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    nl80211: increase wiphy dump size dynamically · 645e77de
    Johannes Berg 提交于
    Given a device with many channels capabilities the wiphy
    information can still overflow even though its size in
    3.9 was reduced to 3.8 levels. For new userspace and
    kernel 3.10 we're going to implement a new "split dump"
    protocol that can use multiple messages per wiphy.
    
    For now though, add a workaround to be able to send more
    information to userspace. Since generic netlink doesn't
    have a way to set the minimum dump size globally, and we
    wouldn't really want to set it globally anyway, increase
    the size only when needed, as described in the comments.
    As userspace might not be prepared for large buffers, we
    can only use 4k.
    
    Also increase the size for the get_wiphy command.
    Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
    645e77de
nl80211.c 263.9 KB