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author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-02-25 19:34:03 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2019-02-26 08:49:05 -0800 |
commit | b473b0d23529cde6c825a592c035e9d910b19e21 (patch) | |
tree | 9a3fbac499f820e7cb565296f79b5d0207d8d5ae /net | |
parent | f4b6bcc7002f0e3a3428bac33cf1945abff95450 (diff) | |
download | linux-b473b0d23529cde6c825a592c035e9d910b19e21.tar.gz linux-b473b0d23529cde6c825a592c035e9d910b19e21.tar.bz2 linux-b473b0d23529cde6c825a592c035e9d910b19e21.zip |
devlink: create a special NDO for getting the devlink instance
Instead of iterating over all devlink ports add a NDO which
will return the devlink instance from the driver.
v2: add the netdev_to_devlink() helper (Michal)
v3: check that devlink has ops (Florian)
v4: hold devlink_mutex (Jiri)
Suggested-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/core/devlink.c | 56 |
1 files changed, 17 insertions, 39 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index 05e04ea0a5c7..24bfbd2d71e7 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -6397,9 +6397,6 @@ static void __devlink_compat_running_version(struct devlink *devlink, struct sk_buff *msg; int rem, err; - if (!devlink->ops->info_get) - return; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return; @@ -6431,55 +6428,36 @@ free_msg: void devlink_compat_running_version(struct net_device *dev, char *buf, size_t len) { - struct devlink_port *devlink_port; struct devlink *devlink; mutex_lock(&devlink_mutex); - list_for_each_entry(devlink, &devlink_list, list) { - mutex_lock(&devlink->lock); - list_for_each_entry(devlink_port, &devlink->port_list, list) { - if (devlink_port->type == DEVLINK_PORT_TYPE_ETH && - devlink_port->type_dev == dev) { - __devlink_compat_running_version(devlink, - buf, len); - mutex_unlock(&devlink->lock); - goto out; - } - } - mutex_unlock(&devlink->lock); - } -out: + devlink = netdev_to_devlink(dev); + if (!devlink || !devlink->ops || !devlink->ops->info_get) + goto unlock_list; + + mutex_lock(&devlink->lock); + __devlink_compat_running_version(devlink, buf, len); + mutex_unlock(&devlink->lock); +unlock_list: mutex_unlock(&devlink_mutex); } int devlink_compat_flash_update(struct net_device *dev, const char *file_name) { - struct devlink_port *devlink_port; struct devlink *devlink; + int ret = -EOPNOTSUPP; mutex_lock(&devlink_mutex); - list_for_each_entry(devlink, &devlink_list, list) { - mutex_lock(&devlink->lock); - list_for_each_entry(devlink_port, &devlink->port_list, list) { - int ret = -EOPNOTSUPP; - - if (devlink_port->type != DEVLINK_PORT_TYPE_ETH || - devlink_port->type_dev != dev) - continue; + devlink = netdev_to_devlink(dev); + if (!devlink || !devlink->ops || !devlink->ops->flash_update) + goto unlock_list; - mutex_unlock(&devlink_mutex); - if (devlink->ops->flash_update) - ret = devlink->ops->flash_update(devlink, - file_name, - NULL, NULL); - mutex_unlock(&devlink->lock); - return ret; - } - mutex_unlock(&devlink->lock); - } + mutex_lock(&devlink->lock); + ret = devlink->ops->flash_update(devlink, file_name, NULL, NULL); + mutex_unlock(&devlink->lock); +unlock_list: mutex_unlock(&devlink_mutex); - - return -EOPNOTSUPP; + return ret; } static int __init devlink_init(void) |