Error when compiling the block device tap driver

Error when compiling the block device tap driver

[Guillaume Thouvenin]

Hello,

 When the block tap driver is selected in linux-2.6.16.13-xen (Xen --->
Block device tap driver) it produces an error during the compilation. I
see the problem but I'm not sure about how to fix it. So I copy the
error. I'm using xen-3.0-testing.hg

<...>
CC      drivers/xen/blktap/xenbus.o
drivers/xen/blktap/xenbus.c: In function `frontend_changed':
drivers/xen/blktap/xenbus.c:71: warning: passing arg 1 of `xenbus_exists' makes integer from pointer without a cast
drivers/xen/blktap/xenbus.c:71: error: too few arguments to function `xenbus_exists' 
drivers/xen/blktap/xenbus.c:72: warning: passing arg 1 of `xenbus_rm' makes integer from pointer without a cast
drivers/xen/blktap/xenbus.c:72: error: too few arguments to function `xenbus_rm' 
drivers/xen/blktap/xenbus.c:80: warning: passing arg 1 of `xenbus_gather' makes integer from pointer without a cast
drivers/xen/blktap/xenbus.c:96: warning: implicit declaration of function `xenbus_dev_ok' 
drivers/xen/blktap/xenbus.c:101: error: too few arguments to function `xenbus_transaction_end'
drivers/xen/blktap/xenbus.c: In function `blkback_probe':
drivers/xen/blktap/xenbus.c:154: warning: passing arg 1 of `xenbus_gather' makes integer from pointer without a cast
drivers/xen/blktap/xenbus.c:163: warning: passing arg 1 of `xenbus_exists' makes integer from pointer without a cast
drivers/xen/blktap/xenbus.c:163: error: too few arguments to function `xenbus_exists' 
make[3]: *** [drivers/xen/blktap/xenbus.o] Error 1
make[2]: *** [drivers/xen/blktap] Error 2 make[1]: *** [drivers/xen]
Error 2 make: *** [drivers] Error 2


Hope this help,
Guillaume