Commit Graph

9037 Commits

Author SHA1 Message Date
Masahiro Yamada
290fc035df kconfig: gconf: add static qualifiers to variables
I also removed unnecessary initializers.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:35 +09:00
Masahiro Yamada
b4809e25e2 kconfig: gconf: remove unused 'color' variable
This is not used at all.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:35 +09:00
Masahiro Yamada
57b63d17f7 kconfig: gconf: remove unneeded variables in on_treeview*_button_press_event()
Not all position parameters are used here. Passing NULL to
gtk_tree_view_get_cursor() or gtk_tree_view_get_path_at_pos() is
allowed. [1] [2]

[1]: https://gitlab.gnome.org/GNOME/gtk/-/blob/2.24.33/gtk/gtktreeview.c#L12638
[1]: https://gitlab.gnome.org/GNOME/gtk/-/blob/2.24.33/gtk/gtktreeview.c#L12795

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:35 +09:00
Masahiro Yamada
8e3136eb27 kconfig: gconf: remove unneeded variable in on_split_clicked()
The height of the window is not used here. Passing NULL to
gtk_window_get_default_size() is allowed. [1]

[1]: https://gitlab.gnome.org/GNOME/gtk/-/blob/2.24.33/gtk/gtkwindow.c#L3974

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
9b8338fd45 kconfig: gconf: remove unnecessary NULL checks for tree1 and tree2
The tree1 and tree2 variables are initialized earlier in
init_tree_model(), so the NULL checks are redundant.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
b3841b501c kconfig: gconf: remove parents[] array and indent variable
The parents[] array is used to store the GtkTreeIter of parent nodes,
but this can be simplified: we can pass a GtkTreeIter pointer down
when _display_tree() recurses.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
a54b0397d3 kconfig: gconf: remove internal-child="image" nodes from glade
These nodes do not appear to serve anything useful.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
f931a5d37a kconfig: gconf: remove unnecessary gtk_set_locale() call
gtk_set_locale() has been deprecated since version 2.24, and setlocale()
should be used directly. [1]

However, gtk_init() automatically does this, so there is typically no
point in calling this function.

[1]: https://gitlab.gnome.org/GNOME/gtk/-/blob/2.24.33/gtk/gtkmain.c#L1152

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
ace8bee836 kconfig: gconf: remove gtk_tree_view_set_rules_hint() calls
The use of the this function is not recommended, and it has been
deprecated since GTK 3.14.

[1]: https://gitlab.gnome.org/GNOME/gtk/-/blob/3.14.0/gtk/gtktreeview.c#L11891

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
dc1de6c03b kconfig: gconf: remove gtk_widget_realize() calls
This function is primarily used in widget implementations, and isn't
very useful otherwise.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
ede0a43249 kconfig: gconf: remove gtk_tree_view_column_set_visible() calls
The columns are visible by default.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
0872643688 kconfig: gconf: remove unneeded gtk_tree_view_set_headers_visible() calls
The headers are visible by default.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
5575df3d3a kconfig: gconf: remove meaningless code in init_main_window()
The 'widget' variable is set, but not used in later code.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
ab2924ab5e kconfig: gconf: remove empty if-block
This if-block is empty.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
bff576a2a9 kconfig: gconf: remove old #ifdef GTK_CHECK_VERSION
Remove old code.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-07-01 20:07:34 +09:00
Masahiro Yamada
02bb13bd6c kconfig: gconf: always destroy dialog in on_window1_delete_event()
When gtk_dialog_run() returns GTK_RESPONSE_YES or GTK_RESPONSE_NO,
gtk_widget_destroy() is not called, resulting in a memory leak.

It is better to always destroy the dialog, even if the application
is about to exit.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
2025-07-01 20:07:25 +09:00
Masahiro Yamada
f72ed4c6a3 kconfig: gconf: fix potential memory leak in renderer_edited()
If gtk_tree_model_get_iter() fails, gtk_tree_path_free() is not called.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
2025-06-30 13:20:56 +09:00
Masahiro Yamada
2f2d60f489 kconfig: gconf: make columns resizable
The variable "resizeable" is a typo and always set to FALSE, resulting
in dead code in init_right_tree(). It is unclear column resizing should
be disabled. Enable it.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
2025-06-30 13:20:42 +09:00
Masahiro Yamada
7d1bfaa457 kconfig: re-add menu_get_parent_menu() that returns parent menu
This helper returns the parent menu, or NULL if there is no parent.
The main difference from the previous version is that it always returns
the parent menu even when the given argument is itself a menu.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
2025-06-30 13:20:23 +09:00
Masahiro Yamada
3c292cd004 kconfig: rename menu_get_parent_menu() to menu_get_menu_or_parent_menu()
The current menu_get_parent_menu() does not always return the parent
menu; if the given argument is itself a menu, it returns that menu.

Rename this function to better reflect this behavior.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
2025-06-30 12:52:58 +09:00
Masahiro Yamada
604f5b2127 kconfig: qconf: show selected choice in the Value column
It is useful to display the selected choice's value in the Value column.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
2025-06-30 12:39:04 +09:00
Masahiro Yamada
cd5f1534a3 kconfig: qconf: do not show checkbox icon for choice
When you select "Show All Options" or "Show Prompt Options", choice
entries display a check box icon, but this has no point because
choice is always y since commit fde192511bdb ("kconfig: remove tristate
choice support").

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
2025-06-30 12:36:43 +09:00
Masahiro Yamada
b04c7e88bc kconfig: set MENU_CHANGED to choice when the selected member is changed
In gconf, choice entries display the selected symbol in the 'Value'
column, but it is not updated when the selected symbol is changed.

Set the MENU_CHANGED flag, so it is updated.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-28 01:57:59 +09:00
Yann E. MORIN
694174f94e kconfig: lxdialog: fix 'space' to (de)select options
In case a menu has comment without letters/numbers (eg. characters
matching the regexp '^[^[:alpha:][:digit:]]+$', for example - or *),
hitting space will cycle through those comments, rather than
selecting/deselecting the currently-highlighted option.

This is the behaviour of hitting any letter/digit: jump to the next
option which prompt starts with that letter. The only letters that
do not behave as such are 'y' 'm' and 'n'. Prompts that start with
one of those three letters are instead matched on the first letter
that is not 'y', 'm' or 'n'.

Fix that by treating 'space' as we treat y/m/n, ie. as an action key,
not as shortcut to jump to  prompt.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Cherniaev Andrei <dungeonlords789@naver.com>
[masahiro: took from Buildroot, adjusted the commit subject]
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-24 20:30:27 +09:00
Thomas Meyer
0a1eab129f kconfig: use memcmp instead of deprecated bcmp
bcmp() was removed in POSIX.1-2008.

This commit replaces bcmp() with memcmp(). This allows Kconfig to link
with C libraries that do not provide bcmp(), such as Android bionic
libc.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reported-by: Abhigyan Ghosh <zscript.team.zs@gmail.com>
[masahiro: update commit description]
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-18 10:11:15 +09:00
Sami Tolvanen
2f6b47b295 gendwarfksyms: Fix structure type overrides
As we always iterate through the entire die_map when expanding
type strings, recursively processing referenced types in
type_expand_child() is not actually necessary. Furthermore,
the type_string kABI rule added in commit c9083467f7b9
("gendwarfksyms: Add a kABI rule to override type strings") can
fail to override type strings for structures due to a missing
kabi_get_type_string() check in this function.

Fix the issue by dropping the unnecessary recursion and moving
the override check to type_expand(). Note that symbol versions
are otherwise unchanged with this patch.

Fixes: c9083467f7b9 ("gendwarfksyms: Add a kABI rule to override type strings")
Reported-by: Giuliano Procida <gprocida@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-16 00:49:48 +09:00
Masahiro Yamada
a6a7946bd6 kbuild: move warnings about linux/export.h from W=1 to W=2
This hides excessive warnings, as nobody builds with W=2.

Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include <linux/export.h> when W=1")
Fixes: 7d95680d64ac ("scripts/misc-check: check unnecessary #include <linux/export.h> when W=1")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
2025-06-16 00:41:40 +09:00
Linus Torvalds
8630c59e99 Kbuild updates for v6.16
- Add support for the EXPORT_SYMBOL_GPL_FOR_MODULES() macro, which exports a
    symbol only to specified modules
 
  - Improve ABI handling in gendwarfksyms
 
  - Forcibly link lib-y objects to vmlinux even if CONFIG_MODULES=n
 
  - Add checkers for redundant or missing <linux/export.h> inclusion
 
  - Deprecate the extra-y syntax
 
  - Fix a genksyms bug when including enum constants from *.symref files
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Merge tag 'kbuild-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Add support for the EXPORT_SYMBOL_GPL_FOR_MODULES() macro, which
   exports a symbol only to specified modules

 - Improve ABI handling in gendwarfksyms

 - Forcibly link lib-y objects to vmlinux even if CONFIG_MODULES=n

 - Add checkers for redundant or missing <linux/export.h> inclusion

 - Deprecate the extra-y syntax

 - Fix a genksyms bug when including enum constants from *.symref files

* tag 'kbuild-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (28 commits)
  genksyms: Fix enum consts from a reference affecting new values
  arch: use always-$(KBUILD_BUILTIN) for vmlinux.lds
  kbuild: set y instead of 1 to KBUILD_{BUILTIN,MODULES}
  efi/libstub: use 'targets' instead of extra-y in Makefile
  module: make __mod_device_table__* symbols static
  scripts/misc-check: check unnecessary #include <linux/export.h> when W=1
  scripts/misc-check: check missing #include <linux/export.h> when W=1
  scripts/misc-check: add double-quotes to satisfy shellcheck
  kbuild: move W=1 check for scripts/misc-check to top-level Makefile
  scripts/tags.sh: allow to use alternative ctags implementation
  kconfig: introduce menu type enum
  docs: symbol-namespaces: fix reST warning with literal block
  kbuild: link lib-y objects to vmlinux forcibly even when CONFIG_MODULES=n
  tinyconfig: enable CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
  docs/core-api/symbol-namespaces: drop table of contents and section numbering
  modpost: check forbidden MODULE_IMPORT_NS("module:") at compile time
  kbuild: move kbuild syntax processing to scripts/Makefile.build
  Makefile: remove dependency on archscripts for header installation
  Documentation/kbuild: Add new gendwarfksyms kABI rules
  Documentation/kbuild: Drop section numbers
  ...
2025-06-07 10:05:35 -07:00
Petr Pavlu
c50a04f8f4 genksyms: Fix enum consts from a reference affecting new values
Enumeration constants read from a symbol reference file can incorrectly
affect new enumeration constants parsed from an actual input file.

Example:

 $ cat test.c
 enum { E_A, E_B, E_MAX };
 struct bar { int mem[E_MAX]; };
 int foo(struct bar *a) {}
 __GENKSYMS_EXPORT_SYMBOL(foo);

 $ cat test.c | ./scripts/genksyms/genksyms -T test.0.symtypes
 #SYMVER foo 0x070d854d

 $ cat test.0.symtypes
 E#E_MAX 2
 s#bar struct bar { int mem [ E#E_MAX ] ; }
 foo int foo ( s#bar * )

 $ cat test.c | ./scripts/genksyms/genksyms -T test.1.symtypes -r test.0.symtypes
 <stdin>:4: warning: foo: modversion changed because of changes in enum constant E_MAX
 #SYMVER foo 0x9c9dfd81

 $ cat test.1.symtypes
 E#E_MAX ( 2 ) + 3
 s#bar struct bar { int mem [ E#E_MAX ] ; }
 foo int foo ( s#bar * )

The __add_symbol() function includes logic to handle the incrementation of
enumeration values, but this code is also invoked when reading a reference
file. As a result, the variables last_enum_expr and enum_counter might be
incorrectly set after reading the reference file, which later affects
parsing of the actual input.

Fix the problem by splitting the logic for the incrementation of
enumeration values into a separate function process_enum() and call it from
__add_symbol() only when processing non-reference data.

Fixes: e37ddb825003 ("genksyms: Track changes to enum constants")
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-07 14:38:07 +09:00
Linus Torvalds
c26f4fbd58 Char/Misc/IIO pull request for 6.16-rc1
Here is the big char/misc/iio and other small driver subsystem pull
 request for 6.16-rc1.
 
 Overall, a lot of individual changes, but nothing major, just the normal
 constant forward progress of new device support and cleanups to existing
 subsystems.  Highlights in here are:
   - Large IIO driver updates and additions and device tree changes
   - Android binder bugfixes and logfile fixes
   - mhi driver updates
   - comedi driver updates
   - counter driver updates and additions
   - coresight driver updates and additions
   - echo driver removal as there are no in-kernel users of it
   - nvmem driver updates
   - spmi driver updates
   - new amd-sbi driver "subsystem" and drivers added
   - rust miscdriver binding documentation fix
   - other small driver fixes and updates (uio, w1, acrn, hpet, xillybus,
     cardreader drivers, fastrpc and others.)
 
 All of these have been in linux-next for quite a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc / iio driver updates from Greg KH:
 "Here is the big char/misc/iio and other small driver subsystem pull
  request for 6.16-rc1.

  Overall, a lot of individual changes, but nothing major, just the
  normal constant forward progress of new device support and cleanups to
  existing subsystems. Highlights in here are:

   - Large IIO driver updates and additions and device tree changes

   - Android binder bugfixes and logfile fixes

   - mhi driver updates

   - comedi driver updates

   - counter driver updates and additions

   - coresight driver updates and additions

   - echo driver removal as there are no in-kernel users of it

   - nvmem driver updates

   - spmi driver updates

   - new amd-sbi driver "subsystem" and drivers added

   - rust miscdriver binding documentation fix

   - other small driver fixes and updates (uio, w1, acrn, hpet,
     xillybus, cardreader drivers, fastrpc and others)

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

* tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (390 commits)
  binder: fix yet another UAF in binder_devices
  counter: microchip-tcb-capture: Add watch validation support
  dt-bindings: iio: adc: Add ROHM BD79100G
  iio: adc: add support for Nuvoton NCT7201
  dt-bindings: iio: adc: add NCT7201 ADCs
  iio: chemical: Add driver for SEN0322
  dt-bindings: trivial-devices: Document SEN0322
  iio: adc: ad7768-1: reorganize driver headers
  iio: bmp280: zero-init buffer
  iio: ssp_sensors: optimalize -> optimize
  HID: sensor-hub: Fix typo and improve documentation
  iio: admv1013: replace redundant ternary operator with just len
  iio: chemical: mhz19b: Fix error code in probe()
  iio: adc: at91-sama5d2: use IIO_DECLARE_BUFFER_WITH_TS
  iio: accel: sca3300: use IIO_DECLARE_BUFFER_WITH_TS
  iio: adc: ad7380: use IIO_DECLARE_DMA_BUFFER_WITH_TS
  iio: adc: ad4695: rename AD4695_MAX_VIN_CHANNELS
  iio: adc: ad4695: use IIO_DECLARE_DMA_BUFFER_WITH_TS
  iio: introduce IIO_DECLARE_BUFFER_WITH_TS macros
  iio: make IIO_DMA_MINALIGN minimum of 8 bytes
  ...
2025-06-06 11:50:47 -07:00
Masahiro Yamada
7d95680d64 scripts/misc-check: check unnecessary #include <linux/export.h> when W=1
Another issue with <linux/export.h> is that it is sometimes included
even when EXPORT_SYMBOL() is not used at all.

Some headers (e.g. include/linux/linkage.h>) cannot be fixed for now
for the reason described in the previous commit.

This commit adds a warning for *.c files that include <linux/export.h>
but do not use EXPORT_SYMBOL() when the kernel is built with W=1.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-06 05:40:25 +09:00
Masahiro Yamada
a934a57a42 scripts/misc-check: check missing #include <linux/export.h> when W=1
The problem was described in commit 5b20755b7780 ("init: move THIS_MODULE
from <linux/export.h> to <linux/init.h>").

To summarize it again here: <linux/export.h> is included by most C files,
even though only some of them actually export symbols. This is because
some headers, such as include/linux/{module.h,linkage}, needlessly
include <linux/export.h>.

I have added a more detailed explanation in the comments of
scripts/misc-check.

This problem will be fixed in two steps:

 1. Add #include <linux/export.h> directly to C files that use
    EXPORT_SYMBOL()
 2. Remove #include <linux/export.h> from header files that do not use
    EXPORT_SYMBOL()

This commit addresses step 1; scripts/misc-check will warn about *.[ch]
files that use EXPORT_SYMBOL() but do not include <linux/export.h>.
This check is only triggered when the kernel is built with W=1.

We need to fix 4000+ files. I hope others will help with this effort.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-06 05:40:25 +09:00
Masahiro Yamada
3a44052b72 scripts/misc-check: add double-quotes to satisfy shellcheck
In scripts/misc-check line 8:
        git -C ${srctree:-.} ls-files -i -c --exclude-per-directory=.gitignore 2>/dev/null |
               ^-----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-06 05:40:25 +09:00
Masahiro Yamada
89e7fecf5c kbuild: move W=1 check for scripts/misc-check to top-level Makefile
This script is executed only when ${KBUILD_EXTRA_WARN} contains 1.
Move this check to the top-level Makefile to allow more checks to be
easily added to this script.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
2025-06-06 05:40:25 +09:00
Masatake YAMATO
a503a31310 scripts/tags.sh: allow to use alternative ctags implementation
Some ctags implementations are available. With this change, You can
specify your favorite one with CTAGS environment variable.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-06 05:40:25 +09:00
Masahiro Yamada
0f57c75973 kconfig: introduce menu type enum
Currently, menu->prompt->type is checked to distinguish "comment"
(P_COMMENT) and "menu" (P_MENU) entries from regular "config" entries.
This is odd because P_COMMENT and P_MENU are not properties.

This commit introduces menu type enum to distinguish menu types more
naturally.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-06-06 05:40:25 +09:00
Linus Torvalds
ec7714e494 Rust changes for v6.16
Toolchain and infrastructure:
 
  - KUnit '#[test]'s:
 
    - Support KUnit-mapped 'assert!' macros.
 
      The support that landed last cycle was very basic, and the
      'assert!' macros panicked since they were the standard library
      ones. Now, they are mapped to the KUnit ones in a similar way to
      how is done for doctests, reusing the infrastructure there.
 
      With this, a failing test like:
 
          #[test]
          fn my_first_test() {
              assert_eq!(42, 43);
          }
 
      will report:
 
          # my_first_test: ASSERTION FAILED at rust/kernel/lib.rs:251
          Expected 42 == 43 to be true, but is false
          # my_first_test.speed: normal
          not ok 1 my_first_test
 
    - Support tests with checked 'Result' return types.
 
      The return value of test functions that return a 'Result' will be
      checked, thus one can now easily catch errors when e.g. using the
      '?' operator in tests.
 
      With this, a failing test like:
 
          #[test]
          fn my_test() -> Result {
              f()?;
              Ok(())
          }
 
      will report:
 
          # my_test: ASSERTION FAILED at rust/kernel/lib.rs:321
          Expected is_test_result_ok(my_test()) to be true, but is false
          # my_test.speed: normal
          not ok 1 my_test
 
    - Add 'kunit_tests' to the prelude.
 
  - Clarify the remaining language unstable features in use.
 
  - Compile 'core' with edition 2024 for Rust >= 1.87.
 
  - Workaround 'bindgen' issue with forward references to 'enum' types.
 
  - objtool: relax slice condition to cover more 'noreturn' functions.
 
  - Use absolute paths in macros referencing 'core' and 'kernel' crates.
 
  - Skip '-mno-fdpic' flag for bindgen in GCC 32-bit arm builds.
 
  - Clean some 'doc_markdown' lint hits -- we may enable it later on.
 
 'kernel' crate:
 
  - 'alloc' module:
 
    - 'Box': support for type coercion, e.g. 'Box<T>' to 'Box<dyn U>' if
      'T' implements 'U'.
 
    - 'Vec': implement new methods (prerequisites for nova-core and
      binder): 'truncate', 'resize', 'clear', 'pop',
      'push_within_capacity' (with new error type 'PushError'),
      'drain_all', 'retain', 'remove' (with new error type
      'RemoveError'), insert_within_capacity' (with new error type
      'InsertError').
 
      In addition, simplify 'push' using 'spare_capacity_mut', split
      'set_len' into 'inc_len' and 'dec_len', add type invariant
      'len <= capacity' and simplify 'truncate' using 'dec_len'.
 
  - 'time' module:
 
    - Morph the Rust hrtimer subsystem into the Rust timekeeping
      subsystem, covering delay, sleep, timekeeping, timers. This new
      subsystem has all the relevant timekeeping C maintainers listed in
      the entry.
 
    - Replace 'Ktime' with 'Delta' and 'Instant' types to represent a
      duration of time and a point in time.
 
    - Temporarily add 'Ktime' to 'hrtimer' module to allow 'hrtimer' to
      delay converting to 'Instant' and 'Delta'.
 
  - 'xarray' module:
 
    - Add a Rust abstraction for the 'xarray' data structure. This
      abstraction allows Rust code to leverage the 'xarray' to store
      types that implement 'ForeignOwnable'. This support is a dependency
      for memory backing feature of the Rust null block driver, which is
      waiting to be merged.
 
    - Set up an entry in 'MAINTAINERS' for the XArray Rust support.
      Patches will go to the new Rust XArray tree and then via the Rust
      subsystem tree for now.
 
    - Allow 'ForeignOwnable' to carry information about the pointed-to
      type. This helps asserting alignment requirements for the pointer
      passed to the foreign language.
 
  - 'container_of!': retain pointer mut-ness and add a compile-time check
    of the type of the first parameter ('$field_ptr').
 
  - Support optional message in 'static_assert!'.
 
  - Add C FFI types (e.g. 'c_int') to the prelude.
 
