* [linux-next:master 3945/3956] mm/secretmem.c:107:6: error: implicit declaration of function 'mlock_future_check'
@ 2021-01-18 0:44 kernel test robot
2021-01-18 8:12 ` Mike Rapoport
0 siblings, 1 reply; 2+ messages in thread
From: kernel test robot @ 2021-01-18 0:44 UTC (permalink / raw)
To: Mike Rapoport
Cc: kbuild-all, clang-built-linux, Linux Memory Management List,
Andrew Morton
[-- Attachment #1: Type: text/plain, Size: 9029 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: b3a3cbdec55b090d22a09f75efb7c7d34cb97f25
commit: 5577d3803e8c46cfe63791e5fd0cb2c782d4db3b [3945/3956] mm: introduce memfd_secret system call to create "secret" memory areas
config: riscv-randconfig-r003-20210118 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bfd75bdf3fd62d4f5e7028d4122f9ffa517f2a09)
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/next/linux-next.git/commit/?id=5577d3803e8c46cfe63791e5fd0cb2c782d4db3b
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 5577d3803e8c46cfe63791e5fd0cb2c782d4db3b
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:564:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inw(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:56:76: note: expanded from macro 'inw'
#define inw(c) ({ u16 __v; __io_pbr(); __v = readw_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:88:76: note: expanded from macro 'readw_cpu'
#define readw_cpu(c) ({ u16 __r = le16_to_cpu((__force __le16)__raw_readw(c)); __r; })
^
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 mm/secretmem.c:14:
In file included from include/linux/pagemap.h:11:
In file included from include/linux/highmem.h:10:
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 mm/secretmem.c:14:
In file included from include/linux/pagemap.h:11:
In file included from include/linux/highmem.h:10:
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 mm/secretmem.c:14:
In file included from include/linux/pagemap.h:11:
In file included from include/linux/highmem.h:10:
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 mm/secretmem.c:14:
In file included from include/linux/pagemap.h:11:
In file included from include/linux/highmem.h:10:
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 mm/secretmem.c:14:
In file included from include/linux/pagemap.h:11:
In file included from include/linux/highmem.h:10:
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;
~~~~~~~~~~ ^
>> mm/secretmem.c:107:6: error: implicit declaration of function 'mlock_future_check' [-Werror,-Wimplicit-function-declaration]
if (mlock_future_check(vma->vm_mm, vma->vm_flags | VM_LOCKED, len))
^
7 warnings and 1 error generated.
vim +/mlock_future_check +107 mm/secretmem.c
99
100 static int secretmem_mmap(struct file *file, struct vm_area_struct *vma)
101 {
102 unsigned long len = vma->vm_end - vma->vm_start;
103
104 if ((vma->vm_flags & (VM_SHARED | VM_MAYSHARE)) == 0)
105 return -EINVAL;
106
> 107 if (mlock_future_check(vma->vm_mm, vma->vm_flags | VM_LOCKED, len))
108 return -EAGAIN;
109
110 vma->vm_ops = &secretmem_vm_ops;
111 vma->vm_flags |= VM_LOCKED;
112
113 return 0;
114 }
115
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 25701 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [linux-next:master 3945/3956] mm/secretmem.c:107:6: error: implicit declaration of function 'mlock_future_check'
2021-01-18 0:44 [linux-next:master 3945/3956] mm/secretmem.c:107:6: error: implicit declaration of function 'mlock_future_check' kernel test robot
@ 2021-01-18 8:12 ` Mike Rapoport
0 siblings, 0 replies; 2+ messages in thread
From: Mike Rapoport @ 2021-01-18 8:12 UTC (permalink / raw)
To: kernel test robot
Cc: kbuild-all, clang-built-linux, Linux Memory Management List,
Andrew Morton
On Mon, Jan 18, 2021 at 08:44:40AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: b3a3cbdec55b090d22a09f75efb7c7d34cb97f25
> commit: 5577d3803e8c46cfe63791e5fd0cb2c782d4db3b [3945/3956] mm: introduce memfd_secret system call to create "secret" memory areas
> config: riscv-randconfig-r003-20210118 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bfd75bdf3fd62d4f5e7028d4122f9ffa517f2a09)
> 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/next/linux-next.git/commit/?id=5577d3803e8c46cfe63791e5fd0cb2c782d4db3b
> git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> git fetch --no-tags linux-next master
> git checkout 5577d3803e8c46cfe63791e5fd0cb2c782d4db3b
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
> ^
> In file included from mm/secretmem.c:14:
> In file included from include/linux/pagemap.h:11:
> In file included from include/linux/highmem.h:10:
> 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;
> ~~~~~~~~~~ ^
> >> mm/secretmem.c:107:6: error: implicit declaration of function 'mlock_future_check' [-Werror,-Wimplicit-function-declaration]
> if (mlock_future_check(vma->vm_mm, vma->vm_flags | VM_LOCKED, len))
> ^
> 7 warnings and 1 error generated.
>
>
> vim +/mlock_future_check +107 mm/secretmem.c
>
> 99
> 100 static int secretmem_mmap(struct file *file, struct vm_area_struct *vma)
> 101 {
> 102 unsigned long len = vma->vm_end - vma->vm_start;
> 103
> 104 if ((vma->vm_flags & (VM_SHARED | VM_MAYSHARE)) == 0)
> 105 return -EINVAL;
> 106
> > 107 if (mlock_future_check(vma->vm_mm, vma->vm_flags | VM_LOCKED, len))
> 108 return -EAGAIN;
> 109
> 110 vma->vm_ops = &secretmem_vm_ops;
> 111 vma->vm_flags |= VM_LOCKED;
> 112
> 113 return 0;
> 114 }
> 115
>
The patch vs v5.11-rc3-mmots-2021-01-12-02-00 below should fix this:
From 51b925943bcf65b82d2ba3b30082a0665681585c Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Mon, 18 Jan 2021 10:03:29 +0200
Subject: [PATCH] riscv/Kconfig: make direct map manipulation options depend on MMU
ARCH_HAS_SET_DIRECT_MAP and ARCH_HAS_SET_MEMORY configuration options have
no meaning when CONFIG_MMU is disabled and there is no point to enable them
for the nommu case.
Add an explicit dependency on MMU for these options.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
arch/riscv/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 2ef05ef921b5..dd295dba8a8d 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -25,8 +25,8 @@ config RISCV
select ARCH_HAS_KCOV
select ARCH_HAS_MMIOWB
select ARCH_HAS_PTE_SPECIAL
- select ARCH_HAS_SET_DIRECT_MAP
- select ARCH_HAS_SET_MEMORY
+ select ARCH_HAS_SET_DIRECT_MAP if MMU
+ select ARCH_HAS_SET_MEMORY if MMU
select ARCH_HAS_STRICT_KERNEL_RWX if MMU
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
--
2.28.0
--
Sincerely yours,
Mike.
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2021-01-18 0:44 [linux-next:master 3945/3956] mm/secretmem.c:107:6: error: implicit declaration of function 'mlock_future_check' kernel test robot
2021-01-18 8:12 ` Mike Rapoport
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