linux-stable.git/Makefile, branch v7.2.6

Linux 7.2.6

2026-09-14T11:41:11+00:00

Link: https://lore.kernel.org/r/20260912065648.999753832@linuxfoundation.org
Tested-by: Brett A C Sheffield 
Tested-by: Salvatore Bonaccorso 
Tested-by: Ronald Warsow 
Tested-by: Takeshi Ogasawara 
Tested-by: Peter Schneider 
Tested-by: Benjamin Boortz 
Tested-by: Markus Reichelt 
Tested-by: Barry K. Nathan 
Tested-by: Ron Economos 
Tested-by: Miguel Ojeda 
Signed-off-by: Greg Kroah-Hartman

kbuild: fix modules.builtin(.modinfo) targets in the top-level Makefile

2026-09-14T11:40:21+00:00

[ Upstream commit 69ef27076d19297c0bf3bd22171fab8d87464a09 ]

Commit 7a342e6c7735 ("kbuild: move modules.builtin(.modinfo) rules to
Makefile.vmlinux_o") moved the modules.builtin(.modinfo) rules from
link-vmlinux.sh to Makefile.vmlinux_o, and added the corresponding
targets to the top-level Makefile.

Commit 39cfd5b12160 ("kbuild: extract modules.builtin.modinfo from
vmlinux.unstripped") later moved these rules from Makefile.vmlinux_o to
Makefile.vmlinux, but left the corresponding targets in the top-level
Makefile unchanged.

These modules.builtin(.modinfo) targets in the top-level Makefile should
be moved alongside the vmlinux target, since they are now generated by
Makefile.vmlinux.

However, simply removing these trivial targets might be a better choice,
as it makes the Makefile cleaner and avoids the need to keep them in sync
across multiple files, reducing the chance of future mistakes.

Fixes: 39cfd5b12160 ("kbuild: extract modules.builtin.modinfo from vmlinux.unstripped")
Signed-off-by: Yuntao Wang 
Reviewed-by: Nathan Chancellor 
Link: https://patch.msgid.link/20260729071737.818007-1-yuntao.wang@linux.dev
Signed-off-by: Nicolas Schier 
Signed-off-by: Sasha Levin

kbuild: unset sub_make_done before calling kselftest build system

2026-09-14T11:39:17+00:00

[ Upstream commit e77f165d26f72c280654cff248f5106cb9a53951 ]

The kselftest build system may recourse back into kbuild when building
test modules. In that case kbuild needs to parse the new flags passed
from the command line, instead of using the ones inherited from the
kbuild invocation.

Force that command line reevaluation.

The same was done for scripts/install.sh in commit 14ccc638b02f9ec
("kbuild: cancel sub_make_done for the install target to fix DKMS")

Reported-by: Zelin Deng 
Closes: https://lore.kernel.org/all/20260525083721.27857-1-zelin.deng@linux.alibaba.com/
Fixes: c9bb03ac2c66 ("kbuild: reduce output spam when building out of tree")
Signed-off-by: Thomas Weißschuh 
Acked-by: Miroslav Benes 
Acked-by: Petr Mladek 
Tested-by: Zelin Deng 
Reviewed-by: Nicolas Schier 
Link: https://patch.msgid.link/20260703-makefile-unset-submake-done-v1-1-6899248f3d6a@linutronix.de
Signed-off-by: Petr Mladek 
Signed-off-by: Sasha Levin

Linux 7.2.5

2026-09-11T09:51:26+00:00

Link: https://lore.kernel.org/r/20260909134230.441546314@linuxfoundation.org
Tested-by: Ronald Warsow 
Tested-by: Brett A C Sheffield 
Tested-by: Florian Fainelli 
Tested-by: Shuah Khan 
Tested-by: Miguel Ojeda 
Tested-by: Takeshi Ogasawara 
Tested-by: Salvatore Bonaccorso 
Tested-by: Dileep Malepu 
Tested-by: Wentao Guan 
Tested-by: Justin M. Forbes 
Tested-by: Ron Economos 
Tested-by: Barry K. Nathan 
Tested-by: Benjamin Boortz 
Tested-by: Peter Schneider 
Signed-off-by: Greg Kroah-Hartman

Linux 7.2.4

2026-09-07T15:37:28+00:00

Link: https://lore.kernel.org/r/20260904045803.810145556@linuxfoundation.org
Tested-by: Takeshi Ogasawara 
Tested-by: Ronald Warsow 
Tested-by: Brett A C Sheffield 
Tested-by: Markus Reichelt 
Tested-by: Shuah Khan 
Tested-by: Salvatore Bonaccorso 
Tested-by: Miguel Ojeda 
Tested-by: Barry K. Nathan 
Tested-by: Peter Schneider 
Tested-by: Ron Economos 
Tested-by: Benjamin Boortz 
Tested-by: Jeffrin Jose T 
Signed-off-by: Greg Kroah-Hartman

kbuild: rust: preserve unreachable traps with inline helpers

2026-09-07T15:36:32+00:00

commit 0bff7711c19ba05ff3b686554c5a2d503c3e9797 upstream.

