Commit 9a603b8e authored by stephen hemminger's avatar stephen hemminger Committed by David S. Miller
Browse files

vmbus: remove unused vmbus_sendpacket_multipagebuffer 



This function is not used anywhere in current code.

Signed-off-by: default avatarStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 774c4673

drivers/hv/channel.c

+0 −56
Original line number Diff line number Diff line
@@ -814,62 +814,6 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel, 
}

EXPORT_SYMBOL_GPL(vmbus_sendpacket_mpb_desc);



/*

 * vmbus_sendpacket_multipagebuffer - Send a multi-page buffer packet

 * using a GPADL Direct packet type.

 */

int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,

				struct hv_multipage_buffer *multi_pagebuffer,

				void *buffer, u32 bufferlen, u64 requestid)

{

	struct vmbus_channel_packet_multipage_buffer desc;

	u32 descsize;

	u32 packetlen;

	u32 packetlen_aligned;

	struct kvec bufferlist[3];

	u64 aligned_data = 0;

	u32 pfncount = NUM_PAGES_SPANNED(multi_pagebuffer->offset,

					 multi_pagebuffer->len);



	if (pfncount > MAX_MULTIPAGE_BUFFER_COUNT)

		return -EINVAL;



	/*

	 * Adjust the size down since vmbus_channel_packet_multipage_buffer is

	 * the largest size we support

	 */

	descsize = sizeof(struct vmbus_channel_packet_multipage_buffer) -

			  ((MAX_MULTIPAGE_BUFFER_COUNT - pfncount) *

			  sizeof(u64));

	packetlen = descsize + bufferlen;

	packetlen_aligned = ALIGN(packetlen, sizeof(u64));





	/* Setup the descriptor */

	desc.type = VM_PKT_DATA_USING_GPA_DIRECT;

	desc.flags = VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED;

	desc.dataoffset8 = descsize >> 3; /* in 8-bytes granularity */

	desc.length8 = (u16)(packetlen_aligned >> 3);

	desc.transactionid = requestid;

	desc.rangecount = 1;



	desc.range.len = multi_pagebuffer->len;

	desc.range.offset = multi_pagebuffer->offset;



	memcpy(desc.range.pfn_array, multi_pagebuffer->pfn_array,

	       pfncount * sizeof(u64));



	bufferlist[0].iov_base = &desc;

	bufferlist[0].iov_len = descsize;

	bufferlist[1].iov_base = buffer;

	bufferlist[1].iov_len = bufferlen;

	bufferlist[2].iov_base = &aligned_data;

	bufferlist[2].iov_len = (packetlen_aligned - packetlen);



	return hv_ringbuffer_write(channel, bufferlist, 3);

}

EXPORT_SYMBOL_GPL(vmbus_sendpacket_multipagebuffer);



/**

 * vmbus_recvpacket() - Retrieve the user packet on the specified channel

 * @channel: Pointer to vmbus_channel structure.

include/linux/hyperv.h

+0 −6
Original line number Diff line number Diff line
@@ -1052,12 +1052,6 @@ extern int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel, 
					   u64 requestid,

					   u32 flags);



extern int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,

					struct hv_multipage_buffer *mpb,

					void *buffer,

					u32 bufferlen,

					u64 requestid);



extern int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,

				     struct vmbus_packet_mpb_array *mpb,

				     u32 desc_size,