1. 15 Jul, 2024 2 commits
  2. 10 Jul, 2024 1 commit
  3. 08 Jul, 2024 1 commit
  4. 04 Jul, 2024 2 commits
  5. 30 Jun, 2024 16 commits
    • Linus Torvalds's avatar
      Linux 6.10-rc6 · 22a40d14
      Linus Torvalds authored
      22a40d14
    • Linus Torvalds's avatar
      Merge tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux · aca7c377
      Linus Torvalds authored
      Pull ata fixes from Niklas Cassel:
      
       - Add NOLPM quirk for for all Crucial BX SSD1 models.
      
         Considering that we now have had bug reports for 3 different BX SSD1
         variants from Crucial with the same product name, make the quirk more
         inclusive, to catch more device models from the same generation.
      
       - Fix a trivial NULL pointer dereference in the error path for
         ata_host_release().
      
       - Create a ata_port_free(), so that we don't miss freeing ata_port
         struct members when freeing a struct ata_port.
      
       - Fix a trivial double free in the error path for ata_host_alloc().
      
       - Ensure that we remove the libata "remapped NVMe device count" sysfs
         entry on .probe() error.
      
      * tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
        ata: ahci: Clean up sysfs file on error
        ata: libata-core: Fix double free on error
        ata,scsi: libata-core: Do not leak memory for ata_port struct members
        ata: libata-core: Fix null pointer dereference on error
        ata: libata-core: Add ATA_HORKAGE_NOLPM for all Crucial BX SSD1 models
      aca7c377
    • Niklas Cassel's avatar
      ata: ahci: Clean up sysfs file on error · eeb25a09
      Niklas Cassel authored
      .probe() (ahci_init_one()) calls sysfs_add_file_to_group(), however,
      if probe() fails after this call, we currently never call
      sysfs_remove_file_from_group().
      
      (The sysfs_remove_file_from_group() call in .remove() (ahci_remove_one())
      does not help, as .remove() is not called on .probe() error.)
      
      Thus, if probe() fails after the sysfs_add_file_to_group() call, the next
      time we insmod the module we will get:
      
      sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:04.0/remapped_nvme'
      CPU: 11 PID: 954 Comm: modprobe Not tainted 6.10.0-rc5 #43
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
      Call Trace:
       <TASK>
       dump_stack_lvl+0x5d/0x80
       sysfs_warn_dup.cold+0x17/0x23
       sysfs_add_file_mode_ns+0x11a/0x130
       sysfs_add_file_to_group+0x7e/0xc0
       ahci_init_one+0x31f/0xd40 [ahci]
      
      Fixes: 894fba7f ("ata: ahci: Add sysfs attribute to show remapped NVMe device count")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
      Link: https://lore.kernel.org/r/20240629124210.181537-10-cassel@kernel.orgSigned-off-by: default avatarNiklas Cassel <cassel@kernel.org>
      eeb25a09
    • Niklas Cassel's avatar
      ata: libata-core: Fix double free on error · ab9e0c52
      Niklas Cassel authored
      If e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump
      to the err_out label, which will call devres_release_group().
      devres_release_group() will trigger a call to ata_host_release().
      ata_host_release() calls kfree(host), so executing the kfree(host) in
      ata_host_alloc() will lead to a double free:
      
      kernel BUG at mm/slub.c:553!
      Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
      CPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
      RIP: 0010:kfree+0x2cf/0x2f0
      Code: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da
      RSP: 0018:ffffc90000f377f0 EFLAGS: 00010246
      RAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320
      RDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0
      RBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000
      R10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780
      R13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006
      FS:  00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0
      PKRU: 55555554
      Call Trace:
       <TASK>
       ? __die_body.cold+0x19/0x27
       ? die+0x2e/0x50
       ? do_trap+0xca/0x110
       ? do_error_trap+0x6a/0x90
       ? kfree+0x2cf/0x2f0
       ? exc_invalid_op+0x50/0x70
       ? kfree+0x2cf/0x2f0
       ? asm_exc_invalid_op+0x1a/0x20
       ? ata_host_alloc+0xf5/0x120 [libata]
       ? ata_host_alloc+0xf5/0x120 [libata]
       ? kfree+0x2cf/0x2f0
       ata_host_alloc+0xf5/0x120 [libata]
       ata_host_alloc_pinfo+0x14/0xa0 [libata]
       ahci_init_one+0x6c9/0xd20 [ahci]
      
      Ensure that we will not call kfree(host) twice, by performing the kfree()
      only if the devres_open_group() call failed.
      
