[Xen-devel] [PATCH] make otherend_changed entrypoint optional for xenbus devices

[harry <harry@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Ewan,

    Here's the patch for making the otherend_changed entrypoint
optional.  The USB driver doesn't need this entrypoint because the state
machine driven by it is factored out of the driver code entirely into
xenidc.

    This is a resend.  I forgot to put [PATCH] in the subject line last
time.

Signed-off-by: Harry Butterworth butterwo@xxxxxxxxxx

diff -r 595ef1ab007c -r 2089b7edcada
linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c
--- a/linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c    Tue Nov
15 14:44:59 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c    Tue Nov
15 16:43:02 2005
@@ -299,8 +299,8 @@

        DPRINTK("state is %d, %s, %s",
                state, dev->otherend_watch.node, vec[XS_WATCH_PATH]);
-
-       drv->otherend_changed(dev, state);
+       if (drv->otherend_changed)
+               drv->otherend_changed(dev, state);
 }

Attachment: otherend-optional-patch
Description: Text Data

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