Commit graph

1,325,303 commits

Author SHA1 Message Date
Al Viro
f526ca6bc1 octeontx2: don't mess with ->d_parent or ->d_parent->d_name
use debugfs_{create_file,get}_aux_num() instead.

[and for fsck sake, don't call variables filp - especially the
ones that are not even struct file *]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-19-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:37 +01:00
Al Viro
f22fa721ae arm_scmi: don't mess with ->d_parent->d_name
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-18-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:37 +01:00
Al Viro
f9c8dbc829 slub: don't mess with ->d_name
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-17-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:37 +01:00
Al Viro
74e5a20c93 sof-client-ipc-flood-test: don't mess with ->d_name
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-16-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:37 +01:00
Al Viro
75a96701dc qat: don't mess with ->d_name
use debugfs_{create_file,get}_aux_num() instead.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-15-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:37 +01:00
Al Viro
e777ba7bbd xhci: don't mess with ->d_iname
use debugs_{creat_file,get}_aux() instead

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-14-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:37 +01:00
Al Viro
c63254a747 mtu3: don't mess wiht ->d_iname
use debugfs_{create_file,get}_aux() instead.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-13-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
c05fc27af6 greybus/camera - stop messing with ->d_iname
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-12-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
e12a76f07e mediatek: stop messing with ->d_iname
use debgufs_{create_file,get}_aux_num() instead.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-11-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
1eb87004d2 netdevsim: don't embed file_operations into your structs
Just use debugfs_get_aux() instead of debugfs_real_fops().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-10-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
231e9f0512 b43legacy: make use of debugfs_get_aux()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-9-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
86d4ef6a39 b43: stop embedding struct file_operations into their objects
Use debugfs_get_aux() instead.  And switch to debugfs_short_fops, while we
are at it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-8-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
a61af96799 carl9170: stop embedding file_operations into their objects
use debugfs_get_aux() instead; switch to debugfs_short_ops as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250112080705.141166-7-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
d1433c7ba2 debugfs: take debugfs_short_fops definition out of ifdef
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20250112080705.141166-6-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
12c9209893 debugfs: allow to store an additional opaque pointer at file creation
Set by debugfs_create_file_aux(name, mode, parent, data, aux, fops).
Plain debugfs_create_file() has it set to NULL.
Accessed by debugfs_get_aux(file).

Convenience macros for numeric opaque data - debugfs_create_file_aux_num
and debugfs_get_aux_num, resp.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20250112080705.141166-5-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:36 +01:00
Al Viro
95688800ee debugfs: don't mess with bits in ->d_fsdata
The reason we need that crap is the dual use ->d_fsdata has there -
it's both holding a debugfs_fsdata reference after the first
debugfs_file_get() (actually, after the call of proxy ->open())
*and* it serves as a place to stash a reference to real file_operations
from object creation to the first open.  Oh, and it's triple use,
actually - that stashed reference might be to debugfs_short_fops.

Bugger that for a game of solidiers - just put the operations
reference into debugfs-private augmentation of inode.  And split
debugfs_full_file_operations into full and short cases, so that
debugfs_get_file() could tell one from another.

Voila - ->d_fsdata holds NULL until the first (successful) debugfs_get_file()
and a reference to struct debugfs_fsdata afterwards.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20250112080705.141166-4-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:35 +01:00
Al Viro
41a0ecc099 debugfs: get rid of dynamically allocation proxy_ops
All it takes is having full_proxy_open() collect the information
about available methods and store it in debugfs_fsdata.

Wrappers are called only after full_proxy_open() has succeeded
calling debugfs_get_file(), so they are guaranteed to have
->d_fsdata already pointing to debugfs_fsdata.

