Commit Graph

1281267 Commits

Author SHA1 Message Date
Miguel Ojeda
dee1396a48 rust: init: simplify from map_err to inspect_err
A new complexity lint, `manual_inspect` [1], has been introduced in
the upcoming Rust 1.81 (currently in nightly), which checks for uses of
`map*` which return the original item:

    error:
    --> rust/kernel/init.rs:846:23
        |
    846 |         (self.1)(val).map_err(|e| {
        |                       ^^^^^^^
        |
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_inspect
        = note: `-D clippy::manual-inspect` implied by `-D warnings`
        = help: to override `-D warnings` add `#[allow(clippy::manual_inspect)]`
    help: try
        |
    846 ~         (self.1)(val).inspect_err(|e| {
    847 |             // SAFETY: `slot` was initialized above.
    848 ~             unsafe { core::ptr::drop_in_place(slot) };
        |

Thus clean them up.

Link: https://rust-lang.github.io/rust-clippy/master/index.html#/manual_inspect [1]
Tested-by: Benno Lossin <benno.lossin@proton.me>
Tested-by: Andreas Hindborg <a.hindborg@samsung.com>
Link: https://lore.kernel.org/r/20240709160615.998336-3-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-10 10:28:51 +02:00
Miguel Ojeda
e516211f61 rust: macros: indent list item in paste!'s docs
A new style lint, `doc_lazy_continuation` [1], has been introduced in the
upcoming Rust 1.80 (currently in beta), which detects missing indentation
in code documentation.

We have one such case:

    error: doc list item missing indentation
    --> rust/macros/lib.rs:315:5
        |
    315 | /// default the span of the `[< >]` group is used.
        |     ^
        |
        = help: if this is supposed to be its own paragraph, add a blank line
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#doc_lazy_continuation
        = note: `-D clippy::doc-lazy-continuation` implied by `-D clippy::style`
        = help: to override `-D clippy::style` add `#[allow(clippy::doc_lazy_continuation)]`
    help: indent this line
        |
    315 | ///   default the span of the `[< >]` group is used.
        |     ++

While the rendering of the docs by `rustdoc` is not affected, we apply
this kind of indentation elsewhere since it looks better.

Thus clean it up.

Link: https://rust-lang.github.io/rust-clippy/master/index.html#/doc_lazy_continuation [1]
Reviewed-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Reviewed-by: Finn Behrens <me@kloenk.dev>
Tested-by: Benno Lossin <benno.lossin@proton.me>
Tested-by: Andreas Hindborg <a.hindborg@samsung.com>
Link: https://lore.kernel.org/r/20240709160615.998336-2-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-10 10:28:51 +02:00
Alice Ryhl
fc6e66f469 rust: add abstraction for struct page
Adds a new struct called `Page` that wraps a pointer to `struct page`.
This struct is assumed to hold ownership over the page, so that Rust
code can allocate and manage pages directly.

The page type has various methods for reading and writing into the page.
These methods will temporarily map the page to allow the operation. All
of these methods use a helper that takes an offset and length, performs
bounds checks, and returns a pointer to the given offset in the page.

This patch only adds support for pages of order zero, as that is all
Rust Binder needs. However, it is written to make it easy to add support
for higher-order pages in the future. To do that, you would add a const
generic parameter to `Page` that specifies the order. Most of the
methods do not need to be adjusted, as the logic for dealing with
mapping multiple pages at once can be isolated to just the
`with_pointer_into_page` method.

Rust Binder needs to manage pages directly as that is how transactions
are delivered: Each process has an mmap'd region for incoming
transactions. When an incoming transaction arrives, the Binder driver
will choose a region in the mmap, allocate and map the relevant pages
manually, and copy the incoming transaction directly into the page. This
architecture allows the driver to copy transactions directly from the
address space of one process to another, without an intermediate copy
to a kernel buffer.

This code is based on Wedson's page abstractions from the old rust
branch, but it has been modified by Alice by removing the incomplete
support for higher-order pages, by introducing the `with_*` helpers
to consolidate the bounds checking logic into a single place, and
various other changes.

Co-developed-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Reviewed-by: Andreas Hindborg <a.hindborg@samsung.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240528-alice-mm-v7-4-78222c31b8f4@google.com
[ Fixed typos and added a few intra-doc links. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 23:44:01 +02:00
Alice Ryhl
b33bf37adb rust: uaccess: add typed accessors for userspace pointers
Add safe methods for reading and writing Rust values to and from
userspace pointers.

The C methods for copying to/from userspace use a function called
`check_object_size` to verify that the kernel pointer is not dangling.
However, this check is skipped when the length is a compile-time
constant, with the assumption that such cases trivially have a correct
kernel pointer.

In this patch, we apply the same optimization to the typed accessors.
For both methods, the size of the operation is known at compile time to
be size_of of the type being read or written. Since the C side doesn't
provide a variant that skips only this check, we create custom helpers
for this purpose.

The majority of reads and writes to userspace pointers in the Rust
Binder driver uses these accessor methods. Benchmarking has found that
skipping the `check_object_size` check makes a big difference for the
cases being skipped here. (And that the check doesn't make a difference
for the cases that use the raw read/write methods.)

This code is based on something that was originally written by Wedson on
the old rust branch. It was modified by Alice to skip the
`check_object_size` check, and to update various comments, including the
notes about kernel pointers in `WritableToBytes`.

