tls: move tls_cipher_size_desc to net/tls/tls.h

It's only used in net/tls/*, no need to bloat include/net/tls.h.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/dd9fad80415e5b3575b41f56b331871038362eab.1692977948.git.sd@queasysnail.netSigned-off-by: Jakub Kicinski <kuba@kernel.org>

include/net/tls.h

@@ -51,16 +51,6 @@
 
 struct tls_rec;
 
-struct tls_cipher_size_desc {
-	unsigned int iv;
-	unsigned int key;
-	unsigned int salt;
-	unsigned int tag;
-	unsigned int rec_seq;
-};
-
-extern const struct tls_cipher_size_desc tls_cipher_size_desc[];
-
 /* Maximum data size carried in a TLS record */
 #define TLS_MAX_PAYLOAD_SIZE		((size_t)1 << 14)
 

net/tls/tls.h

@@ -51,6 +51,16 @@
 #define TLS_DEC_STATS(net, field)				\
 	SNMP_DEC_STATS((net)->mib.tls_statistics, field)
 
+struct tls_cipher_size_desc {
+	unsigned int iv;
+	unsigned int key;
+	unsigned int salt;
+	unsigned int tag;
+	unsigned int rec_seq;
+};
+
+extern const struct tls_cipher_size_desc tls_cipher_size_desc[];
+
 /* TLS records are maintained in 'struct tls_rec'. It stores the memory pages
  * allocated or mapped for each TLS record. After encryption, the records are
  * stores in a linked list.