* [linux-review:UPDATE-20200520-051842/Emil-Velikov/linux-bits-h-adjust-GENMASK_INPUT_CHECK-check/20200519-205539 1/1] drivers/video/fbdev/sis/init.c:3366:4: error: anonymous bit-field has negative width (-1)
@ 2020-05-20 4:16 kbuild test robot
0 siblings, 0 replies; only message in thread
From: kbuild test robot @ 2020-05-20 4:16 UTC (permalink / raw)
To: kbuild-all
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tree: https://github.com/0day-ci/linux/commits/UPDATE-20200520-051842/Emil-Velikov/linux-bits-h-adjust-GENMASK_INPUT_CHECK-check/20200519-205539
head: 0ae605b3f9c51e182b11da825f5fa8948bc88af9
commit: 0ae605b3f9c51e182b11da825f5fa8948bc88af9 [1/1] linux/bits.h: adjust GENMASK_INPUT_CHECK() check
config: powerpc-randconfig-r015-20200519 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project e6658079aca6d971b4e9d7137a3a2ecbc9c34aec)
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
git checkout 0ae605b3f9c51e182b11da825f5fa8948bc88af9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>, old ones prefixed by <<):
In file included from drivers/video/fbdev/sis/init.c:59:
In file included from drivers/video/fbdev/sis/init.h:64:
In file included from arch/powerpc/include/asm/io.h:27:
In file included from include/linux/device.h:15:
In file included from include/linux/dev_printk.h:16:
In file included from include/linux/ratelimit.h:6:
In file included from include/linux/sched.h:12:
In file included from arch/powerpc/include/asm/current.h:13:
In file included from arch/powerpc/include/asm/paca.h:17:
In file included from arch/powerpc/include/asm/lppaca.h:45:
In file included from include/linux/spinlock_types.h:18:
In file included from include/linux/lockdep.h:43:
In file included from include/linux/list.h:9:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
In file included from arch/powerpc/include/asm/bitops.h:250:
In file included from include/asm-generic/bitops/le.h:6:
In file included from arch/powerpc/include/uapi/asm/byteorder.h:14:
include/linux/byteorder/big_endian.h:8:2: warning: inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-W#warnings]
#warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
^
>> drivers/video/fbdev/sis/init.c:3366:4: error: anonymous bit-field has negative width (-1)
GETBITSTR((SiS_Pr->CVTotal -2), 10:10, 0:0) |
^
drivers/video/fbdev/sis/init.c:3326:35: note: expanded from macro 'GETBITSTR'
#define GETBITSTR(val,from,to) ((GETBITS(val,from)) << (0?to))
^
drivers/video/fbdev/sis/init.c:3325:40: note: expanded from macro 'GETBITS'
#define GETBITS(var,mask) (((var) & GENBITSMASK(mask)) >> (0?mask))
^
drivers/video/fbdev/sis/init.c:3324:30: note: expanded from macro 'GENBITSMASK'
#define GENBITSMASK(mask) GENMASK(1?mask,0?mask)
^
include/linux/bits.h:39:3: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:25:3: note: expanded from macro 'GENMASK_INPUT_CHECK'
(BUILD_BUG_ON_ZERO(__builtin_choose_expr( ^
include/linux/build_bug.h:16:53: note: expanded from macro 'BUILD_BUG_ON_ZERO'
#define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
^
drivers/video/fbdev/sis/init.c:3367:4: error: anonymous bit-field has negative width (-1)
GETBITSTR((SiS_Pr->CVDisplay -1), 10:10, 1:1) |
^
drivers/video/fbdev/sis/init.c:3326:35: note: expanded from macro 'GETBITSTR'
#define GETBITSTR(val,from,to) ((GETBITS(val,from)) << (0?to))
^
drivers/video/fbdev/sis/init.c:3325:40: note: expanded from macro 'GETBITS'
#define GETBITS(var,mask) (((var) & GENBITSMASK(mask)) >> (0?mask))
^
drivers/video/fbdev/sis/init.c:3324:30: note: expanded from macro 'GENBITSMASK'
#define GENBITSMASK(mask) GENMASK(1?mask,0?mask)
^
include/linux/bits.h:39:3: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:25:3: note: expanded from macro 'GENMASK_INPUT_CHECK'
(BUILD_BUG_ON_ZERO(__builtin_choose_expr( ^
include/linux/build_bug.h:16:53: note: expanded from macro 'BUILD_BUG_ON_ZERO'
#define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
^
drivers/video/fbdev/sis/init.c:3368:4: error: anonymous bit-field has negative width (-1)
GETBITSTR((SiS_Pr->CVBlankStart-1), 10:10, 2:2) |
^
drivers/video/fbdev/sis/init.c:3326:35: note: expanded from macro 'GETBITSTR'
#define GETBITSTR(val,from,to) ((GETBITS(val,from)) << (0?to))
^
drivers/video/fbdev/sis/init.c:3325:40: note: expanded from macro 'GETBITS'
#define GETBITS(var,mask) (((var) & GENBITSMASK(mask)) >> (0?mask))
^
drivers/video/fbdev/sis/init.c:3324:30: note: expanded from macro 'GENBITSMASK'
#define GENBITSMASK(mask) GENMASK(1?mask,0?mask)
^
include/linux/bits.h:39:3: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:25:3: note: expanded from macro 'GENMASK_INPUT_CHECK'
(BUILD_BUG_ON_ZERO(__builtin_choose_expr( ^
include/linux/build_bug.h:16:53: note: expanded from macro 'BUILD_BUG_ON_ZERO'
#define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
^
drivers/video/fbdev/sis/init.c:3369:4: error: anonymous bit-field has negative width (-1)
GETBITSTR((SiS_Pr->CVSyncStart -x), 10:10, 3:3) |
^
drivers/video/fbdev/sis/init.c:3326:35: note: expanded from macro 'GETBITSTR'
#define GETBITSTR(val,from,to) ((GETBITS(val,from)) << (0?to))
^
drivers/video/fbdev/sis/init.c:3325:40: note: expanded from macro 'GETBITS'
#define GETBITS(var,mask) (((var) & GENBITSMASK(mask)) >> (0?mask))
^
drivers/video/fbdev/sis/init.c:3324:30: note: expanded from macro 'GENBITSMASK'
#define GENBITSMASK(mask) GENMASK(1?mask,0?mask)
^
include/linux/bits.h:39:3: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:25:3: note: expanded from macro 'GENMASK_INPUT_CHECK'
(BUILD_BUG_ON_ZERO(__builtin_choose_expr( ^
include/linux/build_bug.h:16:53: note: expanded from macro 'BUILD_BUG_ON_ZERO'
#define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
^
drivers/video/fbdev/sis/init.c:3370:4: error: anonymous bit-field has negative width (-1)
GETBITSTR((SiS_Pr->CVBlankEnd -1), 8:8, 4:4) |
^
drivers/video/fbdev/sis/init.c:3326:35: note: expanded from macro 'GETBITSTR'
#define GETBITSTR(val,from,to) ((GETBITS(val,from)) << (0?to))
^
drivers/video/fbdev/sis/init.c:3325:40: note: expanded from macro 'GETBITS'
#define GETBITS(var,mask) (((var) & GENBITSMASK(mask)) >> (0?mask))
^
drivers/video/fbdev/sis/init.c:3324:30: note: expanded from macro 'GENBITSMASK'
#define GENBITSMASK(mask) GENMASK(1?mask,0?mask)
^
include/linux/bits.h:39:3: note: expanded from macro 'GENMASK'
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
^
include/linux/bits.h:25:3: note: expanded from macro 'GENMASK_INPUT_CHECK'
vim +3366 drivers/video/fbdev/sis/init.c
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3328
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3329 void
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3330 SiS_CalcCRRegisters(struct SiS_Private *SiS_Pr, int depth)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3331 {
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3332 int x = 1; /* Fix sync */
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3333
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3334 SiS_Pr->CCRT1CRTC[0] = ((SiS_Pr->CHTotal >> 3) - 5) & 0xff; /* CR0 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3335 SiS_Pr->CCRT1CRTC[1] = (SiS_Pr->CHDisplay >> 3) - 1; /* CR1 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3336 SiS_Pr->CCRT1CRTC[2] = (SiS_Pr->CHBlankStart >> 3) - 1; /* CR2 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3337 SiS_Pr->CCRT1CRTC[3] = (((SiS_Pr->CHBlankEnd >> 3) - 1) & 0x1F) | 0x80; /* CR3 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3338 SiS_Pr->CCRT1CRTC[4] = (SiS_Pr->CHSyncStart >> 3) + 3; /* CR4 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3339 SiS_Pr->CCRT1CRTC[5] = ((((SiS_Pr->CHBlankEnd >> 3) - 1) & 0x20) << 2) | /* CR5 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3340 (((SiS_Pr->CHSyncEnd >> 3) + 3) & 0x1F);
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3341
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3342 SiS_Pr->CCRT1CRTC[6] = (SiS_Pr->CVTotal - 2) & 0xFF; /* CR6 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3343 SiS_Pr->CCRT1CRTC[7] = (((SiS_Pr->CVTotal - 2) & 0x100) >> 8) /* CR7 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3344 | (((SiS_Pr->CVDisplay - 1) & 0x100) >> 7)
