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vmbus: remove unused vmbus_sendpacket_multipagebuffer

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This function is not used anywhere in current code.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger
2017-08-16 08:56:24 -07:00
committed by David S. Miller
parent 774c46732d
commit 9a603b8e11
2 changed files with 0 additions and 62 deletions
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56
drivers/hv/channel.c
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@ -814,62 +814,6 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
} }
EXPORT_SYMBOL_GPL(vmbus_sendpacket_mpb_desc); 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 * vmbus_recvpacket() - Retrieve the user packet on the specified channel
* @channel: Pointer to vmbus_channel structure. * @channel: Pointer to vmbus_channel structure.

6
include/linux/hyperv.h
View File

@ -1052,12 +1052,6 @@ extern int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
u64 requestid, u64 requestid,
u32 flags); 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, extern int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
struct vmbus_packet_mpb_array *mpb, struct vmbus_packet_mpb_array *mpb,
u32 desc_size, u32 desc_size,