[lkml]   [2009]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [RFC] drivers/base: Add bus_register_notifier_alldev() variant
    On Wed, Mar 11, 2009 at 10:26 AM, Greg KH <> wrote:
    > On Fri, Mar 06, 2009 at 09:10:19AM -0700, Grant Likely wrote:
    >> From: Grant Likely <>
    >> bus_register_notifier_alldev() is a variation on bus_register_notifier()
    >> which also triggers the notifier callback for devices already on the bus
    >> and already bound to drivers.
    >> This function is useful for the case where a driver needs to get a
    >> reference to a struct device other than the one it is bound to and
    >> it is not known if the device will be bound before or after this
    >> function is called.  For example, an Ethernet device connected to
    >> a PHY that is probed separately.
    > Can't you just walk the list of all devices already on the bus to get
    > "notified" of them, and then register your notifier handler as well (or
    > register it first, and then walk the list, which is pretty much what
    > your patch does)?

    Yes, and I originally did, but it looks to me like a useful common
    pattern that is less error prone than open coding it.


    Grant Likely, B.Sc., P.Eng.
    Secret Lab Technologies Ltd.
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2009-03-11 17:39    [W:0.033 / U:68.580 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site