      Fixes: dafd6c49 ("libata: ensure host is free'd on error exit paths")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
      Link: https://lore.kernel.org/r/20240629124210.181537-9-cassel@kernel.orgSigned-off-by: default avatarNiklas Cassel <cassel@kernel.org>
      ab9e0c52
    • Niklas Cassel's avatar
      ata,scsi: libata-core: Do not leak memory for ata_port struct members · f6549f53
      Niklas Cassel authored
      libsas is currently not freeing all the struct ata_port struct members,
      e.g. ncq_sense_buf for a driver supporting Command Duration Limits (CDL).
      
      Add a function, ata_port_free(), that is used to free a ata_port,
      including its struct members. It makes sense to keep the code related to
      freeing a ata_port in its own function, which will also free all the
      struct members of struct ata_port.
      
      Fixes: 18bd7718 ("scsi: ata: libata: Handle completion of CDL commands using policy 0xD")
      Reviewed-by: default avatarJohn Garry <john.g.garry@oracle.com>
      Link: https://lore.kernel.org/r/20240629124210.181537-8-cassel@kernel.orgSigned-off-by: default avatarNiklas Cassel <cassel@kernel.org>
      f6549f53
    • Niklas Cassel's avatar
      ata: libata-core: Fix null pointer dereference on error · 5d92c7c5
      Niklas Cassel authored
      If the ata_port_alloc() call in ata_host_alloc() fails,
      ata_host_release() will get called.
      
      However, the code in ata_host_release() tries to free ata_port struct
      members unconditionally, which can lead to the following:
      
      BUG: unable to handle page fault for address: 0000000000003990
      PGD 0 P4D 0
      Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
      CPU: 10 PID: 594 Comm: (udev-worker) Not tainted 6.10.0-rc5 #44
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
      RIP: 0010:ata_host_release.cold+0x2f/0x6e [libata]
      Code: e4 4d 63 f4 44 89 e2 48 c7 c6 90 ad 32 c0 48 c7 c7 d0 70 33 c0 49 83 c6 0e 41
      RSP: 0018:ffffc90000ebb968 EFLAGS: 00010246
      RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000
      RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0
      RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68
      R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004
      R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006
      FS:  00007f6cc55b9980(0000) GS:ffff88813b300000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 0000000000003990 CR3: 00000001122a2000 CR4: 0000000000750ef0
      PKRU: 55555554
      Call Trace:
       <TASK>
       ? __die_body.cold+0x19/0x27
       ? page_fault_oops+0x15a/0x2f0
       ? exc_page_fault+0x7e/0x180
       ? asm_exc_page_fault+0x26/0x30
       ? ata_host_release.cold+0x2f/0x6e [libata]
       ? ata_host_release.cold+0x2f/0x6e [libata]
       release_nodes+0x35/0xb0
       devres_release_group+0x113/0x140
       ata_host_alloc+0xed/0x120 [libata]
       ata_host_alloc_pinfo+0x14/0xa0 [libata]
       ahci_init_one+0x6c9/0xd20 [ahci]
      
      Do not access ata_port struct members unconditionally.
      
      Fixes: 633273a3 ("libata-pmp: hook PMP support and enable it")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
      Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
      Reviewed-by: default avatarJohn Garry <john.g.garry@oracle.com>
      Link: https://lore.kernel.org/r/20240629124210.181537-7-cassel@kernel.orgSigned-off-by: default avatarNiklas Cassel <cassel@kernel.org>
      5d92c7c5
    • Linus Torvalds's avatar
      Merge tag 'kbuild-fixes-v6.10-3' of... · e0b668b0
      Linus Torvalds authored
      Merge tag 'kbuild-fixes-v6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
      
      Pull Kbuild fixes from Masahiro Yamada:
      