As the result, they can check if method is absent and bugger off
early, without any atomic operations, etc. - same effect as what
we'd have from NULL method.  Which makes the entire proxy_fops
contents unconditional, making it completely pointless - we can
just put those methods (unconditionally) into
debugfs_full_proxy_file_operations and forget about dynamic
allocation, replace_fops, etc.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20250112080705.141166-3-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:35 +01:00
Al Viro
bacaaf833e debugfs: move ->automount into debugfs_inode_info
... and don't bother with debugfs_fsdata for those.  Life's
simpler that way...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20250112080705.141166-2-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:35 +01:00
Al Viro
268b36116f debugfs: separate cache for debugfs inodes
Embed them into container (struct debugfs_inode_info, with nothing
else in it at the moment), set the cache up, etc.

Just the infrastructure changes letting us augment debugfs inodes
here; adding stuff will come at the next step.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20250112080705.141166-1-viro@zeniv.linux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-15 13:14:35 +01:00
Dr. David Alan Gilbert
ee9c69388e kobject: Remove unused functions
kobj_ns_initial() and kobj_ns_netlink() were adde din 2010 by
commit bc451f2058 ("kobj: Add basic infrastructure for dealing with
namespaces.")
but have remained unused.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20250112144907.270272-1-linux@treblig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-14 19:45:35 +01:00
Greg Kroah-Hartman
dd19f4116e Merge 6.13-rc7 into driver-core-next
We need the debugfs / driver-core fixes in here as well for testing and
to build on top of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-13 06:40:34 +01:00
Linus Torvalds
5bc55a333a Linux 6.13-rc7 v6.13-rc7 2025-01-12 14:37:56 -08:00
Linus Torvalds
0cbe10470b Char/Misc/IIO driver fixes for 6.13-rc7
Here are a bunch of small IIO and interconnect and other driver fixes
 for 6.13-rc7 to resolve reported issues.  Included in here are:
   - loads of iio driver fixes as a result of an audit of places where
     uninitialized data would leak to userspace.
   - other smaller, and normal, iio driver fixes.
   - mhi driver fix
   - interconnect driver fixes
   - pci1xxxx driver fix
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc/IIO driver fixes from Greg KH:
 "Here are a bunch of small IIO and interconnect and other driver fixes
  to resolve reported issues. Included in here are:

   - loads of iio driver fixes as a result of an audit of places where
    uninitialized data would leak to userspace.

   - other smaller, and normal, iio driver fixes.

   - mhi driver fix

   - interconnect driver fixes

   - pci1xxxx driver fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (32 commits)
  misc: microchip: pci1xxxx: Resolve return code mismatch during GPIO set config
  misc: microchip: pci1xxxx: Resolve kernel panic during GPIO IRQ handling
  interconnect: icc-clk: check return values of devm_kasprintf()
  interconnect: qcom: icc-rpm: Set the count member before accessing the flex array
  iio: adc: ti-ads1119: fix sample size in scan struct for triggered buffer
  iio: temperature: tmp006: fix information leak in triggered buffer
  iio: inkern: call iio_device_put() only on mapped devices
  iio: adc: ad9467: Fix the "don't allow reading vref if not available" case
  iio: adc: at91: call input_free_device() on allocated iio_dev
  iio: adc: ad7173: fix using shared static info struct
  iio: adc: ti-ads124s08: Use gpiod_set_value_cansleep()
  iio: adc: ti-ads1119: fix information leak in triggered buffer
  iio: pressure: zpa2326: fix information leak in triggered buffer
  iio: adc: rockchip_saradc: fix information leak in triggered buffer
  iio: imu: kmx61: fix information leak in triggered buffer
  iio: light: vcnl4035: fix information leak in triggered buffer
  iio: light: bh1745: fix information leak in triggered buffer
  iio: adc: ti-ads8688: fix information leak in triggered buffer
  iio: dummy: iio_simply_dummy_buffer: fix information leak in triggered buffer
  iio: test: Fix GTS test config
  ...
2025-01-12 14:34:00 -08:00
Linus Torvalds
083f9fac67 Driver core and debugfs fixes for 6.13-rc7
Here are some small driver core and debugfs fixes for 6.13-rc7 that
 resolve some reported problems:
   - debugfs runtime error reporting fixes
   - topology cpumask race-condition fix
   - MAINTAINERS file email update
 
 All of these have been in linux-next this week with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core and debugfs fixes from Greg KH:
 "Here are some small driver core and debugfs fixes that resolve some
  reported problems:

   - debugfs runtime error reporting fixes

   - topology cpumask race-condition fix

   - MAINTAINERS file email update

  All of these have been in linux-next this week with no reported
  issues"

* tag 'driver-core-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  fs: debugfs: fix open proxy for unsafe files
  MAINTAINERS: align Danilo's maintainer entries
  topology: Keep the cpumask unchanged when printing cpumap
  debugfs: fix missing mutex_destroy() in short_fops case
  fs: debugfs: differentiate short fops with proxy ops
2025-01-12 14:26:31 -08:00
Linus Torvalds
91fff6fa94 Staging driver fixes for 6.13-rc7
Here are some small staging driver fixes that resolve some reported
 issues and have been in my tree for too long due to the holiday break.
 They resolve the following issues:
   - lots of gpib build-time fixes as reported by testers and 0-day
   - gpib logical fixes
   - mailmap fix (already in your tree, but git merge should handle it.)
 
 All of these have been in linux-next for a while, with no reported
 issues other than the duplicated change.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are some small staging driver fixes that resolve some reported
  issues and have been in my tree for too long due to the holiday break.
  They resolve the following issues:

   - lots of gpib build-time fixes as reported by testers and 0-day

   - gpib logical fixes

   - mailmap fix

  All of these have been in linux-next for a while, with no reported
  issues other than the duplicated change"

* tag 'staging-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: gpib: mite: remove unused global functions
  staging: gpib: refer to correct config symbol in tnt4882 Makefile
  mailmap: update Bingwu Zhang's email address
  staging: gpib: fix address space mixup
  staging: gpib: use ioport_map
  staging: gpib: fix pcmcia dependencies
  staging: gpib: add module author and description fields
  staging: gpib: fix Makefiles
  staging: gpib: make global 'usec_diff' functions static
  staging: gpib: Modify mismatched function name
  staging: gpib: Add lower bound check for secondary address
  staging: gpib: Fix erroneous removal of blank before newline
2025-01-12 14:22:13 -08:00
Linus Torvalds
4bd9e3b4c5 Serial driver fixes for 6.13-rc7
Here are 3 small serial driver fixes tree.  They resolve some reported
 issues:
   - stm32 break control fix
   - 8250 runtime pm usage counter fix
   - imx driver locking fix.
 
 All have been in my tree and linux-next for 3 weeks now, with no
 reported issues:
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull serial driver fixes from Greg KH:
 "Here are three small serial driver fixes tree. They resolve some
  reported issues:

   - stm32 break control fix

   - 8250 runtime pm usage counter fix

   - imx driver locking fix

  All have been in my tree and linux-next for three weeks now, with no
  reported issues"

* tag 'tty-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: stm32: use port lock wrappers for break control
  serial: imx: Use uart_port_lock_irq() instead of uart_port_lock()
  tty: serial: 8250: Fix another runtime PM usage counter underflow
2025-01-12 13:27:15 -08:00
Linus Torvalds
196856db7c USB fixes for 6.13-rc7
Here are some small USB driver fixes and new device ids for 6.13-rc7.
 Included in here are:
   - usb serial new device ids
   - typec bugfixes for reported issues
   - dwc3 driver fixes
   - chipidea driver fixes
   - gadget driver fixes
   - other minor fixes for reported problems.
 
 All of these have been in linux-next for a while, with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB driver fixes and new device ids for 6.13-rc7.
  Included in here are:

   - usb serial new device ids

   - typec bugfixes for reported issues

   - dwc3 driver fixes

   - chipidea driver fixes

   - gadget driver fixes

   - other minor fixes for reported problems.

