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From: "tip-bot2 for Josh Poimboeuf" <tip-bot2@linutronix.de>
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To: linux-tip-commits@vger.kernel.org
Subject: [tip: objtool/urgent] context_tracking: Always inline
ct_{nmi,irq}_{enter,exit}()
Cc: Randy Dunlap <rdunlap@infradead.org>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Ingo Molnar <mingo@kernel.org>, Frederic Weisbecker <frederic@kernel.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>, x86@kernel.org,
linux-kernel@vger.kernel.org
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The following commit has been merged into the objtool/urgent branch of tip:
Commit-ID: 9ac50f7311dc8b39e355582f14c1e82da47a8196
Gitweb: https://git.kernel.org/tip/9ac50f7311dc8b39e355582f14c1e82da=
47a8196
Author: Josh Poimboeuf <jpoimboe@kernel.org>
AuthorDate: Mon, 31 Mar 2025 21:26:45 -07:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 01 Apr 2025 09:12:05 +02:00
context_tracking: Always inline ct_{nmi,irq}_{enter,exit}()
Thanks to CONFIG_DEBUG_SECTION_MISMATCH, empty functions can be
generated out of line. These can be called from noinstr code, so make
sure they're always inlined.
Fixes the following warnings:
vmlinux.o: warning: objtool: irqentry_nmi_enter+0xa2: call to ct_nmi_ente=
r() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_exit+0x16: call to ct_nmi_exit(=
) leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_exit+0x78: call to ct_irq_exit() le=
aves .noinstr.text section
Fixes: 6f0e6c1598b1 ("context_tracking: Take IRQ eqs entrypoints over RCU")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/8509bce3f536bcd4ae7af3a2cf6930d48c5e631a.17=
43481539.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/d1eca076-fdde-484a-b33e-70e0d167c36d@infrad=
ead.org
---
include/linux/context_tracking_irq.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/context_tracking_irq.h b/include/linux/context_t=
racking_irq.h
index c50b567..197916e 100644
--- a/include/linux/context_tracking_irq.h
+++ b/include/linux/context_tracking_irq.h
@@ -10,12 +10,12 @@ void ct_irq_exit_irqson(void);
void ct_nmi_enter(void);
void ct_nmi_exit(void);
#else
-static inline void ct_irq_enter(void) { }
-static inline void ct_irq_exit(void) { }
+static __always_inline void ct_irq_enter(void) { }
+static __always_inline void ct_irq_exit(void) { }
static inline void ct_irq_enter_irqson(void) { }
static inline void ct_irq_exit_irqson(void) { }
-static inline void ct_nmi_enter(void) { }
-static inline void ct_nmi_exit(void) { }
+static __always_inline void ct_nmi_enter(void) { }
+static __always_inline void ct_nmi_exit(void) { }
#endif
=20
#endif