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Commit e0f4c674 authored by K. Y. Srinivasan's avatar K. Y. Srinivasan Committed by Greg Kroah-Hartman
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Staging: hv: vmbus: Get rid of hv_cb_utils[] and other unneeded code 



Now that the transformation of the util driver is complete,
get rid of hv_cb_utils[] and other unneeded code.

Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4e65f6e8

drivers/staging/hv/channel_mgmt.c

+0 −94
Original line number Diff line number Diff line
@@ -158,100 +158,6 @@ void prep_negotiate_resp(struct icmsg_hdr *icmsghdrp, 
}

EXPORT_SYMBOL(prep_negotiate_resp);



/**

 * chn_cb_negotiate() - Default handler for non IDE/SCSI/NETWORK

 * Hyper-V requests

 * @context: Pointer to argument structure.

 *

 * Set up the default handler for non device driver specific requests

 * from Hyper-V. This stub responds to the default negotiate messages

 * that come in for every non IDE/SCSI/Network request.

 * This behavior is normally overwritten in the hv_utils driver. That

 * driver handles requests like graceful shutdown, heartbeats etc.

 *

 * Mainly used by Hyper-V drivers.

 */

void chn_cb_negotiate(void *context)

{

	struct vmbus_channel *channel = context;

	u8 *buf;

	u32 buflen, recvlen;

	u64 requestid;



	struct icmsg_hdr *icmsghdrp;

	struct icmsg_negotiate *negop = NULL;



	buflen = PAGE_SIZE;

	buf = kmalloc(buflen, GFP_ATOMIC);



	vmbus_recvpacket(channel, buf, buflen, &recvlen, &requestid);



	if (recvlen > 0) {

		icmsghdrp = (struct icmsg_hdr *)&buf[

			sizeof(struct vmbuspipe_hdr)];



		prep_negotiate_resp(icmsghdrp, negop, buf);



		icmsghdrp->icflags = ICMSGHDRFLAG_TRANSACTION

			| ICMSGHDRFLAG_RESPONSE;



		vmbus_sendpacket(channel, buf,

				       recvlen, requestid,

				       VM_PKT_DATA_INBAND, 0);

	}



	kfree(buf);

}

EXPORT_SYMBOL(chn_cb_negotiate);



/*

 * Function table used for message responses for non IDE/SCSI/Network type

 * messages. (Such as KVP/Shutdown etc)

 */

struct hyperv_service_callback hv_cb_utils[MAX_MSG_TYPES] = {

	/* 0E0B6031-5213-4934-818B-38D90CED39DB */

	/* Shutdown */

	{

		.msg_type = HV_SHUTDOWN_MSG,

		.data.b = {

			0x31, 0x60, 0x0B, 0X0E, 0x13, 0x52, 0x34, 0x49,

			0x81, 0x8B, 0x38, 0XD9, 0x0C, 0xED, 0x39, 0xDB

		},

		.log_msg = "Shutdown channel functionality initialized"

	},



	/* {9527E630-D0AE-497b-ADCE-E80AB0175CAF} */

	/* TimeSync */

	{

		.msg_type = HV_TIMESYNC_MSG,

		.data.b = {

			0x30, 0xe6, 0x27, 0x95, 0xae, 0xd0, 0x7b, 0x49,

			0xad, 0xce, 0xe8, 0x0a, 0xb0, 0x17, 0x5c, 0xaf

		},

		.log_msg = "Timesync channel functionality initialized"

	},

	/* {57164f39-9115-4e78-ab55-382f3bd5422d} */

	/* Heartbeat */

	{

		.msg_type = HV_HEARTBEAT_MSG,

		.data.b = {

			0x39, 0x4f, 0x16, 0x57, 0x15, 0x91, 0x78, 0x4e,

			0xab, 0x55, 0x38, 0x2f, 0x3b, 0xd5, 0x42, 0x2d

		},

		.log_msg = "Heartbeat channel functionality initialized"

	},

	/* {A9A0F4E7-5A45-4d96-B827-8A841E8C03E6} */

	/* KVP */

	{

		.data.b = {

			0xe7, 0xf4, 0xa0, 0xa9, 0x45, 0x5a, 0x96, 0x4d,

			0xb8, 0x27, 0x8a, 0x84, 0x1e, 0x8c, 0x3,  0xe6

		},

		.log_msg = "KVP channel functionality initialized"

	},

};

EXPORT_SYMBOL(hv_cb_utils);



/*

 * alloc_channel - Allocate and initialize a vmbus channel object

 */

drivers/staging/hv/hyperv.h

+0 −13
Original line number Diff line number Diff line
@@ -581,11 +581,6 @@ struct vmbus_channel { 
	struct work_struct work;



	enum vmbus_channel_state state;

	/*

	 * For util channels, stash the

	 * the service index for easy access.

	 */

	s8 util_index;



	struct vmbus_channel_offer_channel offermsg;

	/*
@@ -960,12 +955,6 @@ struct ictimesync_data { 
	u8 flags;

} __packed;



/* Index for each IC struct in array hv_cb_utils[] */

#define HV_SHUTDOWN_MSG		0

#define HV_TIMESYNC_MSG		1

#define HV_HEARTBEAT_MSG	2

#define HV_KVP_MSG		3



struct hyperv_service_callback {

	u8 msg_type;

	char *log_msg;
@@ -976,7 +965,5 @@ struct hyperv_service_callback { 


extern void prep_negotiate_resp(struct icmsg_hdr *,

				struct icmsg_negotiate *, u8 *);

extern void chn_cb_negotiate(void *);

extern struct hyperv_service_callback hv_cb_utils[];



#endif /* _HYPERV_H */