  All of these have been in linux-next for a while, with no reported
  issues"

* tag 'usb-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: option: add Neoway N723-EA support
  USB: serial: option: add MeiG Smart SRM815
  USB: serial: cp210x: add Phoenix Contact UPS Device
  usb: typec: fix pm usage counter imbalance in ucsi_ccg_sync_control()
  usb-storage: Add max sectors quirk for Nokia 208
  usb: gadget: midi2: Reverse-select at the right place
  usb: gadget: f_fs: Remove WARN_ON in functionfs_bind
  USB: core: Disable LPM only for non-suspended ports
  usb: fix reference leak in usb_new_device()
  usb: typec: tcpci: fix NULL pointer issue on shared irq case
  usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null
  usb: chipidea: ci_hdrc_imx: decrement device's refcount in .remove() and in the error path of .probe()
  usb: typec: ucsi: Set orientation as none when connector is unplugged
  usb: gadget: configfs: Ignore trailing LF for user strings to cdev
  USB: usblp: return error when setting unsupported protocol
  usb: gadget: f_uac2: Fix incorrect setting of bNumEndpoints
  usb: typec: tcpm/tcpci_maxim: fix error code in max_contaminant_read_resistance_kohm()
  usb: host: xhci-plat: set skip_phy_initialization if software node has XHCI_SKIP_PHY_INIT property
  usb: dwc3-am62: Disable autosuspend during remove
  usb: dwc3: gadget: fix writing NYET threshold
2025-01-12 13:09:00 -08:00
Linus Torvalds
be54864552 s390:
* fix a latent bug when the kernel is compiled in debug mode
 
 * two small UCONTROL fixes and their selftests
 
 arm64:
 
 * always check page state in hyp_ack_unshare()
 
 * align set_id_regs selftest with the fact that ASIDBITS field is RO
 
 * various vPMU fixes for bugs that only affect nested virt
 
 PPC e500:
 
 * Fix a mostly impossible (but just wrong) case where IRQs were
   never re-enabled
 
 * Observe host permissions instead of mapping readonly host pages as
   guest-writable.  This fixes a NULL-pointer dereference in 6.13
 
 * Replace brittle VMA-based attempts at building huge shadow TLB entries
   with PTE lookups.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "The largest part here is for KVM/PPC, where a NULL pointer dereference
  was introduced in the 6.13 merge window and is now fixed.

  There's some "holiday-induced lateness", as the s390 submaintainer put
  it, but otherwise things looks fine.

  s390:

   - fix a latent bug when the kernel is compiled in debug mode

   - two small UCONTROL fixes and their selftests

  arm64:

   - always check page state in hyp_ack_unshare()

   - align set_id_regs selftest with the fact that ASIDBITS field is RO

   - various vPMU fixes for bugs that only affect nested virt

  PPC e500:

   - Fix a mostly impossible (but just wrong) case where IRQs were never
     re-enabled

   - Observe host permissions instead of mapping readonly host pages as
     guest-writable. This fixes a NULL-pointer dereference in 6.13

   - Replace brittle VMA-based attempts at building huge shadow TLB
     entries with PTE lookups"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: e500: perform hugepage check after looking up the PFN
  KVM: e500: map readonly host pages for read
  KVM: e500: track host-writability of pages
  KVM: e500: use shadow TLB entry as witness for writability
  KVM: e500: always restore irqs
  KVM: s390: selftests: Add has device attr check to uc_attr_mem_limit selftest
  KVM: s390: selftests: Add ucontrol gis routing test
  KVM: s390: Reject KVM_SET_GSI_ROUTING on ucontrol VMs
  KVM: s390: selftests: Add ucontrol flic attr selftests
  KVM: s390: Reject setting flic pfault attributes on ucontrol VMs
  KVM: s390: vsie: fix virtual/physical address in unpin_scb()
  KVM: arm64: Only apply PMCR_EL0.P to the guest range of counters
  KVM: arm64: nv: Reload PMU events upon MDCR_EL2.HPME change
  KVM: arm64: Use KVM_REQ_RELOAD_PMU to handle PMCR_EL0.E change
  KVM: arm64: Add unified helper for reprogramming counters by mask
  KVM: arm64: Always check the state from hyp_ack_unshare()
  KVM: arm64: Fix set_id_regs selftest for ASIDBITS becoming unwritable
2025-01-12 12:04:53 -08:00
Linus Torvalds
a603abe345 - Fix a #GP in the perf user callchain code caused by a race between uprobe
freeing the task and the bpf profiler unwinding the task's user stack
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Merge tag 'perf_urgent_for_v6.13_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - Fix a #GP in the perf user callchain code caused by a race between
   uprobe freeing the task and the bpf profiler unwinding the task's
   user stack

