Hi Dave, Today's linux-next build (x86_64 allmodconfig) produced this warning: net/core/sock.c: In function 'sock_update_classid': include/net/cls_cgroup.h:42: warning: 'classid' may be used uninitialized in this function include/net/cls_cgroup.h:42: note: 'classid' was declared here In the case that rcu_dereference() returns a value < 0, classid will not be assigned in task_cls_classid(). I don't know if this is possible - if not, then why is the test there? -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/