5.4-stable review patch. If anyone has any objections, please let me know.
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From: Josh Poimboeuf jpoimboe@kernel.org
[ Upstream commit 09f37f2d7b21ff35b8b533f9ab8cfad2fe8f72f6 ]
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: 321a874a7ef8 ("sched/smt: Expose sched_smt_present static key") Reported-by: kernel test robot lkp@intel.com Signed-off-by: Josh Poimboeuf jpoimboe@kernel.org Signed-off-by: Ingo Molnar mingo@kernel.org Cc: Linus Torvalds torvalds@linux-foundation.org Link: https://lore.kernel.org/r/1d03907b0a247cf7fb5c1d518de378864f603060.174348153... Closes: https://lore.kernel.org/r/202503311434.lyw2Tveh-lkp@intel.com/ Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/sched/smt.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/sched/smt.h b/include/linux/sched/smt.h index 59d3736c454cf..737b50f40137b 100644 --- a/include/linux/sched/smt.h +++ b/include/linux/sched/smt.h @@ -12,7 +12,7 @@ static __always_inline bool sched_smt_active(void) return static_branch_likely(&sched_smt_present); } #else -static inline bool sched_smt_active(void) { return false; } +static __always_inline bool sched_smt_active(void) { return false; } #endif
void arch_smt_update(void);