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Date: Sun, 3 Apr 2022 04:15:45 +0800
From: kernel test robot <lkp@...el.com>
To: Heiko Carstens <hca@...ux.ibm.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org, Vasily Gorbik <gor@...ux.ibm.com>
Subject: <inline asm>:18:8: error: unexpected token in '.rept' directive
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 6f34f8c3d6178527d4c02aa3a53c370cc70cb91e
commit: 4afeb670710efa5cd5ed8b1d9f2d22d6ce332bcc s390/alternatives: use instructions instead of byte patterns
date: 6 days ago
config: s390-randconfig-r044-20220403 (https://download.01.org/0day-ci/archive/20220403/202204030434.f5uEqs4t-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c4a1b07d0979e7ff20d7d541af666d822d66b566)
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-s390x-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4afeb670710efa5cd5ed8b1d9f2d22d6ce332bcc
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4afeb670710efa5cd5ed8b1d9f2d22d6ce332bcc
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/message/fusion/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from drivers/message/fusion/mptctl.c:54:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/message/fusion/mptctl.c:54:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/message/fusion/mptctl.c:54:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: 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:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: 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:617:20: 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:625:20: 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:634:21: 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:643:21: 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:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
drivers/message/fusion/mptctl.c:2337:8: warning: variable 'retval' set but not used [-Wunused-but-set-variable]
int retval;
^
drivers/message/fusion/mptctl.c:2887:6: warning: variable 'where' set but not used [-Wunused-but-set-variable]
int where = 1;
^
<inline asm>:5:5: error: expected absolute expression
.if 6651b-6641b > 254
^
<inline asm>:6:2: error: cpu alternatives does not support instructions blocks > 254 bytes
.error "cpu alternatives does not support instructions blocks > 254 bytes"
^
<inline asm>:8:5: error: expected absolute expression
.if (6651b-6641b) % 2
^
<inline asm>:9:2: error: cpu alternatives instructions length is odd
.error "cpu alternatives instructions length is odd"
^
<inline asm>:15:5: error: expected absolute expression
.if -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) > 6
^
>> <inline asm>:18:8: error: unexpected token in '.rept' directive
.rept (-(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) - (6620b-662b)) / 2
^
<inline asm>:21:8: error: unexpected token in '.rept' directive
.rept -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) / 6
^
>> <inline asm>:22:2: error: unknown directive
.jgnop .
^
>> <inline asm>:23:7: error: unmatched '.endr' directive
.endr
^
<inline asm>:24:8: error: unexpected token in '.rept' directive
.rept -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) % 6 / 4
^
<inline asm>:26:7: error: unmatched '.endr' directive
.endr
^
<inline asm>:27:8: error: unexpected token in '.rept' directive
.rept -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) % 6 % 4 / 2
^
<inline asm>:29:6: error: unmatched '.endr' directive
.endr
^
<inline asm>:32:5: error: expected absolute expression
.if 662b-661b > 254
^
<inline asm>:33:2: error: cpu alternatives does not support instructions blocks > 254 bytes
.error "cpu alternatives does not support instructions blocks > 254 bytes"
^
<inline asm>:35:5: error: expected absolute expression
.if (662b-661b) % 2
^
<inline asm>:36:2: error: cpu alternatives instructions length is odd
.error "cpu alternatives instructions length is odd"
^
<inline asm>:5:5: error: expected absolute expression
.if 6651b-6641b > 254
^
<inline asm>:6:2: error: cpu alternatives does not support instructions blocks > 254 bytes
.error "cpu alternatives does not support instructions blocks > 254 bytes"
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
14 warnings and 20 errors generated.
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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