Hi Jonathan, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on net/master] [also build test ERROR on linus/master v5.8-rc1 next-20200618] [cannot apply to char-misc/char-misc-testing net-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Jonathan-Lemon/netgpu-networking... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git ef7232da6bcd4294cbb2d424bc35885721570f01 config: x86_64-randconfig-s021-20200618 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-10-gc17b1b06-dirty # save the attached .config to linux build tree make W=1 C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from <command-line>:32: 10 | unsigned prod ____cacheline_aligned_in_smp; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ./usr/include/misc/shqueue.h: In function '__sq_load_acquire_cons': 38 | q->cached_cons = READ_ONCE(*q->cons); | ^~~~~~~~~ ./usr/include/misc/shqueue.h: In function '__sq_store_release_cons': 44 | smp_mb(); /* D, matches A */ | ^~~~~~ 45 | WRITE_ONCE(*q->cons, q->cached_cons); | ^~~~~~~~~~ ./usr/include/misc/shqueue.h: In function '__sq_load_acquire_prod': 52 | smp_rmb(); /* C, matches B */ | ^~~~~~~ ./usr/include/misc/shqueue.h: In function '__sq_store_release_prod': 57 | smp_wmb(); /* B, matches C */ | ^~~~~~~ ./usr/include/misc/shqueue.h: At top level: 67 | static __inline__ bool sq_empty(struct shared_queue *q) | ^~~~ ./usr/include/misc/shqueue.h:72:19: error: unknown type name 'bool' 72 | static __inline__ bool sq_cons_empty(struct shared_queue *q) | ^~~~ ./usr/include/misc/shqueue.h:90:19: error: unknown type name 'bool' 90 | static __inline__ bool sq_cons_avail(struct shared_queue *q, unsigned count) | ^~~~ ./usr/include/misc/shqueue.h: In function 'sq_cons_avail': 93 | return true; | ^~~~ ./usr/include/misc/shqueue.h:93:10: note: each undeclared identifier is reported only once for each function it appears in ./usr/include/misc/shqueue.h: In function 'sq_cons_peek': 113 | return NULL; | ^~~~ ./usr/include/misc/shqueue.h:1:1: note: 'NULL' is defined in header '<stddef.h>'; did you forget to '#include <stddef.h>'? +++ |+#include <stddef.h> 1 | #pragma once ./usr/include/misc/shqueue.h: At top level: ./usr/include/misc/shqueue.h:181:19: error: unknown type name 'bool' 181 | static __inline__ bool sq_prod_avail(struct shared_queue *q, unsigned count) | ^~~~ ./usr/include/misc/shqueue.h: In function 'sq_prod_avail': ./usr/include/misc/shqueue.h:184:10: error: 'true' undeclared (first use in this function) 184 | return true; | ^~~~ ./usr/include/misc/shqueue.h: In function 'sq_prod_reserve': ./usr/include/misc/shqueue.h:197:10: error: 'NULL' undeclared (first use in this function) 197 | return NULL; | ^~~~ ./usr/include/misc/shqueue.h:197:10: note: 'NULL' is defined in header '<stddef.h>'; did you forget to '#include <stddef.h>'? cc1: some warnings being treated as errors --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org