  - 'str' module: simplify KUnit tests 'format!' macro, convert
    'rusttest' tests into KUnit, take advantage of the '-> Result'
    support in KUnit '#[test]'s.
 
  - 'list' module: add examples for 'List', fix path of 'assert_pinned!'
    (so far unused macro rule).
 
  - 'workqueue' module: remove 'HasWork::OFFSET'.
 
  - 'page' module: add 'inline' attribute.
 
 'macros' crate:
 
  - 'module' macro: place 'cleanup_module()' in '.exit.text' section.
 
 'pin-init' crate:
 
  - Add 'Wrapper<T>' trait for creating pin-initializers for wrapper
    structs with a structurally pinned value such as 'UnsafeCell<T>' or
    'MaybeUninit<T>'.
 
  - Add 'MaybeZeroable' derive macro to try to derive 'Zeroable', but
    not error if not all fields implement it. This is needed to derive
    'Zeroable' for all bindgen-generated structs.
 
  - Add 'unsafe fn cast_[pin_]init()' functions to unsafely change the
    initialized type of an initializer. These are utilized by the
    'Wrapper<T>' implementations.
 
  - Add support for visibility in 'Zeroable' derive macro.
 
  - Add support for 'union's in 'Zeroable' derive macro.
 
  - Upstream dev news: streamline CI, fix some bugs. Add new workflows
    to check if the user-space version and the one in the kernel tree
    have diverged. Use the issues tab [1] to track them, which should
    help folks report and diagnose issues w.r.t. 'pin-init' better.
 
      [1] https://github.com/rust-for-linux/pin-init/issues
 
 Documentation:
 
  - Testing: add docs on the new KUnit '#[test]' tests.
 
  - Coding guidelines: explain that '///' vs. '//' applies to private
    items too. Add section on C FFI types.
 
  - Quick Start guide: update Ubuntu instructions and split them into
    "25.04" and "24.04 LTS and older".
 
 And a few other cleanups and improvements.
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Merge tag 'rust-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Pull Rust updates from Miguel Ojeda:
 "Toolchain and infrastructure:

   - KUnit '#[test]'s:

      - Support KUnit-mapped 'assert!' macros.

        The support that landed last cycle was very basic, and the
        'assert!' macros panicked since they were the standard library
        ones. Now, they are mapped to the KUnit ones in a similar way to
        how is done for doctests, reusing the infrastructure there.

        With this, a failing test like:

            #[test]
            fn my_first_test() {
                assert_eq!(42, 43);
            }

        will report:

            # my_first_test: ASSERTION FAILED at rust/kernel/lib.rs:251
            Expected 42 == 43 to be true, but is false
            # my_first_test.speed: normal
            not ok 1 my_first_test

      - Support tests with checked 'Result' return types.

        The return value of test functions that return a 'Result' will
        be checked, thus one can now easily catch errors when e.g. using
        the '?' operator in tests.

        With this, a failing test like:

            #[test]
            fn my_test() -> Result {
                f()?;
                Ok(())
            }

        will report:

            # my_test: ASSERTION FAILED at rust/kernel/lib.rs:321
            Expected is_test_result_ok(my_test()) to be true, but is false
            # my_test.speed: normal
            not ok 1 my_test

      - Add 'kunit_tests' to the prelude.

   - Clarify the remaining language unstable features in use.

   - Compile 'core' with edition 2024 for Rust >= 1.87.

   - Workaround 'bindgen' issue with forward references to 'enum' types.

   - objtool: relax slice condition to cover more 'noreturn' functions.

   - Use absolute paths in macros referencing 'core' and 'kernel'
     crates.

   - Skip '-mno-fdpic' flag for bindgen in GCC 32-bit arm builds.

   - Clean some 'doc_markdown' lint hits -- we may enable it later on.

  'kernel' crate:

   - 'alloc' module:

      - 'Box': support for type coercion, e.g. 'Box<T>' to 'Box<dyn U>'
        if 'T' implements 'U'.

      - 'Vec': implement new methods (prerequisites for nova-core and
        binder): 'truncate', 'resize', 'clear', 'pop',
        'push_within_capacity' (with new error type 'PushError'),
        'drain_all', 'retain', 'remove' (with new error type
        'RemoveError'), insert_within_capacity' (with new error type
        'InsertError').

        In addition, simplify 'push' using 'spare_capacity_mut', split
        'set_len' into 'inc_len' and 'dec_len', add type invariant 'len
        <= capacity' and simplify 'truncate' using 'dec_len'.

   - 'time' module:

      - Morph the Rust hrtimer subsystem into the Rust timekeeping
        subsystem, covering delay, sleep, timekeeping, timers. This new
        subsystem has all the relevant timekeeping C maintainers listed
        in the entry.

      - Replace 'Ktime' with 'Delta' and 'Instant' types to represent a
        duration of time and a point in time.

      - Temporarily add 'Ktime' to 'hrtimer' module to allow 'hrtimer'
        to delay converting to 'Instant' and 'Delta'.

   - 'xarray' module:

      - Add a Rust abstraction for the 'xarray' data structure. This
        abstraction allows Rust code to leverage the 'xarray' to store
        types that implement 'ForeignOwnable'. This support is a
        dependency for memory backing feature of the Rust null block
        driver, which is waiting to be merged.

      - Set up an entry in 'MAINTAINERS' for the XArray Rust support.
        Patches will go to the new Rust XArray tree and then via the
        Rust subsystem tree for now.

      - Allow 'ForeignOwnable' to carry information about the pointed-to
        type. This helps asserting alignment requirements for the
        pointer passed to the foreign language.

   - 'container_of!': retain pointer mut-ness and add a compile-time
     check of the type of the first parameter ('$field_ptr').

   - Support optional message in 'static_assert!'.

   - Add C FFI types (e.g. 'c_int') to the prelude.

   - 'str' module: simplify KUnit tests 'format!' macro, convert
     'rusttest' tests into KUnit, take advantage of the '-> Result'
     support in KUnit '#[test]'s.

   - 'list' module: add examples for 'List', fix path of
     'assert_pinned!' (so far unused macro rule).

   - 'workqueue' module: remove 'HasWork::OFFSET'.

   - 'page' module: add 'inline' attribute.

  'macros' crate:

   - 'module' macro: place 'cleanup_module()' in '.exit.text' section.

  'pin-init' crate:

   - Add 'Wrapper<T>' trait for creating pin-initializers for wrapper
     structs with a structurally pinned value such as 'UnsafeCell<T>' or
     'MaybeUninit<T>'.

   - Add 'MaybeZeroable' derive macro to try to derive 'Zeroable', but
     not error if not all fields implement it. This is needed to derive
     'Zeroable' for all bindgen-generated structs.

   - Add 'unsafe fn cast_[pin_]init()' functions to unsafely change the
     initialized type of an initializer. These are utilized by the
     'Wrapper<T>' implementations.

   - Add support for visibility in 'Zeroable' derive macro.

   - Add support for 'union's in 'Zeroable' derive macro.

   - Upstream dev news: streamline CI, fix some bugs. Add new workflows
     to check if the user-space version and the one in the kernel tree
     have diverged. Use the issues tab [1] to track them, which should
     help folks report and diagnose issues w.r.t. 'pin-init' better.

       [1] https://github.com/rust-for-linux/pin-init/issues

  Documentation:

   - Testing: add docs on the new KUnit '#[test]' tests.

   - Coding guidelines: explain that '///' vs. '//' applies to private
     items too. Add section on C FFI types.

   - Quick Start guide: update Ubuntu instructions and split them into
     "25.04" and "24.04 LTS and older".

  And a few other cleanups and improvements"

* tag 'rust-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (78 commits)
  rust: list: Fix typo `much` in arc.rs
  rust: check type of `$ptr` in `container_of!`
  rust: workqueue: remove HasWork::OFFSET
  rust: retain pointer mut-ness in `container_of!`
  Documentation: rust: testing: add docs on the new KUnit `#[test]` tests
  Documentation: rust: rename `#[test]`s to "`rusttest` host tests"
  rust: str: take advantage of the `-> Result` support in KUnit `#[test]`'s
  rust: str: simplify KUnit tests `format!` macro
  rust: str: convert `rusttest` tests into KUnit
  rust: add `kunit_tests` to the prelude
  rust: kunit: support checked `-> Result`s in KUnit `#[test]`s
  rust: kunit: support KUnit-mapped `assert!` macros in `#[test]`s
  rust: make section names plural
  rust: list: fix path of `assert_pinned!`
  rust: compile libcore with edition 2024 for 1.87+
  rust: dma: add missing Markdown code span
  rust: task: add missing Markdown code spans and intra-doc links
  rust: pci: fix docs related to missing Markdown code spans
  rust: alloc: add missing Markdown code span
  rust: alloc: add missing Markdown code spans
  ...
2025-06-04 21:18:37 -07:00
Linus Torvalds
fd1f847350 - The 2 patch series "zram: support algorithm-specific parameters" from
Sergey Senozhatsky adds infrastructure for passing algorithm-specific
   parameters into zram.  A single parameter `winbits' is implemented at
   this time.
 
 - The 5 patch series "memcg: nmi-safe kmem charging" from Shakeel Butt
   makes memcg charging nmi-safe, which is required by BFP, which can
   operate in NMI context.
 
 - The 5 patch series "Some random fixes and cleanup to shmem" from
   Kemeng Shi implements small fixes and cleanups in the shmem code.
 
 - The 2 patch series "Skip mm selftests instead when kernel features are
   not present" from Zi Yan fixes some issues in the MM selftest code.
 
 - The 2 patch series "mm/damon: build-enable essential DAMON components
   by default" from SeongJae Park reworks DAMON Kconfig to make it easier
   to enable CONFIG_DAMON.
 
 - The 2 patch series "sched/numa: add statistics of numa balance task
   migration" from Libo Chen adds more info into sysfs and procfs files to
   improve visibility into the NUMA balancer's task migration activity.
 
 - The 4 patch series "selftests/mm: cow and gup_longterm cleanups" from
   Mark Brown provides various updates to some of the MM selftests to make
   them play better with the overall containing framework.
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Merge tag 'mm-stable-2025-06-01-14-06' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more MM updates from Andrew Morton:

 - "zram: support algorithm-specific parameters" from Sergey Senozhatsky
   adds infrastructure for passing algorithm-specific parameters into
   zram. A single parameter `winbits' is implemented at this time.

 - "memcg: nmi-safe kmem charging" from Shakeel Butt makes memcg
   charging nmi-safe, which is required by BFP, which can operate in NMI
   context.

 - "Some random fixes and cleanup to shmem" from Kemeng Shi implements
   small fixes and cleanups in the shmem code.

 - "Skip mm selftests instead when kernel features are not present" from
   Zi Yan fixes some issues in the MM selftest code.

 - "mm/damon: build-enable essential DAMON components by default" from
   SeongJae Park reworks DAMON Kconfig to make it easier to enable
   CONFIG_DAMON.

 - "sched/numa: add statistics of numa balance task migration" from Libo
   Chen adds more info into sysfs and procfs files to improve visibility
   into the NUMA balancer's task migration activity.

