Commit Graph

1324542 Commits

Author SHA1 Message Date
Linus Torvalds
4c538044ee vsprintf: don't make the 'binary' version pack small integer arguments
The strange vbin_printf / bstr_printf interface used to save one- and
two-byte printf numerical arguments into their packed format.

That's more than a bit strange since the argument buffer is supposed to
be an array of 'u32' words, and it's also very different from how the
source of the data (varargs) work - which always do the normal integer
type conversions, so 'char' and 'short' are always passed as int-sized
anyway.

This odd packing causes extra code complexity, and it really isn't worth
it, since the space savings are simply not there: it only happens for
formats like '%hd' (short) and '%hhd' (char), which are very rare
indeed.

In fact, the only other user of this interface seems to be the bpf
helper code (bpf_bprintf_prepare()), and Alexei points out that that
case doesn't support those truncated integer formatting options at all
in the first place.

As a result, bpf_bprintf_prepare() doesn't need any changes for this,
and TRACE_BPRINT uses 'vbin_printf()' -> 'bstr_printf()' for the
formatting and hopefully doesn't expose the odd packing any other way
(knock wood).

Link: https://lore.kernel.org/all/CAADnVQJy65oOubjxM-378O3wDfhuwg8TGa9hc-cTv6NmmUSykQ@mail.gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:52:34 -08:00
Linus Torvalds
8d4826cc8a vsnprintf: collapse the number format state into one single state
We'll squirrel away the size of the number in 'struct fmt' instead.

We have two fairly separate state structures: the 'decode state' is in
'struct fmt', while the 'printout format' is in 'printf_spec'.  Both
structures are small enough to pass around in registers even across
function boundaries (ie two words), even on 32-bit machines.

The goal here is to avoid the case statements on the format states,
which generate either deep conditionals or jump tables, while also
keeping the state size manageable.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:36 -08:00
Linus Torvalds
2b76e39fca vsnprintf: mark the indirect width and precision cases unlikely
Make the format_decode() code generation easier to look at by getting
the strange and unlikely cases out of line.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
f372b2256a vsnprintf: inline skip_atoi() again
At some point skip_atoi() had been marked 'noinline_for_stack', but it
turns out that this is now a pessimization, and not inlining it actually
results in a stack frame in format decoding due to the call and thus
hurts stack usage rather than helping.

With the simplistic atoi function inlined, the format decoding now needs
no frame at all.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
614d13462d vsprintf: deal with format specifiers with a lookup table
We did the flags as an array earlier, they had simpler rules.  The final
format specifiers are a bit more complex since they have more fields to
deal with, and we want to handle the length modifiers at the same time.
But like the flags, we're better off just making it a data-driven table
rather than some case statement.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
312f48b2e2 vsprintf: deal with format flags with a simple lookup table
Rather than a case statement, just look up the printf format flags
(justification, zero-padding etc) using a small table.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
938df695e9 vsprintf: associate the format state with the format pointer
The vsnprintf() code is written as a state machine as it walks the
format pointer, but for various historical reasons the state is oddly
named and was encoded as the 'type' field in the 'struct printf_spec'.

That naming came from the fact that the states used to not just encode
the state of the state machine, but also the various integer types that
would then be printed out.

Let's make the state machine more obvious, and actually call it 'state',
and associate it with the format pointer itself, rather than the
'printf_spec' that contains the currently decoded formatting specs.

This also removes the bit packing from printf_spec, which makes it much
easier on the compiler.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
9e0e6d8a32 vsprintf: fix calling convention for format_decode()
Every single caller wants to know what the next format location is, but
instead the function returned the length of the processed part and so
every single return statement in the format_decode() function was
instead subtracting the start of the format string.

The callers that that did want to know the length (in addition to the
end of the format processing) already had to save off the start of the
format string anyway.  So this was all just doing extra processing both
on the caller and callee sides.

Just change the calling convention to return the end of the format
processing, making everything simpler (and preparing for yet more
simplification to come).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
03d23941bf vsprintf: avoid nested switch statement on same variable
Now that we have simplified the number format types, the top-level
switch table can easily just handle all the remaining cases, and we
don't need to have a case statement with a conditional on the same
expression as the switch statement.

We do want to fall through to the common 'number()' case, but that's
trivially done by making the other case statements use 'continue'
instead of 'break'.  They are just looping back to the top, after all.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
be503db4d0 vsprintf: simplify number handling
Instead of dealing with all the different special types (size_t,
unsigned char, ptrdiff_t..) just deal with the size of the integer type
and the sign.

This avoids a lot of unnecessary case statements, and the games we play
with the value of the 'SIGN' flags value

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-23 11:18:35 -08:00
Linus Torvalds
4bbf9020be Linux 6.13-rc4 2024-12-22 13:22:21 -08:00
Linus Torvalds
b1fdbe77be KVM x86 fixes for 6.13:
- Disable AVIC on SNP-enabled systems that don't allow writes to the virtual
   APIC page, as such hosts will hit unexpected RMP #PFs in the host when
   running VMs of any flavor.
 
 - Fix a WARN in the hypercall completion path due to KVM trying to determine
   if a guest with protected register state is in 64-bit mode (KVM's ABI is to
   assume such guests only make hypercalls in 64-bit mode).
 
 - Allow the guest to write to supported bits in MSR_AMD64_DE_CFG to fix a
   regression with Windows guests, and because KVM's read-only behavior appears
   to be entirely made up.
 
 - Treat TDP MMU faults as spurious if the faulting access is allowed given the
   existing SPTE.  This fixes a benign WARN (other than the WARN itself) due to
   unexpectedly replacing a writable SPTE with a read-only SPTE.
 
