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net: Move NetClientState.info_str to dynamic allocations

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The info_str field of the NetClientState structure is static and has a size
of 256 bytes. This amount is often unclaimed, and the field itself is used
exclusively for HMP "info network".

The patch translates info_str to dynamic memory allocation.

This action is also allows us to painlessly discard usage of this field
for backend devices.

Signed-off-by: Alexey Kirillov <lekiravi@yandex-team.ru>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Alexey Kirillov 2021-03-03 12:59:08 +03:00 • committed by Jason Wang
parent 3c3b656885
commit 59b5437eb7
11 changed files with 47 additions and 49 deletions
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3
net/vhost-user.c
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@ -327,8 +327,7 @@ static int net_vhost_user_init(NetClientState *peer, const char *device,
user = g_new0(struct VhostUserState, 1);
for (i = 0; i < queues; i++) {
nc = qemu_new_net_client(&net_vhost_user_info, peer, device, name);
snprintf(nc->info_str, sizeof(nc->info_str), "vhost-user%d to %s",
i, chr->label);
nc->info_str = g_strdup_printf("vhost-user%d to %s", i, chr->label);
nc->queue_index = i;
if (!nc0) {
nc0 = nc;