# \[PATCH net-next v4 09/13\] devlink: add devl\_warn() helper and use it in port warnings - From: Jiri Pirko \ - Date: 2026-03-12 10:04:21 - List: linux-trace-kernel - Page: https://ratatoskr.run/linux-trace-kernel/2026/03/8535660 - Thread: https://ratatoskr.run/netdev/2026/03/8535651/t.md ```text From: Jiri Pirko Introduce devl_warn() macro that uses dev_warn() when a backing device is available and falls back to pr_warn() otherwise. Convert all dev_warn() calls in port.c to use it, preparing for devlink instances without a backing device. Signed-off-by: Jiri Pirko --- v2->v3: - new patch --- net/devlink/devl_internal.h | 9 +++++++++ net/devlink/port.c | 14 +++++++------- 2 files changed, 16 insertions(+), 7 deletions(-) diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h index 3cc7e696e0fd..cb2ffef1ac2d 100644 --- a/net/devlink/devl_internal.h +++ b/net/devlink/devl_internal.h @@ -71,6 +71,15 @@ struct devlink *__devlink_alloc(const struct devlink_ops *ops, size_t priv_size, struct net *net, struct device *dev, const struct device_driver *dev_driver); +#define devl_warn(devlink, format, args...) \ + do { \ + if ((devlink)->dev) \ + dev_warn((devlink)->dev, format, ##args); \ + else \ + pr_warn("devlink (%s): " format, \ + devlink_dev_name(devlink), ##args); \ + } while (0) + /* devlink instances are open to the access from the user space after * devlink_register() call. Such logical barrier allows us to have certain * expectations related to locking. diff --git a/net/devlink/port.c b/net/devlink/port.c index fa3e1597711b..7fcd1d3ed44c 100644 --- a/net/devlink/port.c +++ b/net/devlink/port.c @@ -976,7 +976,7 @@ static void devlink_port_type_warn(struct work_struct *work) struct devlink_port *port = container_of(to_delayed_work(work), struct devlink_port, type_warn_dw); - dev_warn(port->devlink->dev, "Type was not set for devlink port."); + devl_warn(port->devlink, "Type was not set for devlink port."); } static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) @@ -1242,9 +1242,9 @@ static void __devlink_port_type_set(struct devlink_port *devlink_port, */ void devlink_port_type_eth_set(struct devlink_port *devlink_port) { - dev_warn(devlink_port->devlink->dev, - "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", - devlink_port->index); + devl_warn(devlink_port->devlink, + "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", + devlink_port->index); __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, NULL); } EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); @@ -1273,9 +1273,9 @@ EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); void devlink_port_type_clear(struct devlink_port *devlink_port) { if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) - dev_warn(devlink_port->devlink->dev, - "devlink port type for port %d cleared without a software interface reference, device type not supported by the kernel?\n", - devlink_port->index); + devl_warn(devlink_port->devlink, + "devlink port type for port %d cleared without a software interface reference, device type not supported by the kernel?\n", + devlink_port->index); __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); } EXPORT_SYMBOL_GPL(devlink_port_type_clear); -- 2.51.1 ```