tree: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git testing head: 92c132e8330968a43558b0b513c626fe29c9aa4a commit: 92c132e8330968a43558b0b513c626fe29c9aa4a [10/10] SUNRPC: Destroy the back channel when we destroy the host transport config: i386-defconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: git checkout 92c132e8330968a43558b0b513c626fe29c9aa4a # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): net/sunrpc/xprt.c: In function 'xprt_destroy_cb': xprt_destroy_backchannel(xprt, UINT_MAX); ^~~~~~~~~~~~~~~~~~~~~~~~ xprt_setup_backchannel cc1: some warnings being treated as errors vim +1948 net/sunrpc/xprt.c 1933 1934 static void xprt_destroy_cb(struct work_struct *work) 1935 { 1936 struct rpc_xprt *xprt = 1937 container_of(work, struct rpc_xprt, task_cleanup); 1938 1939 rpc_xprt_debugfs_unregister(xprt); 1940 rpc_destroy_wait_queue(&xprt->binding); 1941 rpc_destroy_wait_queue(&xprt->pending); 1942 rpc_destroy_wait_queue(&xprt->sending); 1943 rpc_destroy_wait_queue(&xprt->backlog); 1944 kfree(xprt->servername); 1945 /* 1946 * Destroy any existing back channel 1947 */ 1949 1950 /* 1951 * Tear down transport state and free the rpc_xprt 1952 */ 1953 xprt->ops->destroy(xprt); 1954 } 1955 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation