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context_tracking: Always inline empty stubs 

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2169516

commit 620f8d3bd3d5e82dff8cc591c831827d4beeae2e
Author: Peter Zijlstra <peterz@infradead.org>
Date:   Sat, 7 May 2022 13:35:37 +0200

    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@infradead.org>
    Acked-by: Mark Rutland <mark.rutland@arm.com>
    Link: https://lkml.kernel.org/r/20220526105958.134113388@infradead.org

Signed-off-by: Waiman Long <longman@redhat.com>
This commit is contained in:
Waiman Long 2023-02-26 22:21:13 -05:00
parent 192a2ddc6f
commit 0677ddaa0f
1 changed files with 4 additions and 4 deletions
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8
include/linux/context_tracking_state.h
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@ -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