 - Emit a warning when KVM is configured with ignore_msrs=1 and also to hide the
   MSRs that the guest is looking for from the kernel logs.  ignore_msrs can
   trick guests into assuming that certain processor features are present, and
   this in turn leads to bogus bug reports.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM x86 fixes from Paolo Bonzini:

 - Disable AVIC on SNP-enabled systems that don't allow writes to the
   virtual APIC page, as such hosts will hit unexpected RMP #PFs in the
   host when running VMs of any flavor.

 - Fix a WARN in the hypercall completion path due to KVM trying to
   determine if a guest with protected register state is in 64-bit mode
   (KVM's ABI is to assume such guests only make hypercalls in 64-bit
   mode).

 - Allow the guest to write to supported bits in MSR_AMD64_DE_CFG to fix
   a regression with Windows guests, and because KVM's read-only
   behavior appears to be entirely made up.

 - Treat TDP MMU faults as spurious if the faulting access is allowed
   given the existing SPTE. This fixes a benign WARN (other than the
   WARN itself) due to unexpectedly replacing a writable SPTE with a
   read-only SPTE.

 - Emit a warning when KVM is configured with ignore_msrs=1 and also to
   hide the MSRs that the guest is looking for from the kernel logs.
   ignore_msrs can trick guests into assuming that certain processor
   features are present, and this in turn leads to bogus bug reports.

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: let it be known that ignore_msrs is a bad idea
  KVM: VMX: don't include '<linux/find.h>' directly
  KVM: x86/mmu: Treat TDP MMU faults as spurious if access is already allowed
  KVM: SVM: Allow guest writes to set MSR_AMD64_DE_CFG bits
  KVM: x86: Play nice with protected guests in complete_hypercall_exit()
  KVM: SVM: Disable AVIC on SNP-enabled system without HvInUseWrAllowed feature
2024-12-22 12:16:41 -08:00
Paolo Bonzini
8afa5b10af KVM x86 fixes for 6.13:
- Disable AVIC on SNP-enabled systems that don't allow writes to the virtual
    APIC page, as such hosts will hit unexpected RMP #PFs in the host when
    running VMs of any flavor.
 
  - Fix a WARN in the hypercall completion path due to KVM trying to determine
    if a guest with protected register state is in 64-bit mode (KVM's ABI is to
    assume such guests only make hypercalls in 64-bit mode).
 
  - Allow the guest to write to supported bits in MSR_AMD64_DE_CFG to fix a
    regression with Windows guests, and because KVM's read-only behavior appears
    to be entirely made up.
 
  - Treat TDP MMU faults as spurious if the faulting access is allowed given the
    existing SPTE.  This fixes a benign WARN (other than the WARN itself) due to
    unexpectedly replacing a writable SPTE with a read-only SPTE.
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Merge tag 'kvm-x86-fixes-6.13-rcN' of https://github.com/kvm-x86/linux into HEAD

KVM x86 fixes for 6.13:

 - Disable AVIC on SNP-enabled systems that don't allow writes to the virtual
   APIC page, as such hosts will hit unexpected RMP #PFs in the host when
   running VMs of any flavor.

 - Fix a WARN in the hypercall completion path due to KVM trying to determine
   if a guest with protected register state is in 64-bit mode (KVM's ABI is to
   assume such guests only make hypercalls in 64-bit mode).

 - Allow the guest to write to supported bits in MSR_AMD64_DE_CFG to fix a
   regression with Windows guests, and because KVM's read-only behavior appears
   to be entirely made up.

 - Treat TDP MMU faults as spurious if the faulting access is allowed given the
   existing SPTE.  This fixes a benign WARN (other than the WARN itself) due to
   unexpectedly replacing a writable SPTE with a read-only SPTE.
2024-12-22 12:07:16 -05:00
Paolo Bonzini
398b7b6cb9 KVM: x86: let it be known that ignore_msrs is a bad idea
When running KVM with ignore_msrs=1 and report_ignored_msrs=0, the user has
no clue that that the guest is being lied to.  This may cause bug reports
such as https://gitlab.com/qemu-project/qemu/-/issues/2571, where enabling
a CPUID bit in QEMU caused Linux guests to try reading MSR_CU_DEF_ERR; and
being lied about the existence of MSR_CU_DEF_ERR caused the guest to assume
other things about the local APIC which were not true:

  Sep 14 12:02:53 kernel: mce: [Firmware Bug]: Your BIOS is not setting up LVT offset 0x2 for deferred error IRQs correctly.
  Sep 14 12:02:53 kernel: unchecked MSR access error: RDMSR from 0x852 at rIP: 0xffffffffb548ffa7 (native_read_msr+0x7/0x40)
  Sep 14 12:02:53 kernel: Call Trace:
  ...
  Sep 14 12:02:53 kernel:  native_apic_msr_read+0x20/0x30
  Sep 14 12:02:53 kernel:  setup_APIC_eilvt+0x47/0x110
  Sep 14 12:02:53 kernel:  mce_amd_feature_init+0x485/0x4e0
  ...
  Sep 14 12:02:53 kernel: [Firmware Bug]: cpu 0, try to use APIC520 (LVT offset 2) for vector 0xf4, but the register is already in use for vector 0x0 on this cpu

Without reported_ignored_msrs=0 at least the host kernel log will contain
enough information to avoid going on a wild goose chase.  But if reports
about individual MSR accesses are being silenced too, at least complain
loudly the first time a VM is started.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-22 12:06:01 -05:00
Wolfram Sang
37d1d99b88 KVM: VMX: don't include '<linux/find.h>' directly
The header clearly states that it does not want to be included directly,
only via '<linux/bitmap.h>'. Replace the include accordingly.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Message-ID: <20241217070539.2433-2-wsa+renesas@sang-engineering.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-22 12:04:57 -05:00
Linus Torvalds
bcde95ce32 Devicetree fixes for 6.13, part 1:
- Disable #address-cells/#size-cells warning on coreboot (Chromebooks)
   platforms
 
