pm24.git/include, branch v6.11-rc2

profiling: remove profile=sleep support

2024-08-04T20:36:28Z

The kernel sleep profile is no longer working due to a recursive locking bug introduced by commit 42a20f86dc19 ("sched: Add wrapper for get_wchan() to keep task blocked") Booting with the 'profile=sleep' kernel command line option added or executing # echo -n sleep > /sys/kernel/profiling after boot causes the system to lock up. Lockdep reports kthreadd/3 is trying to acquire lock: ffff93ac82e08d58 (&p->pi_lock){....}-{2:2}, at: get_wchan+0x32/0x70 but task is already holding lock: ffff93ac82e08d58 (&p->pi_lock){....}-{2:2}, at: try_to_wake_up+0x53/0x370 with the call trace being lock_acquire+0xc8/0x2f0 get_wchan+0x32/0x70 __update_stats_enqueue_sleeper+0x151/0x430 enqueue_entity+0x4b0/0x520 enqueue_task_fair+0x92/0x6b0 ttwu_do_activate+0x73/0x140 try_to_wake_up+0x213/0x370 swake_up_locked+0x20/0x50 complete+0x2f/0x40 kthread+0xfb/0x180 However, since nobody noticed this regression for more than two years, let's remove 'profile=sleep' support based on the assumption that nobody needs this functionality. Fixes: 42a20f86dc19 ("sched: Add wrapper for get_wchan() to keep task blocked") Cc: stable@vger.kernel.org # v5.16+ Signed-off-by: Tetsuo Handa Signed-off-by: Linus Torvalds

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2024-08-03T22:12:56Z

Pull SCSI fixes from James Bottomley: "One core change that reverts the double message print patch in sd.c (it was causing regressions on embedded systems). The rest are driver fixes in ufs, mpt3sas and mpi3mr" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: exynos: Don't resume FMP when crypto support is disabled scsi: mpt3sas: Avoid IOMMU page faults on REPORT ZONES scsi: mpi3mr: Avoid IOMMU page faults on REPORT ZONES scsi: ufs: core: Do not set link to OFF state while waking up from hibernation scsi: Revert "scsi: sd: Do not repeat the starting disk message" scsi: ufs: core: Fix deadlock during RTC update scsi: ufs: core: Bypass quick recovery if force reset is needed scsi: ufs: core: Check LSDBS cap when !mcq

runtime constants: deal with old decrepit linkers

2024-08-03T15:38:45Z

The runtime constants linker script depended on documented linker behavior [1]: "If an output section’s name is the same as the input section’s name and is representable as a C identifier, then the linker will automatically PROVIDE two symbols: __start_SECNAME and __stop_SECNAME, where SECNAME is the name of the section. These indicate the start address and end address of the output section respectively" to just automatically define the symbol names for the bounds of the runtime constant arrays. It turns out that this isn't actually something we can rely on, with old linkers not generating these automatic symbols. It looks to have been introduced in binutils-2.29 back in 2017, and we still support building with versions all the way back to binutils-2.25 (from 2015). And yes, Oleg actually seems to be using such ancient versions of binutils. So instead of depending on the implicit symbols from "section names match and are representable C identifiers", just do this all manually. It's not like it causes us any extra pain, we already have to do that for all the other sections that we use that often have special characters in them. Reported-and-tested-by: Oleg Nesterov Link: https://sourceware.org/binutils/docs/ld/Input-Section-Example.html [1] Link: https://lore.kernel.org/all/20240802114518.GA20924@redhat.com/ Signed-off-by: Linus Torvalds