* tag 'perf_urgent_for_v6.13_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  uprobes: Fix race in uprobe_free_utask
2025-01-12 11:57:45 -08:00
Linus Torvalds
f31acaef55 - Check whether shadow stack is active before using the ptrace regset getter
- Remove a wrong BUG_ON in the early static call code which breaks Xen PVH
   when booting as dom0
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Merge tag 'x86_urgent_for_v6.13_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Check whether shadow stack is active before using the ptrace regset
   getter

 - Remove a wrong BUG_ON in the early static call code which breaks Xen
   PVH when booting as dom0

* tag 'x86_urgent_for_v6.13_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Ensure shadow stack is active before "getting" registers
  x86/static-call: Remove early_boot_irqs_disabled check to fix Xen PVH dom0
2025-01-12 11:55:48 -08:00
Paolo Bonzini
a5546c2f0d KVM: s390: three small bugfixes
Fix a latent bug when the kernel is compiled in debug mode.
 Two small UCONTROL fixes and their selftests.
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Merge tag 'kvm-s390-master-6.13-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: three small bugfixes

Fix a latent bug when the kernel is compiled in debug mode.
Two small UCONTROL fixes and their selftests.
2025-01-12 12:51:05 +01:00
Paolo Bonzini
5c99a684c9 KVM/arm64 changes for 6.13, part #3
- Always check page state in hyp_ack_unshare()
 
  - Align set_id_regs selftest with the fact that ASIDBITS field is RO
 
  - Various vPMU fixes for bugs that only affect nested virt
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Merge tag 'kvmarm-fixes-6.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 changes for 6.13, part #3

 - Always check page state in hyp_ack_unshare()

 - Align set_id_regs selftest with the fact that ASIDBITS field is RO

 - Various vPMU fixes for bugs that only affect nested virt
2025-01-12 12:50:39 +01:00
Paolo Bonzini
71b7bf1702 Merge branch 'kvm-e500-check-writable-pfn' into HEAD
The new __kvm_faultin_pfn() function is upset by the fact that e500
KVM ignores host page permissions - __kvm_faultin requires a "writable"
outgoing argument, but e500 KVM is passing NULL.

While a simple fix would be possible that simply allows writable to
be NULL, it is quite ugly to have e500 KVM ignore completely the host
permissions and map readonly host pages as guest-writable.  Merge a more
complete fix and remove the VMA-based attempts at building huge shadow TLB
entries.  Using a PTE lookup, similar to what is done for x86, is better
and works with remap_pfn_range() because it does not assume that VM_PFNMAP
areas are contiguous.  Note that the same incorrect logic is there in
ARM's get_vma_page_shift() and RISC-V's kvm_riscv_gstage_ioremap().

Fortunately, for e500 most of the code is already there; it just has to
be changed to compute the range from find_linux_pte()'s output rather
than find_vma().  The new code works for both VM_PFNMAP and hugetlb
mappings, so the latter is removed.