 - Add missing root #address-cells/#size-cells in default empty DT
 
 - Fix uninitialized variable in of_irq_parse_one()
 
 - Fix interrupt-map cell length check in of_irq_parse_imap_parent()
 
 - Fix refcount handling in __of_get_dma_parent()
 
 - Fix error path in of_parse_phandle_with_args_map()
 
 - Fix dma-ranges handling with flags cells
 
 - Drop explicit fw_devlink handling of 'interrupt-parent'
 
 - Fix "compression" typo in fixed-partitions binding
 
 - Unify "fsl,liodn" property type definitions
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Merge tag 'devicetree-fixes-for-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Disable #address-cells/#size-cells warning on coreboot (Chromebooks)
   platforms

 - Add missing root #address-cells/#size-cells in default empty DT

 - Fix uninitialized variable in of_irq_parse_one()

 - Fix interrupt-map cell length check in of_irq_parse_imap_parent()

 - Fix refcount handling in __of_get_dma_parent()

 - Fix error path in of_parse_phandle_with_args_map()

 - Fix dma-ranges handling with flags cells

 - Drop explicit fw_devlink handling of 'interrupt-parent'

 - Fix "compression" typo in fixed-partitions binding

 - Unify "fsl,liodn" property type definitions

* tag 'devicetree-fixes-for-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Add coreboot firmware to excluded default cells list
  of/irq: Fix using uninitialized variable @addr_len in API of_irq_parse_one()
  of/irq: Fix interrupt-map cell length check in of_irq_parse_imap_parent()
  of: Fix refcount leakage for OF node returned by __of_get_dma_parent()
  of: Fix error path in of_parse_phandle_with_args_map()
  dt-bindings: mtd: fixed-partitions: Fix "compression" typo
  of: Add #address-cells/#size-cells in the device-tree root empty node
  dt-bindings: Unify "fsl,liodn" type definitions
  of: address: Preserve the flags portion on 1:1 dma-ranges mapping
  of/unittest: Add empty dma-ranges address translation tests
  of: property: fw_devlink: Do not use interrupt-parent directly
2024-12-22 08:40:23 -08:00
Linus Torvalds
48f506ad0b soc: fixes for 6.13, part 2
Two more small fixes, correcting the cacheline size on Raspberry Pi 5
 and fixing a logic mistake in the microchip mpfs firmware driver.
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Merge tag 'soc-fixes-6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "Two more small fixes, correcting the cacheline size on Raspberry Pi 5
  and fixing a logic mistake in the microchip mpfs firmware driver"

* tag 'soc-fixes-6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  arm64: dts: broadcom: Fix L2 linesize for Raspberry Pi 5
  firmware: microchip: fix UL_IAP lock check in mpfs_auto_update_state()
2024-12-21 15:45:06 -08:00
Linus Torvalds
4aa748dd1a 25 hotfixes. 16 are cc:stable. 19 are MM and 6 are non-MM.
The usual bunch of singletons and doubletons - please see the relevant
 changelogs for details.
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Merge tag 'mm-hotfixes-stable-2024-12-21-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "25 hotfixes.  16 are cc:stable.  19 are MM and 6 are non-MM.

  The usual bunch of singletons and doubletons - please see the relevant
  changelogs for details"

* tag 'mm-hotfixes-stable-2024-12-21-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (25 commits)
  mm: huge_memory: handle strsep not finding delimiter
  alloc_tag: fix set_codetag_empty() when !CONFIG_MEM_ALLOC_PROFILING_DEBUG
  alloc_tag: fix module allocation tags populated area calculation
  mm/codetag: clear tags before swap
  mm/vmstat: fix a W=1 clang compiler warning
  mm: convert partially_mapped set/clear operations to be atomic
  nilfs2: fix buffer head leaks in calls to truncate_inode_pages()
  vmalloc: fix accounting with i915
  mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()
  fork: avoid inappropriate uprobe access to invalid mm
  nilfs2: prevent use of deleted inode
  zram: fix uninitialized ZRAM not releasing backing device
  zram: refuse to use zero sized block device as backing device
  mm: use clear_user_(high)page() for arch with special user folio handling
  mm: introduce cpu_icache_is_aliasing() across all architectures
  mm: add RCU annotation to pte_offset_map(_lock)
  mm: correctly reference merged VMA
  mm: use aligned address in copy_user_gigantic_page()
  mm: use aligned address in clear_gigantic_page()
  mm: shmem: fix ShmemHugePages at swapout
  ...
2024-12-21 15:31:56 -08:00
Steven Rostedt
e84a3bf7f4 staging: gpib: Fix allyesconfig build failures
My tests run an allyesconfig build and it failed with the following errors:

    LD [M]  samples/kfifo/dma-example.ko
  ld.lld: error: undefined symbol: nec7210_board_reset
  ld.lld: error: undefined symbol: nec7210_read
  ld.lld: error: undefined symbol: nec7210_write

It appears that some modules call the function nec7210_board_reset()
that is defined in nec7210.c.  In an allyesconfig build, these other
modules are built in.  But the file that holds nec7210_board_reset()
has:

  obj-m += nec7210.o

Where that "-m" means it only gets built as a module. With the other
modules built in, they have no access to nec7210_board_reset() and the build
fails.

This isn't the only function. After fixing that one, I hit another:

  ld.lld: error: undefined symbol: push_gpib_event
  ld.lld: error: undefined symbol: gpib_match_device_path

Where push_gpib_event() was also used outside of the file it was defined
in, and that file too only was built as a module.

