Commit 96d042a6 authored by Frank Blaschka's avatar Frank Blaschka Committed by David S. Miller
Browse files

iucv: introduce loadable iucv interface 



This patch adds a symbol to dynamically load iucv functions.

Signed-off-by: default avatarFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 99558ea9

include/net/iucv/iucv.h

+35 −1
Original line number Diff line number Diff line
@@ -120,7 +120,7 @@ struct iucv_message { 
	u32 reply_size;

	u8  rmmsg[8];

	u8  flags;

};

} __packed;



/*

 * struct iucv_handler
@@ -459,3 +459,37 @@ int __iucv_message_send(struct iucv_path *path, struct iucv_message *msg, 
int iucv_message_send2way(struct iucv_path *path, struct iucv_message *msg,

			  u8 flags, u32 srccls, void *buffer, size_t size,

			  void *answer, size_t asize, size_t *residual);



struct iucv_interface {

	int (*message_receive)(struct iucv_path *path, struct iucv_message *msg,

		u8 flags, void *buffer, size_t size, size_t *residual);

	int (*__message_receive)(struct iucv_path *path,

		struct iucv_message *msg, u8 flags, void *buffer, size_t size,

		size_t *residual);

	int (*message_reply)(struct iucv_path *path, struct iucv_message *msg,

		u8 flags, void *reply, size_t size);

	int (*message_reject)(struct iucv_path *path, struct iucv_message *msg);

	int (*message_send)(struct iucv_path *path, struct iucv_message *msg,

		u8 flags, u32 srccls, void *buffer, size_t size);

	int (*__message_send)(struct iucv_path *path, struct iucv_message *msg,

		u8 flags, u32 srccls, void *buffer, size_t size);

	int (*message_send2way)(struct iucv_path *path,

		struct iucv_message *msg, u8 flags, u32 srccls, void *buffer,

		size_t size, void *answer, size_t asize, size_t *residual);

	int (*message_purge)(struct iucv_path *path, struct iucv_message *msg,

		u32 srccls);

	int (*path_accept)(struct iucv_path *path, struct iucv_handler *handler,

		u8 userdata[16], void *private);

	int (*path_connect)(struct iucv_path *path,

		struct iucv_handler *handler,

		u8 userid[8], u8 system[8], u8 userdata[16], void *private);

	int (*path_quiesce)(struct iucv_path *path, u8 userdata[16]);

	int (*path_resume)(struct iucv_path *path, u8 userdata[16]);

	int (*path_sever)(struct iucv_path *path, u8 userdata[16]);

	int (*iucv_register)(struct iucv_handler *handler, int smp);

	void (*iucv_unregister)(struct iucv_handler *handler, int smp);

	struct bus_type *bus;

	struct device *root;

};



extern struct iucv_interface iucv_if;

net/iucv/iucv.c

+23 −0
Original line number Diff line number Diff line
@@ -1974,6 +1974,27 @@ static int iucv_pm_restore(struct device *dev) 
	return rc;

}



struct iucv_interface iucv_if = {

	.message_receive = iucv_message_receive,

	.__message_receive = __iucv_message_receive,

	.message_reply = iucv_message_reply,

	.message_reject = iucv_message_reject,

	.message_send = iucv_message_send,

	.__message_send = __iucv_message_send,

	.message_send2way = iucv_message_send2way,

	.message_purge = iucv_message_purge,

	.path_accept = iucv_path_accept,

	.path_connect = iucv_path_connect,

	.path_quiesce = iucv_path_quiesce,

	.path_resume = iucv_path_resume,

	.path_sever = iucv_path_sever,

	.iucv_register = iucv_register,

	.iucv_unregister = iucv_unregister,

	.bus = NULL,

	.root = NULL,

};

EXPORT_SYMBOL(iucv_if);



/**

 * iucv_init

 *
@@ -2038,6 +2059,8 @@ static int __init iucv_init(void) 
	rc = bus_register(&iucv_bus);

	if (rc)

		goto out_reboot;

	iucv_if.root = iucv_root;

	iucv_if.bus = &iucv_bus;

	return 0;



out_reboot: