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synced 2026-11-01 06:46:35 +01:00
Josh Poimboeuf
09f37f2d7b
sched_smt_active() can be called from noinstr code, so it should always
be inlined. The CONFIG_SCHED_SMT version already has __always_inline.
Do the same for its !CONFIG_SCHED_SMT counterpart.
Fixes the following warning:
vmlinux.o: error: objtool: intel_idle_ibrs+0x13: call to sched_smt_active() leaves .noinstr.text section
Fixes: 321a874a7e ("sched/smt: Expose sched_smt_present static key")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Linus Torvalds <[email protected]>
Link: https://lore.kernel.org/r/1d03907b0a247cf7fb5c1d518de378864f603060.1743481539.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/r/[email protected]/
21 lines
449 B
C
21 lines
449 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_SCHED_SMT_H
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#define _LINUX_SCHED_SMT_H
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#include <linux/static_key.h>
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#ifdef CONFIG_SCHED_SMT
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extern struct static_key_false sched_smt_present;
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static __always_inline bool sched_smt_active(void)
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{
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return static_branch_likely(&sched_smt_present);
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}
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#else
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static __always_inline bool sched_smt_active(void) { return false; }
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#endif
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void arch_smt_update(void);
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#endif /* _LINUX_SCHED_SMT_H */
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