Co-developed-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240528-alice-mm-v7-3-78222c31b8f4@google.com
[ Wrapped docs to 100 and added a few intra-doc links. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 23:44:01 +02:00
Arnd Bergmann
1f9a8286bc uaccess: always export _copy_[from|to]_user with CONFIG_RUST
Rust code needs to be able to access _copy_from_user and _copy_to_user
so that it can skip the check_copy_size check in cases where the length
is known at compile-time, mirroring the logic for when C code will skip
check_copy_size. To do this, we ensure that exported versions of these
methods are available when CONFIG_RUST is enabled.

Alice has verified that this patch passes the CONFIG_TEST_USER_COPY test
on x86 using the Android cuttlefish emulator.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/r/20240528-alice-mm-v7-2-78222c31b8f4@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 23:44:01 +02:00
Wedson Almeida Filho
1b580e7b9b rust: uaccess: add userspace pointers
A pointer to an area in userspace memory, which can be either read-only
or read-write.

All methods on this struct are safe: attempting to read or write on bad
addresses (either out of the bound of the slice or unmapped addresses)
will return `EFAULT`. Concurrent access, *including data races to/from
userspace memory*, is permitted, because fundamentally another userspace
thread/process could always be modifying memory at the same time (in the
same way that userspace Rust's `std::io` permits data races with the
contents of files on disk). In the presence of a race, the exact byte
values read/written are unspecified but the operation is well-defined.
Kernelspace code should validate its copy of data after completing a
read, and not expect that multiple reads of the same address will return
the same value.

These APIs are designed to make it difficult to accidentally write
TOCTOU bugs. Every time you read from a memory location, the pointer is
advanced by the length so that you cannot use that reader to read the
same memory location twice. Preventing double-fetches avoids TOCTOU
bugs. This is accomplished by taking `self` by value to prevent
obtaining multiple readers on a given `UserSlice`, and the readers only
permitting forward reads. If double-fetching a memory location is
necessary for some reason, then that is done by creating multiple
readers to the same memory location.

Constructing a `UserSlice` performs no checks on the provided address
and length, it can safely be constructed inside a kernel thread with no
current userspace process. Reads and writes wrap the kernel APIs
`copy_from_user` and `copy_to_user`, which check the memory map of the
current process and enforce that the address range is within the user
range (no additional calls to `access_ok` are needed).

This code is based on something that was originally written by Wedson on
the old rust branch. It was modified by Alice by removing the
`IoBufferReader` and `IoBufferWriter` traits, and various other changes.

Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Co-developed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240528-alice-mm-v7-1-78222c31b8f4@google.com
[ Wrapped docs to 100 and added a few intra-doc links. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 23:44:01 +02:00
John Hubbard
5045b46084 kbuild: rust-analyzer: improve comment documentation
Replace the cryptic phrase ("IDE support targets") that initially
appears to be about how to support old hard drives, with a few sentences
that explain what "make rust-analyzer" provides.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Finn Behrens <me@kloenk.dev>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240628004356.1384486-3-jhubbard@nvidia.com
[ Reworded title. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 23:44:01 +02:00
John Hubbard
6dc9d9ca9a kbuild: rust-analyzer: better error handling
1) Provide a better error message for the "Rust not available" case.
Without this patch, one gets various misleading messages, such as:

    "No rule to make target 'rust-analyzer'"

Instead, run scripts/rust_is_available.sh directly, as a prerequisite,
and let that script report the cause of any problems, as well as
providing a link to the documentation. Thanks to Miguel Ojeda for the
idea of just letting rust_is_available.sh report its results directly.

The new output in the failure case looks like this:

$ make rust-analyzer
***
*** Rust compiler 'rustc' could not be found.
***
***
*** Please see Documentation/rust/quick-start.rst for details
*** on how to set up the Rust support.
***
make[1]: *** [/kernel_work/linux-github/Makefile:1975: rust-analyzer] Error 1
make: *** [Makefile:240: __sub-make] Error 2

Reviewed-by: Finn Behrens <me@kloenk.dev>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/r/20240628004356.1384486-2-jhubbard@nvidia.com
[ Reworded title. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 23:44:01 +02:00
Dirk Behme
b63c455d38 docs: rust: no_std is used
Using the #![no_std] attribute in the Rust kernel support is different
to the default Rust usage. Mention this in the Documentation.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Link: https://lore.kernel.org/r/20240610122332.3858571-1-dirk.behme@de.bosch.com
[ Avoided breaking links in two lines. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 23:44:00 +02:00
Alice Ryhl
ab44079e28 rust: alloc: add __GFP_HIGHMEM flag
Make it possible to allocate memory that doesn't need to mapped into the
kernel's address space. This flag is useful together with
Page::alloc_page [1].

Rust Binder needs this for the memory that holds incoming transactions
for each process. Each process will have a few megabytes of memory
allocated with this flag, which is mapped into the process using
vm_insert_page. When the kernel copies data for an incoming transaction
into a process's memory region, it will use kmap_local_page to
temporarily map pages that are being modified. There is no need for them
to take up address space in the kernel when the kernel is not writing an
incoming transaction into the page.

Link: https://lore.kernel.org/all/20240528-alice-mm-v7-4-78222c31b8f4@google.com/ [1]
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240607-highmem-v1-1-d18c5ca4072f@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:39:39 +02:00
Alice Ryhl
d3ee24cce4 rust: alloc: fix typo in docs for GFP_NOWAIT
Fix a typo in alloc.rs by replacing Ror with For.

Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Link: https://lore.kernel.org/r/20240529083452.779865-1-aliceryhl@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:39:39 +02:00
Miguel Ojeda
9ffc80c819 kbuild: rust: remove now-unneeded rusttest custom sysroot handling
Since we dropped our custom `alloc` in commit 9d0441bab7 ("rust: alloc:
remove our fork of the `alloc` crate"), there is no need anymore to keep
the custom sysroot hack.