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2024-08-02T17:17:49Z

Pull kvm updates from Paolo Bonzini: "The bulk of the changes here is a largish change to guest_memfd, delaying the clearing and encryption of guest-private pages until they are actually added to guest page tables. This started as "let's make it impossible to misuse the API" for SEV-SNP; but then it ballooned a bit. The new logic is generally simpler and more ready for hugepage support in guest_memfd. Summary: - fix latent bug in how usage of large pages is determined for confidential VMs - fix "underline too short" in docs - eliminate log spam from limited APIC timer periods - disallow pre-faulting of memory before SEV-SNP VMs are initialized - delay clearing and encrypting private memory until it is added to guest page tables - this change also enables another small cleanup: the checks in SNP_LAUNCH_UPDATE that limit it to non-populated, private pages can now be moved in the common kvm_gmem_populate() function - fix compilation error that the RISC-V merge introduced in selftests" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86/mmu: fix determination of max NPT mapping level for private pages KVM: riscv: selftests: Fix compile error KVM: guest_memfd: abstract how prepared folios are recorded KVM: guest_memfd: let kvm_gmem_populate() operate only on private gfns KVM: extend kvm_range_has_memory_attributes() to check subset of attributes KVM: cleanup and add shortcuts to kvm_range_has_memory_attributes() KVM: guest_memfd: move check for already-populated page to common code KVM: remove kvm_arch_gmem_prepare_needed() KVM: guest_memfd: make kvm_gmem_prepare_folio() operate on a single struct kvm KVM: guest_memfd: delay kvm_gmem_prepare_folio() until the memory is passed to the guest KVM: guest_memfd: return locked folio from __kvm_gmem_get_pfn KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_* KVM: guest_memfd: do not go through struct page KVM: guest_memfd: delay folio_mark_uptodate() until after successful preparation KVM: guest_memfd: return folio from __kvm_gmem_get_pfn() KVM: x86: disallow pre-fault for SNP VMs before initialization KVM: Documentation: Fix title underline too short warning KVM: x86: Eliminate log spam from limited APIC timer periods

Merge branch 'kvm-fixes' into HEAD

2024-08-02T16:33:43Z

* fix latent bug in how usage of large pages is determined for confidential VMs * fix "underline too short" in docs * eliminate log spam from limited APIC timer periods * disallow pre-faulting of memory before SEV-SNP VMs are initialized * delay clearing and encrypting private memory until it is added to guest page tables * this change also enables another small cleanup: the checks in SNP_LAUNCH_UPDATE that limit it to non-populated, private pages can now be moved in the common kvm_gmem_populate() function

Merge tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2024-08-02T16:33:35Z

Pull RISC-V fixes from Palmer Dabbelt: - A fix to avoid dropping some of the internal pseudo-extensions, which breaks *envcfg dependency parsing - The kernel entry address is now aligned in purgatory, which avoids a misaligned load that can lead to crash on systems that don't support misaligned accesses early in boot - The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of perf JSON configurations, one of them been updated to FW_SFENCE_VMA_ASID_SENT - The starfive cache driver is now restricted to 64-bit systems, as it isn't 32-bit clean - A fix for to avoid aliasing legacy-mode perf counters with software perf counters - VM_FAULT_SIGSEGV is now handled in the page fault code - A fix for stalls during CPU hotplug due to IPIs being disabled - A fix for memblock bounds checking. This manifests as a crash on systems with discontinuous memory maps that have regions that don't fit in the linear map * tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Fix linear mapping checks for non-contiguous memory regions RISC-V: Enable the IPI before workqueue_online_cpu() riscv/mm: Add handling for VM_FAULT_SIGSEGV in mm_fault_error() perf: riscv: Fix selecting counters in legacy mode cache: StarFive: Require a 64-bit system perf arch events: Fix duplicate RISC-V SBI firmware event name riscv/purgatory: align riscv_kernel_entry riscv: cpufeature: Do not drop Linux-internal extensions

Merge tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

2024-08-02T16:14:48Z

Pull asm-generic fixes from Arnd Bergmann: "These are three important bug fixes for the cross-architecture tree, fixing a regression with the new syscall.tbl file, the inconsistent numbering for the new uretprobe syscall and a bug with iowrite64be on alpha" * tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: syscalls: fix syscall macros for newfstat/newfstatat uretprobe: change syscall number, again alpha: fix ioread64be()/iowrite64be() helpers

Merge tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2024-08-02T16:04:57Z

Pull sound fixes from Takashi Iwai: "A small collection of fixes: - Revert of FireWire changes that caused a long-time regression - Another long-time regression fix for AMD HDMI - MIDI2 UMP fixes - HD-audio Conexant codec fixes and a quirk" * tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda: Conditionally use snooping for AMD HDMI ALSA: usb-audio: Correct surround channels in UAC1 channel map ALSA: seq: ump: Explicitly reset RPN with Null RPN ALSA: seq: ump: Transmit RPN/NRPN message at each MSB/LSB data reception ALSA: seq: ump: Use the common RPN/bank conversion context ALSA: ump: Explicitly reset RPN with Null RPN ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception Revert "ALSA: firewire-lib: operate for period elapse event in process context" Revert "ALSA: firewire-lib: obsolete workqueue for period update" ALSA: hda/realtek: Add quirk for Acer Aspire E5-574G ALSA: seq: ump: Optimize conversions from SysEx to UMP ALSA: hda/conexant: Mute speakers at suspend / shutdown ALSA: hda/generic: Add a helper to mute speakers at suspend/shutdown ALSA: hda: conexant: Fix headset auto detect fail in the polling mode