Since the directory that nec7210.c is only traversed when
CONFIG_GPIB_NEC7210 is set, and the directory with gpib_common.c is only
traversed when CONFIG_GPIB_COMMON is set, use those configs as the
option to build those modules.  When it is an allyesconfig, then they
will both be built in and their functions will be available to the other
modules that are also built in.

Fixes: 3ba84ac69b ("staging: gpib: Add nec7210 GPIB chip driver")
Fixes: 9dde4559e9 ("staging: gpib: Add GPIB common core driver")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-21 11:30:13 -08:00
Linus Torvalds
a016546ba6 Kbuild fixes for v6.13 (2nd)
- Remove stale code in usr/include/headers_check.pl
 
  - Fix issues in the user-mode-linux Debian package
 
  - Fix false-positive "export twice" errors in modpost
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Merge tag 'kbuild-fixes-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Remove stale code in usr/include/headers_check.pl

 - Fix issues in the user-mode-linux Debian package

 - Fix false-positive "export twice" errors in modpost

* tag 'kbuild-fixes-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  modpost: distinguish same module paths from different dump files
  kbuild: deb-pkg: Do not install maint scripts for arch 'um'
  kbuild: deb-pkg: add debarch for ARCH=um
  kbuild: Drop support for include/asm-<arch> in headers_check.pl
2024-12-21 11:24:32 -08:00
Linus Torvalds
9c707ba99f BPF fixes:
- Fix inlining of bpf_get_smp_processor_id helper for !CONFIG_SMP
   systems (Andrea Righi)
 
 - Fix BPF USDT selftests helper code to use asm constraint "m"
   for LoongArch (Tiezhu Yang)
 
 - Fix BPF selftest compilation error in get_uprobe_offset when
   PROCMAP_QUERY is not defined (Jerome Marchand)
 
 - Fix BPF bpf_skb_change_tail helper when used in context of
   BPF sockmap to handle negative skb header offsets (Cong Wang)
 
 - Several fixes to BPF sockmap code, among others, in the area
   of socket buffer accounting (Levi Zim, Zijian Zhang, Cong Wang)
 
 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull BPF fixes from Daniel Borkmann:

 - Fix inlining of bpf_get_smp_processor_id helper for !CONFIG_SMP
   systems (Andrea Righi)

 - Fix BPF USDT selftests helper code to use asm constraint "m" for
   LoongArch (Tiezhu Yang)

 - Fix BPF selftest compilation error in get_uprobe_offset when
   PROCMAP_QUERY is not defined (Jerome Marchand)

 - Fix BPF bpf_skb_change_tail helper when used in context of BPF
   sockmap to handle negative skb header offsets (Cong Wang)

 - Several fixes to BPF sockmap code, among others, in the area of
   socket buffer accounting (Levi Zim, Zijian Zhang, Cong Wang)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Test bpf_skb_change_tail() in TC ingress
  selftests/bpf: Introduce socket_helpers.h for TC tests
  selftests/bpf: Add a BPF selftest for bpf_skb_change_tail()
  bpf: Check negative offsets in __bpf_skb_min_len()
  tcp_bpf: Fix copied value in tcp_bpf_sendmsg
  skmsg: Return copied bytes in sk_msg_memcopy_from_iter
  tcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection
  tcp_bpf: Charge receive socket buffer in bpf_tcp_ingress()
  selftests/bpf: Fix compilation error in get_uprobe_offset()
  selftests/bpf: Use asm constraint "m" for LoongArch
  bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP
2024-12-21 11:07:19 -08:00
Linus Torvalds
876685ce5e [GIT PULL for 6.13-rc4] media fixes
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Merge tag 'media/v6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - fix a clang build issue with mediatec vcodec

 - add missing variable initialization to dib3000mb write function

* tag 'media/v6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: mediatek: vcodec: mark vdec_vp9_slice_map_counts_eob_coef noinline
  media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg
2024-12-21 10:56:34 -08:00
Linus Torvalds
a99b4a369a PCI fixes for Linux 6.13
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Merge tag 'pci-v6.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI fixes from Krzysztof Wilczyński:
 "Two small patches that are important for fixing boot time hang on
  Intel JHL7540 'Titan Ridge' platforms equipped with a Thunderbolt
  controller.

  The boot time issue manifests itself when a PCI Express bandwidth
  control is unnecessarily enabled on the Thunderbolt controller
  downstream ports, which only supports a link speed of 2.5 GT/s in
  accordance with USB4 v2 specification (p. 671, sec. 11.2.1, "PCIe
  Physical Layer Logical Sub-block").

  As such, there is no need to enable bandwidth control on such
  downstream port links, which also works around the issue.

  Both patches were tested by the original reporter on the hardware on
  which the failure origin golly manifested itself. Both fixes were
  proven to resolve the reported boot hang issue, and both patches have
  been in linux-next this week with no reported problems"

* tag 'pci-v6.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  PCI/bwctrl: Enable only if more than one speed is supported
  PCI: Honor Max Link Speed when determining supported speeds
2024-12-21 10:51:04 -08:00
Linus Torvalds
78b1346123 Power management fixes for 6.13-rc4
- Detect preferred core support in amd-pstate  before driver
    registration to avoid initialization ordering issues (K Prateek
    Nayak).
 
