[kbuild-all] [linuxtv-media:master 319/322] include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>'

tree: git://linuxtv.org/media_tree.git master head: c4176e12a755d0c761736c14bd2656ffc733eb95 commit: f90cf6079bf67988f8b1ad1ade70fc89d0080905 [319/322] media: vidtv: add a bridge driver config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout f90cf6079bf67988f8b1ad1ade70fc89d0080905 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): In file included from include/linux/bits.h:22, from include/linux/bitops.h:5, from include/linux/kernel.h:12, from drivers/media/test-drivers/vidtv/vidtv_psi.c:18: drivers/media/test-drivers/vidtv/vidtv_psi.c: In function 'vidtv_psi_sdt_serv_get_desc_loop_len': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:103:9: note: in expansion of macro 'GENMASK' 103 | mask = GENMASK(0, 11); | ^~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c: In function 'vidtv_psi_pmt_stream_get_desc_loop_len': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:118:9: note: in expansion of macro 'GENMASK' 118 | mask = GENMASK(0, 9); | ^~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c: In function 'vidtv_psi_pmt_get_desc_loop_len': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:133:9: note: in expansion of macro 'GENMASK' 133 | mask = GENMASK(0, 9); | ^~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c: In function 'vidtv_psi_get_sec_len': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:148:9: note: in expansion of macro 'GENMASK' 148 | mask = GENMASK(0, 11); | ^~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c: In function 'vidtv_psi_get_pat_program_pid': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:163:9: note: in expansion of macro 'GENMASK' 163 | mask = GENMASK(0, 12); | ^~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c: In function 'vidtv_psi_pmt_stream_get_elem_pid': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:178:9: note: in expansion of macro 'GENMASK' 178 | mask = GENMASK(0, 12); | ^~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c: In function 'vidtv_psi_set_sec_len': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:209:9: note: in expansion of macro 'GENMASK' 209 | mask = GENMASK(13, 15); | ^~~~~~~ -- In file included from include/linux/bits.h:22, from include/linux/ratelimit_types.h:5, from include/linux/printk.h:10, from drivers/media/test-drivers/vidtv/vidtv_pes.c:17: drivers/media/test-drivers/vidtv/vidtv_pes.c: In function 'vidtv_pes_write_pts_dts': 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_pes.c:94:10: note: in expansion of macro 'GENMASK' 94 | mask1 = GENMASK(30, 32); | ^~~~~~~ In file included from include/linux/ratelimit_types.h:5, from include/linux/printk.h:10, from drivers/media/test-drivers/vidtv/vidtv_pes.c:17: include/linux/bits.h:35:22: warning: left shift count >= width of type [-Wshift-count-overflow] 35 | (((~UL(0)) - (UL(1) << (l)) + 1) & \ | ^~ include/linux/bits.h:38:31: note: in expansion of macro '__GENMASK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_pes.c:94:10: note: in expansion of macro 'GENMASK' 94 | mask1 = GENMASK(30, 32); | ^~~~~~~ In file included from include/linux/bits.h:22, from include/linux/ratelimit_types.h:5, from include/linux/printk.h:10, from drivers/media/test-drivers/vidtv/vidtv_pes.c:17: 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_pes.c:95:10: note: in expansion of macro 'GENMASK' 95 | mask2 = GENMASK(15, 29); | ^~~~~~~ 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_pes.c:96:10: note: in expansion of macro 'GENMASK' 96 | mask3 = GENMASK(0, 14); | ^~~~~~~ -- In file included from include/linux/kernel.h:15, from include/asm-generic/bug.h:20, from arch/m68k/include/asm/bug.h:32, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/gfp.h:5, from include/linux/slab.h:15, from drivers/media/test-drivers/vidtv/vidtv_s302m.c:21: drivers/media/test-drivers/vidtv/vidtv_s302m.c: In function 'vidtv_s302m_write_frames': 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/printk.h:508:10: note: in definition of macro 'printk_ratelimited' 508 | printk(fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:12:22: note: in expansion of macro 'KERN_SOH' 12 | #define KERN_WARNING KERN_SOH "4" /* warning conditions */ | ^~~~~~~~ include/linux/printk.h:524:21: note: in expansion of macro 'KERN_WARNING' 524 | printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_s302m.c:425:4: note: in expansion of macro 'pr_warn_ratelimited' 425 | pr_warn_ratelimited("write size was %d, expected %lu\n", | ^~~~~~~~~~~~~~~~~~~ At top level: drivers/media/test-drivers/vidtv/vidtv_s302m.c:41:17: warning: 'reverse' defined but not used [-Wunused-const-variable=] 41 | static const u8 reverse[256] = { | ^~~~~~~ git remote add linuxtv-media git://linuxtv.org/media_tree.git git fetch --no-tags linuxtv-media master git checkout f90cf6079bf67988f8b1ad1ade70fc89d0080905 vim +16 include/linux/build_bug.h bc6245e5efd70c Ian Abbott 2017-07-10 6 bc6245e5efd70c Ian Abbott 2017-07-10 7 #ifdef __CHECKER__ bc6245e5efd70c Ian Abbott 2017-07-10 8 #define BUILD_BUG_ON_ZERO(e) (0) bc6245e5efd70c Ian Abbott 2017-07-10 9 #else /* __CHECKER__ */ bc6245e5efd70c Ian Abbott 2017-07-10 10 /* bc6245e5efd70c Ian Abbott 2017-07-10 11 * Force a compilation error if condition is true, but also produce a 8788994376d84d Rikard Falkeborn 2019-12-04 12 * result (of value 0 and type int), so the expression can be used bc6245e5efd70c Ian Abbott 2017-07-10 13 * e.g. in a structure initializer (or where-ever else comma expressions bc6245e5efd70c Ian Abbott 2017-07-10 14 * aren't permitted). bc6245e5efd70c Ian Abbott 2017-07-10 15 */ 8788994376d84d Rikard Falkeborn 2019-12-04 @16 #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) 527edbc18a70e7 Masahiro Yamada 2019-01-03 17 #endif /* __CHECKER__ */ 527edbc18a70e7 Masahiro Yamada 2019-01-03 18 :::::: The code at line 16 was first introduced by commit :::::: 8788994376d84d627450fd0d67deb6a66ddf07d7 linux/build_bug.h: change type to int :::::: TO: Rikard Falkeborn <rikard.falkeborn(a)gmail.com&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org