* [intel-linux-intel-lts:5.4/yocto 15/1142] include/linux/bits.h:8:26: warning: left shift count >= width of type
@ 2021-03-05 5:38 kernel test robot
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From: kernel test robot @ 2021-03-05 5:38 UTC (permalink / raw)
To: kbuild-all
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tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto
head: eeb611e5394c56d45c5cc8f7dc484c9f19e93143
commit: 9b07a958f2eb496c88faf0bd749eb600357f4190 [15/1142] crypto: keembay: Add Keem Bay OCS HCU
config: m68k-randconfig-r036-20210305 (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
# https://github.com/intel/linux-intel-lts/commit/9b07a958f2eb496c88faf0bd749eb600357f4190
git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git
git fetch --no-tags intel-linux-intel-lts 5.4/yocto
git checkout 9b07a958f2eb496c88faf0bd749eb600357f4190
# 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@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/kernel.h:11,
from include/linux/delay.h:22,
from drivers/crypto/keembay/keembay-ocs-hcu-core.c:8:
include/linux/scatterlist.h: In function 'sg_set_buf':
arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of pointer with null pointer [-Wextra]
169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~
include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~~~~~~~~~~
In file included from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/thread_info.h:12,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from arch/m68k/include/asm/irqflags.h:6,
from include/linux/irqflags.h:16,
from arch/m68k/include/asm/atomic.h:6,
from include/linux/atomic.h:7,
from include/linux/cpumask.h:13,
from include/linux/interrupt.h:8,
from drivers/crypto/keembay/keembay-ocs-hcu-core.c:9:
include/linux/dma-mapping.h: In function 'dma_map_resource':
arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of pointer with null pointer [-Wextra]
169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
include/asm-generic/bug.h:182:25: note: in definition of macro 'WARN_ON'
182 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
include/linux/dma-mapping.h:355:6: note: in expansion of macro 'WARN_ON_ONCE'
355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr))))
| ^~~~~~~~~~~~
arch/m68k/include/asm/page_mm.h:170:25: note: in expansion of macro 'virt_addr_valid'
170 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
include/linux/dma-mapping.h:355:19: note: in expansion of macro 'pfn_valid'
355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr))))
| ^~~~~~~~~
In file included from include/linux/bitops.h:5,
from include/linux/kernel.h:12,
from include/linux/delay.h:22,
from drivers/crypto/keembay/keembay-ocs-hcu-core.c:8:
drivers/crypto/keembay/keembay-ocs-hcu-core.c: In function 'kmb_ocs_add_dma_tail':
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
8 | #define BIT(nr) (UL(1) << (nr))
| ^~
drivers/crypto/keembay/ocs-hcu.h:30:36: note: in expansion of macro 'BIT'
30 | #define OCS_HCU_DMA_MAX_ADDR_MASK (BIT(32) - 1)
| ^~~
drivers/crypto/keembay/keembay-ocs-hcu-core.c:226:46: note: in expansion of macro 'OCS_HCU_DMA_MAX_ADDR_MASK'
226 | if (addr & KMB_OCS_HCU_ALIGN_MASK || addr > OCS_HCU_DMA_MAX_ADDR_MASK)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/bitops.h:5,
from include/linux/kernel.h:12,
from include/linux/delay.h:22,
from drivers/crypto/keembay/ocs-hcu.c:8:
drivers/crypto/keembay/ocs-hcu.c: In function 'ocs_hcu_ll_dma_start':
>> include/linux/bits.h:8:26: warning: left shift count >= width of type [-Wshift-count-overflow]
8 | #define BIT(nr) (UL(1) << (nr))
| ^~
drivers/crypto/keembay/ocs-hcu.h:30:36: note: in expansion of macro 'BIT'
30 | #define OCS_HCU_DMA_MAX_ADDR_MASK (BIT(32) - 1)
| ^~~
drivers/crypto/keembay/ocs-hcu.c:389:22: note: in expansion of macro 'OCS_HCU_DMA_MAX_ADDR_MASK'
389 | if (!head || head > OCS_HCU_DMA_MAX_ADDR_MASK)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
vim +8 include/linux/bits.h
8bd9cb51daac8933 Will Deacon 2018-06-19 7
95b980d62d52c4c1 Masahiro Yamada 2019-07-16 @8 #define BIT(nr) (UL(1) << (nr))
95b980d62d52c4c1 Masahiro Yamada 2019-07-16 9 #define BIT_ULL(nr) (ULL(1) << (nr))
95b980d62d52c4c1 Masahiro Yamada 2019-07-16 10 #define BIT_MASK(nr) (UL(1) << ((nr) % BITS_PER_LONG))
8bd9cb51daac8933 Will Deacon 2018-06-19 11 #define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
95b980d62d52c4c1 Masahiro Yamada 2019-07-16 12 #define BIT_ULL_MASK(nr) (ULL(1) << ((nr) % BITS_PER_LONG_LONG))
8bd9cb51daac8933 Will Deacon 2018-06-19 13 #define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG)
8bd9cb51daac8933 Will Deacon 2018-06-19 14 #define BITS_PER_BYTE 8
8bd9cb51daac8933 Will Deacon 2018-06-19 15
:::::: The code@line 8 was first introduced by commit
:::::: 95b980d62d52c4c1768ee719e8db3efe27ef52b2 linux/bits.h: make BIT(), GENMASK(), and friends available in assembly
:::::: TO: Masahiro Yamada <yamada.masahiro@socionext.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.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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