From: Petr Tesarik <ptesarik@suse.com>
Date: Mon, 14 Feb 2022 13:00:13 +0100
Subject: kabi: Hide changes to s390/AP structures
Patch-mainline: Never, kabi workaround
References: jsc#SLE-20809

Kernel commit bd39654a2282c1a51c044575a6bc00d641d5dfd1 adds these new
fields:

- struct ap_card: unsigned int maxmsgsize
  Can be added at end, because struct ap_card is allocated only by
  ap_card_create (which gets the correct new size), it is not embedded
  in any other structure, and its definition is in a driver-private header
  file (so potential out-of-tree users do not know its size).

- struct ap_message: unsigned int bufsize
  Fits into the hole at offset 44, filling it completely.

Signed-off-by: Petr Tesarik <ptesarik@suse.com>

---
 drivers/s390/crypto/ap_bus.h |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -175,8 +175,10 @@ struct ap_card {
 	unsigned int functions;		/* AP device function bitfield. */
 	int queue_depth;		/* AP queue depth.*/
 	int id;				/* AP card number. */
-	unsigned int maxmsgsize;	/* AP msg limit for this card */
 	atomic_t total_request_count;	/* # requests ever for this AP device.*/
+#ifndef __GENKSYMS__
+	unsigned int maxmsgsize;	/* AP msg limit for this card */
+#endif
 };
 
 #define to_ap_card(x) container_of((x), struct ap_card, ap_dev.device)
@@ -210,8 +212,10 @@ struct ap_message {
 	unsigned long long psmid;	/* Message id. */
 	void *message;			/* Pointer to message buffer. */
 	size_t length;			/* actual msg len in msg buffer */
-	unsigned int bufsize;		/* allocated msg buffer size */
 	int rc;				/* Return code for this message */
+#ifndef __GENKSYMS__
+	unsigned int bufsize;		/* allocated msg buffer size */
+#endif
 
 	void *private;			/* ap driver private pointer. */
 	unsigned int special:1;		/* Used for special commands. */