[PATCH 1/4] static_call: Add stub for ARCH_ADD_TRAMP_KEY if not provided by arch

[Sean Christopherson]

Add a dummy #define for ARCH_ADD_TRAMP_KEY if one is not provided by arch
code so that EXPORT_STATIC_CALL_TRAMP{,_GPL} can be used in arch-neutral
code.

No functional change intended.

Fixes: 73f44fe19d35 ("static_call: Allow module use without exposing static_call_key")
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
 include/linux/static_call.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/static_call.h b/include/linux/static_call.h
index 78a77a4ae0ea..7539c82dd35f 100644
--- a/include/linux/static_call.h
+++ b/include/linux/static_call.h
@@ -210,6 +210,10 @@ extern long __static_call_return0(void);
 
 #define static_call_cond(name)	(void)__static_call(name)
 
+#ifndef ARCH_ADD_TRAMP_KEY
+#define ARCH_ADD_TRAMP_KEY(name)
+#endif
+
 #define EXPORT_STATIC_CALL(name)					\
 	EXPORT_SYMBOL(STATIC_CALL_KEY(name));				\
 	EXPORT_SYMBOL(STATIC_CALL_TRAMP(name))

base-commit: 9d4853b044beefa21c4ee3e18c40653601a64ced
-- 
2.55.0.rc0.799.gd6f94ed593-goog


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