  - Fix issues with with boost numerator handling in amd-pstate leading
    to inconsistently programmed CPPC max performance values (Mario
    Limonciello).
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Merge tag 'pm-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix some amd-pstate driver issues:

   - Detect preferred core support in amd-pstate before driver
     registration to avoid initialization ordering issues (K Prateek
     Nayak)

   - Fix issues with with boost numerator handling in amd-pstate leading
     to inconsistently programmed CPPC max performance values (Mario
     Limonciello)"

* tag 'pm-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq/amd-pstate: Use boost numerator for upper bound of frequencies
  cpufreq/amd-pstate: Store the boost numerator as highest perf again
  cpufreq/amd-pstate: Detect preferred core support before driver registration
2024-12-21 10:47:47 -08:00
Linus Torvalds
be6bb3619e Thermal control fixes for 6.13-rc4
Fix two issues with the user thermal thresholds feature introduced
 in this development cycle (Daniel Lezcano).
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Merge tag 'thermal-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "Fix two issues with the user thermal thresholds feature introduced in
  this development cycle (Daniel Lezcano)"

* tag 'thermal-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal/thresholds: Fix boundaries and detection routine
  thermal/thresholds: Fix uapi header macros leading to a compilation error
2024-12-21 10:44:44 -08:00
Linus Torvalds
5100b6f9e7 ACPI fix for 6.13-rc4
Unbreak ACPI EC support on LoongArch that has been broken earlier
 in this development cycle (Huacai Chen).
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Merge tag 'acpi-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Unbreak ACPI EC support on LoongArch that has been broken earlier in
  this development cycle (Huacai Chen)"

* tag 'acpi-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Enable EC support on LoongArch by default
2024-12-21 10:42:35 -08:00
Linus Torvalds
baa172c77a four smb3 client fixes
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Merge tag '6.13-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - fix regression in display of write stats

 - fix rmmod failure with network namespaces

 - two minor cleanups

* tag '6.13-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: fix bytes written value in /proc/fs/cifs/Stats
  smb: client: fix TCP timers deadlock after rmmod
  smb: client: Deduplicate "select NETFS_SUPPORT" in Kconfig
  smb: use macros instead of constants for leasekey size and default cifsattrs value
2024-12-21 09:35:18 -08:00
Linus Torvalds
4a5da3f5d3 NFS client bugfixes for Linux 6.13
Bugfixes:
 - NFS/pnfs: Fix a live lock between recalled layouts and layoutget
 - Fix a build warning about an undeclared symbol 'nfs_idmap_cache_timeout'
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Merge tag 'nfs-for-6.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:

 - NFS/pnfs: Fix a live lock between recalled layouts and layoutget

 - Fix a build warning about an undeclared symbol 'nfs_idmap_cache_timeout'

* tag 'nfs-for-6.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  fs/nfs: fix missing declaration of nfs_idmap_cache_timeout
  NFS/pnfs: Fix a live lock between recalled layouts and layoutget
2024-12-21 09:32:24 -08:00
Linus Torvalds
7684392f17 A handful of important CephFS fixes from Max, Alex and myself: memory
corruption due to a buffer overrun, potential infinite loop and several
 memory leaks on the error paths.  All but one marked for stable.
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Merge tag 'ceph-for-6.13-rc4' of https://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A handful of important CephFS fixes from Max, Alex and myself: memory
  corruption due to a buffer overrun, potential infinite loop and
  several memory leaks on the error paths. All but one marked for
  stable"

* tag 'ceph-for-6.13-rc4' of https://github.com/ceph/ceph-client:
  ceph: allocate sparse_ext map only for sparse reads
  ceph: fix memory leak in ceph_direct_read_write()
  ceph: improve error handling and short/overflow-read logic in __ceph_sync_read()
  ceph: validate snapdirname option length when mounting
  ceph: give up on paths longer than PATH_MAX
  ceph: fix memory leaks in __ceph_sync_read()
2024-12-21 09:29:46 -08:00
Masahiro Yamada
9435dc77a3 modpost: distinguish same module paths from different dump files
Since commit 13b25489b6 ("kbuild: change working directory to external
module directory with M="), module paths are always relative to the top
of the external module tree.

The module paths recorded in Module.symvers are no longer globally unique
when they are passed via KBUILD_EXTRA_SYMBOLS for building other external
modules, which may result in false-positive "exported twice" errors.
Such errors should not occur because external modules should be able to
override in-tree modules.

To address this, record the dump file path in struct module and check it
when searching for a module.

Fixes: 13b25489b6 ("kbuild: change working directory to external module directory with M=")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Closes: https://lore.kernel.org/all/eb21a546-a19c-40df-b821-bbba80f19a3d@nvidia.com/
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
2024-12-21 12:42:10 +09:00
Nicolas Schier
54956567a0 kbuild: deb-pkg: Do not install maint scripts for arch 'um'
Stop installing Debian maintainer scripts when building a
user-mode-linux Debian package.

Debian maintainer scripts are used for e.g. requesting rebuilds of
initrd, rebuilding DKMS modules and updating of grub configuration.  As
all of this is not relevant for UML but also may lead to failures while
processing the kernel hooks, do no more install maintainer scripts for
the UML package.

Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-12-21 12:42:10 +09:00
Masahiro Yamada
a34e92d2e8 kbuild: deb-pkg: add debarch for ARCH=um
'make ARCH=um bindeb-pkg' shows the following warning.

  $ make ARCH=um bindeb-pkg
     [snip]
    GEN     debian

  ** ** **  WARNING  ** ** **

  Your architecture doesn't have its equivalent
  Debian userspace architecture defined!
  Falling back to the current host architecture (amd64).
  Please add support for um to ./scripts/package/mkdebian ...