       - Remove the executable bit from installed DTB files
      
       - Escape $ in subshell execution in the debian-orig target
      
       - Fix RPM builds with CONFIG_MODULES=n
      
       - Fix xconfig with the O= option
      
       - Fix scripts_gdb with the O= option
      
      * tag 'kbuild-fixes-v6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kbuild: scripts/gdb: bring the "abspath" back
        kbuild: Use $(obj)/%.cc to fix host C++ module builds
        kbuild: rpm-pkg: fix build error with CONFIG_MODULES=n
        kbuild: Fix build target deb-pkg: ln: failed to create hard link
        kbuild: doc: Update default INSTALL_MOD_DIR from extra to updates
        kbuild: Install dtb files as 0644 in Makefile.dtbinst
      e0b668b0
    • Linus Torvalds's avatar
      x86-32: fix cmpxchg8b_emu build error with clang · 76932725
      Linus Torvalds authored
      The kernel test robot reported that clang no longer compiles the 32-bit
      x86 kernel in some configurations due to commit 95ece481
      ("locking/atomic/x86: Rewrite x86_32 arch_atomic64_{,fetch}_{and,or,xor}()
      functions").
      
      The build fails with
      
        arch/x86/include/asm/cmpxchg_32.h:149:9: error: inline assembly requires more registers than available
      
      and the reason seems to be that not only does the cmpxchg8b instruction
      need four fixed registers (EDX:EAX and ECX:EBX), with the emulation
      fallback the inline asm also wants a fifth fixed register for the
      address (it uses %esi for that, but that's just a software convention
      with cmpxchg8b_emu).
      
      Avoiding using another pointer input to the asm (and just forcing it to
      use the "0(%esi)" addressing that we end up requiring for the sw
      fallback) seems to fix the issue.
      Reported-by: default avatarkernel test robot <lkp@intel.com>
      Closes: https://lore.kernel.org/oe-kbuild-all/202406230912.F6XFIyA6-lkp@intel.com/
      Fixes: 95ece481 ("locking/atomic/x86: Rewrite x86_32 arch_atomic64_{,fetch}_{and,or,xor}() functions")
      Link: https://lore.kernel.org/all/202406230912.F6XFIyA6-lkp@intel.com/Suggested-by: default avatarUros Bizjak <ubizjak@gmail.com>
      Reviewed-and-Tested-by: default avatarUros Bizjak <ubizjak@gmail.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      76932725
    • Linus Torvalds's avatar
      Merge tag 'char-misc-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 84dd4373
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are some small driver fixes for 6.10-rc6. Included in here are:
      
         - IIO driver fixes for reported issues
      
         - Counter driver fix for a reported problem.
      
        All of these have been in linux-next this week with no reported
        issues"
      
      * tag 'char-misc-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        counter: ti-eqep: enable clock at probe
        iio: chemical: bme680: Fix sensor data read operation
        iio: chemical: bme680: Fix overflows in compensate() functions
        iio: chemical: bme680: Fix calibration data variable
        iio: chemical: bme680: Fix pressure value output
        iio: humidity: hdc3020: fix hysteresis representation
        iio: dac: fix ad9739a random config compile error
        iio: accel: fxls8962af: select IIO_BUFFER & IIO_KFIFO_BUF
        iio: adc: ad7266: Fix variable checking bug
        iio: xilinx-ams: Don't include ams_ctrl_channels in scan_mask
      84dd4373
    • Linus Torvalds's avatar
      Merge tag 'staging-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 12529aa1
      Linus Torvalds authored
      Pull staging driver fixes from Greg KH:
       "Here are two small staging driver fixes for 6.10-rc6, both for the
        vc04_services drivers:
      
         - build fix if CONFIG_DEBUGFS was not set
      
         - initialization check fix that was much reported.
      
        Both of these have been in linux-next this week with no reported
        issues"
      
      * tag 'staging-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: vchiq_debugfs: Fix build if CONFIG_DEBUG_FS is not set
        staging: vc04_services: vchiq_arm: Fix initialisation check
      12529aa1
    • Linus Torvalds's avatar
      Merge tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 3e334486
      Linus Torvalds authored
      Pull tty / serial / console fixes from Greg KH:
       "Here are a bunch of fixes/reverts for 6.10-rc6.  Include in here are:
      
         - revert the bunch of tty/serial/console changes that landed in -rc1
           that didn't quite work properly yet.
      