Thus delete it, which makes the target way simpler and faster too.

This also means we are not using Cargo for anything at the moment,
and that no download is required anymore, so update the main `Makefile`
and the documentation accordingly.

Link: https://lore.kernel.org/r/20240528163502.411600-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:39:39 +02:00
Roland Xu
fe7d9d8043 rust: kernel: make impl_has_work compatible with more generics
Make the impl_has_work macro compatible with more complex generics such
as lifetimes and const generic arguments.

Signed-off-by: Roland Xu <mu001999@outlook.com>
Link: https://lore.kernel.org/r/ME0P282MB4890A180B99490CC65EF64FDCCEB2@ME0P282MB4890.AUSP282.PROD.OUTLOOK.COM
Suggested-by: Benno Lossin <benno.lossin@proton.me>
Link: https://github.com/Rust-for-Linux/linux/issues/1077
[ Wrapped message to 72 columns. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:39:39 +02:00
Nathan Chancellor
526c539452 docs: rust: introduce the new kernel.org LLVM+Rust toolchains
These combined LLVM+Rust toolchains are now available, thanks to Nathan
Chancellor (ClangBuiltLinux).

Thus introduce them in the Rust Quick Start guide.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20240517170615.377786-1-ojeda@kernel.org
Co-developed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:39:29 +02:00
FUJITA Tomonori
549d3c2ffb rust: add 'firmware' field support to module! macro
This adds 'firmware' field support to module! macro, corresponds to
MODULE_FIRMWARE macro. You can specify the file names of binary
firmware that the kernel module requires. The information is embedded
in the modinfo section of the kernel module. For example, a tool to
build an initramfs uses this information to put the firmware files
into the initramfs image.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20240501123548.51769-1-fujita.tomonori@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:20:09 +02:00
Aswin Unnikrishnan
63249a070e rust: fix datatype in docs for module macro arguments
Remove the mention of byte array as datatype for `module` macro arguments
since the arguments are defined as string, and `alias` is a string array.

Signed-off-by: Aswin Unnikrishnan <aswinunni01@gmail.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20240512112324.8514-2-aswinunni01@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:20:08 +02:00
Aswin Unnikrishnan
67f9c312b0 rust: add example for alias argument in module macro documentation
Add example for `alias` argument supported by `module` macro.
`alias` accepts an array of alternate names for the module as string.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Aswin Unnikrishnan <aswinunni01@gmail.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20240512112324.8514-1-aswinunni01@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-07-08 22:20:08 +02:00
Linus Torvalds
256abd8e55 Linux 6.10-rc7 2024-07-07 14:23:46 -07:00
Linus Torvalds
5a4bd506dd A set of clk fixes for the Qualcomm, Mediatek, and Allwinner drivers:
- Fix the Qualcomm Stromer Plus PLL set_rate() clk_op to explicitly set
    the alpha enable bit and not set bits that don't exist
  - Mark Qualcomm IPQ9574 crypto clks as voted to avoid stuck clk
    warnings
  - Fix the parent of some PLLs on Qualcomm sm6530 so their rate is
    correct
  - Fix the min/max rate clamping logic in the Allwinner driver that got
    broken in v6.9
  - Limit runtime PM enabling in the Mediatek driver to only
    mt8183-mfgcfg so that system wide resume doesn't break on other
    Mediatek SoCs
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A set of clk fixes for the Qualcomm, Mediatek, and Allwinner drivers:

   - Fix the Qualcomm Stromer Plus PLL set_rate() clk_op to explicitly
     set the alpha enable bit and not set bits that don't exist

   - Mark Qualcomm IPQ9574 crypto clks as voted to avoid stuck clk
     warnings

   - Fix the parent of some PLLs on Qualcomm sm6530 so their rate is
     correct

   - Fix the min/max rate clamping logic in the Allwinner driver that
     got broken in v6.9

   - Limit runtime PM enabling in the Mediatek driver to only
     mt8183-mfgcfg so that system wide resume doesn't break on other
     Mediatek SoCs"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: mediatek: mt8183: Only enable runtime PM on mt8183-mfgcfg
  clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common
  clk: qcom: gcc-ipq9574: Add BRANCH_HALT_VOTED flag
  clk: qcom: apss-ipq-pll: remove 'config_ctl_hi_val' from Stromer pll configs
  clk: qcom: clk-alpha-pll: set ALPHA_EN bit for Stromer Plus PLLs
  clk: qcom: gcc-sm6350: Fix gpll6* & gpll7 parents
2024-07-07 10:59:38 -07:00
Linus Torvalds
c6653f49e4 powerpc fixes for 6.10 #4
- Fix unnecessary copy to 0 when kernel is booted at address 0.
 
  - Fix usercopy crash when dumping dtl via debugfs.
 
  - Avoid possible crash when PCI hotplug races with error handling.
 
  - Fix kexec crash caused by scv being disabled before other CPUs call-in.
 
  - Fix powerpc selftests build with USERCFLAGS set.
 
 Thanks to: Anjali K, Ganesh Goudar, Gautam Menghani, Jinglin Wen, Nicholas
 Piggin, Sourabh Jain, Srikar Dronamraju, Vishal Chourasia.
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Merge tag 'powerpc-6.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix unnecessary copy to 0 when kernel is booted at address 0

 - Fix usercopy crash when dumping dtl via debugfs

 - Avoid possible crash when PCI hotplug races with error handling

 - Fix kexec crash caused by scv being disabled before other CPUs
   call-in

 - Fix powerpc selftests build with USERCFLAGS set

Thanks to Anjali K, Ganesh Goudar, Gautam Menghani, Jinglin Wen,
Nicholas Piggin, Sourabh Jain, Srikar Dronamraju, and Vishal Chourasia.