 - "selftests/mm: cow and gup_longterm cleanups" from Mark Brown
   provides various updates to some of the MM selftests to make them
   play better with the overall containing framework.

* tag 'mm-stable-2025-06-01-14-06' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (43 commits)
  mm/khugepaged: clean up refcount check using folio_expected_ref_count()
  selftests/mm: fix test result reporting in gup_longterm
  selftests/mm: report unique test names for each cow test
  selftests/mm: add helper for logging test start and results
  selftests/mm: use standard ksft_finished() in cow and gup_longterm
  selftests/damon/_damon_sysfs: skip testcases if CONFIG_DAMON_SYSFS is disabled
  sched/numa: add statistics of numa balance task
  sched/numa: fix task swap by skipping kernel threads
  tools/testing: check correct variable in open_procmap()
  tools/testing/vma: add missing function stub
  mm/gup: update comment explaining why gup_fast() disables IRQs
  selftests/mm: two fixes for the pfnmap test
  mm/khugepaged: fix race with folio split/free using temporary reference
  mm: add CONFIG_PAGE_BLOCK_ORDER to select page block order
  mmu_notifiers: remove leftover stub macros
  selftests/mm: deduplicate test names in madv_populate
  kcov: rust: add flags for KCOV with Rust
  mm: rust: make CONFIG_MMU ifdefs more narrow
  mmu_gather: move tlb flush for VM_PFNMAP/VM_MIXEDMAP vmas into free_pgtables()
  mm/damon/Kconfig: enable CONFIG_DAMON by default
  ...
2025-06-02 16:00:26 -07:00
Linus Torvalds
cd2e103d57 hardening fixes for v6.16-rc1 (take 2)
- randstruct: gcc-plugin: Fix attribute addition with GCC 15
 
 - ubsan: integer-overflow: depend on BROKEN to keep this out of CI
 
 - overflow: Introduce __DEFINE_FLEX for having no initializer
 
 - wifi: iwlwifi: mld: Work around Clang loop unrolling bug
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Merge tag 'hardening-v6.16-rc1-fix1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - randstruct: gcc-plugin: Fix attribute addition with GCC 15

 - ubsan: integer-overflow: depend on BROKEN to keep this out of CI

 - overflow: Introduce __DEFINE_FLEX for having no initializer

 - wifi: iwlwifi: mld: Work around Clang loop unrolling bug

[ Take two after a jump scare due to some repo rewriting by 'b4' - Linus ]

* tag 'hardening-v6.16-rc1-fix1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  randstruct: gcc-plugin: Fix attribute addition
  overflow: Introduce __DEFINE_FLEX for having no initializer
  ubsan: integer-overflow: depend on BROKEN to keep this out of CI
  wifi: iwlwifi: mld: Work around Clang loop unrolling bug
2025-06-01 11:37:01 -07:00
Kees Cook
f39f18f3c3 randstruct: gcc-plugin: Fix attribute addition
Based on changes in the 2021 public version of the randstruct
out-of-tree GCC plugin[1], more carefully update the attributes on
resulting decls, to avoid tripping checks in GCC 15's
comptypes_check_enum_int() when it has been configured with
"--enable-checking=misc":

arch/arm64/kernel/kexec_image.c:132:14: internal compiler error: in comptypes_check_enum_int, at c/c-typeck.cc:1519
  132 | const struct kexec_file_ops kexec_image_ops = {
      |              ^~~~~~~~~~~~~~
 internal_error(char const*, ...), at gcc/gcc/diagnostic-global-context.cc:517
 fancy_abort(char const*, int, char const*), at gcc/gcc/diagnostic.cc:1803
 comptypes_check_enum_int(tree_node*, tree_node*, bool*), at gcc/gcc/c/c-typeck.cc:1519
 ...

Link: https://archive.org/download/grsecurity/grsecurity-3.1-5.10.41-202105280954.patch.gz [1]
Reported-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Closes: https://github.com/KSPP/linux/issues/367
Closes: https://lore.kernel.org/lkml/20250530000646.104457-1-thiago.bauermann@linaro.org/
Reported-by: Ingo Saitz <ingo@hannover.ccc.de>
Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1104745
Fixes: 313dd1b62921 ("gcc-plugins: Add the randstruct plugin")
Tested-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Link: https://lore.kernel.org/r/20250530221824.work.623-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
2025-06-01 08:41:11 -07:00
Alice Ryhl
3bf67171e9 kcov: rust: add flags for KCOV with Rust
Rust code is currently not instrumented properly when KCOV is enabled.
Thus, add the relevant flags to perform instrumentation correctly. This
is necessary for efficient fuzzing of Rust code.

The sanitizer-coverage features of LLVM have existed for long enough
that they are available on any LLVM version supported by rustc, so we do
not need any Kconfig feature detection. The coverage level is set to 3,
as that is the level needed by trace-pc.

We do not instrument `core` since when we fuzz the kernel, we are
looking for bugs in the kernel, not the Rust stdlib.

Link: https://lkml.kernel.org/r/20250501-rust-kcov-v2-1-b71e83e9779f@google.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Co-developed-by: Matthew Maurer <mmaurer@google.com>
Signed-off-by: Matthew Maurer <mmaurer@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Tested-by: Aleksandr Nogikh <nogikh@google.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Cc: Andreas Hindborg <a.hindborg@kernel.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Benno Lossin <benno.lossin@proton.me>
Cc: Bill Wendling <morbo@google.com>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Gary Guo <gary@garyguo.net>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Trevor Gross <tmgross@umich.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-31 22:46:12 -07:00
Linus Torvalds
7d4e49a77d - The 3 patch series "hung_task: extend blocking task stacktrace dump to
semaphore" from Lance Yang enhances the hung task detector.  The
   detector presently dumps the blocking tasks's stack when it is blocked
   on a mutex.  Lance's series extends this to semaphores.
 
 - The 2 patch series "nilfs2: improve sanity checks in dirty state
   propagation" from Wentao Liang addresses a couple of minor flaws in
   nilfs2.
 
 - The 2 patch series "scripts/gdb: Fixes related to lx_per_cpu()" from
   Illia Ostapyshyn fixes a couple of issues in the gdb scripts.
 
 - The 9 patch series "Support kdump with LUKS encryption by reusing LUKS
   volume keys" from Coiby Xu addresses a usability problem with kdump.
   When the dump device is LUKS-encrypted, the kdump kernel may not have
   the keys to the encrypted filesystem.  A full writeup of this is in the
   series [0/N] cover letter.
 
 - The 2 patch series "sysfs: add counters for lockups and stalls" from
   Max Kellermann adds /sys/kernel/hardlockup_count and
   /sys/kernel/hardlockup_count and /sys/kernel/rcu_stall_count.
 
 - The 3 patch series "fork: Page operation cleanups in the fork code"
   from Pasha Tatashin implements a number of code cleanups in fork.c.
 
 - The 3 patch series "scripts/gdb/symbols: determine KASLR offset on
   s390 during early boot" from Ilya Leoshkevich fixes some s390 issues in
   the gdb scripts.
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Merge tag 'mm-nonmm-stable-2025-05-31-15-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - "hung_task: extend blocking task stacktrace dump to semaphore" from
   Lance Yang enhances the hung task detector.

   The detector presently dumps the blocking tasks's stack when it is
   blocked on a mutex. Lance's series extends this to semaphores

 - "nilfs2: improve sanity checks in dirty state propagation" from
   Wentao Liang addresses a couple of minor flaws in nilfs2

 - "scripts/gdb: Fixes related to lx_per_cpu()" from Illia Ostapyshyn
   fixes a couple of issues in the gdb scripts

 - "Support kdump with LUKS encryption by reusing LUKS volume keys" from
   Coiby Xu addresses a usability problem with kdump.

   When the dump device is LUKS-encrypted, the kdump kernel may not have
   the keys to the encrypted filesystem. A full writeup of this is in
   the series [0/N] cover letter

 - "sysfs: add counters for lockups and stalls" from Max Kellermann adds
   /sys/kernel/hardlockup_count and /sys/kernel/hardlockup_count and
   /sys/kernel/rcu_stall_count

 - "fork: Page operation cleanups in the fork code" from Pasha Tatashin
   implements a number of code cleanups in fork.c

 - "scripts/gdb/symbols: determine KASLR offset on s390 during early
   boot" from Ilya Leoshkevich fixes some s390 issues in the gdb
   scripts

* tag 'mm-nonmm-stable-2025-05-31-15-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (67 commits)
  llist: make llist_add_batch() a static inline
  delayacct: remove redundant code and adjust indentation
  squashfs: add optional full compressed block caching
  crash_dump, nvme: select CONFIGFS_FS as built-in
  scripts/gdb/symbols: determine KASLR offset on s390 during early boot
  scripts/gdb/symbols: factor out pagination_off()
  scripts/gdb/symbols: factor out get_vmlinux()
  kernel/panic.c: format kernel-doc comments
  mailmap: update and consolidate Casey Connolly's name and email
  nilfs2: remove wbc->for_reclaim handling
  fork: define a local GFP_VMAP_STACK
  fork: check charging success before zeroing stack
  fork: clean-up naming of vm_stack/vm_struct variables in vmap stacks code
  fork: clean-up ifdef logic around stack allocation
  kernel/rcu/tree_stall: add /sys/kernel/rcu_stall_count
  kernel/watchdog: add /sys/kernel/{hard,soft}lockup_count
  x86/crash: make the page that stores the dm crypt keys inaccessible
  x86/crash: pass dm crypt keys to kdump kernel
  Revert "x86/mm: Remove unused __set_memory_prot()"
  crash_dump: retrieve dm crypt keys in kdump kernel
  ...
2025-05-31 19:12:53 -07:00
Linus Torvalds
dee264c16a require gcc-8 and binutils-2.30
x86 already uses gcc-8 as the minimum version, this changes all other
 architectures to the same version. gcc-8 is used is Debian 10 and Red
 Hat Enterprise Linux 8, both of which are still supported, and binutils
 2.30 is the oldest corresponding version on those. Ubuntu Pro 18.04 and
 SUSE Linux Enterprise Server 15 both use gcc-7 as the system compiler
 but additionally include toolchains that remain supported.
 
 With the new minimum toolchain versions, a number of workarounds for older
 versions can be dropped, in particular on x86_64 and arm64.  Importantly,
 the updated compiler version allows removing two of the five remaining
 gcc plugins, as support for sancov and structeak features is already
 included in modern compiler versions.
 
 I tried collecting the known changes that are possible based on the
 new toolchain version, but expect that more cleanups will be possible.
 Since this touches multiple architectures, I merged the patches through
 the asm-generic tree.
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Merge tag 'gcc-minimum-version-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull compiler version requirement update from Arnd Bergmann:
 "Require gcc-8 and binutils-2.30

  x86 already uses gcc-8 as the minimum version, this changes all other
  architectures to the same version. gcc-8 is used is Debian 10 and Red
  Hat Enterprise Linux 8, both of which are still supported, and
  binutils 2.30 is the oldest corresponding version on those.