           Everyone agreed to just revert them for now and will work on making
           them better for a future release instead of trying to quick fix the
           existing changes this late in the release cycle
      
         - 8250 driver port count bugfix
      
         - Other tiny serial port bugfixes for reported issues
      
        All of these have been in linux-next this week with no reported
        issues"
      
      * tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        Revert "printk: Save console options for add_preferred_console_match()"
        Revert "printk: Don't try to parse DEVNAME:0.0 console options"
        Revert "printk: Flag register_console() if console is set on command line"
        Revert "serial: core: Add support for DEVNAME:0.0 style naming for kernel console"
        Revert "serial: core: Handle serial console options"
        Revert "serial: 8250: Add preferred console in serial8250_isa_init_ports()"
        Revert "Documentation: kernel-parameters: Add DEVNAME:0.0 format for serial ports"
        Revert "serial: 8250: Fix add preferred console for serial8250_isa_init_ports()"
        Revert "serial: core: Fix ifdef for serial base console functions"
        serial: bcm63xx-uart: fix tx after conversion to uart_port_tx_limited()
        serial: core: introduce uart_port_tx_limited_flags()
        Revert "serial: core: only stop transmit when HW fifo is empty"
        serial: imx: set receiver level before starting uart
        tty: mcf: MCF54418 has 10 UARTS
        serial: 8250_omap: Implementation of Errata i2310
        tty: serial: 8250: Fix port count mismatch with the device
      3e334486
    • Linus Torvalds's avatar
      Merge tag 'usb-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 2c01c3d5
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are a handful of small USB driver fixes for 6.10-rc6 to resolve
        some reported issues. Included in here are:
      
         - typec driver bugfixes
      
         - usb gadget driver reverts for commits that were reported to have
           problems
      
         - resource leak bugfix
      
         - gadget driver bugfixes
      
         - dwc3 driver bugfixes
      
         - usb atm driver bugfix for when syzbot got loose on it
      
        All of these have been in linux-next this week with no reported issues"
      
      * tag 'usb-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        usb: dwc3: core: Workaround for CSR read timeout
        Revert "usb: gadget: u_ether: Replace netif_stop_queue with netif_device_detach"
        Revert "usb: gadget: u_ether: Re-attach netif device to mirror detachment"
        usb: gadget: aspeed_udc: fix device address configuration
        usb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock
        usb: typec: ucsi: glink: fix child node release in probe function
        usb: musb: da8xx: fix a resource leak in probe()
        usb: typec: ucsi_acpi: Add LG Gram quirk
        usb: ucsi: stm32: fix command completion handling
        usb: atm: cxacru: fix endpoint checking in cxacru_bind()
        usb: gadget: printer: fix races against disable
        usb: gadget: printer: SS+ support
      2c01c3d5
    • Linus Torvalds's avatar
      Merge tag 'smp_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3ffea9a7
      Linus Torvalds authored
      Pull smp fixes from Borislav Petkov:
      
       - Fix "nosmp" and "maxcpus=0" after the parallel CPU bringup work went
         in and broke them
      
       - Make sure CPU hotplug dynamic prepare states are actually executed
      
      * tag 'smp_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        cpu: Fix broken cmdline "nosmp" and "maxcpus=0"
        cpu/hotplug: Fix dynstate assignment in __cpuhp_setup_state_cpuslocked()
      3ffea9a7
    • Linus Torvalds's avatar
      Merge tag 'irq_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 4e412160
      Linus Torvalds authored
      Pull irq fixes from Borislav Petkov:
      
       - Make sure multi-bridge machines get all eiointc interrupt controllers
         initialized even if the number of CPUs has been limited by a cmdline
         param
      
       - Make sure interrupt lines on liointc hw are configured properly even
         when interrupt routing changes
      
       - Avoid use-after-free in the error path of the MSI init code
      
      * tag 'irq_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        PCI/MSI: Fix UAF in msi_capability_init
        irqchip/loongson-liointc: Set different ISRs for different cores
        irqchip/loongson-eiointc: Use early_cpu_to_node() instead of cpu_to_node()
      4e412160
    • Linus Torvalds's avatar
      Merge tag 'timers_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 03c8b0bd
      Linus Torvalds authored
      Pull timer fix from Borislav Petkov:
      
