linux-kernel - [tip: objtool/urgent] context_tracking: Always inline empty stubs

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Date:   Mon, 30 May 2022 10:38:47 -0000
From:   "tip-bot2 for Peter Zijlstra" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Mark Rutland <mark.rutland@....com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: objtool/urgent] context_tracking: Always inline empty stubs

The following commit has been merged into the objtool/urgent branch of tip:

Commit-ID:     620f8d3bd3d5e82dff8cc591c831827d4beeae2e
Gitweb:        https://git.kernel.org/tip/620f8d3bd3d5e82dff8cc591c831827d4beeae2e
Author:        Peter Zijlstra <peterz@...radead.org>
AuthorDate:    Sat, 07 May 2022 13:35:37 +02:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Fri, 27 May 2022 12:34:44 +02:00

context_tracking: Always inline empty stubs

Because GCC is seriously challenged..

vmlinux.o: warning: objtool: enter_from_user_mode+0x85: call to context_tracking_enabled() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x8f: call to context_tracking_enabled() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x85: call to context_tracking_enabled() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x85: call to context_tracking_enabled() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Acked-by: Mark Rutland <mark.rutland@....com>
Link: https://lkml.kernel.org/r/20220526105958.134113388@infradead.org
---
 include/linux/context_tracking_state.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/context_tracking_state.h b/include/linux/context_tracking_state.h
index 65a60d3..ae1e63e 100644
--- a/include/linux/context_tracking_state.h
+++ b/include/linux/context_tracking_state.h
@@ -46,10 +46,10 @@ static __always_inline bool context_tracking_in_user(void)
 	return __this_cpu_read(context_tracking.state) == CONTEXT_USER;
 }
 #else
-static inline bool context_tracking_in_user(void) { return false; }
-static inline bool context_tracking_enabled(void) { return false; }
-static inline bool context_tracking_enabled_cpu(int cpu) { return false; }
-static inline bool context_tracking_enabled_this_cpu(void) { return false; }
+static __always_inline bool context_tracking_in_user(void) { return false; }
+static __always_inline bool context_tracking_enabled(void) { return false; }
+static __always_inline bool context_tracking_enabled_cpu(int cpu) { return false; }
+static __always_inline bool context_tracking_enabled_this_cpu(void) { return false; }
 #endif /* CONFIG_CONTEXT_TRACKING */
 
 #endif