* tag 'powerpc-6.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Fix build with USERCFLAGS set
  powerpc/pseries: Fix scv instruction crash with kexec
  powerpc/eeh: avoid possible crash when edev->pdev changes
  powerpc/pseries: Whitelist dtl slub object for copying to userspace
  powerpc/64s: Fix unnecessary copy to 0 when kernel is booted at address 0
2024-07-06 18:31:24 -07:00
Linus Torvalds
256fdd4b71 fix for smb3 readahead performance regression
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Merge tag '6.10-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fix from Steve French:
 "Fix for smb3 readahead performance regression"

* tag '6.10-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix read-performance regression by dropping readahead expansion
2024-07-06 16:16:58 -07:00
Linus Torvalds
22f902dfc5 Passing through an I2C driver fix
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Merge tag 'i2c-for-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fix from Wolfram Sang:
 "An i2c driver fix"

* tag 'i2c-for-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr
2024-07-06 09:51:00 -07:00
Michael Ellerman
8b7f59de92 selftests/powerpc: Fix build with USERCFLAGS set
Currently building the powerpc selftests with USERCFLAGS set to anything
causes the build to break:

  $ make -C tools/testing/selftests/powerpc V=1 USERCFLAGS=-Wno-error
  ...
  gcc -Wno-error    cache_shape.c ...
  cache_shape.c:18:10: fatal error: utils.h: No such file or directory
     18 | #include "utils.h"
        |          ^~~~~~~~~
  compilation terminated.

This happens because the USERCFLAGS are added to CFLAGS in lib.mk, which
causes the check of CFLAGS in powerpc/flags.mk to skip setting CFLAGS at
all, resulting in none of the usual CFLAGS being passed. That can
be seen in the output above, the only flag passed to the compiler is
-Wno-error.

Fix it by dropping the conditional setting of CFLAGS in flags.mk.
Instead always set CFLAGS, but also append USERCFLAGS if they are set.

Note that appending to CFLAGS (with +=) wouldn't work, because flags.mk
is included by multiple Makefiles (to support partial builds), causing
CFLAGS to be appended to multiple times. Additionally that would place
the USERCFLAGS prior to the standard CFLAGS, meaning the USERCFLAGS
couldn't override the standard flags. Being able to override the
standard flags is desirable, for example for adding -Wno-error.

With the fix in place, the CFLAGS are set correctly, including the
USERCFLAGS:

  $ make -C tools/testing/selftests/powerpc V=1 USERCFLAGS=-Wno-error
  ...
  gcc -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"v6.10-rc2-7-gdea17e7e56c3"'
  -I/home/michael/linux/tools/testing/selftests/powerpc/include -Wno-error
  cache_shape.c ...

Fixes: 5553a79387 ("selftests/powerpc: Add flags.mk to support pmu buildable")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240706120833.909853-1-mpe@ellerman.id.au
2024-07-06 22:10:14 +10:00
Linus Torvalds
1dd28064d4 integrity-v6.10-fix
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Merge tag 'integrity-v6.10-fix' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull integrity fix from Mimi Zohar:
 "A single bug fix to properly remove all of the securityfs IMA
  measurement lists"

* tag 'integrity-v6.10-fix' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  ima: fix wrong zero-assignment during securityfs dentry remove
2024-07-05 16:21:54 -07:00
Linus Torvalds
d270dd21be pci-v6.10-fixes-2
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Merge tag 'pci-v6.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci update from Bjorn Helgaas:

 - Update MAINTAINERS and CREDITS to credit Gustavo Pimentel with the
   Synopsys DesignWare eDMA driver and reflect that he is no longer at
   Synopsys and isn't in a position to maintain the DesignWare xData
   traffic generator (Bjorn Helgaas)

* tag 'pci-v6.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  CREDITS: Add Synopsys DesignWare eDMA driver for Gustavo Pimentel
  MAINTAINERS: Orphan Synopsys DesignWare xData traffic generator
2024-07-05 12:33:00 -07:00
Linus Torvalds
b673f2bda0 RISC-V Fixes for 6.10-rc7
* A fix for the CMODX example in therecently added icache flushing
   prctl().
 * A fix to the perf driver to avoid corrupting event data on counter
   overflows when external overflow handlers are in use.
 * A fix to clear all hardware performance monitor events on boot, to
   avoid dangling events firmware or previously booted kernels from
   triggering spuriously.
 * A fix to the perf event probing logic to avoid erroneously reporting
   the presence of unimplemented counters.  This also prevents some
   implemented counters from being reported.
 * A build fix for the vector sigreturn selftest on clang.
 * A fix to ftrace, which now requires the previously optional index
   argument to ftrace_graph_ret_addr().
 * A fix to avoid deadlocking if kexec crash handling triggers in an
   interrupt context.
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Merge tag 'riscv-for-linus-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix for the CMODX example in the recently added icache flushing
   prctl()

 - A fix to the perf driver to avoid corrupting event data on counter
   overflows when external overflow handlers are in use

 - A fix to clear all hardware performance monitor events on boot, to
   avoid dangling events firmware or previously booted kernels from
   triggering spuriously

 - A fix to the perf event probing logic to avoid erroneously reporting
   the presence of unimplemented counters. This also prevents some
   implemented counters from being reported

