[deller-parisc:for-next 5/6] arch/parisc/include/asm/bitops.h:20:2: error: #error "Please use 'ARCH=parisc64' to build the 64-bit kernel."

From: kernel test robot
Date: Mon Feb 14 2022 - 08:26:14 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next
head: dbd0b42350d5717786cb8257fbe5b528f3af9772
commit: b160628e9ebcdc85d0db9d7f423c26b3c7c179d0 [5/6] parisc: Show error if wrong 32/64-bit compiler is being used
config: parisc-randconfig-r004-20220213 (https://download.01.org/0day-ci/archive/20220214/202202142139.fHrrv9Oy-lkp@xxxxxxxxx/config)
compiler: hppa64-linux-gcc (GCC) 11.2.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git/commit/?id=b160628e9ebcdc85d0db9d7f423c26b3c7c179d0
git remote add deller-parisc https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
git fetch --no-tags deller-parisc for-next
git checkout b160628e9ebcdc85d0db9d7f423c26b3c7c179d0
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=parisc prepare

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

In file included from include/linux/bitops.h:33,
from include/linux/kernel.h:22,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
>> arch/parisc/include/asm/bitops.h:20:2: error: #error "Please use 'ARCH=parisc64' to build the 64-bit kernel."
20 | #error "Please use 'ARCH=parisc64' to build the 64-bit kernel."
| ^~~~~
In file included from arch/parisc/include/asm/bitops.h:209,
from include/linux/bitops.h:33,
from include/linux/kernel.h:22,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/asm-generic/bitops/__fls.h: In function '__fls':
include/asm-generic/bitops/__fls.h:18:28: warning: left shift count >= width of type [-Wshift-count-overflow]
18 | if (!(word & (~0ul << 32))) {
| ^~
include/asm-generic/bitops/__fls.h:20:22: warning: left shift count >= width of type [-Wshift-count-overflow]
20 | word <<= 32;
| ^~~
include/asm-generic/bitops/__fls.h:23:28: warning: left shift count >= width of type [-Wshift-count-overflow]
23 | if (!(word & (~0ul << (BITS_PER_LONG-16)))) {
| ^~
include/asm-generic/bitops/__fls.h:27:28: warning: left shift count >= width of type [-Wshift-count-overflow]
27 | if (!(word & (~0ul << (BITS_PER_LONG-8)))) {
| ^~
include/asm-generic/bitops/__fls.h:31:28: warning: left shift count >= width of type [-Wshift-count-overflow]
31 | if (!(word & (~0ul << (BITS_PER_LONG-4)))) {
| ^~
include/asm-generic/bitops/__fls.h:35:28: warning: left shift count >= width of type [-Wshift-count-overflow]
35 | if (!(word & (~0ul << (BITS_PER_LONG-2)))) {
| ^~
include/asm-generic/bitops/__fls.h:39:28: warning: left shift count >= width of type [-Wshift-count-overflow]
39 | if (!(word & (~0ul << (BITS_PER_LONG-1))))
| ^~
make[2]: *** [scripts/Makefile.build:121: kernel/bounds.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1191: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:219: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.


vim +20 arch/parisc/include/asm/bitops.h

14
15 /* compiler build environment sanity checks: */
16 #if !defined(CONFIG_64BIT) && defined(__LP64__)
17 #error "Please use 'ARCH=parisc' to build the 32-bit kernel."
18 #endif
19 #if defined(CONFIG_64BIT) && !defined(__LP64__)
> 20 #error "Please use 'ARCH=parisc64' to build the 64-bit kernel."
21 #endif
22

---
0-DAY CI Kernel Test Service, Intel Corporation
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