  Ubuntu Pro 18.04 and SUSE Linux Enterprise Server 15 both use gcc-7 as
  the system compiler but additionally include toolchains that remain
  supported.

  With the new minimum toolchain versions, a number of workarounds for
  older versions can be dropped, in particular on x86_64 and arm64.
  Importantly, the updated compiler version allows removing two of the
  five remaining gcc plugins, as support for sancov and structeak
  features is already included in modern compiler versions.

  I tried collecting the known changes that are possible based on the
  new toolchain version, but expect that more cleanups will be possible.

  Since this touches multiple architectures, I merged the patches
  through the asm-generic tree."

* tag 'gcc-minimum-version-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  Makefile.kcov: apply needed compiler option unconditionally in CFLAGS_KCOV
  Documentation: update binutils-2.30 version reference
  gcc-plugins: remove SANCOV gcc plugin
  Kbuild: remove structleak gcc plugin
  arm64: drop binutils version checks
  raid6: skip avx512 checks
  kbuild: require gcc-8 and binutils-2.30
2025-05-31 08:16:52 -07:00
Linus Torvalds
43db111107 ARM:
* Add large stage-2 mapping (THP) support for non-protected guests when
   pKVM is enabled, clawing back some performance.
 
 * Enable nested virtualisation support on systems that support it,
   though it is disabled by default.
 
 * Add UBSAN support to the standalone EL2 object used in nVHE/hVHE and
   protected modes.
 
 * Large rework of the way KVM tracks architecture features and links
   them with the effects of control bits. While this has no functional
   impact, it ensures correctness of emulation (the data is automatically
   extracted from the published JSON files), and helps dealing with the
   evolution of the architecture.
 
 * Significant changes to the way pKVM tracks ownership of pages,
   avoiding page table walks by storing the state in the hypervisor's
   vmemmap. This in turn enables the THP support described above.
 
 * New selftest checking the pKVM ownership transition rules
 
 * Fixes for FEAT_MTE_ASYNC being accidentally advertised to guests
   even if the host didn't have it.
 
 * Fixes for the address translation emulation, which happened to be
   rather buggy in some specific contexts.
 
 * Fixes for the PMU emulation in NV contexts, decoupling PMCR_EL0.N
   from the number of counters exposed to a guest and addressing a
   number of issues in the process.
 
 * Add a new selftest for the SVE host state being corrupted by a
   guest.
 
 * Keep HCR_EL2.xMO set at all times for systems running with the
   kernel at EL2, ensuring that the window for interrupts is slightly
   bigger, and avoiding a pretty bad erratum on the AmpereOne HW.
 
 * Add workaround for AmpereOne's erratum AC04_CPU_23, which suffers
   from a pretty bad case of TLB corruption unless accesses to HCR_EL2
   are heavily synchronised.
 
 * Add a per-VM, per-ITS debugfs entry to dump the state of the ITS
   tables in a human-friendly fashion.
 
 * and the usual random cleanups.
 
 LoongArch:
 
 * Don't flush tlb if the host supports hardware page table walks.
 
 * Add KVM selftests support.
 
 RISC-V:
 
 * Add vector registers to get-reg-list selftest
 
 * VCPU reset related improvements
 
 * Remove scounteren initialization from VCPU reset
 
 * Support VCPU reset from userspace using set_mpstate() ioctl
 
 x86:
 
 * Initial support for TDX in KVM.  This finally makes it possible to use the
   TDX module to run confidential guests on Intel processors.  This is quite a
   large series, including support for private page tables (managed by the
   TDX module and mirrored in KVM for efficiency), forwarding some TDVMCALLs
   to userspace, and handling several special VM exits from the TDX module.
 
   This has been in the works for literally years and it's not really possible
   to describe everything here, so I'll defer to the various merge commits
   up to and including commit 7bcf7246c42a ("Merge branch 'kvm-tdx-finish-initial'
   into HEAD").
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "As far as x86 goes this pull request "only" includes TDX host support.

  Quotes are appropriate because (at 6k lines and 100+ commits) it is
  much bigger than the rest, which will come later this week and
  consists mostly of bugfixes and selftests. s390 changes will also come
  in the second batch.

  ARM:

   - Add large stage-2 mapping (THP) support for non-protected guests
     when pKVM is enabled, clawing back some performance.

   - Enable nested virtualisation support on systems that support it,
     though it is disabled by default.

   - Add UBSAN support to the standalone EL2 object used in nVHE/hVHE
     and protected modes.

   - Large rework of the way KVM tracks architecture features and links
     them with the effects of control bits. While this has no functional
     impact, it ensures correctness of emulation (the data is
     automatically extracted from the published JSON files), and helps
     dealing with the evolution of the architecture.

   - Significant changes to the way pKVM tracks ownership of pages,
     avoiding page table walks by storing the state in the hypervisor's
     vmemmap. This in turn enables the THP support described above.

   - New selftest checking the pKVM ownership transition rules

   - Fixes for FEAT_MTE_ASYNC being accidentally advertised to guests
     even if the host didn't have it.

   - Fixes for the address translation emulation, which happened to be
     rather buggy in some specific contexts.

   - Fixes for the PMU emulation in NV contexts, decoupling PMCR_EL0.N
     from the number of counters exposed to a guest and addressing a
     number of issues in the process.

   - Add a new selftest for the SVE host state being corrupted by a
     guest.

   - Keep HCR_EL2.xMO set at all times for systems running with the
     kernel at EL2, ensuring that the window for interrupts is slightly
     bigger, and avoiding a pretty bad erratum on the AmpereOne HW.

   - Add workaround for AmpereOne's erratum AC04_CPU_23, which suffers
     from a pretty bad case of TLB corruption unless accesses to HCR_EL2
     are heavily synchronised.

   - Add a per-VM, per-ITS debugfs entry to dump the state of the ITS
     tables in a human-friendly fashion.

   - and the usual random cleanups.

  LoongArch:

   - Don't flush tlb if the host supports hardware page table walks.

   - Add KVM selftests support.

  RISC-V:

   - Add vector registers to get-reg-list selftest

   - VCPU reset related improvements

   - Remove scounteren initialization from VCPU reset

   - Support VCPU reset from userspace using set_mpstate() ioctl

  x86:

   - Initial support for TDX in KVM.

     This finally makes it possible to use the TDX module to run
     confidential guests on Intel processors. This is quite a large
     series, including support for private page tables (managed by the
     TDX module and mirrored in KVM for efficiency), forwarding some
     TDVMCALLs to userspace, and handling several special VM exits from
     the TDX module.

     This has been in the works for literally years and it's not really
     possible to describe everything here, so I'll defer to the various
     merge commits up to and including commit 7bcf7246c42a ('Merge
     branch 'kvm-tdx-finish-initial' into HEAD')"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (248 commits)
  x86/tdx: mark tdh_vp_enter() as __flatten
  Documentation: virt/kvm: remove unreferenced footnote
  RISC-V: KVM: lock the correct mp_state during reset
  KVM: arm64: Fix documentation for vgic_its_iter_next()
  KVM: arm64: np-guest CMOs with PMD_SIZE fixmap
  KVM: arm64: Stage-2 huge mappings for np-guests
  KVM: arm64: Add a range to pkvm_mappings
  KVM: arm64: Convert pkvm_mappings to interval tree
  KVM: arm64: Add a range to __pkvm_host_test_clear_young_guest()
  KVM: arm64: Add a range to __pkvm_host_wrprotect_guest()
  KVM: arm64: Add a range to __pkvm_host_unshare_guest()
  KVM: arm64: Add a range to __pkvm_host_share_guest()
  KVM: arm64: Introduce for_each_hyp_page
  KVM: arm64: Handle huge mappings for np-guest CMOs
  KVM: arm64: nv: Release faulted-in VNCR page from mmu_lock critical section
  KVM: arm64: nv: Handle TLBI S1E2 for VNCR invalidation with mmu_lock held
  KVM: arm64: nv: Hold mmu_lock when invalidating VNCR SW-TLB before translating
  RISC-V: KVM: add KVM_CAP_RISCV_MP_STATE_RESET
  RISC-V: KVM: Remove scounteren initialization
  KVM: RISC-V: remove unnecessary SBI reset state
  ...
2025-05-29 08:10:01 -07:00
Linus Torvalds
90b83efa67 bpf-next-6.16
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Merge tag 'bpf-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:

 - Fix and improve BTF deduplication of identical BTF types (Alan
   Maguire and Andrii Nakryiko)

 - Support up to 12 arguments in BPF trampoline on arm64 (Xu Kuohai and
   Alexis Lothoré)

 - Support load-acquire and store-release instructions in BPF JIT on
   riscv64 (Andrea Parri)

 - Fix uninitialized values in BPF_{CORE,PROBE}_READ macros (Anton
   Protopopov)

 - Streamline allowed helpers across program types (Feng Yang)

 - Support atomic update for hashtab of BPF maps (Hou Tao)

 - Implement json output for BPF helpers (Ihor Solodrai)

 - Several s390 JIT fixes (Ilya Leoshkevich)

 - Various sockmap fixes (Jiayuan Chen)

 - Support mmap of vmlinux BTF data (Lorenz Bauer)

 - Support BPF rbtree traversal and list peeking (Martin KaFai Lau)

 - Tests for sockmap/sockhash redirection (Michal Luczaj)

 - Introduce kfuncs for memory reads into dynptrs (Mykyta Yatsenko)

 - Add support for dma-buf iterators in BPF (T.J. Mercier)

 - The verifier support for __bpf_trap() (Yonghong Song)

* tag 'bpf-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (135 commits)
  bpf, arm64: Remove unused-but-set function and variable.
  selftests/bpf: Add tests with stack ptr register in conditional jmp
  bpf: Do not include stack ptr register in precision backtracking bookkeeping
  selftests/bpf: enable many-args tests for arm64
  bpf, arm64: Support up to 12 function arguments
  bpf: Check rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem()
  bpf: Avoid __bpf_prog_ret0_warn when jit fails
  bpftool: Add support for custom BTF path in prog load/loadall
  selftests/bpf: Add unit tests with __bpf_trap() kfunc
  bpf: Warn with __bpf_trap() kfunc maybe due to uninitialized variable
  bpf: Remove special_kfunc_set from verifier
  selftests/bpf: Add test for open coded dmabuf_iter
  selftests/bpf: Add test for dmabuf_iter
  bpf: Add open coded dmabuf iterator
  bpf: Add dmabuf iterator
  dma-buf: Rename debugfs symbols
  bpf: Fix error return value in bpf_copy_from_user_dynptr
  libbpf: Use mmap to parse vmlinux BTF from sysfs
  selftests: bpf: Add a test for mmapable vmlinux BTF
  btf: Allow mmap of vmlinux btf
  ...
2025-05-28 15:52:42 -07:00
Linus Torvalds
1b98f357da Networking changes for 6.16.
Core
 ----
 
  - Implement the Device Memory TCP transmit path, allowing zero-copy
    data transmission on top of TCP from e.g. GPU memory to the wire.
 