 - A build fix for the vector sigreturn selftest on clang

 - A fix to ftrace, which now requires the previously optional index
   argument to ftrace_graph_ret_addr()

 - A fix to avoid deadlocking if kexec crash handling triggers in an
   interrupt context

* tag 'riscv-for-linus-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: kexec: Avoid deadlock in kexec crash path
  riscv: stacktrace: fix usage of ftrace_graph_ret_addr()
  riscv: selftests: Fix vsetivli args for clang
  perf: RISC-V: Check standard event availability
  drivers/perf: riscv: Reset the counter to hpmevent mapping while starting cpus
  drivers/perf: riscv: Do not update the event data if uptodate
  documentation: Fix riscv cmodx example
2024-07-05 12:22:51 -07:00
Linus Torvalds
dd9d7390b2 drm-fixes for v6.10-rc7
drivers:
 - amd: mostly amdgpu display fixes + radeon vm NULL deref fix
 - xe: migration error handling + typoed register name in gt setup
 - i915: usb-c fix to shut up warnings on MTL+
 - panthor: fix sync-only jobs + ioctl validation fix to not EINVAL
   wrongly
 - panel quirks
 - nouveau: NULL deref in get_modes
 
 drm core:
 - fbdev big endian fix for the dma memory backed variant
 
 drivers/firmware:
 - fix sysfb refcounting
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Merge tag 'drm-fixes-2024-07-05' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Daniel Vetter:
 "Just small fixes all over here, all quiet as it should.

  drivers:

   - amd: mostly amdgpu display fixes + radeon vm NULL deref fix

   - xe: migration error handling + typoed register name in gt setup

   - i915: usb-c fix to shut up warnings on MTL+

   - panthor: fix sync-only jobs + ioctl validation fix to not EINVAL
     wrongly

   - panel quirks

   - nouveau: NULL deref in get_modes

  drm core:

   - fbdev big endian fix for the dma memory backed variant

  drivers/firmware:

   - fix sysfb refcounting"

* tag 'drm-fixes-2024-07-05' of https://gitlab.freedesktop.org/drm/kernel:
  drm/xe/mcr: Avoid clobbering DSS steering
  drm/xe: fix error handling in xe_migrate_update_pgtables
  drm/ttm: Always take the bo delayed cleanup path for imported bos
  drm/fbdev-generic: Fix framebuffer on big endian devices
  drm/panthor: Fix sync-only jobs
  drm/panthor: Don't check the array stride on empty uobj arrays
  drm/amdgpu/atomfirmware: silence UBSAN warning
  drm/radeon: check bo_va->bo is non-NULL before using it
  drm/amd/display: Fix array-index-out-of-bounds in dml2/FCLKChangeSupport
  drm/amd/display: Update efficiency bandwidth for dcn351
  drm/amd/display: Fix refresh rate range for some panel
  drm/amd/display: Account for cursor prefetch BW in DML1 mode support
  drm/amd/display: Add refresh rate range check
  drm/amd/display: Reset freesync config before update new state
  drm: panel-orientation-quirks: Add labels for both Valve Steam Deck revisions
  drm: panel-orientation-quirks: Add quirk for Valve Galileo
  drm/i915/display: For MTL+ platforms skip mg dp programming
  drm/nouveau: fix null pointer dereference in nouveau_connector_get_modes
  firmware: sysfb: Fix reference count of sysfb parent device
2024-07-05 11:53:40 -07:00
Linus Torvalds
968460731f gpio fixes for v6.10-rc7
- add two OF lookup quirks for TSC2005 and MIPS Lantiq
 - don't try to figure out bgpio_bits from the "ngpios" property in gpio-mmio
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Merge tag 'gpio-fixes-for-v6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:
 "Two OF lookup quirks and one fix for an issue in the generic gpio-mmio
  driver:

   - add two OF lookup quirks for TSC2005 and MIPS Lantiq

   - don't try to figure out bgpio_bits from the 'ngpios' property in
     gpio-mmio"

* tag 'gpio-fixes-for-v6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: of: add polarity quirk for TSC2005
  gpio: mmio: do not calculate bgpio_bits via "ngpios"
  gpiolib: of: fix lookup quirk for MIPS Lantiq
2024-07-05 11:39:30 -07:00
Linus Torvalds
5cc467117e Hi
Contains the fixes for !chip->auth condition, preventing the breakage
 of:
 
 * tpm_ftpm_tee.c
 * tpm_i2c_nuvoton.c
 * tpm_ibmvtpm.c
 * tpm_tis_i2c_cr50.c
 * tpm_vtpm_proxy.c
 
 All drivers will continue to work as they did in 6.9, except a single
 warning (dev_warn() not WARN()) is printed to klog only to inform that
 authenticated sessions are not enabled.
 
 BR, Jarkko
 
 Link: https://lore.kernel.org/linux-integrity/20240704185313.224318-1-jarkko@kernel.org/
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Merge tag 'tpmdd-next-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull TPM fixes from Jarkko Sakkinen:
 "This contains the fixes for !chip->auth condition, preventing the
  breakage of:
   - tpm_ftpm_tee.c
   - tpm_i2c_nuvoton.c
   - tpm_ibmvtpm.c
   - tpm_tis_i2c_cr50.c
   - tpm_vtpm_proxy.c

  All drivers will continue to work as they did in 6.9, except a single
  warning (dev_warn() not WARN()) is printed to klog only to inform that
  authenticated sessions are not enabled"

