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Date: Fri, 11 Feb 2022 02:44:27 +0800
From: kernel test robot <lkp@...el.com>
To: Guo Ren <guoren@...ux.alibaba.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [csky-linux:riscv_compat_v6_svpbmt-v6 35/35]
arch/riscv/include/asm/pgtable-64.h:105:2: error: expected assembly-time
absolute expression
tree: https://github.com/c-sky/csky-linux riscv_compat_v6_svpbmt-v6
head: 54acb36c958fc990cc59889f79c8ddca7386c295
commit: 54acb36c958fc990cc59889f79c8ddca7386c295 [35/35] riscv: xtpbmt: Fixup T-HEAD CPU _PAGE_KERNEL quirks
config: riscv-randconfig-c006-20220209 (https://download.01.org/0day-ci/archive/20220211/202202110254.CrnRD2CM-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project aa845d7a245d85c441d0bd44fc7b6c3be8f3de8d)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/c-sky/csky-linux/commit/54acb36c958fc990cc59889f79c8ddca7386c295
git remote add csky-linux https://github.com/c-sky/csky-linux
git fetch --no-tags csky-linux riscv_compat_v6_svpbmt-v6
git checkout 54acb36c958fc990cc59889f79c8ddca7386c295
# 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=riscv SHELL=/bin/bash arch/riscv/kernel/
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 arch/riscv/kernel/setup.c:21:
In file included from include/linux/efi.h:20:
In file included from include/linux/rtc.h:17:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
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/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from arch/riscv/kernel/setup.c:21:
In file included from include/linux/efi.h:20:
In file included from include/linux/rtc.h:17:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
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/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from arch/riscv/kernel/setup.c:21:
In file included from include/linux/efi.h:20:
In file included from include/linux/rtc.h:17:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
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:1024:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
In file included from arch/riscv/kernel/setup.c:12:
In file included from include/linux/mm.h:33:
In file included from include/linux/pgtable.h:6:
In file included from arch/riscv/include/asm/pgtable.h:111:
>> arch/riscv/include/asm/pgtable-64.h:105:2: error: expected assembly-time absolute expression
ALT_SVPBMT(val, _PAGE_NOCACHE);
^
arch/riscv/include/asm/errata_list.h:52:5: note: expanded from macro 'ALT_SVPBMT'
asm(ALTERNATIVE_2("li %0, 0\t\nnop", \
^
arch/riscv/include/asm/alternative-macros.h:147:2: note: expanded from macro 'ALTERNATIVE_2'
_ALTERNATIVE_CFG_2(old_content, new_content_1, vendor_id_1, errata_id_1, CONFIG_k_1, \
^
arch/riscv/include/asm/alternative-macros.h:117:2: note: expanded from macro '_ALTERNATIVE_CFG_2'
__ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, IS_ENABLED(CONFIG_k_1), \
^
arch/riscv/include/asm/alternative-macros.h:112:2: note: expanded from macro '__ALTERNATIVE_CFG_2'
ALT_NEW_CONTENT(vendor_id_1, errata_id_1, enable_1, new_c_1) \
^
arch/riscv/include/asm/alternative-macros.h:88:3: note: expanded from macro 'ALT_NEW_CONTENT'
".org . - (887b - 886b) + (889b - 888b)\n" \
^
<inline asm>:25:6: note: instantiated into assembly here
.org . - (887b - 886b) + (889b - 888b)
^
In file included from arch/riscv/kernel/setup.c:12:
In file included from include/linux/mm.h:33:
In file included from include/linux/pgtable.h:6:
In file included from arch/riscv/include/asm/pgtable.h:111:
>> arch/riscv/include/asm/pgtable-64.h:105:2: error: expected assembly-time absolute expression
ALT_SVPBMT(val, _PAGE_NOCACHE);
^
arch/riscv/include/asm/errata_list.h:52:5: note: expanded from macro 'ALT_SVPBMT'
asm(ALTERNATIVE_2("li %0, 0\t\nnop", \
^
arch/riscv/include/asm/alternative-macros.h:147:2: note: expanded from macro 'ALTERNATIVE_2'
_ALTERNATIVE_CFG_2(old_content, new_content_1, vendor_id_1, errata_id_1, CONFIG_k_1, \
^
arch/riscv/include/asm/alternative-macros.h:117:2: note: expanded from macro '_ALTERNATIVE_CFG_2'
__ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, IS_ENABLED(CONFIG_k_1), \
^
arch/riscv/include/asm/alternative-macros.h:112:2: note: expanded from macro '__ALTERNATIVE_CFG_2'
ALT_NEW_CONTENT(vendor_id_1, errata_id_1, enable_1, new_c_1) \
^
arch/riscv/include/asm/alternative-macros.h:89:3: note: expanded from macro 'ALT_NEW_CONTENT'
".org . - (889b - 888b) + (887b - 886b)\n" \
^
<inline asm>:26:6: note: instantiated into assembly here
.org . - (889b - 888b) + (887b - 886b)
^
7 warnings and 2 errors generated.
vim +105 arch/riscv/include/asm/pgtable-64.h
54acb36c958fc9 Guo Ren 2022-02-10 100
bac41a3372f958 Wei Fu 2021-11-29 101 static inline u64 riscv_page_nocache(void)
bac41a3372f958 Wei Fu 2021-11-29 102 {
bac41a3372f958 Wei Fu 2021-11-29 103 u64 val;
bac41a3372f958 Wei Fu 2021-11-29 104
bac41a3372f958 Wei Fu 2021-11-29 @105 ALT_SVPBMT(val, _PAGE_NOCACHE);
bac41a3372f958 Wei Fu 2021-11-29 106 return val;
bac41a3372f958 Wei Fu 2021-11-29 107 }
bac41a3372f958 Wei Fu 2021-11-29 108
:::::: The code at line 105 was first introduced by commit
:::::: bac41a3372f9586652716665df9da6c4059b9309 riscv: add RISC-V Svpbmt extension support
:::::: TO: Wei Fu <wefu@...hat.com>
:::::: CC: Guo Ren <guoren@...ux.alibaba.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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