uretprobe: change syscall number, again

2024-08-02T13:18:49Z

Despite multiple attempts to get the syscall number assignment right for the newly added uretprobe syscall, we ended up with a bit of a mess: - The number is defined as 467 based on the assumption that the xattrat family of syscalls would use 463 through 466, but those did not make it into 6.11. - The include/uapi/asm-generic/unistd.h file still lists the number 463, but the new scripts/syscall.tbl that was supposed to have the same data lists 467 instead as the number for arc, arm64, csky, hexagon, loongarch, nios2, openrisc and riscv. None of these architectures actually provide a uretprobe syscall. - All the other architectures (powerpc, arm, mips, ...) don't list this syscall at all. There are two ways to make it consistent again: either list it with the same syscall number on all architectures, or only list it on x86 but not in scripts/syscall.tbl and asm-generic/unistd.h. Based on the most recent discussion, it seems like we won't need it anywhere else, so just remove the inconsistent assignment and instead move the x86 number to the next available one in the architecture specific range, which is 335. Fixes: 5c28424e9a34 ("syscalls: Fix to add sys_uretprobe to syscall.tbl") Fixes: 190fec72df4a ("uprobe: Wire up uretprobe system call") Fixes: 63ded110979b ("uprobe: Change uretprobe syscall scope and number") Acked-by: Masami Hiramatsu (Google) Reviewed-by: Jiri Olsa Signed-off-by: Arnd Bergmann

Merge tag 'net-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-08-01T16:42:09Z

Pull networking fixes from Paolo Abeni: "Including fixes from wireless, bleutooth, BPF and netfilter. Current release - regressions: - core: drop bad gso csum_start and offset in virtio_net_hdr - wifi: mt76: fix null pointer access in mt792x_mac_link_bss_remove - eth: tun: add missing bpf_net_ctx_clear() in do_xdp_generic() - phy: aquantia: only poll GLOBAL_CFG regs on aqr113, aqr113c and aqr115c Current release - new code bugs: - smc: prevent UAF in inet_create() - bluetooth: btmtk: fix kernel crash when entering btmtk_usb_suspend - eth: bnxt: reject unsupported hash functions Previous releases - regressions: - sched: act_ct: take care of padding in struct zones_ht_key - netfilter: fix null-ptr-deref in iptable_nat_table_init(). - tcp: adjust clamping window for applications specifying SO_RCVBUF Previous releases - always broken: - ethtool: rss: small fixes to spec and GET - mptcp: - fix signal endpoint re-add - pm: fix backup support in signal endpoints - wifi: ath12k: fix soft lockup on suspend - eth: bnxt_en: fix RSS logic in __bnxt_reserve_rings() - eth: ice: fix AF_XDP ZC timeout and concurrency issues - eth: mlx5: - fix missing lock on sync reset reload - fix error handling in irq_pool_request_irq" * tag 'net-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits) mptcp: fix duplicate data handling mptcp: fix bad RCVPRUNED mib accounting ipv6: fix ndisc_is_useropt() handling for PIO igc: Fix double reset adapter triggered from a single taprio cmd net: MAINTAINERS: Demote Qualcomm IPA to "maintained" net: wan: fsl_qmc_hdlc: Discard received CRC net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex net/mlx5e: Add a check for the return value from mlx5_port_set_eth_ptys net/mlx5e: Fix CT entry update leaks of modify header context net/mlx5e: Require mlx5 tc classifier action support for IPsec prio capability net/mlx5: Fix missing lock on sync reset reload net/mlx5: Lag, don't use the hardcoded value of the first port net/mlx5: DR, Fix 'stack guard page was hit' error in dr_rule net/mlx5: Fix error handling in irq_pool_request_irq net/mlx5: Always drain health in shutdown callback net: Add skbuff.h to MAINTAINERS r8169: don't increment tx_dropped in case of NETDEV_TX_BUSY netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init(). netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init(). net: drop bad gso csum_start and offset in virtio_net_hdr ...