Patches 2-5 were tested by the reporter, Christian Zigotzky.  Since
the difference with v1 is minimal, I am going to send it to Linus
today.
2025-01-12 12:48:14 +01:00
Paolo Bonzini
55f4db79c4 KVM: e500: perform hugepage check after looking up the PFN
e500 KVM tries to bypass __kvm_faultin_pfn() in order to map VM_PFNMAP
VMAs as huge pages.  This is a Bad Idea because VM_PFNMAP VMAs could
become noncontiguous as a result of callsto remap_pfn_range().

Instead, use the already existing host PTE lookup to retrieve a
valid host-side mapping level after __kvm_faultin_pfn() has
returned.  Then find the largest size that will satisfy the
guest's request while staying within a single host PTE.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-01-12 10:53:00 +01:00
Paolo Bonzini
03b755b2aa KVM: e500: map readonly host pages for read
The new __kvm_faultin_pfn() function is upset by the fact that e500 KVM
ignores host page permissions - __kvm_faultin requires a "writable"
outgoing argument, but e500 KVM is nonchalantly passing NULL.

If the host page permissions do not include writability, the shadow
TLB entry is forcibly mapped read-only.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-01-12 10:35:45 +01:00
Paolo Bonzini
f2104bf22f KVM: e500: track host-writability of pages
Add the possibility of marking a page so that the UW and SW bits are
force-cleared.  This is stored in the private info so that it persists
across multiple calls to kvmppc_e500_setup_stlbe.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-01-12 10:35:41 +01:00
Paolo Bonzini
e97fbb43fb KVM: e500: use shadow TLB entry as witness for writability
kvmppc_e500_ref_setup is returning whether the guest TLB entry is writable,
which is than passed to kvm_release_faultin_page.  This makes little sense
for two reasons: first, because the function sets up the private data for
the page and the return value feels like it has been bolted on the side;
second, because what really matters is whether the _shadow_ TLB entry is
writable.  If it is not writable, the page can be released as non-dirty.
Shift from using tlbe_is_writable(gtlbe) to doing the same check on
the shadow TLB entry.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-01-12 10:35:36 +01:00
Paolo Bonzini
87ecfdbc69 KVM: e500: always restore irqs
If find_linux_pte fails, IRQs will not be restored.  This is unlikely
to happen in practice since it would have been reported as hanging
hosts, but it should of course be fixed anyway.

Cc: stable@vger.kernel.org
Reported-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-01-12 10:34:44 +01:00
Linus Torvalds
a87d1203bb Probes fixes for v6.13-rc6:
- tracing/kprobes: Fix to free trace_kprobe objects at a failure path
   in __trace_kprobe_create() function. This fixes a memory leak.
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Merge tag 'probes-fixes-v6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes fix from Masami Hiramatsu:
 "Fix to free trace_kprobe objects at a failure path in
  __trace_kprobe_create() function. This fixes a memory leak"

* tag 'probes-fixes-v6.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/kprobes: Fix to free objects when failed to copy a symbol
2025-01-11 20:34:12 -08:00
Linus Torvalds
b62cef9a5c hwmon fixes for v6.13-rc7
One patch to fix error handling in drivetemp driver.
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Merge tag 'hwmon-for-v6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "One patch to fix error handling in drivetemp driver"

* tag 'hwmon-for-v6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur
2025-01-11 11:42:48 -08:00
Linus Torvalds
05c2d1f272 block-6.13-20250111
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Merge tag 'block-6.13-20250111' of git://git.kernel.dk/linux

Pull block fix from Jens Axboe:
 "A single fix for a use-after-free in the BFQ IO scheduler"

* tag 'block-6.13-20250111' of git://git.kernel.dk/linux:
  block, bfq: fix waker_bfqq UAF after bfq_split_bfqq()
2025-01-11 11:17:08 -08:00
Linus Torvalds
52a5a22d8a io_uring-6.13-20250111
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Merge tag 'io_uring-6.13-20250111' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix for multishot timeout updates only using the updated value for
   the first invocation, not subsequent ones

 - Silence a false positive lockdep warning

 - Fix the eventfd signaling and putting RCU logic

 - Fix fault injected SQPOLL setup not clearing the task pointer in the
   error path

 - Fix local task_work looking at the SQPOLL thread rather than just
   signaling the safe variant. Again one of those theoretical issues,
   which should be closed up none the less.