       - Warn when an hrtimer doesn't get a callback supplied
      
      * tag 'timers_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        hrtimer: Prevent queuing of hrtimer without a function callback
      03c8b0bd
    • Linus Torvalds's avatar
      Merge tag 'linux-watchdog-6.10-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog · 327fceff
      Linus Torvalds authored
      Pull watchdog fixes from Wim Van Sebroeck:
      
       - lenovo_se10_wdt: add HAS_IOPORT dependency
      
       - add missing MODULE_DESCRIPTION() macros
      
      * tag 'linux-watchdog-6.10-rc-fixes' of git://www.linux-watchdog.org/linux-watchdog:
        watchdog: add missing MODULE_DESCRIPTION() macros
        watchdog: lenovo_se10_wdt: add HAS_IOPORT dependency
      327fceff
  6. 29 Jun, 2024 5 commits
  7. 28 Jun, 2024 13 commits
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · de0a9f44
      Linus Torvalds authored
      Pull RISC-V fixes from Palmer Dabbelt:
      
       - A fix for vector load/store instruction decoding, which could result
         in reserved vector element length encodings decoding as valid vector
         instructions.
      
       - Instruction patching now aggressively flushes the local instruction
         cache, to avoid situations where patching functions on the flush path
         results in torn instructions being fetched.
      
       - A fix to prevent the stack walker from showing up as part of traces.
      
      * tag 'riscv-for-linus-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        riscv: stacktrace: convert arch_stack_walk() to noinstr
        riscv: patch: Flush the icache right after patching to avoid illegal insns
        RISC-V: fix vector insn load/store width mask
      de0a9f44
    • Linus Torvalds's avatar
      Merge tag 'hardening-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · b75f9472
      Linus Torvalds authored
      Pull hardening fixes from Kees Cook:
      
       - Remove invalid tty __counted_by annotation (Nathan Chancellor)
      
       - Add missing MODULE_DESCRIPTION()s for KUnit string tests (Jeff
         Johnson)
      
       - Remove non-functional per-arch kstack entropy filtering
      
      * tag 'hardening-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        tty: mxser: Remove __counted_by from mxser_board.ports[]
        randomize_kstack: Remove non-functional per-arch entropy filtering
        string: kunit: add missing MODULE_DESCRIPTION() macros
      b75f9472
    • Linus Torvalds's avatar
      x86: stop playing stack games in profile_pc() · 093d9603
      Linus Torvalds authored
      The 'profile_pc()' function is used for timer-based profiling, which
      isn't really all that relevant any more to begin with, but it also ends
      up making assumptions based on the stack layout that aren't necessarily
      valid.
      
      Basically, the code tries to account the time spent in spinlocks to the
      caller rather than the spinlock, and while I support that as a concept,
      it's not worth the code complexity or the KASAN warnings when no serious
      profiling is done using timers anyway these days.
      
      And the code really does depend on stack layout that is only true in the
      simplest of cases.  We've lost the comment at some point (I think when
      the 32-bit and 64-bit code was unified), but it used to say:
      
      	Assume the lock function has either no stack frame or a copy
      	of eflags from PUSHF.
      
      which explains why it just blindly loads a word or two straight off the
      stack pointer and then takes a minimal look at the values to just check
      if they might be eflags or the return pc:
      
      	Eflags always has bits 22 and up cleared unlike kernel addresses
      
      but that basic stack layout assumption assumes that there isn't any lock
      debugging etc going on that would complicate the code and cause a stack
      frame.
      
      It causes KASAN unhappiness reported for years by syzkaller [1] and
      others [2].
      
      With no real practical reason for this any more, just remove the code.
      
      Just for historical interest, here's some background commits relating to
      this code from 2006:
      
        0cb91a22 ("i386: Account spinlocks to the caller during profiling for !FP kernels")
        31679f38 ("Simplify profile_pc on x86-64")
      
      and a code unification from 2009:
      
        ef451288 ("x86: time_32/64.c unify profile_pc")
      
      but the basics of this thing actually goes back to before the git tree.
      
