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authorJakub Kicinski <jakub.kicinski@netronome.com>2019-02-26 06:34:03 +0300
committerDavid S. Miller <davem@davemloft.net>2019-02-26 19:49:05 +0300
commitb473b0d23529cde6c825a592c035e9d910b19e21 (patch)
tree9a3fbac499f820e7cb565296f79b5d0207d8d5ae /net/core
parentf4b6bcc7002f0e3a3428bac33cf1945abff95450 (diff)
downloadlinux-b473b0d23529cde6c825a592c035e9d910b19e21.tar.xz
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/core')
-rw-r--r--net/core/devlink.c56
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)