Hi NeilBrown, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on nfsd/nfsd-next] [also build test WARNING on nfs/linux-next cel/for-next v5.7-rc6 next-20200519] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/NeilBrown/SUNRPC-svc-fix-gss-flavour-registration-problems/20200521-112443 base: git://linux-nfs.org/~bfields/linux.git nfsd-next config: um-allmodconfig (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make ARCH=um If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>, old ones prefixed by <<): cc1: warning: arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] In file included from include/linux/uaccess.h:11:0, from include/linux/sched/task.h:11, from include/linux/sched/signal.h:9, from include/linux/sunrpc/types.h:14, from net/sunrpc/svcauth.c:15: arch/um/include/asm/uaccess.h: In function '__access_ok': arch/um/include/asm/uaccess.h:17:29: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] (((unsigned long) (addr) >= FIXADDR_USER_START) && ^ arch/um/include/asm/uaccess.h:45:3: note: in expansion of macro '__access_ok_vsyscall' __access_ok_vsyscall(addr, size) || ^~~~~~~~~~~~~~~~~~~~ In file included from include/linux/kernel.h:11:0, from include/linux/list.h:9, from include/linux/module.h:12, from net/sunrpc/svcauth.c:14: include/asm-generic/fixmap.h: In function 'fix_to_virt': include/asm-generic/fixmap.h:32:19: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] BUILD_BUG_ON(idx >= __end_of_fixed_addresses); ^ include/linux/compiler.h:330:9: note: in definition of macro '__compiletime_assert' if (!(condition)) ^~~~~~~~~ include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^~~~~~~~~~~~~~~~ include/asm-generic/fixmap.h:32:2: note: in expansion of macro 'BUILD_BUG_ON' BUILD_BUG_ON(idx >= __end_of_fixed_addresses); ^~~~~~~~~~~~ net/sunrpc/svcauth.c: At top level: >> net/sunrpc/svcauth.c:209:6: warning: no previous prototype for 'auth_domain_cleanup' [-Wmissing-prototypes] void auth_domain_cleanup(void) ^~~~~~~~~~~~~~~~~~~ vim +/auth_domain_cleanup +209 net/sunrpc/svcauth.c 208 > 209 void auth_domain_cleanup(void) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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