Merge remote-tracking branch 'torvalds/master' into perf-tools

To pick up changes in other trees that may affect perf, such as libbpf
and in general the header files that perf has copies of, so that

Merge remote-tracking branch 'torvalds/master' into perf-tools

To pick up changes in other trees that may affect perf, such as libbpf
and in general the header files that perf has copies of, so that we can
do the sync with the kernel sources.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not chang

Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail

- Make sure that the host's vector length is at capped by a value
common to all CPUs

- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken

- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly

show more ...

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and t

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and the first
week of release, plus some new quirks and device IDs. There's nothing
major here, it's a bit bigger than it might've been due to there being
no fixes sent during the merge window due to your vacation.

show more ...

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten L

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts and no adjacent changes.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Merge tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

- Support cross-compiling linux-headers Debian package an

Merge tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

- Support cross-compiling linux-headers Debian package and kernel-devel
RPM package

- Add support for the linux-debug Pacman package

- Improve module rebuilding speed by factoring out the common code to
scripts/module-common.c

- Separate device tree build rules into scripts/Makefile.dtbs

- Add a new script to generate modules.builtin.ranges, which is useful
for tracing tools to find symbols in built-in modules

- Refactor Kconfig and misc tools

- Update Kbuild and Kconfig documentation

* tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (51 commits)
kbuild: doc: replace "gcc" in external module description
kbuild: doc: describe the -C option precisely for external module builds
kbuild: doc: remove the description about shipped files
kbuild: doc: drop section numbering, use references in modules.rst
kbuild: doc: throw out the local table of contents in modules.rst
kbuild: doc: remove outdated description of the limitation on -I usage
kbuild: doc: remove description about grepping CONFIG options
kbuild: doc: update the description about Kbuild/Makefile split
kbuild: remove unnecessary export of RUST_LIB_SRC
kbuild: remove append operation on cmd_ld_ko_o
kconfig: cache expression values
kconfig: use hash table to reuse expressions
kconfig: refactor expr_eliminate_dups()
kconfig: add comments to expression transformations
kconfig: change some expr_*() functions to bool
scripts: move hash function from scripts/kconfig/ to scripts/include/
kallsyms: change overflow variable to bool type
kallsyms: squash output_address()
kbuild: add install target for modules.builtin.ranges
scripts: add verifier script for builtin module range data
...

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 6.12 merge window.

kconfig: cache expression values

Cache expression values to avoid recalculating them repeatedly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Merge branch 'ib/6.11-rc6-matrix-keypad-spitz' into next

Bring in changes removing support for platform data from matrix-keypad
driver.

kbuild: split x*alloc() functions in kconfig to scripts/include/xalloc.h

These functions will be useful for other host programs.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Merge tag 'v6.10' into next

Sync up with mainline to bring in device_for_each_child_node_scoped()
and other newer APIs.

Merge tag 'v6.11-rc1' into clk-meson-next

Linux 6.11-rc1

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be a

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be able to be mapped at the address specified by the "reserve_mem" command
line parameter.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

show more ...

Merge tag 'v6.11-rc1' into for-6.12

Linux 6.11-rc1

Merge drm/drm-next into drm-xe-next

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter

Merge drm/drm-next into drm-xe-next

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter and allows further pending refactors.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

show more ...

Merge drm/drm-next into drm-misc-next

Get drm-misc-next to the state of v6.11-rc2.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-intel-next

Sync with v6.11-rc1 in general, and specifically get the new
BACKLIGHT_POWER_ constants for power states.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-misc-next

Backmerging to get a late RC of v6.10 before moving into v6.11.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge branch 'linus' into x86/mm

Bring x86 and selftests up to date

Merge drm/drm-fixes into drm-misc-fixes

Let's start the new drm-misc-fixes cycle by bringing in 6.11-rc1.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge tag 'v6.10-rc4' into driver-core-next

We need the driver core and sysfs fixes in here to build on top of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'kbuild-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

- Remove tristate choice support from Kconfig

- Stop us

Merge tag 'kbuild-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

- Remove tristate choice support from Kconfig

- Stop using the PROVIDE() directive in the linker script

- Reduce the number of links for the combination of CONFIG_KALLSYMS and
CONFIG_DEBUG_INFO_BTF

- Enable the warning for symbol reference to .exit.* sections by
default

- Fix warnings in RPM package builds

- Improve scripts/make_fit.py to generate a FIT image with separate
base DTB and overlays

- Improve choice value calculation in Kconfig

- Fix conditional prompt behavior in choice in Kconfig

- Remove support for the uncommon EMAIL environment variable in Debian
package builds

- Remove support for the uncommon "name <email>" form for the DEBEMAIL
environment variable

- Raise the minimum supported GNU Make version to 4.0

- Remove stale code for the absolute kallsyms

- Move header files commonly used for host programs to scripts/include/

- Introduce the pacman-pkg target to generate a pacman package used in
Arch Linux