  - Move all the IPv6 routing tables management outside the RTNL scope,
    under its own lock and RCU. The route control path is now 3x times
    faster.
 
  - Convert queue related netlink ops to instance lock, reducing
    again the scope of the RTNL lock. This improves the control plane
    scalability.
 
  - Refactor the software crc32c implementation, removing unneeded
    abstraction layers and improving significantly the related
    micro-benchmarks.
 
  - Optimize the GRO engine for UDP-tunneled traffic, for a 10%
    performance improvement in related stream tests.
 
  - Cover more per-CPU storage with local nested BH locking; this is a
    prep work to remove the current per-CPU lock in local_bh_disable()
    on PREMPT_RT.
 
  - Introduce and use nlmsg_payload helper, combining buffer bounds
    verification with accessing payload carried by netlink messages.
 
 Netfilter
 ---------
 
  - Rewrite the procfs conntrack table implementation, improving
    considerably the dump performance. A lot of user-space tools
    still use this interface.
 
  - Implement support for wildcard netdevice in netdev basechain
    and flowtables.
 
  - Integrate conntrack information into nft trace infrastructure.
 
  - Export set count and backend name to userspace, for better
    introspection.
 
 BPF
 ---
 
  - BPF qdisc support: BPF-qdisc can be implemented with BPF struct_ops
    programs and can be controlled in similar way to traditional qdiscs
    using the "tc qdisc" command.
 
  - Refactor the UDP socket iterator, addressing long standing issues
    WRT duplicate hits or missed sockets.
 
 Protocols
 ---------
 
  - Improve TCP receive buffer auto-tuning and increase the default
    upper bound for the receive buffer; overall this improves the single
    flow maximum thoughput on 200Gbs link by over 60%.
 
  - Add AFS GSSAPI security class to AF_RXRPC; it provides transport
    security for connections to the AFS fileserver and VL server.
 
  - Improve TCP multipath routing, so that the sources address always
    matches the nexthop device.
 
  - Introduce SO_PASSRIGHTS for AF_UNIX, to allow disabling SCM_RIGHTS,
    and thus preventing DoS caused by passing around problematic FDs.
 
  - Retire DCCP socket. DCCP only receives updates for bugs, and major
    distros disable it by default. Its removal allows for better
    organisation of TCP fields to reduce the number of cache lines hit
    in the fast path.
 
  - Extend TCP drop-reason support to cover PAWS checks.
 
 Driver API
 ----------
 
  - Reorganize PTP ioctl flag support to require an explicit opt-in for
    the drivers, avoiding the problem of drivers not rejecting new
    unsupported flags.
 
  - Converted several device drivers to timestamping APIs.
 
  - Introduce per-PHY ethtool dump helpers, improving the support for
    dump operations targeting PHYs.
 
 Tests and tooling
 -----------------
 
  - Add support for classic netlink in user space C codegen, so that
    ynl-c can now read, create and modify links, routes addresses and
    qdisc layer configuration.
 
  - Add ynl sub-types for binary attributes, allowing ynl-c to output
    known struct instead of raw binary data, clarifying the classic
    netlink output.
 
  - Extend MPTCP selftests to improve the code-coverage.
 
  - Add tests for XDP tail adjustment in AF_XDP.
 
 New hardware / drivers
 ----------------------
 
  - OpenVPN virtual driver: offload OpenVPN data channels processing
    to the kernel-space, increasing the data transfer throughput WRT
    the user-space implementation.
 
  - Renesas glue driver for the gigabit ethernet RZ/V2H(P) SoC.
 
  - Broadcom asp-v3.0 ethernet driver.
 
  - AMD Renoir ethernet device.
 
  - ReakTek MT9888 2.5G ethernet PHY driver.
 
  - Aeonsemi 10G C45 PHYs driver.
 
 Drivers
 -------
 
  - Ethernet high-speed NICs:
    - nVidia/Mellanox (mlx5):
      - refactor the stearing table handling to reduce significantly
        the amount of memory used
      - add support for complex matches in H/W flow steering
      - improve flow streeing error handling
      - convert to netdev instance locking
    - Intel (100G, ice, igb, ixgbe, idpf):
      - ice: add switchdev support for LLDP traffic over VF
      - ixgbe: add firmware manipulation and regions devlink support
      - igb: introduce support for frame transmission premption
      - igb: adds persistent NAPI configuration
      - idpf: introduce RDMA support
      - idpf: add initial PTP support
    - Meta (fbnic):
      - extend hardware stats coverage
      - add devlink dev flash support
    - Broadcom (bnxt):
      - add support for RX-side device memory TCP
    - Wangxun (txgbe):
      - implement support for udp tunnel offload
      - complete PTP and SRIOV support for AML 25G/10G devices
 
  - Ethernet NICs embedded and virtual:
    - Google (gve):
      - add device memory TCP TX support
    - Amazon (ena):
      - support persistent per-NAPI config
    - Airoha:
      - add H/W support for L2 traffic offload
      - add per flow stats for flow offloading
    - RealTek (rtl8211): add support for WoL magic packet
    - Synopsys (stmmac):
      - dwmac-socfpga 1000BaseX support
      - add Loongson-2K3000 support
      - introduce support for hardware-accelerated VLAN stripping
    - Broadcom (bcmgenet):
      - expose more H/W stats
    - Freescale (enetc, dpaa2-eth):
      - enetc: add MAC filter, VLAN filter RSS and loopback support
      - dpaa2-eth: convert to H/W timestamping APIs
    - vxlan: convert FDB table to rhashtable, for better scalabilty
    - veth: apply qdisc backpressure on full ring to reduce TX drops
 
  - Ethernet switches:
    - Microchip (kzZ88x3): add ETS scheduler support
 
  - Ethernet PHYs:
    - RealTek (rtl8211):
      - add support for WoL magic packet
      - add support for PHY LEDs
 
  - CAN:
    - Adds RZ/G3E CANFD support to the rcar_canfd driver.
    - Preparatory work for CAN-XL support.
    - Add self-tests framework with support for CAN physical interfaces.
 
  - WiFi:
    - mac80211:
      - scan improvements with multi-link operation (MLO)
    - Qualcomm (ath12k):
      - enable AHB support for IPQ5332
      - add monitor interface support to QCN9274
      - add multi-link operation support to WCN7850
      - add 802.11d scan offload support to WCN7850
      - monitor mode for WCN7850, better 6 GHz regulatory
    - Qualcomm (ath11k):
      - restore hibernation support
    - MediaTek (mt76):
      - WiFi-7 improvements
      - implement support for mt7990
    - Intel (iwlwifi):
      - enhanced multi-link single-radio (EMLSR) support on 5 GHz links
      - rework device configuration
    - RealTek (rtw88):
      - improve throughput for RTL8814AU
    - RealTek (rtw89):
      - add multi-link operation support
      - STA/P2P concurrency improvements
      - support different SAR configs by antenna
 
  - Bluetooth:
    - introduce HCI Driver protocol
    - btintel_pcie: do not generate coredump for diagnostic events
    - btusb: add HCI Drv commands for configuring altsetting
    - btusb: add RTL8851BE device 0x0bda:0xb850
    - btusb: add new VID/PID 13d3/3584 for MT7922
    - btusb: add new VID/PID 13d3/3630 and 13d3/3613 for MT7925
    - btnxpuart: implement host-wakeup feature
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core:

   - Implement the Device Memory TCP transmit path, allowing zero-copy
     data transmission on top of TCP from e.g. GPU memory to the wire.

   - Move all the IPv6 routing tables management outside the RTNL scope,
     under its own lock and RCU. The route control path is now 3x times
     faster.

   - Convert queue related netlink ops to instance lock, reducing again
     the scope of the RTNL lock. This improves the control plane
     scalability.

   - Refactor the software crc32c implementation, removing unneeded
     abstraction layers and improving significantly the related
     micro-benchmarks.

   - Optimize the GRO engine for UDP-tunneled traffic, for a 10%
     performance improvement in related stream tests.

   - Cover more per-CPU storage with local nested BH locking; this is a
     prep work to remove the current per-CPU lock in local_bh_disable()
     on PREMPT_RT.

   - Introduce and use nlmsg_payload helper, combining buffer bounds
     verification with accessing payload carried by netlink messages.

  Netfilter:

   - Rewrite the procfs conntrack table implementation, improving
     considerably the dump performance. A lot of user-space tools still
     use this interface.

   - Implement support for wildcard netdevice in netdev basechain and
     flowtables.

   - Integrate conntrack information into nft trace infrastructure.

   - Export set count and backend name to userspace, for better
     introspection.

  BPF:

   - BPF qdisc support: BPF-qdisc can be implemented with BPF struct_ops
     programs and can be controlled in similar way to traditional qdiscs
     using the "tc qdisc" command.

   - Refactor the UDP socket iterator, addressing long standing issues
     WRT duplicate hits or missed sockets.

  Protocols:

   - Improve TCP receive buffer auto-tuning and increase the default
     upper bound for the receive buffer; overall this improves the
     single flow maximum thoughput on 200Gbs link by over 60%.

   - Add AFS GSSAPI security class to AF_RXRPC; it provides transport
     security for connections to the AFS fileserver and VL server.

   - Improve TCP multipath routing, so that the sources address always
     matches the nexthop device.

   - Introduce SO_PASSRIGHTS for AF_UNIX, to allow disabling SCM_RIGHTS,
     and thus preventing DoS caused by passing around problematic FDs.

   - Retire DCCP socket. DCCP only receives updates for bugs, and major
     distros disable it by default. Its removal allows for better
     organisation of TCP fields to reduce the number of cache lines hit
     in the fast path.

   - Extend TCP drop-reason support to cover PAWS checks.

  Driver API:

   - Reorganize PTP ioctl flag support to require an explicit opt-in for
     the drivers, avoiding the problem of drivers not rejecting new
     unsupported flags.

   - Converted several device drivers to timestamping APIs.

   - Introduce per-PHY ethtool dump helpers, improving the support for
     dump operations targeting PHYs.

  Tests and tooling:

   - Add support for classic netlink in user space C codegen, so that
     ynl-c can now read, create and modify links, routes addresses and
     qdisc layer configuration.

   - Add ynl sub-types for binary attributes, allowing ynl-c to output
     known struct instead of raw binary data, clarifying the classic
     netlink output.

   - Extend MPTCP selftests to improve the code-coverage.

   - Add tests for XDP tail adjustment in AF_XDP.

  New hardware / drivers:

   - OpenVPN virtual driver: offload OpenVPN data channels processing to
     the kernel-space, increasing the data transfer throughput WRT the
     user-space implementation.

   - Renesas glue driver for the gigabit ethernet RZ/V2H(P) SoC.

   - Broadcom asp-v3.0 ethernet driver.

   - AMD Renoir ethernet device.

   - ReakTek MT9888 2.5G ethernet PHY driver.

   - Aeonsemi 10G C45 PHYs driver.

  Drivers:

   - Ethernet high-speed NICs:
       - nVidia/Mellanox (mlx5):
           - refactor the steering table handling to significantly
             reduce the amount of memory used
           - add support for complex matches in H/W flow steering
           - improve flow streeing error handling
           - convert to netdev instance locking
       - Intel (100G, ice, igb, ixgbe, idpf):
           - ice: add switchdev support for LLDP traffic over VF
           - ixgbe: add firmware manipulation and regions devlink support
           - igb: introduce support for frame transmission premption
           - igb: adds persistent NAPI configuration
           - idpf: introduce RDMA support
           - idpf: add initial PTP support
       - Meta (fbnic):
           - extend hardware stats coverage
           - add devlink dev flash support
       - Broadcom (bnxt):
           - add support for RX-side device memory TCP
       - Wangxun (txgbe):
           - implement support for udp tunnel offload
           - complete PTP and SRIOV support for AML 25G/10G devices

   - Ethernet NICs embedded and virtual:
       - Google (gve):
           - add device memory TCP TX support
       - Amazon (ena):
           - support persistent per-NAPI config
       - Airoha:
           - add H/W support for L2 traffic offload
           - add per flow stats for flow offloading
       - RealTek (rtl8211): add support for WoL magic packet
       - Synopsys (stmmac):
           - dwmac-socfpga 1000BaseX support
           - add Loongson-2K3000 support
           - introduce support for hardware-accelerated VLAN stripping
       - Broadcom (bcmgenet):
           - expose more H/W stats
       - Freescale (enetc, dpaa2-eth):
           - enetc: add MAC filter, VLAN filter RSS and loopback support
           - dpaa2-eth: convert to H/W timestamping APIs
       - vxlan: convert FDB table to rhashtable, for better scalabilty
       - veth: apply qdisc backpressure on full ring to reduce TX drops

   - Ethernet switches:
       - Microchip (kzZ88x3): add ETS scheduler support

   - Ethernet PHYs:
       - RealTek (rtl8211):
           - add support for WoL magic packet
           - add support for PHY LEDs

   - CAN:
       - Adds RZ/G3E CANFD support to the rcar_canfd driver.
       - Preparatory work for CAN-XL support.
       - Add self-tests framework with support for CAN physical interfaces.

   - WiFi:
       - mac80211:
           - scan improvements with multi-link operation (MLO)
       - Qualcomm (ath12k):
           - enable AHB support for IPQ5332
           - add monitor interface support to QCN9274
           - add multi-link operation support to WCN7850
           - add 802.11d scan offload support to WCN7850
           - monitor mode for WCN7850, better 6 GHz regulatory
       - Qualcomm (ath11k):
           - restore hibernation support
       - MediaTek (mt76):
           - WiFi-7 improvements
           - implement support for mt7990
       - Intel (iwlwifi):
           - enhanced multi-link single-radio (EMLSR) support on 5 GHz links
           - rework device configuration
       - RealTek (rtw88):
           - improve throughput for RTL8814AU
       - RealTek (rtw89):
           - add multi-link operation support
           - STA/P2P concurrency improvements
           - support different SAR configs by antenna

   - Bluetooth:
       - introduce HCI Driver protocol
       - btintel_pcie: do not generate coredump for diagnostic events
       - btusb: add HCI Drv commands for configuring altsetting
       - btusb: add RTL8851BE device 0x0bda:0xb850
       - btusb: add new VID/PID 13d3/3584 for MT7922
       - btusb: add new VID/PID 13d3/3630 and 13d3/3613 for MT7925
       - btnxpuart: implement host-wakeup feature"

* tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1611 commits)
  selftests/bpf: Fix bpf selftest build warning
  selftests: netfilter: Fix skip of wildcard interface test
  net: phy: mscc: Stop clearing the the UDPv4 checksum for L2 frames
  net: openvswitch: Fix the dead loop of MPLS parse
  calipso: Don't call calipso functions for AF_INET sk.
  selftests/tc-testing: Add a test for HFSC eltree double add with reentrant enqueue behaviour on netem
  net_sched: hfsc: Address reentrant enqueue adding class to eltree twice
  octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback
  octeontx2-pf: QOS: Perform cache sync on send queue teardown
  net: mana: Add support for Multi Vports on Bare metal
  net: devmem: ncdevmem: remove unused variable
  net: devmem: ksft: upgrade rx test to send 1K data
  net: devmem: ksft: add 5 tuple FS support
  net: devmem: ksft: add exit_wait to make rx test pass
  net: devmem: ksft: add ipv4 support
  net: devmem: preserve sockc_err
  page_pool: fix ugly page_pool formatting
  net: devmem: move list_add to net_devmem_bind_dmabuf.
  selftests: netfilter: nft_queue.sh: include file transfer duration in log message
  net: phy: mscc: Fix memory leak when using one step timestamping
  ...
2025-05-28 15:24:36 -07:00
Linus Torvalds
b08494a8f7 drm for 6.16-rc1
new drivers:
 - bring in the asahi uapi header standalone
 - nova-drm: stub driver
 
 rust dependencies (for nova-core):
 - auxiliary
   - bus abstractions
   - driver registration
   - sample driver
 - devres changes from driver-core
 - revocable changes
 
 core:
 - add Apple fourcc modifiers
 - add virtio capset definitions
 - extend EXPORT_SYNC_FILE for timeline syncobjs
 - convert to devm_platform_ioremap_resource
 - refactor shmem helper page pinning
 - DP powerup/down link helpers
 - remove disgusting turds
 - extended %p4cc in vsprintf.c to support fourcc prints
 - change vsprintf %p4cn to %p4chR, remove %p4cn
 - Add drm_file_err function
 - IN_FORMATS_ASYNC property
 - move sitronix from tiny to their own subdir
 
 rust:
 - add drm core infrastructure rust abstractions
   (device/driver, ioctl, file, gem)
 
 dma-buf:
 - adjust sg handling to not cache map on attach
 - allow setting dma-device for import
 - Add a helper to sort and deduplicate dma_fence arrays
 
 docs:
 - updated drm scheduler docs
 - fbdev todo update
 - fb rendering
 - actual brightness
 
 ttm:
 - fix delayed destroy resv object
 
 bridge:
 - add kunit tests
 - convert tc358775 to atomic
 - convert drivers to devm_drm_bridge_alloc
 - convert rk3066_hdmi to bridge driver
 
 scheduler:
 - add kunit tests
 
 panel:
 - refcount panels to improve lifetime handling
 - Powertip PH128800T004-ZZA01
 - NLT NL13676BC25-03F, Tianma TM070JDHG34-00
 - Himax HX8279/HX8279-D DDIC
 - Visionox G2647FB105
 - Sitronix ST7571
 - ZOTAC rotation quirk
 
 vkms:
 - allow attaching more displays
 
 i915:
 - xe3lpd display updates
 - vrr refactor
 - intel_display struct conversions
 - xe2hpd memory type identification
 - add link rate/count to i915_display_info
 - cleanup VGA plane handling
 - refactor HDCP GSC
 - fix SLPC wait boosting reference counting
 - add 20ms delay to engine reset
 - fix fence release on early probe errors
 
 xe:
 - SRIOV updates
 - BMG PCI ID update
 - support separate firmware for each GT
 - SVM fix, prelim SVM multi-device work
 - export fan speed
 - temp disable d3cold on BMG
 - backup VRAM in PM notifier instead of suspend/freeze
 - update xe_ttm_access_memory to use GPU for non-visible access
 - fix guc_info debugfs for VFs
 - use copy_from_user instead of __copy_from_user
 - append PCIe gen5 limitations to xe_firmware document
 
 amdgpu:
 - DSC cleanup
 - DC Scaling updates
 - Fused I2C-over-AUX updates
 - DMUB updates
 - Use drm_file_err in amdgpu
 - Enforce isolation updates
 - Use new dma_fence helpers
 - USERQ fixes
 - Documentation updates
 - SR-IOV updates
 - RAS updates
 - PSP 12 cleanups
 - GC 9.5 updates
 - SMU 13.x updates
 - VCN / JPEG SR-IOV updates
 
 amdkfd:
 - Update error messages for SDMA
 - Userptr updates
 - XNACK fixes
 
 radeon:
 - CIK doorbell cleanup
 
 nouveau:
 - add support for NVIDIA r570 GSP firmware
 - enable Hopper/Blackwell support
 
 nova-core:
 - fix task list
 - register definition infrastructure
 - move firmware into own rust module
 - register auxiliary device for nova-drm
 
 nova-drm:
 - initial driver skeleton
 
 msm:
 - GPU:
   - ACD (adaptive clock distribution) for X1-85
   - drop fictional address_space_size
   - improve GMU HFI response time out robustness
   - fix crash when throttling during boot
 - DPU:
   - use single CTL path for flushing on DPU 5.x+
   - improve SSPP allocation code for better sharing
   - Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550
   - Added SAR2130P support
   - Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660
 - DP:
   - switch to new audio helpers
   - better LTTPR handling
 - DSI:
   - Added support for SA8775P
   - Added SAR2130P support
 - HDMI:
   - Switched to use new helpers for ACR data
   - Fixed old standing issue of HPD not working in some cases
 
 amdxdna:
 - add dma-buf support
 - allow empty command submits
 
 renesas:
 - add dma-buf support
 - add zpos, alpha, blend support
 
 panthor:
 - fail properly for NO_MMAP bos
 - add SET_LABEL ioctl
 - debugfs BO dumping support
 
 imagination:
 - update DT bindings
 - support TI AM68 GPU
 
 hibmc:
 - improve interrupt handling and HPD support
 
 virtio:
 - add panic handler support
 
 rockchip:
 - add RK3588 support
 - add DP AUX bus panel support
 
 ivpu:
 - add heartbeat based hangcheck
 
 mediatek:
 - prepares support for MT8195/99 HDMIv2/DDCv2
 
 anx7625:
 - improve HPD
 
 tegra:
 - speed up firmware loading
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Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "As part of building up nova-core/nova-drm pieces we've brought in some
  rust abstractions through this tree, aux bus being the main one, with
  devres changes also in the driver-core tree. Along with the drm core
  abstractions and enough nova-core/nova-drm to use them. This is still
  all stub work under construction, to build the nova driver upstream.

  The other big NVIDIA related one is nouveau adds support for
  Hopper/Blackwell GPUs, this required a new GSP firmware update to
  570.144, and a bunch of rework in order to support multiple fw
  interfaces.

  There is also the introduction of an asahi uapi header file as a
  precursor to getting the real driver in later, but to unblock
  userspace mesa packages while the driver is trapped behind rust
  enablement.

