diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mdio.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/mdio.h b/include/linux/mdio.h index 5bfd99d1a40a..bf9d1d750693 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -13,6 +13,17 @@ struct mii_bus; +/* Multiple levels of nesting are possible. However typically this is + * limited to nested DSA like layer, a MUX layer, and the normal + * user. Instead of trying to handle the general case, just define + * these cases. + */ +enum mdio_mutex_lock_class { + MDIO_MUTEX_NORMAL, + MDIO_MUTEX_MUX, + MDIO_MUTEX_NESTED, +}; + struct mdio_device { struct device dev; |