      Link: https://syzkaller.appspot.com/bug?extid=84fe685c02cd112a2ac3 [1]
      Link: https://lore.kernel.org/all/CAK55_s7Xyq=nh97=K=G1sxueOFrJDAvPOJAL4TPTCAYvmxO9_A@mail.gmail.com/ [2]
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      093d9603
    • Wolfram Sang's avatar
      i2c: testunit: discard write requests while old command is running · c116deaf
      Wolfram Sang authored
      When clearing registers on new write requests was added, the protection
      for currently running commands was missed leading to concurrent access
      to the testunit registers. Check the flag beforehand.
      
      Fixes: b39ab96a ("i2c: testunit: add support for block process calls")
      Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
      Reviewed-by: default avatarAndi Shyti <andi.shyti@kernel.org>
      c116deaf
    • Wolfram Sang's avatar
      i2c: testunit: don't erase registers after STOP · c422b6a6
      Wolfram Sang authored
      STOP fallsthrough to WRITE_REQUESTED but this became problematic when
      clearing the testunit registers was added to the latter. Actually, there
      is no reason to clear the testunit state after STOP. Doing it when a new
      WRITE_REQUESTED arrives is enough. So, no need to fallthrough, at all.
      
      Fixes: b39ab96a ("i2c: testunit: add support for block process calls")
      Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
      Reviewed-by: default avatarAndi Shyti <andi.shyti@kernel.org>
      c422b6a6
    • Wolfram Sang's avatar
      Merge tag 'i2c-host-fixes-6.10-rc6' of... · 4e9a1a47
      Wolfram Sang authored
      Merge tag 'i2c-host-fixes-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
      
      Fixed a build error following the major refactoring involving the
      VIA-I2C modules. Originally, the code was split to group together
      parts that would be used by different drivers. This caused build
      issues when two modules linked to the same code.
      4e9a1a47
    • Linus Torvalds's avatar
      Merge tag 'nfsd-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux · 6c0483db
      Linus Torvalds authored
      Pull nfsd fixes from Chuck Lever:
      
       - Due to a late review, revert and re-fix a recent crasher fix
      
      * tag 'nfsd-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
        Revert "nfsd: fix oops when reading pool_stats before server is started"
        nfsd: initialise nfsd_info.mutex early.
      6c0483db
    • Linus Torvalds's avatar
      Merge tag 'bcachefs-2024-06-28' of https://evilpiepirate.org/git/bcachefs · cd63a278
      Linus Torvalds authored
      Pull bcachefs fixes from Kent Overstreet:
       "Simple stuff:
      
         - NULL ptr/err ptr deref fixes
      
         - fix for getting wedged on shutdown after journal error
      
         - fix missing recalc_capacity() call, capacity now changes correctly
           after a device goes read only
      
           however: our capacity calculation still doesn't take into account
           when we have mixed ro/rw devices and the ro devices have data on
           them, that's going to be a more involved fix to separate accounting
           for "capacity used on ro devices" and "capacity used on rw devices"
      
         - boring syzbot stuff
      
        Slightly more involved:
      
         - discard, invalidate workers are now per device
      
           this has the effect of simplifying how we take device refs in these
           paths, and the device ref cleanup fixes a longstanding race between
           the device removal path and the discard path
      
         - fixes for how the debugfs code takes refs on btree_trans objects we
           have debugfs code that prints in use btree_trans objects.
      
           It uses closure_get() on trans->ref, which is mainly for the cycle
           detector, but the debugfs code was using it on a closure that may
           have hit 0, which is not allowed; for performance reasons we cannot
           avoid having not-in-use transactions on the global list.
      