This commit hard-codes i386/amd64 because UML is only supported for x86.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2024-12-21 12:42:04 +09:00
Geert Uytterhoeven
d67393f4d2 kbuild: Drop support for include/asm-<arch> in headers_check.pl
"include/asm-<arch>" was replaced by "arch/<arch>/include/asm" a long
time ago.  All assembler header files are now included using
"#include <asm/*>", so there is no longer a need to rewrite paths.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-12-21 11:43:17 +09:00
Cong Wang
4a58963d10 selftests/bpf: Test bpf_skb_change_tail() in TC ingress
Similarly to the previous test, we also need a test case to cover
positive offsets as well, TC is an excellent hook for this.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Zijian Zhang <zijianzhang@bytedance.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-5-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Cong Wang
472759c9f5 selftests/bpf: Introduce socket_helpers.h for TC tests
Pull socket helpers out of sockmap_helpers.h so that they can be reused
for TC tests as well. This prepares for the next patch.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-4-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Cong Wang
9ee0c7b865 selftests/bpf: Add a BPF selftest for bpf_skb_change_tail()
As requested by Daniel, we need to add a selftest to cover
bpf_skb_change_tail() cases in skb_verdict. Here we test trimming,
growing and error cases, and validate its expected return values and the
expected sizes of the payload.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-3-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Cong Wang
9ecc4d858b bpf: Check negative offsets in __bpf_skb_min_len()
skb_network_offset() and skb_transport_offset() can be negative when
they are called after we pull the transport header, for example, when
we use eBPF sockmap at the point of ->sk_data_ready().

__bpf_skb_min_len() uses an unsigned int to get these offsets, this
leads to a very large number which then causes bpf_skb_change_tail()
failed unexpectedly.

Fix this by using a signed int to get these offsets and ensure the
minimum is at least zero.

Fixes: 5293efe62d ("bpf: add bpf_skb_change_tail helper")
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-2-xiyou.wangcong@gmail.com
2024-12-20 23:13:31 +01:00
Linus Torvalds
499551201b Fix a sparse warning in the arm64 signal code dealing with the user
shadow stack register, GCSPR_EL0.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Fix a sparse warning in the arm64 signal code dealing with the user
  shadow stack register, GCSPR_EL0"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/signal: Silence sparse warning storing GCSPR_EL0
2024-12-20 14:10:01 -08:00
Levi Zim
5153a75ef3 tcp_bpf: Fix copied value in tcp_bpf_sendmsg
bpf kselftest sockhash::test_txmsg_cork_hangs in test_sockmap.c triggers a
kernel NULL pointer dereference:

BUG: kernel NULL pointer dereference, address: 0000000000000008
 ? __die_body+0x6e/0xb0
 ? __die+0x8b/0xa0
 ? page_fault_oops+0x358/0x3c0
 ? local_clock+0x19/0x30
 ? lock_release+0x11b/0x440
 ? kernelmode_fixup_or_oops+0x54/0x60
 ? __bad_area_nosemaphore+0x4f/0x210
 ? mmap_read_unlock+0x13/0x30
 ? bad_area_nosemaphore+0x16/0x20
 ? do_user_addr_fault+0x6fd/0x740
 ? prb_read_valid+0x1d/0x30
 ? exc_page_fault+0x55/0xd0
 ? asm_exc_page_fault+0x2b/0x30
 ? splice_to_socket+0x52e/0x630
 ? shmem_file_splice_read+0x2b1/0x310
 direct_splice_actor+0x47/0x70
 splice_direct_to_actor+0x133/0x300
 ? do_splice_direct+0x90/0x90
 do_splice_direct+0x64/0x90
 ? __ia32_sys_tee+0x30/0x30
 do_sendfile+0x214/0x300
 __se_sys_sendfile64+0x8e/0xb0
 __x64_sys_sendfile64+0x25/0x30
 x64_sys_call+0xb82/0x2840
 do_syscall_64+0x75/0x110
 entry_SYSCALL_64_after_hwframe+0x4b/0x53

This is caused by tcp_bpf_sendmsg() returning a larger value(12289) than
size (8192), which causes the while loop in splice_to_socket() to release
an uninitialized pipe buf.

The underlying cause is that this code assumes sk_msg_memcopy_from_iter()
will copy all bytes upon success but it actually might only copy part of
it.

This commit changes it to use the real copied bytes.

Signed-off-by: Levi Zim <rsworktech@outlook.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241130-tcp-bpf-sendmsg-v1-2-bae583d014f3@outlook.com
2024-12-20 22:53:36 +01:00
Levi Zim
fdf478d236 skmsg: Return copied bytes in sk_msg_memcopy_from_iter
Previously sk_msg_memcopy_from_iter returns the copied bytes from the
last copy_from_iter{,_nocache} call upon success.

This commit changes it to return the total number of copied bytes on
success.

Signed-off-by: Levi Zim <rsworktech@outlook.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241130-tcp-bpf-sendmsg-v1-1-bae583d014f3@outlook.com
2024-12-20 22:53:36 +01:00
Linus Torvalds
d74276290c hwmon fixes for v6.13-rc4
* Fix reporting of negative temperature, current, and voltage values
   in tmp513 driver
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Merge tag 'hwmon-for-v6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix reporting of negative temperature, current, and voltage values in
   the tmp513 driver

* tag 'hwmon-for-v6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (tmp513) Fix interpretation of values of Temperature Result and Limit Registers
  hwmon: (tmp513) Fix Current Register value interpretation
  hwmon: (tmp513) Fix interpretation of values of Shunt Voltage and Limit Registers
2024-12-20 13:48:41 -08:00
Rob Herring (Arm)
8600058ba2 of: Add coreboot firmware to excluded default cells list
Google Juniper and other Chromebook platforms have a very old bootloader
which populates /firmware node without proper address/size-cells leading
to warnings:

  Missing '#address-cells' in /firmware
  WARNING: CPU: 0 PID: 1 at drivers/of/base.c:106 of_bus_n_addr_cells+0x90/0xf0
  Modules linked in:
  CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0 #1 933ab9971ff4d5dc58cb378a96f64c7f72e3454d
  Hardware name: Google juniper sku16 board (DT)
  ...
  Missing '#size-cells' in /firmware
  WARNING: CPU: 0 PID: 1 at drivers/of/base.c:133 of_bus_n_size_cells+0x90/0xf0
  Modules linked in:
  CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.12.0 #1 933ab9971ff4d5dc58cb378a96f64c7f72e3454d
  Tainted: [W]=WARN
  Hardware name: Google juniper sku16 board (DT)

These platform won't receive updated bootloader/firmware, so add an
exclusion for platforms with a "coreboot" compatible node. While this is
wider than necessary, that's the easiest fix and it doesn't doesn't
matter if we miss checking other platforms using coreboot.

