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devlink: Allocate devlink directly in requested net namespace

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There is no need in extra call indirection and check from impossible
flow where someone tries to set namespace without prior call
to devlink_alloc().

Instead of this extra logic and additional EXPORT_SYMBOL, use specialized
devlink allocation function that receives net namespace as an argument.

Such specialized API allows clear view when devlink initialized in wrong
net namespace and/or kernel users don't try to change devlink namespace
under the hood.

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Leon Romanovsky
2021-07-29 20:19:25 +03:00
committed by Jakub Kicinski
parent 05a7f4a8df
commit 2671345504
3 changed files with 22 additions and 22 deletions
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14
include/net/devlink.h
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@@ -1540,8 +1540,18 @@ static inline struct devlink *netdev_to_devlink(struct net_device *dev)
struct ib_device;
struct net *devlink_net(const struct devlink *devlink);
void devlink_net_set(struct devlink *devlink, struct net *net);
struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
/* This call is intended for software devices that can create
* devlink instances in other namespaces than init_net.
*
* Drivers that operate on real HW must use devlink_alloc() instead.
*/
struct devlink *devlink_alloc_ns(const struct devlink_ops *ops,
size_t priv_size, struct net *net);
static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
size_t priv_size)
{
return devlink_alloc_ns(ops, priv_size, &init_net);
}
int devlink_register(struct devlink *devlink, struct device *dev);
void devlink_unregister(struct devlink *devlink);
void devlink_reload_enable(struct devlink *devlink);