[PATCH 1/6] SUNRPC: Move cache_initialize() declaration to sunrpc-private header

[Chuck Lever <cel@kernel.org>]

From: Chuck Lever <chuck.lever@oracle.com>

cache_initialize() was introduced by commit 8eab945c5616 ("sunrpc:
make the cache cleaner workqueue deferrable", 2010) and placed in
the public include/linux/sunrpc/cache.h from the start, but it
has never been EXPORT_SYMBOL_GPL'd. The only caller, init_sunrpc()
in net/sunrpc/sunrpc_syms.c, is built into the same module that
defines the function, so external modules could not link against
the symbol even if they tried. The public declaration has been a
stale-public hygiene leak ever since.

Relocate the declaration to net/sunrpc/sunrpc.h alongside other
sunrpc-internal helpers and include that header from
net/sunrpc/cache.c so the compiler enforces prototype consistency
at the definition site. The public include/linux/sunrpc/cache.h
now reflects the actual external API surface.

No functional change.

Assisted-by: Claude:claude-opus-4-7[1m]
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 include/linux/sunrpc/cache.h | 1 -
 net/sunrpc/cache.c           | 1 +
 net/sunrpc/sunrpc.h          | 1 +
 3 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 2735c332ddb7..83c88dc82e69 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -237,7 +237,6 @@ extern int cache_check(struct cache_detail *detail,
 extern void cache_flush(void);
 extern void cache_purge(struct cache_detail *detail);
 #define NEVER (0x7FFFFFFF)
-extern void __init cache_initialize(void);
 extern int cache_register_net(struct cache_detail *cd, struct net *net);
 extern void cache_unregister_net(struct cache_detail *cd, struct net *net);
 
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 391037f15292..488a14961b19 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -39,6 +39,7 @@
 #include "netns.h"
 #include "netlink.h"
 #include "fail.h"
+#include "sunrpc.h"
 
 #define	 RPCDBG_FACILITY RPCDBG_CACHE
 
diff --git a/net/sunrpc/sunrpc.h b/net/sunrpc/sunrpc.h
index e3c6e3b63f0b..7fa35ee8f9a4 100644
--- a/net/sunrpc/sunrpc.h
+++ b/net/sunrpc/sunrpc.h
@@ -41,6 +41,7 @@ struct svc_rqst;
 int rpc_clients_notifier_register(void);
 void rpc_clients_notifier_unregister(void);
 void auth_domain_cleanup(void);
+void __init cache_initialize(void);
 void svc_sock_update_bufs(struct svc_serv *serv);
 enum svc_auth_status svc_authenticate(struct svc_rqst *rqstp);
 #endif /* _NET_SUNRPC_SUNRPC_H */

-- 
2.53.0