           Introduce some new primitives to fix this and make the
           synchronization here a whole lot saner"
      
      * tag 'bcachefs-2024-06-28' of https://evilpiepirate.org/git/bcachefs:
        bcachefs: Fix kmalloc bug in __snapshot_t_mut
        bcachefs: Discard, invalidate workers are now per device
        bcachefs: Fix shift-out-of-bounds in bch2_blacklist_entries_gc
        bcachefs: slab-use-after-free Read in bch2_sb_errors_from_cpu
        bcachefs: Add missing bch2_journal_do_writes() call
        bcachefs: Fix null ptr deref in journal_pins_to_text()
        bcachefs: Add missing recalc_capacity() call
        bcachefs: Fix btree_trans list ordering
        bcachefs: Fix race between trans_put() and btree_transactions_read()
        closures: closure_get_not_zero(), closure_return_sync()
        bcachefs: Make btree_deadlock_to_text() clearer
        bcachefs: fix seqmutex_relock()
        bcachefs: Fix freeing of error pointers
      cd63a278
    • Linus Torvalds's avatar
      Merge tag 'block-6.10-20240628' of git://git.kernel.dk/linux · cd17613f
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "NVMe fixes via Keith:
      
         - Fabrics fixes (Hannes)
      
         - Missing module description (Jeff)
      
         - Clang warning fix (Nathan)"
      
      * tag 'block-6.10-20240628' of git://git.kernel.dk/linux:
        nvmet-fc: Remove __counted_by from nvmet_fc_tgt_queue.fod[]
        nvmet: make 'tsas' attribute idempotent for RDMA
        nvme: fixup comment for nvme RDMA Provider Type
        nvme-apple: add missing MODULE_DESCRIPTION()
        nvmet: do not return 'reserved' for empty TSAS values
        nvme: fix NVME_NS_DEAC may incorrectly identifying the disk as EXT_LBA.
      cd17613f
    • Linus Torvalds's avatar
      Merge tag 'iommu-fixes-v6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux · a2316dda
      Linus Torvalds authored
      Pull iommu fixes from Joerg Roedel:
      
       - Two cache flushing fixes for Intel and AMD drivers
      
       - AMD guest translation enabling fix
      
       - Update IOMMU tree location in MAINTAINERS file
      
      * tag 'iommu-fixes-v6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
        MAINTAINERS: Update IOMMU tree location
        iommu/amd: Fix GT feature enablement again
        iommu/vt-d: Fix missed device TLB cache tag
        iommu/amd: Invalidate cache before removing device from domain list
      a2316dda
    • Linus Torvalds's avatar
      Merge tag 'gpio-fixes-for-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux · 1cf06684
      Linus Torvalds authored
      Pull gpio fixes from Bartosz Golaszewski:
       "An assortment of driver fixes and two commits addressing a bad
        behavior of the GPIO uAPI when reconfiguring requested lines.
      
         - fix a race condition in i2c transfers by adding a missing i2c lock
           section in gpio-pca953x
      
         - validate the number of obtained interrupts in gpio-davinci
      
         - add missing raw_spinlock_init() in gpio-graniterapids
      
         - fix bad character device behavior: disallow GPIO line
           reconfiguration without set direction both in v1 and v2 uAPI"
      
      * tag 'gpio-fixes-for-v6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
        gpiolib: cdev: Ignore reconfiguration without direction
        gpiolib: cdev: Disallow reconfiguration without direction (uAPI v1)
        gpio: graniterapids: Add missing raw_spinlock_init()
        gpio: davinci: Validate the obtained number of IRQs
        gpio: pca953x: fix pca953x_irq_bus_sync_unlock race
      1cf06684
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 90384559
      Linus Torvalds authored
      Pull arm64 fixes from Will Deacon:
       "A pair of small arm64 fixes for -rc6.
      
        One is a fix for the recently merged uffd-wp support (which was
        triggering a spurious warning) and the other is a fix to the clearing
        of the initial idmap pgd in some configurations
      
        Summary:
      
         - Fix spurious page-table warning when clearing PTE_UFFD_WP in a live
           pte
      
         - Fix clearing of the idmap pgd when using large addressing modes"
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: Clear the initial ID map correctly before remapping
        arm64: mm: Permit PTE SW bits to change in live mappings
      90384559
    • Linus Torvalds's avatar
      Merge tag 'v6.10-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux · 234458d0
      Linus Torvalds authored
      Pull turbostat fixes from Len Brown:
       "Fix three recent minor turbostat regressions"
      
      * tag 'v6.10-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
        tools/power turbostat: Add local build_bug.h header for snapshot target
        tools/power turbostat: Fix unc freq columns not showing with '-q' or '-l'
        tools/power turbostat: option '-n' is ambiguous
      234458d0