When `CONFIG_RUST_INLINE_HELPERS` is enabled, it is possible to hit
`objtool` warnings like:

    vmlinux.o: warning: objtool: _R..._4cmdq12CommandToGsp4init()
    falls through to next function _R..._4core5array4iter8IntoIterRShKj3_EEEBa_()

`rustc` normally emits traps for unreachable paths. However, under
`CONFIG_RUST_INLINE_HELPERS=y`, `rustc` emits LLVM bitcode and Clang
performs final code generation after the helper bitcode is linked,
but Clang does not trap unreachable IR by default.

In turn, this means `objtool` follows compiler-generated impossible Rust
`enum` paths through alignment padding into the next function, resulting
in fallthrough warnings.

Thus pass the LLVM `trap-unreachable` option to the final Clang invocation
and suppress traps immediately after `noreturn` calls, which `objtool`
already recognizes as dead ends. The combination of both flags makes it
match `rustc`'s behavior.

Rust 1.85.0 (the minimum supported one) supports LLVM >= 18, and both
flags are available in LLVM 18.

Assisted-by: LLM
Cc: Gary Guo 
Cc: Boqun Feng 
Cc: Alice Ryhl 
Cc: Matthew Maurer 
Cc: Josh Poimboeuf 
Cc: Peter Zijlstra 
Cc: stable@vger.kernel.org
Fixes: 3a2486cc1da5 ("kbuild: rust: provide an option to inline C helpers into Rust")
Acked-by: Gary Guo 
Link: https://patch.msgid.link/20260816133233.197500-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda 
Signed-off-by: Greg Kroah-Hartman

rust: cfi: disable function merging if CFI is enabled

2026-09-07T15:36:32+00:00

commit 29b03d1de967a177176d12811d970cac7882afcf upstream.

In Rust doc tests, there is a dummy `__module_firmware_test_init` function
generated by the example in `module_firmware!`'s documentation, which
just returns zero. Many other documentation examples generate functions
that produce zero. LKP test robot reports [1] a `Flags::zeroed` instance;
my local reproduction has a `Bounded::new::<0>`.

LLVM's MergeFunctionsPass incorrectly merges functions with different
KCFI types, causing `__module_firmware_test_init` to be merged into
one of the zero-returning functions. As module init is invoked via an
indirect function call, KCFI is checked and this produces a KCFI failure.

I've reported this bug to upstream LLVM [2]; in the meantime, disable
function merging if CFI is enabled. No separate treatment is needed for
CONFIG_RUST_INLINE_HELPERS, as Clang does not enable function merging
by default.

[ LLVM already has a pending PR:

    https://github.com/llvm/llvm-project/pull/217665

  which solves the issue. In addition, I asked upstream Rust if the
  unstable `-Zmerge-functions=disabled` flag will remain around:

    https://rust-lang.zulipchat.com/#narrow/channel/425075-rust-for-linux/topic/.60-Zmerge-functions.3Ddisabled.60/

  and it does indeed look like that will be the case. - Miguel ]

Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-lkp/202608201017.100a4511-lkp@intel.com [1]
Link: https://github.com/llvm/llvm-project/issues/217629 [2]
Signed-off-by: Gary Guo 
Cc: stable@vger.kernel.org
Fixes: ca627e636551 ("rust: cfi: add support for CFI_CLANG with Rust")
Reviewed-by: Sami Tolvanen 
Link: https://patch.msgid.link/20260820135733.37121-1-gary@kernel.org
[ Fixed typos as discussed. Reworded slightly for other typos. - Miguel ]
Signed-off-by: Miguel Ojeda 
Signed-off-by: Greg Kroah-Hartman

Linux 7.2.3

2026-09-02T12:33:21+00:00

Link: https://lore.kernel.org/r/20260831133359.055927882@linuxfoundation.org
Tested-by: Ronald Warsow 
Tested-by: Brett A C Sheffield 
Tested-by: Florian Fainelli 
Tested-by: Salvatore Bonaccorso 
Tested-by: Peter Schneider 
Tested-by: Takeshi Ogasawara 
Tested-by: Shuah Khan 
Tested-by: Miguel Ojeda 
Tested-by: Ron Economos 
Tested-by: Barry K. Nathan 
Signed-off-by: Greg Kroah-Hartman

Linux 7.2.2

2026-08-28T06:25:22+00:00

Signed-off-by: Greg Kroah-Hartman

Linux 7.2.1

2026-08-27T12:35:27+00:00

Link: https://lore.kernel.org/r/20260825132541.560541185@linuxfoundation.org
Tested-by: Ronald Warsow 
Tested-by: Justin M. Forbes 
Tested-by: Florian Fainelli 
Tested-by: Shuah Khan 
Tested-by: Ron Economos 
Tested-by: Barry K. Nathan 
Tested-by: Salvatore Bonaccorso 
Tested-by: Brett A C Sheffield 
Tested-by: Miguel Ojeda 
Tested-by: Krzysztof Wilczyński 
Tested-by: Peter Schneider 
Tested-by: Benjamin Boortz 
Tested-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman