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devlink: Avoid overwriting port attributes of registered port

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Cited commit in fixes tag overwrites the port attributes for the
registered port.

Avoid such error by checking registered flag before setting attributes.

Fixes: 71ad8d55f8 ("devlink: Replace devlink_port_attrs_set parameters with a struct")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20201111034744.35554-1-parav@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Parav Pandit 2020-11-11 05:47:44 +02:00 committed by Jakub Kicinski
parent 9e2b7fa2df
commit 9f73bd1c2c
1 changed files with 6 additions and 2 deletions
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8
net/core/devlink.c
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@ -8254,8 +8254,6 @@ static int __devlink_port_attrs_set(struct devlink_port *devlink_port,
{
struct devlink_port_attrs *attrs = &devlink_port->attrs;
if (WARN_ON(devlink_port->registered))
return -EEXIST;
devlink_port->attrs_set = true;
attrs->flavour = flavour;
if (attrs->switch_id.id_len) {
@ -8279,6 +8277,8 @@ void devlink_port_attrs_set(struct devlink_port *devlink_port,
{
int ret;
if (WARN_ON(devlink_port->registered))
return;
devlink_port->attrs = *attrs;
ret = __devlink_port_attrs_set(devlink_port, attrs->flavour);
if (ret)
@ -8301,6 +8301,8 @@ void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 contro
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int ret;
if (WARN_ON(devlink_port->registered))
return;
ret = __devlink_port_attrs_set(devlink_port,
DEVLINK_PORT_FLAVOUR_PCI_PF);
if (ret)
@ -8326,6 +8328,8 @@ void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 contro
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int ret;
if (WARN_ON(devlink_port->registered))
return;
ret = __devlink_port_attrs_set(devlink_port,
DEVLINK_PORT_FLAVOUR_PCI_VF);
if (ret)