* tag 'tpmdd-next-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: Address !chip->auth in tpm_buf_append_hmac_session*()
  tpm: Address !chip->auth in tpm_buf_append_name()
  tpm: Address !chip->auth in tpm2_*_auth_session()
2024-07-05 11:30:57 -07:00
Linus Torvalds
75aa87ca48 s390: fix support for z16 systems.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fix from Paolo Bonzini:

 - s390: fix support for z16 systems

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: s390: fix LPSWEY handling
2024-07-05 11:23:30 -07:00
Wolfram Sang
b46803320c This tag includes a nice fix in the PNX driver that has been
pending for a long time. Piotr has replaced a potential lock in
 the interrupt context with a more efficient and straightforward
 handling of the timeout signaling.
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Merge tag 'i2c-host-fixes-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current

This tag includes a nice fix in the PNX driver that has been
pending for a long time. Piotr has replaced a potential lock in
the interrupt context with a more efficient and straightforward
handling of the timeout signaling.
2024-07-05 16:08:55 +02:00
Daniel Vetter
3c6f5afd91 amd-drm-fixes-6.10-2024-07-03:
amdgpu:
 - Freesync fixes
 - DML1 bandwidth fix
 - DCN 3.5 fixes
 - DML2 fix
 - Silence an UBSAN warning
 
 radeon:
 - GPUVM fix
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Merge tag 'amd-drm-fixes-6.10-2024-07-03' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.10-2024-07-03:

amdgpu:
- Freesync fixes
- DML1 bandwidth fix
- DCN 3.5 fixes
- DML2 fix
- Silence an UBSAN warning

radeon:
- GPUVM fix

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240703184723.1981997-1-alexander.deucher@amd.com
2024-07-05 12:54:14 +02:00
Dmitry Torokhov
f8d76c2c31 gpiolib: of: add polarity quirk for TSC2005
DTS for Nokia N900 incorrectly specifies "active high" polarity for
the reset line, while the chip documentation actually specifies it as
"active low".  In the past the driver fudged gpiod API and inverted
the logic internally, but it was changed in d0d89493bf.

Fixes: d0d89493bf ("Input: tsc2004/5 - switch to using generic device properties")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/ZoWXwYtwgJIxi-hD@google.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-07-05 11:00:45 +02:00
Paolo Bonzini
8ad209fc64 KVM: s390: Fix z16 support
The z16 support might fail with the lpswey instruction. Provide a
 handler.
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Merge tag 'kvm-s390-master-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: Fix z16 support

The z16 support might fail with the lpswey instruction. Provide a
handler.
2024-07-05 04:45:53 -04:00
Jarkko Sakkinen
7ca110f267 tpm: Address !chip->auth in tpm_buf_append_hmac_session*()
Unless tpm_chip_bootstrap() was called by the driver, !chip->auth can
cause a null derefence in tpm_buf_hmac_session*().  Thus, address
!chip->auth in tpm_buf_hmac_session*() and remove the fallback
implementation for !TCG_TPM2_HMAC.

Cc: stable@vger.kernel.org # v6.9+
Reported-by: Stefan Berger <stefanb@linux.ibm.com>
Closes: https://lore.kernel.org/linux-integrity/20240617193408.1234365-1-stefanb@linux.ibm.com/
Fixes: 1085b8276b ("tpm: Add the rest of the session HMAC API")
Tested-by: Michael Ellerman <mpe@ellerman.id.au> # ppc
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-07-05 02:12:27 +03:00
Jarkko Sakkinen
a61809a332 tpm: Address !chip->auth in tpm_buf_append_name()
Unless tpm_chip_bootstrap() was called by the driver, !chip->auth can
cause a null derefence in tpm_buf_append_name().  Thus, address
!chip->auth in tpm_buf_append_name() and remove the fallback
implementation for !TCG_TPM2_HMAC.

Cc: stable@vger.kernel.org # v6.10+
Reported-by: Stefan Berger <stefanb@linux.ibm.com>
Closes: https://lore.kernel.org/linux-integrity/20240617193408.1234365-1-stefanb@linux.ibm.com/
Fixes: d0a25bb961 ("tpm: Add HMAC session name/handle append")
Tested-by: Michael Ellerman <mpe@ellerman.id.au> # ppc
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-07-05 02:12:27 +03:00
Jarkko Sakkinen
25ee48a55f tpm: Address !chip->auth in tpm2_*_auth_session()
Unless tpm_chip_bootstrap() was called by the driver, !chip->auth can cause
a null derefence in tpm2_*_auth_session(). Thus, address !chip->auth in
tpm2_*_auth_session().

Cc: stable@vger.kernel.org # v6.9+
Reported-by: Stefan Berger <stefanb@linux.ibm.com>
Closes: https://lore.kernel.org/linux-integrity/20240617193408.1234365-1-stefanb@linux.ibm.com/
Fixes: 699e3efd6c ("tpm: Add HMAC session start and end functions")
Tested-by: Michael Ellerman <mpe@ellerman.id.au> # ppc
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2024-07-05 02:12:27 +03:00
Linus Torvalds
661e504db0 for-6.10-rc6-tag
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Merge tag 'for-6.10-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - fix folio refcounting when releasing them (encoded write, dummy
   extent buffer)

 - fix out of bounds read when checking qgroup inherit data

 - fix how configurable chunk size is handled in zoned mode

 - in the ref-verify tool, fix uninitialized return value when checking
   extent owner ref and simple quota are not enabled

* tag 'for-6.10-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix folio refcount in __alloc_dummy_extent_buffer()
  btrfs: fix folio refcount in btrfs_do_encoded_write()
  btrfs: fix uninitialized return value in the ref-verify tool
  btrfs: always do the basic checks for btrfs_qgroup_inherit structure
  btrfs: zoned: fix calc_available_free_space() for zoned mode
2024-07-04 10:27:37 -07:00
Linus Torvalds
033771c085 Including fixes from bluetooth, wireless and netfilter.
There's one fix for power management with Intel's e1000e here,
 Thorsten tells us there's another problem that started in v6.9.
 We're trying to wrap that up but I don't think it's blocking.
 