* tag 'io_uring-6.13-20250111' of git://git.kernel.dk/linux:
  io_uring: don't touch sqd->thread off tw add
  io_uring/sqpoll: zero sqd->thread on tctx errors
  io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period
  io_uring: silence false positive warnings
  io_uring/timeout: fix multishot updates
2025-01-11 10:59:43 -08:00
Linus Torvalds
57162361c3 DFS (smb3 global namespace) client fix
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Merge tag '6.13-rc6-SMB3-client-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fix from Steve French:

 - fix unneeded session setup retry due to stale password e.g. for DFS
   automounts

* tag '6.13-rc6-SMB3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: sync the root session and superblock context passwords before automounting
2025-01-11 10:49:50 -08:00
Linus Torvalds
da60d1547d soc: fixes for 6.13, part 3
Over the Christmas break, a couple of devicetree fixes came in
 for Rockchips, Qualcomm and NXP/i.MX. These add some missing
 board specific properties, address build time warnings,
 
 The USB/TOG supoprt on X1 Elite regressed, so two earlier DT
 changes get reverted for now.
 
 Aside from the devicetree fixes, there is One build fix for the
 stm32 firewall driver, and a defconfig change to enable SPDIF
 support for i.MX.
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Merge tag 'soc-fixes-6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "Over the Christmas break a couple of devicetree fixes came in for
  Rockchips, Qualcomm and NXP/i.MX. These add some missing board
  specific properties, address build time warnings,

  The USB/TOG supoprt on X1 Elite regressed, so two earlier DT changes
  get reverted for now.

  Aside from the devicetree fixes, there is One build fix for the stm32
  firewall driver, and a defconfig change to enable SPDIF support for
  i.MX"

* tag 'soc-fixes-6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  firewall: remove misplaced semicolon from stm32_firewall_get_firewall
  arm64: dts: rockchip: add hevc power domain clock to rk3328
  arm64: dts: rockchip: Fix the SD card detection on NanoPi R6C/R6S
  arm64: dts: qcom: sa8775p: fix the secure device bootup issue
  Revert "arm64: dts: qcom: x1e80100: enable OTG on USB-C controllers"
  Revert "arm64: dts: qcom: x1e80100-crd: enable otg on usb ports"
  arm64: dts: qcom: x1e80100: Fix up BAR space size for PCIe6a
  Revert "arm64: dts: qcom: x1e78100-t14s: enable otg on usb-c ports"
  ARM: dts: imxrt1050: Fix clocks for mmc
  ARM: imx_v6_v7_defconfig: enable SND_SOC_SPDIF
  arm64: dts: imx95: correct the address length of netcmix_blk_ctrl
  arm64: dts: imx8-ss-audio: add fallback compatible string fsl,imx6ull-esai for esai
  arm64: dts: rockchip: rename rfkill label for Radxa ROCK 5B
  arm64: dts: rockchip: add reset-names for combphy on rk3568
  arm64: dts: qcom: sa8775p: Fix the size of 'addr_space' regions
2025-01-11 10:42:05 -08:00
Michael Ellerman
77a903cd8e MAINTAINERS: powerpc: Update my status
Maddy is taking over the day-to-day maintenance of powerpc. I will still
be around to help, and as a backup.

Re-order the main POWERPC list to put Maddy first to reflect that.

KVM/powerpc patches will be handled by Maddy via the powerpc tree with
review from Nick, so replace myself with Maddy there.