We may revisit this later and address with a fixup to the DT itself.

Reported-by: Sasha Levin <sashal@kernel.org>
Closes: https://lore.kernel.org/all/Z0NUdoG17EwuCigT@sashalap/
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chen-Yu Tsai <wenst@chromium.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-12-20 15:39:22 -06:00
Linus Torvalds
11167b29e5 block-6.13-20241220
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Merge tag 'block-6.13-20241220' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - Minor cleanups for bdev/nvme using the helpers introduced

 - Revert of a deadlock fix that still needs more work

 - Fix a UAF of hctx in the cpu hotplug code

* tag 'block-6.13-20241220' of git://git.kernel.dk/linux:
  block: avoid to reuse `hctx` not removed from cpuhp callback list
  block: Revert "block: Fix potential deadlock while freezing queue and acquiring sysfs_lock"
  nvme: use blk_validate_block_size() for max LBA check
  block/bdev: use helper for max block size check
2024-12-20 13:37:58 -08:00
Linus Torvalds
7c05bd9230 io_uring-6.13-20241220
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Merge tag 'io_uring-6.13-20241220' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix for a file ref leak for registered ring fds

 - Turn the ->timeout_lock into a raw spinlock, as it nests under the
   io-wq lock which is a raw spinlock as it's called from the scheduler
   side

 - Limit ring resizing to DEFER_TASKRUN for now. We will broaden this in
   the future, but for now, ensure that it's only feasible on rings with
   a single user

 - Add sanity check for io-wq enqueuing

* tag 'io_uring-6.13-20241220' of git://git.kernel.dk/linux:
  io_uring: check if iowq is killed before queuing
  io_uring/register: limit ring resizing to DEFER_TASKRUN
  io_uring: Fix registered ring file refcount leak
  io_uring: make ctx->timeout_lock a raw spinlock
2024-12-20 13:32:43 -08:00
Linus Torvalds
e9b8ffafd2 USB / Thunderbolt fixes for 6.13-rc4
Here are some important, and small, fixes for USB and Thunderbolt issues
 that have come up in the -rc releases.  And some new device ids for good
 measure.  Included in here are:
   - Much reported xhci bugfix for usb-storage devices (and other devices
     as well, tripped me up on a video camera)
   - thunderbolt fixes for some small reported issues
   - new usb-serial device ids
 
 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 'usb-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt fixes from Greg KH:
 "Here are some important, and small, fixes for USB and Thunderbolt
  issues that have come up in the -rc releases. And some new device ids
  for good measure. Included in here are:

   - Much reported xhci bugfix for usb-storage devices (and other
     devices as well, tripped me up on a video camera)

   - thunderbolt fixes for some small reported issues

   - new usb-serial device ids

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

* tag 'usb-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: xhci: fix ring expansion regression in 6.13-rc1
  xhci: Turn NEC specific quirk for handling Stop Endpoint errors generic
  thunderbolt: Improve redrive mode handling
  USB: serial: option: add Telit FE910C04 rmnet compositions
  USB: serial: option: add MediaTek T7XX compositions
  USB: serial: option: add Netprisma LCUK54 modules for WWAN Ready
  USB: serial: option: add MeiG Smart SLM770A
  USB: serial: option: add TCL IK512 MBIM & ECM
  thunderbolt: Don't display nvm_version unless upgrade supported
  thunderbolt: Add support for Intel Panther Lake-M/P
2024-12-20 11:09:40 -08:00
Linus Torvalds
5127e1495b spi: Fix for v6.13
A fix for the remove path of the Rockchip driver, the code was just
 clearly and obviously wrong.
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Merge tag 'spi-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fix from Mark Brown:
 "A fix for the remove path of the Rockchip driver, the code was just
  clearly and obviously wrong"

* tag 'spi-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: rockchip-sfc: Fix error in remove progress
2024-12-20 11:06:25 -08:00
Linus Torvalds
b648264cd4 regulator: Fix for v6.13
The recently added regulator-uv-survival-time-ms property was renamed
 during the review of the series that added it, but unfortunately only in
 the DT binding and not in the code that parses the binding.  This change
 brings the code in line with the binding, if someone started using the
 original name we can add compat support for it but there's nothing
 upstream yet and it's a very niche feature so hopefully not.
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Merge tag 'regulator-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "The recently added regulator-uv-survival-time-ms property was renamed
  during the review of the series that added it, but unfortunately only
  in the DT binding and not in the code that parses the binding.

  This brings the code in line with the binding, if someone started
  using the original name we can add compat support for it but there's
  nothing upstream yet and it's a very niche feature so hopefully not"

* tag 'regulator-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: rename regulator-uv-survival-time-ms according to DT binding
2024-12-20 11:04:02 -08:00
Linus Torvalds
af215c980c drm fixes for 6.13-rc4
core:
 - fix FB dependency
 - avoid div by 0 more in vrefresh
 - maintainers update
 
 display:
 - fix DP tunnel error path
 
 dma-buf:
 - fix !DEBUG_FS
 
 sched:
 - docs warning fix
 
 panel:
 - collection of misc panel fixes
 
 i915
 - Reset engine utilization buffer before registration
 - Ensure busyness counter increases motonically
 - Accumulate active runtime on gt reset
 
 amdgpu:
 - Disable BOCO when CONFIG_HOTPLUG_PCI_PCIE is not enabled
 - scheduler job fixes
 - IP version check fixes
 - devcoredump fix
 - GPUVM update fix
 - NBIO 2.5 fix
 
 udmabuf:
 - fix memory leak on last export
 - sealing fixes
 
 ivpu:
 - fix NULL pointer
 - fix memory leak
 - fix WARN
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Merge tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Probably the last pull before Christmas holidays, I'll still be around
  for most of the time anyways, nothing too major in here, bunch of
  amdgpu and i915 along with a smattering of fixes across the board.

  core:
   - fix FB dependency
   - avoid div by 0 more in vrefresh
   - maintainers update

  display:
   - fix DP tunnel error path

  dma-buf:
   - fix !DEBUG_FS

  sched:
   - docs warning fix

  panel:
   - collection of misc panel fixes

  i915:
   - Reset engine utilization buffer before registration
   - Ensure busyness counter increases motonically
   - Accumulate active runtime on gt reset

  amdgpu:
   - Disable BOCO when CONFIG_HOTPLUG_PCI_PCIE is not enabled
   - scheduler job fixes
   - IP version check fixes
   - devcoredump fix
   - GPUVM update fix
   - NBIO 2.5 fix

  udmabuf:
   - fix memory leak on last export
   - sealing fixes

  ivpu:
   - fix NULL pointer
   - fix memory leak
   - fix WARN"

* tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel: (33 commits)
  drm/sched: Fix drm_sched_fini() docu generation
  accel/ivpu: Fix WARN in ivpu_ipc_send_receive_internal()
  accel/ivpu: Fix memory leak in ivpu_mmu_reserved_context_init()
  accel/ivpu: Fix general protection fault in ivpu_bo_list()
  drm/amdgpu/nbio7.0: fix IP version check
  drm/amd: Update strapping for NBIO 2.5.0
  drm/amdgpu: Handle NULL bo->tbo.resource (again) in amdgpu_vm_bo_update
  drm/amdgpu: fix amdgpu_coredump
  drm/amdgpu/smu14.0.2: fix IP version check
  drm/amdgpu/gfx12: fix IP version check
  drm/amdgpu/mmhub4.1: fix IP version check
  drm/amdgpu/nbio7.11: fix IP version check
  drm/amdgpu/nbio7.7: fix IP version check
  drm/amdgpu: don't access invalid sched
  drm/amd: Require CONFIG_HOTPLUG_PCI_PCIE for BOCO
  drm: rework FB_CORE dependency
  drm/fbdev: Select FB_CORE dependency for fbdev on DMA and TTM
  fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE
  i915/guc: Accumulate active runtime on gt reset
  i915/guc: Ensure busyness counter increases motonically
  ...
2024-12-20 10:17:53 -08:00
Linus Torvalds
5b83bcdea5 ring-buffer fixes for v6.13:
- Fix possible overflow of mmapped ring buffer with bad offset
 
   If the mmap() to the ring buffer passes in a start address that
   is passed the end of the mmapped file, it is not caught and
   a slab-out-of-bounds is triggered.
 
   Add a check to make sure the start address is within the bounds
 
 - Do not use TP_printk() to boot mapped ring buffers
 
   As a boot mapped ring buffer's data may have pointers that map to
   the previous boot's memory map, it is unsafe to allow the TP_printk()
   to be used to read the boot mapped buffer's events. If a TP_printk()
   points to a static string from within the kernel it will not match
   the current kernel mapping if KASLR is active, and it can fault.
 
   Have it simply print out the raw fields.
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Merge tag 'trace-ringbuffer-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull ring-buffer fixes from Steven Rostedt:

 - Fix possible overflow of mmapped ring buffer with bad offset

   If the mmap() to the ring buffer passes in a start address that is
   passed the end of the mmapped file, it is not caught and a
   slab-out-of-bounds is triggered.

   Add a check to make sure the start address is within the bounds

 - Do not use TP_printk() to boot mapped ring buffers

   As a boot mapped ring buffer's data may have pointers that map to the
   previous boot's memory map, it is unsafe to allow the TP_printk() to
   be used to read the boot mapped buffer's events. If a TP_printk()
   points to a static string from within the kernel it will not match
   the current kernel mapping if KASLR is active, and it can fault.

   Have it simply print out the raw fields.

* tag 'trace-ringbuffer-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  trace/ring-buffer: Do not use TP_printk() formatting for boot mapped buffers
  ring-buffer: Fix overflow in __rb_map_vma
2024-12-20 10:13:26 -08:00
Arnd Bergmann
a31ffd6ed5 This pull request contains Broadcom ARM64-based SoCs Device Tree fixes
for 6.13, please pull the following:
 
 - Willow corrects the L2 cache line size on the Raspberry Pi 5 (2712) to
   the correct value of 64 bytes
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Merge tag 'arm-soc/for-6.13/devicetree-arm64-fixes' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains Broadcom ARM64-based SoCs Device Tree fixes
for 6.13, please pull the following:

- Willow corrects the L2 cache line size on the Raspberry Pi 5 (2712) to
  the correct value of 64 bytes

* tag 'arm-soc/for-6.13/devicetree-arm64-fixes' of https://github.com/Broadcom/stblinux:
  arm64: dts: broadcom: Fix L2 linesize for Raspberry Pi 5

Link: https://lore.kernel.org/r/20241217190547.868744-1-florian.fainelli@broadcom.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-12-20 18:02:27 +01:00