 Current release - new code bugs:
 
  - wifi: mac80211: disable softirqs for queued frame handling
 
  - af_unix: fix uninit-value in __unix_walk_scc(), with the new garbage
    collection algo
 
 Previous releases - regressions:
 
  - Bluetooth:
    - qca: fix BT enable failure for QCA6390 after warm reboot
    - add quirk to ignore reserved PHY bits in LE Extended Adv Report,
      abused by some Broadcom controllers found on Apple machines
 
  - wifi: wilc1000: fix ies_len type in connect path
 
 Previous releases - always broken:
 
  - tcp: fix DSACK undo in fast recovery to call tcp_try_to_open(),
    avoid premature timeouts
 
  - net: make sure skb_datagram_iter maps fragments page by page,
    in case we somehow get compound highmem mixed in
 
  - eth: bnx2x: fix multiple UBSAN array-index-out-of-bounds when
    more queues are used
 
 Misc:
 
  - MAINTAINERS: Remembering Larry Finger
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bluetooth, wireless and netfilter.

  There's one fix for power management with Intel's e1000e here,
  Thorsten tells us there's another problem that started in v6.9. We're
  trying to wrap that up but I don't think it's blocking.

  Current release - new code bugs:

   - wifi: mac80211: disable softirqs for queued frame handling

   - af_unix: fix uninit-value in __unix_walk_scc(), with the new
     garbage collection algo

  Previous releases - regressions:

   - Bluetooth:
      - qca: fix BT enable failure for QCA6390 after warm reboot
      - add quirk to ignore reserved PHY bits in LE Extended Adv Report,
        abused by some Broadcom controllers found on Apple machines

   - wifi: wilc1000: fix ies_len type in connect path

  Previous releases - always broken:

   - tcp: fix DSACK undo in fast recovery to call tcp_try_to_open(),
     avoid premature timeouts

   - net: make sure skb_datagram_iter maps fragments page by page, in
     case we somehow get compound highmem mixed in

   - eth: bnx2x: fix multiple UBSAN array-index-out-of-bounds when more
     queues are used

  Misc:

   - MAINTAINERS: Remembering Larry Finger"

* tag 'net-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits)
  bnxt_en: Fix the resource check condition for RSS contexts
  mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file
  inet_diag: Initialize pad field in struct inet_diag_req_v2
  tcp: Don't flag tcp_sk(sk)->rx_opt.saw_unknown for TCP AO.
  selftests: make order checking verbose in msg_zerocopy selftest
  selftests: fix OOM in msg_zerocopy selftest
  ice: use proper macro for testing bit
  ice: Reject pin requests with unsupported flags
  ice: Don't process extts if PTP is disabled
  ice: Fix improper extts handling
  selftest: af_unix: Add test case for backtrack after finalising SCC.
  af_unix: Fix uninit-value in __unix_walk_scc()
  bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set()
  net: rswitch: Avoid use-after-free in rswitch_poll()
  netfilter: nf_tables: unconditionally flush pending work before notifier
  wifi: iwlwifi: mvm: check vif for NULL/ERR_PTR before dereference
  wifi: iwlwifi: mvm: avoid link lookup in statistics
  wifi: iwlwifi: mvm: don't wake up rx_sync_waitq upon RFKILL
  wifi: iwlwifi: properly set WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK
  wifi: wilc1000: fix ies_len type in connect path
  ...
2024-07-04 10:11:12 -07:00
Linus Torvalds
d470e9f57d s390 fixes for 6.10-rc7
- Fix and add physical to virtual address translations in dasd and
   virtio_ccw drivers. For virtio_ccw this is just a minimal fix.
   More code cleanup will follow.
 
 - Small defconfig updates
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Merge tag 's390-6.10-8' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Heiko Carstens:

 - Fix and add physical to virtual address translations in dasd and
   virtio_ccw drivers. For virtio_ccw this is just a minimal fix.
   More code cleanup will follow.

 - Small defconfig updates

* tag 's390-6.10-8' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/dasd: Fix invalid dereferencing of indirect CCW data pointer
  s390/vfio_ccw: Fix target addresses of TIC CCWs
  s390: Update defconfigs
2024-07-04 09:46:15 -07:00
Linus Torvalds
2d19be0952 platform-drivers-x86 for v6.10-5
Highlights:
  -  Fix regression in toshiba_acpi introduced in 6.10-rc1
 
 The following is an automated git shortlog grouped by driver:
 
 toshiba_acpi:
  -  Fix quickstart quirk handling
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Merge tag 'platform-drivers-x86-v6.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fix from Hans de Goede:

 - Fix regression in toshiba_acpi introduced in 6.10-rc1

* tag 'platform-drivers-x86-v6.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: toshiba_acpi: Fix quickstart quirk handling
2024-07-04 09:36:42 -07:00
Linus Torvalds
4d85acef10 Fix Kselftests timeout and race condition
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Merge tag 'kselftest-fix-2024-07-04' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull Kselftest fix from Mickaël Salaün:
 "Fix Kselftests timeout.

  We can't use CLONE_VFORK, since that blocks the parent - and thus the
  timeout handling - until the child exits or execve's.

