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| author | Eder Zulian <ezulian@redhat.com> | 2024-11-07 17:32:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 14:01:23 +0100 |
| commit | 00ccce23e159ed50ece76bdfbb2d54f18fccc2b2 (patch) | |
| tree | 86654f6c2d52fad91b03ef6533cddb327c256e84 /scripts/Makefile.vmlinux | |
| parent | 92848c5f8057c963dda3fe9b80ba785d1a4852e5 (diff) | |
| download | linux-00ccce23e159ed50ece76bdfbb2d54f18fccc2b2.tar.gz linux-00ccce23e159ed50ece76bdfbb2d54f18fccc2b2.tar.bz2 linux-00ccce23e159ed50ece76bdfbb2d54f18fccc2b2.zip | |
rust: helpers: Avoid raw_spin_lock initialization for PREEMPT_RT
[ Upstream commit 5c2e7736e20d9b348a44cafbfa639fe2653fbc34 ]
When PREEMPT_RT=y, spin locks are mapped to rt_mutex types, so using
spinlock_check() + __raw_spin_lock_init() to initialize spin locks is
incorrect, and would cause build errors.
Introduce __spin_lock_init() to initialize a spin lock with lockdep
rquired information for PREEMPT_RT builds, and use it in the Rust
helper.
Fixes: d2d6422f8bd1 ("x86: Allow to enable PREEMPT_RT.")
Closes: https://lore.kernel.org/oe-kbuild-all/202409251238.vetlgXE9-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Eder Zulian <ezulian@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Tested-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20241107163223.2092690-2-ezulian@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/Makefile.vmlinux')
0 files changed, 0 insertions, 0 deletions