Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-01 10:45:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Drivers: hv: vmbus: Update indentation in create_gpadl_header()

Browse Source 
A previous commit left the indentation in create_gpadl_header()
unchanged for ease of review. Update the indentation and remove
line wrap in two places where it is no longer necessary.

No functional change.

Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/20240111165451.269418-2-mhklinux@outlook.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240111165451.269418-2-mhklinux@outlook.com>
This commit is contained in:
Michael Kelley 2024-01-11 08:54:51 -08:00 committed by Wei Liu
parent 8db0edc4ac
commit 9645e74414
1 changed files with 69 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

140
drivers/hv/channel.c
View File

@ -327,84 +327,82 @@ static int create_gpadl_header(enum hv_gpadl_type type, void *kbuffer,
sizeof(struct gpa_range);
pfncount = umin(pagecount, pfnsize / sizeof(u64));
msgsize = sizeof(struct vmbus_channel_msginfo) +
sizeof(struct vmbus_channel_gpadl_header) +
sizeof(struct gpa_range) + pfncount * sizeof(u64);
msgheader = kzalloc(msgsize, GFP_KERNEL);
if (!msgheader)
return -ENOMEM;
INIT_LIST_HEAD(&msgheader->submsglist);
msgheader->msgsize = msgsize;
gpadl_header = (struct vmbus_channel_gpadl_header *)
msgheader->msg;
gpadl_header->rangecount = 1;
gpadl_header->range_buflen = sizeof(struct gpa_range) +
pagecount * sizeof(u64);
gpadl_header->range[0].byte_offset = 0;
gpadl_header->range[0].byte_count = hv_gpadl_size(type, size);
for (i = 0; i < pfncount; i++)
gpadl_header->range[0].pfn_array[i] = hv_gpadl_hvpfn(
type, kbuffer, size, send_offset, i);
*msginfo = msgheader;
pfnsum = pfncount;
pfnleft = pagecount - pfncount;
/* how many pfns can we fit in a body message */
pfnsize = MAX_SIZE_CHANNEL_MESSAGE -
sizeof(struct vmbus_channel_gpadl_body);
pfncount = pfnsize / sizeof(u64);
/*
* If pfnleft is zero, everything fits in the header and no body
* messages are needed
*/
while (pfnleft) {
pfncurr = umin(pfncount, pfnleft);
msgsize = sizeof(struct vmbus_channel_msginfo) +
sizeof(struct vmbus_channel_gpadl_header) +
sizeof(struct gpa_range) + pfncount * sizeof(u64);
msgheader = kzalloc(msgsize, GFP_KERNEL);
if (!msgheader)
sizeof(struct vmbus_channel_gpadl_body) +
pfncurr * sizeof(u64);
msgbody = kzalloc(msgsize, GFP_KERNEL);
if (!msgbody) {
struct vmbus_channel_msginfo *pos = NULL;
struct vmbus_channel_msginfo *tmp = NULL;
/*
* Free up all the allocated messages.
*/
list_for_each_entry_safe(pos, tmp,
&msgheader->submsglist,
msglistentry) {
list_del(&pos->msglistentry);
kfree(pos);
}
kfree(msgheader);
return -ENOMEM;
}
INIT_LIST_HEAD(&msgheader->submsglist);
msgheader->msgsize = msgsize;
gpadl_header = (struct vmbus_channel_gpadl_header *)
msgheader->msg;
gpadl_header->rangecount = 1;
gpadl_header->range_buflen = sizeof(struct gpa_range) +
pagecount * sizeof(u64);
gpadl_header->range[0].byte_offset = 0;
gpadl_header->range[0].byte_count = hv_gpadl_size(type, size);
for (i = 0; i < pfncount; i++)
gpadl_header->range[0].pfn_array[i] = hv_gpadl_hvpfn(
type, kbuffer, size, send_offset, i);
*msginfo = msgheader;
pfnsum = pfncount;
pfnleft = pagecount - pfncount;
/* how many pfns can we fit in a body message */
pfnsize = MAX_SIZE_CHANNEL_MESSAGE -
sizeof(struct vmbus_channel_gpadl_body);
pfncount = pfnsize / sizeof(u64);
msgbody->msgsize = msgsize;
gpadl_body = (struct vmbus_channel_gpadl_body *)msgbody->msg;
/*
* If pfnleft is zero, everything fits in the header and no body
* messages are needed
* Gpadl is u32 and we are using a pointer which could
* be 64-bit
* This is governed by the guest/host protocol and
* so the hypervisor guarantees that this is ok.
*/
while (pfnleft) {
pfncurr = umin(pfncount, pfnleft);
msgsize = sizeof(struct vmbus_channel_msginfo) +
sizeof(struct vmbus_channel_gpadl_body) +
pfncurr * sizeof(u64);
msgbody = kzalloc(msgsize, GFP_KERNEL);
for (i = 0; i < pfncurr; i++)
gpadl_body->pfn[i] = hv_gpadl_hvpfn(type,
kbuffer, size, send_offset, pfnsum + i);
if (!msgbody) {
struct vmbus_channel_msginfo *pos = NULL;
struct vmbus_channel_msginfo *tmp = NULL;
/*
* Free up all the allocated messages.
*/
list_for_each_entry_safe(pos, tmp,
&msgheader->submsglist,
msglistentry) {
list_del(&pos->msglistentry);
kfree(pos);
}
kfree(msgheader);
return -ENOMEM;
}
msgbody->msgsize = msgsize;
gpadl_body =
(struct vmbus_channel_gpadl_body *)msgbody->msg;
/*
* Gpadl is u32 and we are using a pointer which could
* be 64-bit
* This is governed by the guest/host protocol and
* so the hypervisor guarantees that this is ok.
*/
for (i = 0; i < pfncurr; i++)
gpadl_body->pfn[i] = hv_gpadl_hvpfn(type,
kbuffer, size, send_offset, pfnsum + i);
/* add to msg header */
list_add_tail(&msgbody->msglistentry,
&msgheader->submsglist);
pfnsum += pfncurr;
pfnleft -= pfncurr;
}
/* add to msg header */
list_add_tail(&msgbody->msglistentry, &msgheader->submsglist);
pfnsum += pfncurr;
pfnleft -= pfncurr;
}
return 0;
}