[GIT PULL] Kbuild updates for 7.2 #2

[GIT PULL] Kbuild updates for 7.2 #2

[Nathan Chancellor]

Hi Linus,

Please pull this second round of Kbuild changes for 7.2. It has all been
in next for at least a few cycles. If there are any problems, please let
me know.

Cheers,
Nathan

The following changes since commit 1a1e62a5a48494cdf33e3bfb82fb8f408da7c4cc:

  kconfig: tests: fix typo in comment (2026-06-09 16:28:46 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux.git tags/kbuild-7.2-2

for you to fetch changes up to 645323a7f4e55bb3abb0cb003b6b9dc715c8dc21:

  kconfig: add optional warnings for changed input values (2026-06-18 11:46:32 -0700)

----------------------------------------------------------------
Second round of Kbuild changes for 7.2

- Link host programs with ld.lld when $(LLVM) is set to match user's
  expectations that LLVM will be used exclusively during the build
  process

- Fix modpost warnings from static variable name promotion that can
  happen more aggressively with the recently merged distributed ThinLTO
  support

- Add an optional warning for user-supplied Kconfig values that changed
  after processing, such as out of range values or options that have
  incorrect / missing dependencies

Signed-off-by: Nathan Chancellor <nathan@kernel.org>

----------------------------------------------------------------
Nathan Chancellor (1):
      kbuild: Use ld.lld for linking host programs when LLVM is set

Pengpeng Hou (1):
      kconfig: add optional warnings for changed input values

Rong Xu (1):
      modpost: Ignore Clang LTO suffixes in symbol matching

 Documentation/kbuild/kconfig.rst                   |   5 +
 Makefile                                           |   3 +
 scripts/kconfig/confdata.c                         | 106 ++++++++++++++++++++-
 scripts/kconfig/tests/conftest.py                  |   8 +-
 scripts/kconfig/tests/warn_changed_input/Kconfig   |  40 ++++++++
 .../kconfig/tests/warn_changed_input/__init__.py   |  33 +++++++
 scripts/kconfig/tests/warn_changed_input/config    |   3 +
 .../tests/warn_changed_input/expected_config       |   6 ++
 .../tests/warn_changed_input/expected_defconfig    |   1 +
 .../tests/warn_changed_input/expected_stderr       |   4 +
 scripts/mod/modpost.c                              |   2 +-
 11 files changed, 204 insertions(+), 7 deletions(-)
 create mode 100644 scripts/kconfig/tests/warn_changed_input/Kconfig
 create mode 100644 scripts/kconfig/tests/warn_changed_input/__init__.py
 create mode 100644 scripts/kconfig/tests/warn_changed_input/config
 create mode 100644 scripts/kconfig/tests/warn_changed_input/expected_config
 create mode 100644 scripts/kconfig/tests/warn_changed_input/expected_defconfig
 create mode 100644 scripts/kconfig/tests/warn_changed_input/expected_stderr