211: add macros to loop over active linksGregory Greenman1-0/+15
Add a preliminary version which will be updated later to loop over vif's and sta's active links. Signed-off-by: Gregory Greenman <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: mac80211: optionally implement MLO multicast TXJohannes Berg1-0/+10
For drivers using software encryption for multicast TX, such as mac80211_hwsim, mac80211 needs to duplicate the multicast frames on each link, if MLO is enabled. Do this, but don't just make it dependent on the key but provide a separate flag for drivers to opt out of this. This is not very efficient, I expect that drivers will do it in firmware/hardware or at least with DMA engine assistence, so this is mostly for hwsim. To make this work, also implement the SNS11 sequence number space that an AP MLD shall have, and modify the API to the __ieee80211_subif_start_xmit() function to always require the link ID bits to be set. Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: mac80211: expand ieee80211_mgmt_tx() for MLOJohannes Berg1-1/+3
There are a couple of new things that should be possible with MLO: * selecting the link to transmit to a station by link ID, which a previous patch added to the nl80211 API * selecting the link by frequency, similarly * allowing transmittion to an MLD without specifying any channel or link ID, with MLD addresses Enable these use cases. Also fix the address comparison in client mode to use the AP (MLD) address. Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: nl80211: add MLO link ID to the NL80211_CMD_FRAME TX APIJohannes Berg2-0/+8
Allow optionally specifying the link ID to transmit on, which can be done instead of the link frequency, on an MLD addressed frame. Both can also be omitted in which case the frame must be MLD addressed and link selection (and address translation) will be done on lower layers. Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: cfg80211: report link ID in NL80211_CMD_FRAMEJohannes Berg1-0/+5
If given by the underlying driver, report the link ID for MLO in NL80211_CMD_FRAME. Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: mac80211: add hardware timestamps for RX and TXAvraham Stern1-1/+27
When the low level driver reports hardware timestamps for frame TX status or frame RX, pass the timestamps to cfg80211. Signed-off-by: Avraham Stern <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: cfg80211: add hardware timestamps to frame RX infoAvraham Stern1-0/+4
Add hardware timestamps to management frame RX info. This shall be used by drivers that support hardware timestamping for Timing measurement and Fine timing measurement action frames RX. Signed-off-by: Avraham Stern <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: cfg80211/nl80211: move rx management data into a structAvraham Stern1-4/+56
The functions for reporting rx management take many arguments. Collect all the arguments into a struct, which also make it easier to add more arguments if needed. Signed-off-by: Avraham Stern <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: cfg80211: add a function for reporting TX status with hardware timestampsAvraham Stern1-2/+45
Add a function for reporting TX status with hardware timestamps. This function shall be used for reporting the TX status of Timing measurement and Fine timing measurement action frames by devices that support reporting hardware timestamps. Signed-off-by: Avraham Stern <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: nl80211: add RX and TX timestamp attributesAvraham Stern1-1/+21
Add attributes for reporting hardware timestamps for management frames RX and TX. These attributes will be used for reporting hardware timestamps for Timing measurement and Fine Timing Measurement action frames, which will allow userspace applications to measure the path delay between devices and sync clocks. For TX, these attributes are used for reporting the frame RX time and the ack TX time. For TX, they are used for reporting the frame TX time and the ack RX time. Signed-off-by: Avraham Stern <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: ieee80211: add helper functions for detecting TM/FTM framesAvraham Stern1-0/+54
Add helper functions for detection timing measurement and fine timing measurement frames. Signed-off-by: Avraham Stern <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-22wifi: nl80211/mac80211: clarify link ID in control port TXJohannes Berg1-0/+6
Clarify the link ID behaviour in control port TX, we need it to select the link to transmit on for both MLD and non-MLD receivers, but select the link address as the SA only if the receiver is not an MLD. Fixes: 67207bab9341 ("wifi: cfg80211/mac80211: Support control port TX from specific link") Signed-off-by: Johannes Berg <[email protected]>
2022-07-22net: add missing includes and forward declarations under net/Jakub Kicinski63-11/+183
This patch adds missing includes to headers under include/net. All these problems are currently masked by the existing users including the missing dependency before the broken header. Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-07-22tcp: Fix a data-race around sysctl_tcp_adv_win_scale.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_adv_win_scale, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-07-22Merge tag 'kvm-s390-next-5.20-1' of ↵Paolo Bonzini4-2/+52
https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390x: Fixes and features for 5.20 * First part of deferred teardown * CPU Topology * interpretive execution for PCI instructions * PV attestation * Minor fixes
2022-07-22Merge tag 'drm-intel-gt-next-2022-07-13' of ↵Dave Airlie2-90/+320
git://anongit.freedesktop.org/drm/drm-intel into drm-next Driver uAPI changes: - All related to the Small BAR support: (and all by Matt Auld) * add probed_cpu_visible_size * expose the avail memory region tracking * apply ALLOC_GPU only by default * add NEEDS_CPU_ACCESS hint * tweak error capture on recoverable contexts Driver highlights: - Add Small BAR support (Matt) - Add MeteorLake support (RK) - Add support for LMEM PCIe resizable BAR (Akeem) Driver important fixes: - ttm related fixes (Matt Auld) - Fix a performance regression related to waitboost (Chris) - Fix GT resets (Chris) Driver others: - Adding GuC SLPC selftest (Vinay) - Fix ADL-N GuC load (Daniele) - Add platform workaround (Gustavo, Matt Roper) - DG2 and ATS-M device ID updates (Matt Roper) - Add VM_BIND doc rfc with uAPI documentation (Niranjana) - Fix user-after-free in vma destruction (Thomas) - Async flush of GuC log regions (Alan) - Fixes in selftests (Chris, Dan, Andrzej) - Convert to drm_dbg (Umesh) - Disable OA sseu config param for newer hardware (Umesh) - Multi-cast register steering changes (Matt Roper) - Add lmem_bar_size modparam (Priyanka) Signed-off-by: Dave Airlie <[email protected]> From: Rodrigo Vivi <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/Ys85pcMYLkqF/[email protected]
2022-07-21net: netfilter: Add kfuncs to set and change CT statusLorenzo Bianconi1-0/+2
Introduce bpf_ct_set_status and bpf_ct_change_status kfunc helpers in order to set nf_conn field of allocated entry or update nf_conn status field of existing inserted entry. Use nf_ct_change_status_common to share the permitted status field changes between netlink and BPF side by refactoring ctnetlink_change_status. It is required to introduce two kfuncs taking nf_conn___init and nf_conn instead of sharing one because KF_TRUSTED_ARGS flag causes strict type checking. This would disallow passing nf_conn___init to kfunc taking nf_conn, and vice versa. We cannot remove the KF_TRUSTED_ARGS flag as we only want to accept refcounted pointers and not e.g. ct->master. Hence, bpf_ct_set_* kfuncs are meant to be used on allocated CT, and bpf_ct_change_* kfuncs are meant to be used on inserted or looked up CT entry. Signed-off-by: Lorenzo Bianconi <[email protected]> Co-developed-by: Kumar Kartikeya Dwivedi <[email protected]> Signed-off-by: Kumar Kartikeya Dwivedi <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
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