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| author | Arnd Bergmann <arnd@arndb.de> | 2026-02-02 12:55:01 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-02-03 00:02:49 +0300 |
| commit | 451c3a0356099483218535aed17fcf94ab5764a3 (patch) | |
| tree | e5133dd78c25aab14e8e023bfe859f2a605c822e /include/linux | |
| parent | b682b70d016f6aee20d91dcbaa319a932008a83a (diff) | |
| download | linux-451c3a0356099483218535aed17fcf94ab5764a3.tar.xz | |
rcu: Mark lockdep_assert_rcu_helper() __always_inline
There are some configurations in which lockdep_assert_rcu_helper() ends up
not being inlined, for some reason. This leads to a link failure because
now the caller tries to pass a nonexistant __ctx_lock_RCU structure:
ld: lib/test_context-analysis.o: in function `test_rcu_assert_variants':
test_context-analysis.c:(.text+0x275c): undefined reference to `RCU'
ld: test_context-analysis.c:(.text+0x276c): undefined reference to `RCU_BH'
ld: test_context-analysis.c:(.text+0x2774): undefined reference to `RCU_SCHED'
I saw this in one out of many 32-bit arm builds using gcc-15.2, but
it probably happens in others as well.
Mark this function as __always_inline to fix the build.
Fixes: fe00f6e84621 ("rcu: Support Clang's context analysis")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://patch.msgid.link/20260202095507.1237440-1-arnd@kernel.org
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/rcupdate.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index d828a4673441..f0aa48bb5d12 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -435,7 +435,7 @@ static inline void rcu_preempt_sleep_check(void) { } // See RCU_LOCKDEP_WARN() for an explanation of the double call to // debug_lockdep_rcu_enabled(). -static inline bool lockdep_assert_rcu_helper(bool c, const struct __ctx_lock_RCU *ctx) +static __always_inline bool lockdep_assert_rcu_helper(bool c, const struct __ctx_lock_RCU *ctx) __assumes_shared_ctx_lock(RCU) __assumes_shared_ctx_lock(ctx) { return debug_lockdep_rcu_enabled() && |