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context_tracking: Fix KCSAN noinstr violation
With KCSAN enabled, even empty inline stubs can be out-of-lined. Force the context_tracking_guest_exit() stub inline. Fixes the following warnings: vmlinux.o: warning: objtool: vmx_vcpu_enter_exit+0x1be: call to context_tracking_guest_exit() leaves .noinstr.text section vmlinux.o: warning: objtool: svm_vcpu_enter_exit+0x85: call to context_tracking_guest_exit() leaves .noinstr.text section Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/dc93f45abdec90c171108b4b590b7fff5790963c.1681320026.git.jpoimboe@kernel.org
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@ -97,7 +97,7 @@ static inline int exception_enter(void) { return 0; }
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static inline void exception_exit(enum ctx_state prev_ctx) { }
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static inline int ct_state(void) { return -1; }
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static __always_inline bool context_tracking_guest_enter(void) { return false; }
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static inline void context_tracking_guest_exit(void) { }
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static __always_inline void context_tracking_guest_exit(void) { }
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#define CT_WARN_ON(cond) do { } while (0)
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#endif /* !CONFIG_CONTEXT_TRACKING_USER */
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