  Go back to using plain fork()"

* tag 'kselftest-fix-2024-07-04' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  selftests/harness: Fix tests timeout and race condition
2024-07-04 09:29:42 -07:00
Linus Torvalds
8faccfefaf 6 hotfies, all cc:stable. Some fixes for longstanding nilfs2 issues and
three unrelated MM fixes.
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Merge tag 'mm-hotfixes-stable-2024-07-03-22-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from, Andrew Morton:
 "6 hotfies, all cc:stable. Some fixes for longstanding nilfs2 issues
  and three unrelated MM fixes"

* tag 'mm-hotfixes-stable-2024-07-03-22-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  nilfs2: fix incorrect inode allocation from reserved inodes
  nilfs2: add missing check for inode numbers on directory entries
  nilfs2: fix inode number range checks
  mm: avoid overflows in dirty throttling logic
  Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again"
  mm: optimize the redundant loop of mm_update_owner_next()
2024-07-04 09:13:02 -07:00
Daniel Vetter
2879b482a9 Merge tag 'drm-misc-fixes-2024-07-04' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
drm-misc-fixes for v6.10-rc7:
- Add panel quirks.
- Firmware sysfb refcount fix.
- Another null pointer mode deref fix for nouveau.
- Panthor sync and uobj fixes.
- Fix fbdev regression since v6.7.
- Delay free imported bo in ttm to fix lockdep splat.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ffba0c63-2798-40b6-948d-361cd3b14e9f@linux.intel.com
2024-07-04 16:48:03 +02:00
Daniel Vetter
cfbce3bcb2 Driver Changes:
- One copy/paste mistake fix.
 - One error path fix causing an error pointer dereference.
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Merge tag 'drm-xe-fixes-2024-07-04' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

Driver Changes:
- One copy/paste mistake fix.
- One error path fix causing an error pointer dereference.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZoZ-wD66lgjiNh72@fedora
2024-07-04 16:44:16 +02:00
Pavan Chebbi
5d350dc342 bnxt_en: Fix the resource check condition for RSS contexts
While creating a new RSS context, bnxt_rfs_capable() currently
makes a strict check to see if the required VNICs are already
available.  If the current VNICs are not what is required,
either too many or not enough, it will call the firmware to
reserve the exact number required.

There is a bug in the firmware when the driver tries to
relinquish some reserved VNICs and RSS contexts.  It will
cause the default VNIC to lose its RSS configuration and
cause receive packets to be placed incorrectly.

Workaround this problem by skipping the resource reduction.
The driver will not reduce the VNIC and RSS context reservations
when a context is deleted.  The resources will be available for
use when new contexts are created later.

Potentially, this workaround can cause us to run out of VNIC
and RSS contexts if there are a lot of VF functions creating
and deleting RSS contexts.  In the future, we will conditionally
disable this workaround when the firmware fix is available.

Fixes: 438ba39b25 ("bnxt_en: Improve RSS context reservation infrastructure")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/netdev/20240625010210.2002310-1-kuba@kernel.org/
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240703180112.78590-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-04 07:40:27 -07:00
Aleksandr Mishin
8ce34dccbe mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file
In case of invalid INI file mlxsw_linecard_types_init() deallocates memory
but doesn't reset pointer to NULL and returns 0. In case of any error
occurred after mlxsw_linecard_types_init() call, mlxsw_linecards_init()
calls mlxsw_linecard_types_fini() which performs memory deallocation again.

Add pointer reset to NULL.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: b217127e5e ("mlxsw: core_linecards: Add line card objects and implement provisioning")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Link: https://patch.msgid.link/20240703203251.8871-1-amishin@t-argos.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-04 07:34:42 -07:00
Jakub Kicinski
eec5969cc3 wireless fixes for v6.10
Hopefully the last fixes for v6.10. Fix a regression in wilc1000 where
 bitrate Information Elements longer than 255 bytes were broken.
 Few fixes also to mac80211 and iwlwifi.
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Merge tag 'wireless-2024-07-04' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Kalle Valo says:

====================
wireless fixes for v6.10

Hopefully the last fixes for v6.10. Fix a regression in wilc1000
where bitrate Information Elements longer than 255 bytes were broken.
Few fixes also to mac80211 and iwlwifi.

* tag 'wireless-2024-07-04' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: iwlwifi: mvm: check vif for NULL/ERR_PTR before dereference
  wifi: iwlwifi: mvm: avoid link lookup in statistics
  wifi: iwlwifi: mvm: don't wake up rx_sync_waitq upon RFKILL
  wifi: iwlwifi: properly set WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK
  wifi: wilc1000: fix ies_len type in connect path
  wifi: mac80211: fix BSS_CHANGED_UNSOL_BCAST_PROBE_RESP
====================

Link: https://patch.msgid.link/20240704111431.11DEDC3277B@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-04 07:31:55 -07:00
Daniel Vetter
4931c01beb Merge tag 'drm-intel-fixes-2024-07-02' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
drm/i915 fixes for v6.10-rc7:
- Skip unnecessary MG programming, avoiding warnings (Imre)

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87frss9ozs.fsf@intel.com
2024-07-04 16:14:18 +02:00
Paolo Abeni
e367197166 netfilter pull request 24-07-04
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Merge tag 'nf-24-07-04' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following batch contains a oneliner patch to inconditionally flush
workqueue containing stale objects to be released, syzbot managed to
trigger UaF. Patch from Florian Westphal.

netfilter pull request 24-07-04

* tag 'nf-24-07-04' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_tables: unconditionally flush pending work before notifier
====================

Link: https://patch.msgid.link/20240703223304.1455-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-07-04 15:31:27 +02:00