From ab1d0cc004d706523dcad7cdad97a2b94eecf169 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 25 Apr 2019 15:59:52 +0200 Subject: netdevsim: change debugfs tree topology With the model where dev is represented by devlink and ports are represented by devlink ports, make debugfs file names independent on netdev names. Change the topology to the one illustrated by the following example: $ ls /sys/kernel/debug/netdevsim/ netdevsim1 $ ls /sys/kernel/debug/netdevsim/netdevsim1/ bpf_bind_accept bpf_bind_verifier_delay bpf_bound_progs ports $ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/ 0 1 $ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/0/ bpf_map_accept bpf_offloaded_id bpf_tc_accept bpf_tc_non_bound_accept bpf_xdpdrv_accept bpf_xdpoffload_accept dev ipsec $ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/0/dev -l lrwxrwxrwx 1 root root 0 Apr 13 15:58 /sys/kernel/debug/netdevsim/netdevsim1/ports/0/dev -> ../../../netdevsim1 Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/netdevsim/netdev.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) (limited to 'drivers/net/netdevsim/netdev.c') diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c index 9b4310e20129..eb823bd0dc39 100644 --- a/drivers/net/netdevsim/netdev.c +++ b/drivers/net/netdevsim/netdev.c @@ -25,8 +25,6 @@ #include "netdevsim.h" -static struct dentry *nsim_ddir; - static int nsim_get_port_parent_id(struct net_device *dev, struct netdev_phys_item_id *ppid) { @@ -42,11 +40,11 @@ static int nsim_init(struct net_device *dev) char dev_link_name[32]; int err; - ns->ddir = debugfs_create_dir(netdev_name(dev), nsim_ddir); + ns->ddir = debugfs_create_dir("0", ns->nsim_dev->ports_ddir); if (IS_ERR_OR_NULL(ns->ddir)) return -ENOMEM; - sprintf(dev_link_name, "../../" DRV_NAME "_dev/%u", + sprintf(dev_link_name, "../../../" DRV_NAME "%u", ns->nsim_dev->nsim_bus_dev->dev.id); debugfs_create_symlink("dev", ns->ddir, dev_link_name); @@ -403,13 +401,9 @@ static int __init nsim_module_init(void) { int err; - nsim_ddir = debugfs_create_dir(DRV_NAME, NULL); - if (IS_ERR_OR_NULL(nsim_ddir)) - return -ENOMEM; - err = nsim_dev_init(); if (err) - goto err_debugfs_destroy; + return err; err = nsim_bus_init(); if (err) @@ -425,8 +419,6 @@ err_bus_exit: nsim_bus_exit(); err_dev_exit: nsim_dev_exit(); -err_debugfs_destroy: - debugfs_remove_recursive(nsim_ddir); return err; } @@ -435,7 +427,6 @@ static void __exit nsim_module_exit(void) rtnl_link_unregister(&nsim_link_ops); nsim_bus_exit(); nsim_dev_exit(); - debugfs_remove_recursive(nsim_ddir); } module_init(nsim_module_init); -- cgit v1.2.3-59-g8ed1b