  Otherwise it's the usual mixture of stuff all over, amdgpu, i915/xe,
  and msm being the main ones, and some changes to vsprintf.

  new drivers:
   - bring in the asahi uapi header standalone
   - nova-drm: stub driver

  rust dependencies (for nova-core):
   - auxiliary
       - bus abstractions
       - driver registration
       - sample driver
   - devres changes from driver-core
   - revocable changes

  core:
   - add Apple fourcc modifiers
   - add virtio capset definitions
   - extend EXPORT_SYNC_FILE for timeline syncobjs
   - convert to devm_platform_ioremap_resource
   - refactor shmem helper page pinning
   - DP powerup/down link helpers
   - extended %p4cc in vsprintf.c to support fourcc prints
   - change vsprintf %p4cn to %p4chR, remove %p4cn
   - Add drm_file_err function
   - IN_FORMATS_ASYNC property
   - move sitronix from tiny to their own subdir

  rust:
   - add drm core infrastructure rust abstractions
     (device/driver, ioctl, file, gem)

  dma-buf:
   - adjust sg handling to not cache map on attach
   - allow setting dma-device for import
   - Add a helper to sort and deduplicate dma_fence arrays

  docs:
   - updated drm scheduler docs
   - fbdev todo update
   - fb rendering
   - actual brightness

  ttm:
   - fix delayed destroy resv object

  bridge:
   - add kunit tests
   - convert tc358775 to atomic
   - convert drivers to devm_drm_bridge_alloc
   - convert rk3066_hdmi to bridge driver

  scheduler:
   - add kunit tests

  panel:
   - refcount panels to improve lifetime handling
   - Powertip PH128800T004-ZZA01
   - NLT NL13676BC25-03F, Tianma TM070JDHG34-00
   - Himax HX8279/HX8279-D DDIC
   - Visionox G2647FB105
   - Sitronix ST7571
   - ZOTAC rotation quirk

  vkms:
   - allow attaching more displays

  i915:
   - xe3lpd display updates
   - vrr refactor
   - intel_display struct conversions
   - xe2hpd memory type identification
   - add link rate/count to i915_display_info
   - cleanup VGA plane handling
   - refactor HDCP GSC
   - fix SLPC wait boosting reference counting
   - add 20ms delay to engine reset
   - fix fence release on early probe errors

  xe:
   - SRIOV updates
   - BMG PCI ID update
   - support separate firmware for each GT
   - SVM fix, prelim SVM multi-device work
   - export fan speed
   - temp disable d3cold on BMG
   - backup VRAM in PM notifier instead of suspend/freeze
   - update xe_ttm_access_memory to use GPU for non-visible access
   - fix guc_info debugfs for VFs
   - use copy_from_user instead of __copy_from_user
   - append PCIe gen5 limitations to xe_firmware document

  amdgpu:
   - DSC cleanup
   - DC Scaling updates
   - Fused I2C-over-AUX updates
   - DMUB updates
   - Use drm_file_err in amdgpu
   - Enforce isolation updates
   - Use new dma_fence helpers
   - USERQ fixes
   - Documentation updates
   - SR-IOV updates
   - RAS updates
   - PSP 12 cleanups
   - GC 9.5 updates
   - SMU 13.x updates
   - VCN / JPEG SR-IOV updates

  amdkfd:
   - Update error messages for SDMA
   - Userptr updates
   - XNACK fixes

  radeon:
   - CIK doorbell cleanup

  nouveau:
   - add support for NVIDIA r570 GSP firmware
   - enable Hopper/Blackwell support

  nova-core:
   - fix task list
   - register definition infrastructure
   - move firmware into own rust module
   - register auxiliary device for nova-drm

  nova-drm:
   - initial driver skeleton

  msm:
   - GPU:
       - ACD (adaptive clock distribution) for X1-85
       - drop fictional address_space_size
       - improve GMU HFI response time out robustness
       - fix crash when throttling during boot
   - DPU:
       - use single CTL path for flushing on DPU 5.x+
       - improve SSPP allocation code for better sharing
       - Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550
       - Added SAR2130P support
       - Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660
   - DP:
       - switch to new audio helpers
       - better LTTPR handling
   - DSI:
       - Added support for SA8775P
       - Added SAR2130P support
   - HDMI:
       - Switched to use new helpers for ACR data
       - Fixed old standing issue of HPD not working in some cases

  amdxdna:
   - add dma-buf support
   - allow empty command submits

  renesas:
   - add dma-buf support
   - add zpos, alpha, blend support

  panthor:
   - fail properly for NO_MMAP bos
   - add SET_LABEL ioctl
   - debugfs BO dumping support

  imagination:
   - update DT bindings
   - support TI AM68 GPU

  hibmc:
   - improve interrupt handling and HPD support

  virtio:
   - add panic handler support

  rockchip:
   - add RK3588 support
   - add DP AUX bus panel support

  ivpu:
   - add heartbeat based hangcheck

  mediatek:
   - prepares support for MT8195/99 HDMIv2/DDCv2

  anx7625:
   - improve HPD

  tegra:
   - speed up firmware loading

* tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel: (1627 commits)
  drm/nouveau/tegra: Fix error pointer vs NULL return in nvkm_device_tegra_resource_addr()
  drm/xe: Default auto_link_downgrade status to false
  drm/xe/guc: Make creation of SLPC debugfs files conditional
  drm/i915/display: Add check for alloc_ordered_workqueue() and alloc_workqueue()
  drm/i915/dp_mst: Work around Thunderbolt sink disconnect after SINK_COUNT_ESI read
  drm/i915/ptl: Use everywhere the correct DDI port clock select mask
  drm/nouveau/kms: add support for GB20x
  drm/dp: add option to disable zero sized address only transactions.
  drm/nouveau: add support for GB20x
  drm/nouveau/gsp: add hal for fifo.chan.doorbell_handle
  drm/nouveau: add support for GB10x
  drm/nouveau/gf100-: track chan progress with non-WFI semaphore release
  drm/nouveau/nv50-: separate CHANNEL_GPFIFO handling out from CHANNEL_DMA
  drm/nouveau: add helper functions for allocating pinned/cpu-mapped bos
  drm/nouveau: add support for GH100
  drm/nouveau: improve handling of 64-bit BARs
  drm/nouveau/gv100-: switch to volta semaphore methods
  drm/nouveau/gsp: support deeper page tables in COPY_SERVER_RESERVED_PDES
  drm/nouveau/gsp: init client VMMs with NV0080_CTRL_DMA_SET_PAGE_DIRECTORY
  drm/nouveau/gsp: fetch level shift and PDE from BAR2 VMM
  ...
2025-05-28 09:46:39 -07:00
Linus Torvalds
48cfc5791d hardening updates for v6.16-rc1
- Update overflow helpers to ease refactoring of on-stack flex array
   instances (Gustavo A. R. Silva, Kees Cook)
 
 - lkdtm: Use SLAB_NO_MERGE instead of constructors (Harry Yoo)
 
 - Simplify CONFIG_CC_HAS_COUNTED_BY (Jan Hendrik Farr)
 
 - Disable u64 usercopy KUnit test on 32-bit SPARC (Thomas Weißschuh)
 
 - Add missed designated initializers now exposed by fixed randstruct
   (Nathan Chancellor, Kees Cook)
 
 - Document compilers versions for __builtin_dynamic_object_size
 
 - Remove ARM_SSP_PER_TASK GCC plugin
 
 - Fix GCC plugin randstruct, add selftests, and restore COMPILE_TEST
   builds
 
 - Kbuild: induce full rebuilds when dependencies change with GCC plugins,
   the Clang sanitizer .scl file, or the randstruct seed.
 
 - Kbuild: Switch from -Wvla to -Wvla-larger-than=1
 
 - Correct several __nonstring uses for -Wunterminated-string-initialization
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Merge tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:

 - Update overflow helpers to ease refactoring of on-stack flex array
   instances (Gustavo A. R. Silva, Kees Cook)

 - lkdtm: Use SLAB_NO_MERGE instead of constructors (Harry Yoo)

 - Simplify CONFIG_CC_HAS_COUNTED_BY (Jan Hendrik Farr)

 - Disable u64 usercopy KUnit test on 32-bit SPARC (Thomas Weißschuh)

 - Add missed designated initializers now exposed by fixed randstruct
   (Nathan Chancellor, Kees Cook)

 - Document compilers versions for __builtin_dynamic_object_size

 - Remove ARM_SSP_PER_TASK GCC plugin

 - Fix GCC plugin randstruct, add selftests, and restore COMPILE_TEST
   builds

 - Kbuild: induce full rebuilds when dependencies change with GCC
   plugins, the Clang sanitizer .scl file, or the randstruct seed.

 - Kbuild: Switch from -Wvla to -Wvla-larger-than=1

 - Correct several __nonstring uses for -Wunterminated-string-initialization

* tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits)
  Revert "hardening: Disable GCC randstruct for COMPILE_TEST"
  lib/tests: randstruct: Add deep function pointer layout test
  lib/tests: Add randstruct KUnit test
  randstruct: gcc-plugin: Remove bogus void member
  net: qede: Initialize qede_ll_ops with designated initializer
  scsi: qedf: Use designated initializer for struct qed_fcoe_cb_ops
  md/bcache: Mark __nonstring look-up table
  integer-wrap: Force full rebuild when .scl file changes
  randstruct: Force full rebuild when seed changes
  gcc-plugins: Force full rebuild when plugins change
  kbuild: Switch from -Wvla to -Wvla-larger-than=1
  hardening: simplify CONFIG_CC_HAS_COUNTED_BY
  overflow: Fix direct struct member initialization in _DEFINE_FLEX()
  kunit/overflow: Add tests for STACK_FLEX_ARRAY_SIZE() helper
  overflow: Add STACK_FLEX_ARRAY_SIZE() helper
  input/joystick: magellan: Mark __nonstring look-up table const
  watchdog: exar: Shorten identity name to fit correctly
  mod_devicetable: Enlarge the maximum platform_device_id name length
  overflow: Clarify expectations for getting DEFINE_FLEX variable sizes
  compiler_types: Identify compiler versions for __builtin_dynamic_object_size
  ...
2025-05-28 07:47:10 -07:00
Linus Torvalds
bad14b5d2c Remove legacy 'cc-disable-warning' use from the generic build scripts
This just converts the 'cc-disable-warning' uses in the generic makefile
extrawarn script to use the plain 'cc-option' form instead.  Partly to
clean things up, and partly just to have the new form get some proper
test coverage.

I'll leave the various random other uses of 'cc-disable-warning' alone
and let subsystem maintainers decide if they want to convert to the new
unified model.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-05-27 14:40:30 -07:00
Linus Torvalds
550ccb178d Make 'cc-option' work correctly for the -Wno-xyzzy pattern
This is the follow-up to commit a79be02bba5c ("Fix mis-uses of
'cc-option' for warning disablement") where I mentioned that the best
fix would be to just make 'cc-option' a bit smarter, and work for all
compiler options, including the '-Wno-xyzzy' pattern that it used to
accept unknown options for.

It turns out that fixing cc-option is pretty straightforward: just
rewrite any '-Wno-xyzzy' option pattern to use '-Wxyzzy' instead for
testing.

That makes the whole artificial distinction between 'cc-option' and
'cc-disable-warning' go away, and we can happily forget about the odd
build rule that you have to treat compiler options that disable warnings
specially.

The 'cc-disable-warning' helper remains as a backwards compatibility
syntax for now, but is implemented in terms of the new and improved
cc-option.

Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-05-27 14:35:51 -07:00