Remove myself from BPF, leaving Hari & Christophe as maintainers.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-01-10 17:19:33 -08:00
Meetakshi Setiya
20b1aa9123 smb: client: sync the root session and superblock context passwords before automounting
In some cases, when password2 becomes the working password, the
client swaps the two password fields in the root session struct, but
not in the smb3_fs_context struct in cifs_sb. DFS automounts inherit
fs context from their parent mounts. Therefore, they might end up
getting the passwords in the stale order.
The automount should succeed, because the mount function will end up
retrying with the actual password anyway. But to reduce these
unnecessary session setup retries for automounts, we can sync the
parent context's passwords with the root session's passwords before
duplicating it to the child's fs context.

Cc: stable@vger.kernel.org
Signed-off-by: Meetakshi Setiya <msetiya@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-01-10 17:55:35 -06:00
Linus Torvalds
2e3f3090bd sched_ext: Fixes for v6.13-rc6
- Fix corner case bug where ops.dispatch() couldn't extend the execution of
   the current task if SCX_OPS_ENQ_LAST is set.
 
 - Fix ops.cpu_release() not being called when a SCX task is preempted by a
   higher priority sched class task.
 
 - Fix buitin idle mask being incorrectly left as busy after an idle CPU is
   picked and kicked.
 
 - scx_ops_bypass() was unnecessarily using rq_lock() which comes with rq
   pinning related sanity checks which could trigger spuriously. Switch to
   raw_spin_rq_lock().
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Merge tag 'sched_ext-for-6.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Fix corner case bug where ops.dispatch() couldn't extend the
   execution of the current task if SCX_OPS_ENQ_LAST is set.

 - Fix ops.cpu_release() not being called when a SCX task is preempted
   by a higher priority sched class task.

 - Fix buitin idle mask being incorrectly left as busy after an idle CPU
   is picked and kicked.

 - scx_ops_bypass() was unnecessarily using rq_lock() which comes with
   rq pinning related sanity checks which could trigger spuriously.
   Switch to raw_spin_rq_lock().

* tag 'sched_ext-for-6.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: idle: Refresh idle masks during idle-to-idle transitions
  sched_ext: switch class when preempted by higher priority scheduler
  sched_ext: Replace rq_lock() to raw_spin_rq_lock() in scx_ops_bypass()
  sched_ext: keep running prev when prev->scx.slice != 0
2025-01-10 15:11:58 -08:00
Linus Torvalds
58624e4bc8 cgroup: Fixes for v6.13-rc6
All are cpuset changes:
 
 - Fix isolated CPUs leaking into sched domains.
 
 - Remove now unnecessary kernfs active break which can trigger a warning.
 
 - Comment updates.
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Merge tag 'cgroup-for-6.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:
 "Cpuset fixes:

   - Fix isolated CPUs leaking into sched domains

   - Remove now unnecessary kernfs active break which can trigger a
     warning

   - Comment updates"

* tag 'cgroup-for-6.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup/cpuset: remove kernfs active break
  cgroup/cpuset: Prevent leakage of isolated CPUs into sched domains
  cgroup/cpuset: Remove stale text
2025-01-10 15:03:02 -08:00
Linus Torvalds
257a8be4e9 workqueue: Fixes for v6.13-rc6
- Add a WARN_ON_ONCE() on queue_delayed_work_on() on an offline CPU as such
   work items won't get executed till the CPU comes back online.
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Merge tag 'wq-for-6.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue fix from Tejun Heo:

 - Add a WARN_ON_ONCE() on queue_delayed_work_on() on an offline CPU as
   such work items won't get executed till the CPU comes back online

* tag 'wq-for-6.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: warn if delayed_work is queued to an offlined cpu.
2025-01-10 14:52:30 -08:00
Linus Torvalds
da13af8392 Thermal control fix for 6.13-rc7
Fix an OF node leak in the code parsing thermal zone DT
 properties (Joe Hattori).
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Merge tag 'thermal-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Fix an OF node leak in the code parsing thermal zone DT properties
  (Joe Hattori)"

* tag 'thermal-6.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: of: fix OF node leak in of_thermal_zone_find()
2025-01-10 14:46:49 -08:00