- Clean up Kconfig

* tag 'kbuild-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (65 commits)
kbuild: doc: gcc to CC change
kallsyms: change sym_entry::percpu_absolute to bool type
kallsyms: unify seq and start_pos fields of struct sym_entry
kallsyms: add more original symbol type/name in comment lines
kallsyms: use \t instead of a tab in printf()
kallsyms: avoid repeated calculation of array size for markers
kbuild: add script and target to generate pacman package
modpost: use generic macros for hash table implementation
kbuild: move some helper headers from scripts/kconfig/ to scripts/include/
Makefile: add comment to discourage tools/* addition for kernel builds
kbuild: clean up scripts/remove-stale-files
kconfig: recursive checks drop file/lineno
kbuild: rpm-pkg: introduce a simple changelog section for kernel.spec
kallsyms: get rid of code for absolute kallsyms
kbuild: Create INSTALL_PATH directory if it does not exist
kbuild: Abort make on install failures
kconfig: remove 'e1' and 'e2' macros from expression deduplication
kconfig: remove SYMBOL_CHOICEVAL flag
kconfig: add const qualifiers to several function arguments
kconfig: call expr_eliminate_yn() at least once in expr_eliminate_dups()
...

show more ...

kconfig: change sym_choice_default() to take the choice menu

Change the argument of sym_choice_default() to ease further cleanups.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

kconfig: remove conf_unsaved in conf_read_simple()

This variable is unnecessary. Call conf_set_changed(true) directly.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

kconfig: refactor choice value calculation

Handling choices has always been in a PITA in Kconfig.

For example, fixes and reverts were repeated for randconfig with
KCONFIG_ALLCONFIG:

- 422c809f03f

kconfig: refactor choice value calculation

Handling choices has always been in a PITA in Kconfig.

For example, fixes and reverts were repeated for randconfig with
KCONFIG_ALLCONFIG:

- 422c809f03f0 ("kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG")
- 23a5dfdad22a ("Revert "kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG"")
- 8357b48549e1 ("kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG")
- 490f16171119 ("Revert "kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG"")

As these commits pointed out, randconfig does not randomize choices when
KCONFIG_ALLCONFIG is used. This issue still remains.

[Test Case]

choice
prompt "choose"

config A
bool "A"

config B
bool "B"

endchoice

$ echo > all.config
$ make KCONFIG_ALLCONFIG=1 randconfig

The output is always as follows:

CONFIG_A=y
# CONFIG_B is not set

Not only randconfig, but other all*config variants are also broken with
KCONFIG_ALLCONFIG.

With the same Kconfig,

$ echo '# CONFIG_A is not set' > all.config
$ make KCONFIG_ALLCONFIG=1 allyesconfig

You will get this:

CONFIG_A=y
# CONFIG_B is not set

This is incorrect because it does not respect all.config.

The correct output should be:

# CONFIG_A is not set
CONFIG_B=y

To handle user inputs more accurately, this commit refactors the code
based on the following principles:

- When a user value is given, Kconfig must set it immediately.
Do not defer it by setting SYMBOL_NEED_SET_CHOICE_VALUES.

- The SYMBOL_DEF_USER flag must not be cleared, unless a new config
file is loaded. Kconfig must not forget user inputs.

In addition, user values for choices must be managed with priority.
If user inputs conflict within a choice block, the newest value wins.
The values given by randconfig have lower priority than explicit user
inputs.

This commit implements it by using a linked list. Every time a choice
block gets a new input, it is moved to the top of the list.

Let me explain how it works.

Let's say, we have a choice block that consists of five symbols:
A, B, C, D, and E.

Initially, the linked list looks like this:

A(=?) --> B(=?) --> C(=?) --> D(=?) --> E(=?)

Suppose randconfig is executed with the following KCONFIG_ALLCONFIG:

CONFIG_C=y
# CONFIG_A is not set
CONFIG_D=y

First, CONFIG_C=y is read. C is set to 'y' and moved to the top.

C(=y) --> A(=?) --> B(=?) --> D(=?) --> E(=?)

Next, '# CONFIG_A is not set' is read. A is set to 'n' and moved to
the top.

A(=n) --> C(=y) --> B(=?) --> D(=?) --> E(=?)

Then, 'CONFIG_D=y' is read. D is set to 'y' and moved to the top.

D(=y) --> A(=n) --> C(=y) --> B(=?) --> E(=?)

Lastly, randconfig shuffles the order of the remaining symbols,
resulting in:

D(=y) --> A(=n) --> C(=y) --> B(=y) --> E(=y)
or
D(=y) --> A(=n) --> C(=y) --> E(=y) --> B(=y)

When calculating the output, the linked list is traversed and the first
visible symbol with 'y' is taken. In this case, it is D if visible.

If D is hidden by 'depends on', the next node, A, is examined. Since
it is already specified as 'n', it is skipped. Next, C is checked, and
selected if it is visible.

If C is also invisible, either B or E is chosen as a result of the
randomization.

If B and E are also invisible, the linked list is traversed in the
reverse order, and the least prioritized 'n' symbol is chosen. It is
A in this case.

Now, Kconfig remembers all user values. This is a big difference from
the previous implementation, where Kconfig would forget CONFIG_C=y when
CONFIG_D=y appeared in the same input file.

The new appaorch respects user-specified values as much as possible.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

show more ...