Hi Andrew, After merging the akpm-current tree, today's linux-next build (x86_64 allmodconfig) produced this warning: ./usr/include/linux/userfaultfd.h:14: found __[us]{8,16,32,64} type without #include Introduced by commit 2873f48b446c ("userfaultfd: uAPI"). -- Cheers, Stephen Rothwell sfr@canb.auug.org.au