12:47 p.m.
tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4
head: e750aa38b72bb12d634d711213d2d8e5b23e5b09
commit: 2672af5cccad3454d7d0545d86e2bea2b813d09e [3/10] BACKPORT:FROMGIT:Bluetooth:
centralize default value initialization.
config: s390-randconfig-r023-20200614 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
cb5072d1877b38c972f95092db2cedbcddb81da6)
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
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390-linux-gnu
git checkout 2672af5cccad3454d7d0545d86e2bea2b813d09e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
Note: the chrome-os/chromeos-5.4 HEAD e750aa38b72bb12d634d711213d2d8e5b23e5b09 builds
fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>, old ones prefixed by <<):
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : ^
include/uapi/linux/swab.h:20:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | ^
In file included from net/dccp/ipv6.c:17:
In file included from include/net/addrconf.h:52:
In file included from include/linux/ipv6.h:87:
In file included from include/linux/icmpv6.h:5:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:492:45: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro
'__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : ^
include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | ^
In file included from net/dccp/ipv6.c:17:
In file included from include/net/addrconf.h:52:
In file included from include/linux/ipv6.h:87:
In file included from include/linux/icmpv6.h:5:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:492:45: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro
'__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : ^
include/uapi/linux/swab.h:22:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
^
In file included from net/dccp/ipv6.c:17:
In file included from include/net/addrconf.h:52:
In file included from include/linux/ipv6.h:87:
In file included from include/linux/icmpv6.h:5:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:492:45: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro
'__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32'
__fswab32(x))
^
In file included from net/dccp/ipv6.c:17:
In file included from include/net/addrconf.h:52:
In file included from include/linux/ipv6.h:87:
In file included from include/linux/icmpv6.h:5:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:76:
include/asm-generic/io.h:503:33: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:513:46: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew(cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:523:46: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel(cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:585:20: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:593:20: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:601:20: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:610:21: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:619:21: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:628:21: warning: performing pointer arithmetic on a null pointer
has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
20 warnings generated.
/tmp/ipv6-998441.s: Assembler messages:
> /tmp/ipv6-998441.s:1288: Error: bad expression
> /tmp/ipv6-998441.s:1288: Error: junk at end of line, first unrecognized character is
`r'
clang-11: error: assembler command failed with exit code 1 (use -v to see
invocation)
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org