arch/riscv/kernel/probes/kprobes.c:90:22: error: use of undeclared identifier 'PAGE_KERNEL_READ_EXEC'
8:11 a.m.
Hi Jisheng,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 38182162b50aa4e970e5997df0a0c4288147a153
commit: cdd1b2bd358ffda2638fe18ff47191e84e18525f riscv: kprobes: Implement
alloc_insn_page()
date: 10 days ago
config: riscv-randconfig-r006-20210506 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
8f5a2a5836cc8e4c1def2bdeb022e7b496623439)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout cdd1b2bd358ffda2638fe18ff47191e84e18525f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro
'__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:572:9: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inl(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl'
#define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE +
(c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro 'readl_cpu'
#define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force
__le32)__raw_readl(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro
'__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
outb(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb'
#define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro 'writeb_cpu'
#define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
outw(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw'
#define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro 'writew_cpu'
#define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v), (c)))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
outl(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl'
#define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro 'writel_cpu'
#define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c)))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
> arch/riscv/kernel/probes/kprobes.c:90:22: error: use of
undeclared identifier 'PAGE_KERNEL_READ_EXEC'
GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
^
7 warnings and 1 error generated.
vim +/PAGE_KERNEL_READ_EXEC +90 arch/riscv/kernel/probes/kprobes.c
86
87 void *alloc_insn_page(void)
88 {
89 return __vmalloc_node_range(PAGE_SIZE, 1, VMALLOC_START, VMALLOC_END,
90 GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
91
VM_FLUSH_RESET_PERMS, NUMA_NO_NODE,
92 __builtin_return_address(0));
93 }
94
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
5:10 a.m.
On 5/6/21 3:11 PM, kernel test robot wrote:
Hi Jisheng,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 38182162b50aa4e970e5997df0a0c4288147a153
commit: cdd1b2bd358ffda2638fe18ff47191e84e18525f riscv: kprobes: Implement
alloc_insn_page()
date: 10 days ago
config: riscv-randconfig-r006-20210506 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
8f5a2a5836cc8e4c1def2bdeb022e7b496623439)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout cdd1b2bd358ffda2638fe18ff47191e84e18525f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro
'__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:572:9: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inl(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl'
#define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE +
(c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro 'readl_cpu'
#define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force
__le32)__raw_readl(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro
'__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
outb(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb'
#define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro 'writeb_cpu'
#define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
outw(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw'
#define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro 'writew_cpu'
#define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v),
(c)))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
outl(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl'
#define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro 'writel_cpu'
#define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v),
(c)))
^
In file included from arch/riscv/kernel/probes/kprobes.c:3:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:10:
In file included from include/linux/trace_recursion.h:5:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
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:149:
include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
>> arch/riscv/kernel/probes/kprobes.c:90:22: error: use of undeclared identifier
'PAGE_KERNEL_READ_EXEC'
GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
^
7 warnings and 1 error generated.
vim +/PAGE_KERNEL_READ_EXEC +90 arch/riscv/kernel/probes/kprobes.c
86
87 void *alloc_insn_page(void)
88 {
89 return __vmalloc_node_range(PAGE_SIZE, 1, VMALLOC_START, VMALLOC_END,
> 90 GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
91 VM_FLUSH_RESET_PERMS, NUMA_NO_NODE,
92 __builtin_return_address(0));
93 }
94
---
>> arch/riscv/kernel/probes/kprobes.c:90:22: error: use of
undeclared identifier 'PAGE_KERNEL_READ_EXEC'
GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
is due to
# CONFIG_MMU is not set
--
~Randy
12:38 a.m.
On Sun, 16 May 2021 12:10:01 -0700
Randy Dunlap <rdunlap(a)infradead.org> wrote:
On 5/6/21 3:11 PM, kernel test robot wrote:
> Hi Jisheng,
>
> FYI, the error/warning still remains.
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 38182162b50aa4e970e5997df0a0c4288147a153
> commit: cdd1b2bd358ffda2638fe18ff47191e84e18525f riscv: kprobes: Implement
alloc_insn_page()
> date: 10 days ago
> config: riscv-randconfig-r006-20210506 (attached as .config)
> compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
8f5a2a5836cc8e4c1def2bdeb022e7b496623439)
> 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
> git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout cdd1b2bd358ffda2638fe18ff47191e84e18525f
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp(a)intel.com>
>
> All errors (new ones prefixed by >>):
>
> include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro
'__le16_to_cpu'
> #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
> ^
> In file included from arch/riscv/kernel/probes/kprobes.c:3:
> In file included from include/linux/kprobes.h:29:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:10:
> 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:149:
> include/asm-generic/io.h:572:9: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
> return inl(addr);
> ^~~~~~~~~
> arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl'
> #define inl(c) ({ u32 __v; __io_pbr(); __v =
readl_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
>
~~~~~~~~~~ ^
> arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro
'readl_cpu'
> #define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force
__le32)__raw_readl(c)); __r; })
>
^
> include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro
'__le32_to_cpu'
> #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
> ^
> In file included from arch/riscv/kernel/probes/kprobes.c:3:
> In file included from include/linux/kprobes.h:29:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:10:
> 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:149:
> include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
> outb(value, addr);
> ^~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb'
> #define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
> ~~~~~~~~~~ ^
> arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro
'writeb_cpu'
> #define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
> ^
> In file included from arch/riscv/kernel/probes/kprobes.c:3:
> In file included from include/linux/kprobes.h:29:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:10:
> 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:149:
> include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
> outw(value, addr);
> ^~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw'
> #define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
> ~~~~~~~~~~ ^
> arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro
'writew_cpu'
> #define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v),
(c)))
>
^
> In file included from arch/riscv/kernel/probes/kprobes.c:3:
> In file included from include/linux/kprobes.h:29:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:10:
> 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:149:
> include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null
pointer has undefined behavior [-Wnull-pointer-arithmetic]
> outl(value, addr);
> ^~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl'
> #define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c)));
__io_paw(); })
> ~~~~~~~~~~ ^
> arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro
'writel_cpu'
> #define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v),
(c)))
>
^
> In file included from arch/riscv/kernel/probes/kprobes.c:3:
> In file included from include/linux/kprobes.h:29:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:10:
> 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:149:
> include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
> return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
> ~~~~~~~~~~ ^
>>> arch/riscv/kernel/probes/kprobes.c:90:22: error: use of undeclared
identifier 'PAGE_KERNEL_READ_EXEC'
> GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
> ^
> 7 warnings and 1 error generated.
>
>
> vim +/PAGE_KERNEL_READ_EXEC +90 arch/riscv/kernel/probes/kprobes.c
>
> 86
> 87 void *alloc_insn_page(void)
> 88 {
> 89 return __vmalloc_node_range(PAGE_SIZE, 1, VMALLOC_START, VMALLOC_END,
> > 90 GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
> 91 VM_FLUSH_RESET_PERMS, NUMA_NO_NODE,
> 92 __builtin_return_address(0));
> 93 }
> 94
>
> ---
>>> arch/riscv/kernel/probes/kprobes.c:90:22: error: use of undeclared
identifier 'PAGE_KERNEL_READ_EXEC'
> GFP_KERNEL, PAGE_KERNEL_READ_EXEC,
is due to
# CONFIG_MMU is not set
I have sent out patch to fix this isue:
http://lists.infradead.org/pipermail/linux-riscv/2021-May/006291.html
thanks
491
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participants (3)
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Jisheng Zhang -
kernel test robot -
Randy Dunlap