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Code Issues Releases Wiki Activity

devlink: allow registering parameters after the instance

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It's most natural to register the instance first and then its
subobjects. Now that we can use the instance lock to protect
the atomicity of all init - it should also be safe.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2023-01-05 22:34:00 -08:00 committed by David S. Miller
parent 6ef8f7da92
commit 1d18bb1a4d
1 changed files with 11 additions and 11 deletions
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22
net/devlink/leftover.c
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@ -5263,7 +5263,13 @@ static void devlink_param_notify(struct devlink *devlink,
WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL &&
cmd != DEVLINK_CMD_PORT_PARAM_NEW &&
cmd != DEVLINK_CMD_PORT_PARAM_DEL);
ASSERT_DEVLINK_REGISTERED(devlink);
/* devlink_notify_register() / devlink_notify_unregister()
* will replay the notifications if the params are added/removed
* outside of the lifetime of the instance.
*/
if (!devl_is_registered(devlink))
return;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
@ -10915,8 +10921,6 @@ int devlink_params_register(struct devlink *devlink,
const struct devlink_param *param = params;
int i, err;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
for (i = 0; i < params_count; i++, param++) {
err = devlink_param_register(devlink, param);
if (err)
@ -10947,8 +10951,6 @@ void devlink_params_unregister(struct devlink *devlink,
const struct devlink_param *param = params;
int i;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
for (i = 0; i < params_count; i++, param++)
devlink_param_unregister(devlink, param);
}
@ -10968,8 +10970,6 @@ int devlink_param_register(struct devlink *devlink,
{
struct devlink_param_item *param_item;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
WARN_ON(devlink_param_verify(param));
WARN_ON(devlink_param_find_by_name(&devlink->param_list, param->name));
@ -10985,6 +10985,7 @@ int devlink_param_register(struct devlink *devlink,
param_item->param = param;
list_add_tail(&param_item->list, &devlink->param_list);
devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW);
return 0;
}
EXPORT_SYMBOL_GPL(devlink_param_register);
@ -10999,11 +11000,10 @@ void devlink_param_unregister(struct devlink *devlink,
{
struct devlink_param_item *param_item;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
param_item =
devlink_param_find_by_name(&devlink->param_list, param->name);
WARN_ON(!param_item);
devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_DEL);
list_del(&param_item->list);
kfree(param_item);
}
@ -11063,8 +11063,6 @@ int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
{
struct devlink_param_item *param_item;
ASSERT_DEVLINK_NOT_REGISTERED(devlink);
param_item = devlink_param_find_by_id(&devlink->param_list, param_id);
if (!param_item)
return -EINVAL;
@ -11078,6 +11076,8 @@ int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
else
param_item->driverinit_value = init_val;
param_item->driverinit_value_valid = true;
devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW);
return 0;
}
EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set);