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Merge branch 'two-reverts-to-calm-down-devlink-discussion' 

Leon Romanovsky says:

====================
Two reverts to calm down devlink discussion

Two reverts as was discussed in [1], fast, easy and wrong in long run
solution to syzkaller bug [2].

[1] https://lore.kernel.org/all/20211026120234.3408fbcc@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com
[2] https://lore.kernel.org/netdev/000000000000af277405cf0a7ef0@google.com/
====================

Link: https://lore.kernel.org/r/cover.1635276828.git.leonro@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2021-10-27 11:58:11 -07:00
parent 6487c81939 c5e0321e43
commit 4796e2518a
1 changed files with 14 additions and 10 deletions
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24
net/core/devlink.c
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@ -10754,7 +10754,8 @@ devlink_trap_group_notify(struct devlink *devlink,
WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW &&
cmd != DEVLINK_CMD_TRAP_GROUP_DEL);
ASSERT_DEVLINK_REGISTERED(devlink);
if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
return;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
@ -11081,6 +11082,9 @@ devlink_trap_group_register(struct devlink *devlink,
}
list_add_tail(&group_item->list, &devlink->trap_group_list);
devlink_trap_group_notify(devlink, group_item,
DEVLINK_CMD_TRAP_GROUP_NEW);
return 0;
err_group_init:
@ -11101,6 +11105,8 @@ devlink_trap_group_unregister(struct devlink *devlink,
if (WARN_ON_ONCE(!group_item))
return;
devlink_trap_group_notify(devlink, group_item,
DEVLINK_CMD_TRAP_GROUP_DEL);
list_del(&group_item->list);
free_percpu(group_item->stats);
kfree(group_item);
@ -11120,8 +11126,6 @@ int devlink_trap_groups_register(struct devlink *devlink,
{
int i, err;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
mutex_lock(&devlink->lock);
for (i = 0; i < groups_count; i++) {
const struct devlink_trap_group *group = &groups[i];
@ -11159,8 +11163,6 @@ void devlink_trap_groups_unregister(struct devlink *devlink,
{
int i;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
mutex_lock(&devlink->lock);
for (i = groups_count - 1; i >= 0; i--)
devlink_trap_group_unregister(devlink, &groups[i]);
@ -11178,7 +11180,8 @@ devlink_trap_policer_notify(struct devlink *devlink,
WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW &&
cmd != DEVLINK_CMD_TRAP_POLICER_DEL);
ASSERT_DEVLINK_REGISTERED(devlink);
if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
return;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
@ -11220,6 +11223,9 @@ devlink_trap_policer_register(struct devlink *devlink,
}
list_add_tail(&policer_item->list, &devlink->trap_policer_list);
devlink_trap_policer_notify(devlink, policer_item,
DEVLINK_CMD_TRAP_POLICER_NEW);
return 0;
err_policer_init:
@ -11237,6 +11243,8 @@ devlink_trap_policer_unregister(struct devlink *devlink,
if (WARN_ON_ONCE(!policer_item))
return;
devlink_trap_policer_notify(devlink, policer_item,
DEVLINK_CMD_TRAP_POLICER_DEL);
list_del(&policer_item->list);
if (devlink->ops->trap_policer_fini)
devlink->ops->trap_policer_fini(devlink, policer);
@ -11258,8 +11266,6 @@ devlink_trap_policers_register(struct devlink *devlink,
{
int i, err;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
mutex_lock(&devlink->lock);
for (i = 0; i < policers_count; i++) {
const struct devlink_trap_policer *policer = &policers[i];
@ -11301,8 +11307,6 @@ devlink_trap_policers_unregister(struct devlink *devlink,
{
int i;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
mutex_lock(&devlink->lock);
for (i = policers_count - 1; i >= 0; i--)
devlink_trap_policer_unregister(devlink, &policers[i]);