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    Subject[PATCH v5 0/4] Provide netdev naming-policy via sysfs
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    Hi

    This is v5 of the netdev naming-policy series. You can find v4 here:
    http://article.gmane.org/gmane.linux.kernel/1668161
    Changes since v4:
    - none


    This series implements a new sysfs attribute for netdevs called
    "name_assign_type". It provides an integer that describes where an interface
    name comes from. See Patch #1 for a description of this attribute. It is
    modelled after the existing "addr_assign_type" attribute.

    The main use-case is to allow udev to skip applying reliable ifnames to virtual
    devices. For instance, if wifi-P2P devices are created, wpas already provides a
    suitable naming-policy and udev shouldn't touch these devices. Same is true for
    other virtual devices.
    The idea is that if a device-name was provided by user-space, we should always
    prefer fixing this naming-policy instead of making udev rename the device. For
    kernel provided names that's hardly possible, though. Providing the
    naming-policy source via sysfs is thus a simple way to see whether renames are
    needed.

    Additionally, this field allows to detect whether a netdev has been manually
    renamed, which is quite useful for debugging and during crash-recovery.
    Furthermore, it fixes real udev bugs if a netdev is already renamed in the
    initrd and udev only runs in the real root. Detecting renames avoids overwriting
    custom user provided names.

    Thanks
    David

    David Herrmann (4):
    net: add name_assign_type netdev attribute
    mac80211: set NET_NAME_USER for user-space created ifs
    ath6kl: set NET_NAME_USER for P2P ifs
    brcmfmac: set NET_NAME_USER for P2P ifs

    drivers/net/wireless/ath/ath6kl/cfg80211.c | 5 ++++-
    drivers/net/wireless/ath/ath6kl/cfg80211.h | 1 +
    drivers/net/wireless/ath/ath6kl/core.c | 4 ++--
    drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 1 +
    include/linux/netdevice.h | 2 ++
    include/uapi/linux/netdevice.h | 4 ++++
    net/core/dev.c | 7 +++++++
    net/core/net-sysfs.c | 2 ++
    net/core/rtnetlink.c | 2 ++
    net/mac80211/cfg.c | 2 +-
    net/mac80211/ieee80211_i.h | 1 +
    net/mac80211/iface.c | 2 ++
    net/mac80211/main.c | 2 +-
    13 files changed, 30 insertions(+), 5 deletions(-)

    --
    1.9.1



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