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3345 | (((SiS_Pr->CVSyncStart - x) & 0x100) >> 6)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3346 | (((SiS_Pr->CVBlankStart- 1) & 0x100) >> 5)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3347 | 0x10
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3348 | (((SiS_Pr->CVTotal - 2) & 0x200) >> 4)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3349 | (((SiS_Pr->CVDisplay - 1) & 0x200) >> 3)
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3350 | (((SiS_Pr->CVSyncStart - x) & 0x200) >> 2);
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3351
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3352 SiS_Pr->CCRT1CRTC[16] = ((((SiS_Pr->CVBlankStart - 1) & 0x200) >> 4) >> 5); /* CR9 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3353
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3354 if(depth != 8) {
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3355 if(SiS_Pr->CHDisplay >= 1600) SiS_Pr->CCRT1CRTC[16] |= 0x60; /* SRE */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3356 else if(SiS_Pr->CHDisplay >= 640) SiS_Pr->CCRT1CRTC[16] |= 0x40;
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3357 }
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3358
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3359 SiS_Pr->CCRT1CRTC[8] = (SiS_Pr->CVSyncStart - x) & 0xFF; /* CR10 */
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3360 SiS_Pr->CCRT1CRTC[9] = ((SiS_Pr->CVSyncEnd - x) & 0x0F) | 0x80; /* CR11 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3361 SiS_Pr->CCRT1CRTC[10] = (SiS_Pr->CVDisplay - 1) & 0xFF; /* CR12 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3362 SiS_Pr->CCRT1CRTC[11] = (SiS_Pr->CVBlankStart - 1) & 0xFF; /* CR15 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3363 SiS_Pr->CCRT1CRTC[12] = (SiS_Pr->CVBlankEnd - 1) & 0xFF; /* CR16 */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3364
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3365 SiS_Pr->CCRT1CRTC[13] = /* SRA */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 @3366 GETBITSTR((SiS_Pr->CVTotal -2), 10:10, 0:0) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3367 GETBITSTR((SiS_Pr->CVDisplay -1), 10:10, 1:1) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3368 GETBITSTR((SiS_Pr->CVBlankStart-1), 10:10, 2:2) |
544393fe584d33 drivers/video/sis/init.c Thomas Winischhofer 2005-09-09 3369 GETBITSTR((SiS_Pr->CVSyncStart -x), 10:10, 3:3) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3370 GETBITSTR((SiS_Pr->CVBlankEnd -1), 8:8, 4:4) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3371 GETBITSTR((SiS_Pr->CVSyncEnd ), 4:4, 5:5) ;
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3372
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3373 SiS_Pr->CCRT1CRTC[14] = /* SRB */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3374 GETBITSTR((SiS_Pr->CHTotal >> 3) - 5, 9:8, 1:0) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3375 GETBITSTR((SiS_Pr->CHDisplay >> 3) - 1, 9:8, 3:2) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3376 GETBITSTR((SiS_Pr->CHBlankStart >> 3) - 1, 9:8, 5:4) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3377 GETBITSTR((SiS_Pr->CHSyncStart >> 3) + 3, 9:8, 7:6) ;
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3378
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3379
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3380 SiS_Pr->CCRT1CRTC[15] = /* SRC */
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3381 GETBITSTR((SiS_Pr->CHBlankEnd >> 3) - 1, 7:6, 1:0) |
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3382 GETBITSTR((SiS_Pr->CHSyncEnd >> 3) + 3, 5:5, 2:2) ;
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3383 }
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16 3384
:::::: The code at line 3366 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2020-05-20 4:16 [linux-review:UPDATE-20200520-051842/Emil-Velikov/linux-bits-h-adjust-GENMASK_INPUT_CHECK-check/20200519-205539 1/1] drivers/video/fbdev/sis/init.c:3366:4: error: anonymous bit-field has negative width (-1) kbuild test robot
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