Messages in this thread | | | Date | Thu, 8 Jul 2021 05:09:01 +0800 | From | kernel test robot <> | Subject | [hch-misc:m68k-set_fs 5/6] mm/maccess.c:31:9: sparse: sparse: incorrect type in initializer (different address spaces) |
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tree: git://git.infradead.org/users/hch/misc.git m68k-set_fs head: dc7590aca76df8c1ead0ebf59e3787d5555779d6 commit: bd01d8a7268b406331c39707183b2c42626eff8e [5/6] m68k: provide __{get,put}_kernel_nofault config: m68k-randconfig-s031-20210707 (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty git remote add hch-misc git://git.infradead.org/users/hch/misc.git git fetch --no-tags hch-misc m68k-set_fs git checkout bd01d8a7268b406331c39707183b2c42626eff8e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=m68k
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>) >> mm/maccess.c:31:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__gu_ptr @@ got unsigned long long [usertype] *__gk_src @@ mm/maccess.c:31:9: sparse: expected void const [noderef] __user *__gu_ptr mm/maccess.c:31:9: sparse: got unsigned long long [usertype] *__gk_src >> mm/maccess.c:32:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__gu_ptr @@ got unsigned int [usertype] *__gk_src @@ mm/maccess.c:32:9: sparse: expected void const [noderef] __user *__gu_ptr mm/maccess.c:32:9: sparse: got unsigned int [usertype] *__gk_src >> mm/maccess.c:33:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__gu_ptr @@ got unsigned short [usertype] *__gk_src @@ mm/maccess.c:33:9: sparse: expected void const [noderef] __user *__gu_ptr mm/maccess.c:33:9: sparse: got unsigned short [usertype] *__gk_src >> mm/maccess.c:34:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__gu_ptr @@ got unsigned char [usertype] *__gk_src @@ mm/maccess.c:34:9: sparse: expected void const [noderef] __user *__gu_ptr mm/maccess.c:34:9: sparse: got unsigned char [usertype] *__gk_src >> mm/maccess.c:54:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__pu_ptr @@ got unsigned long long [usertype] *__pk_dst @@ mm/maccess.c:54:9: sparse: expected void const [noderef] __user *__pu_ptr mm/maccess.c:54:9: sparse: got unsigned long long [usertype] *__pk_dst >> mm/maccess.c:55:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__pu_ptr @@ got unsigned int [usertype] *__pk_dst @@ mm/maccess.c:55:9: sparse: expected void const [noderef] __user *__pu_ptr mm/maccess.c:55:9: sparse: got unsigned int [usertype] *__pk_dst >> mm/maccess.c:56:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__pu_ptr @@ got unsigned short [usertype] *__pk_dst @@ mm/maccess.c:56:9: sparse: expected void const [noderef] __user *__pu_ptr mm/maccess.c:56:9: sparse: got unsigned short [usertype] *__pk_dst >> mm/maccess.c:57:9: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__pu_ptr @@ got unsigned char [usertype] *__pk_dst @@ mm/maccess.c:57:9: sparse: expected void const [noderef] __user *__pu_ptr mm/maccess.c:57:9: sparse: got unsigned char [usertype] *__pk_dst mm/maccess.c:76:17: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__gu_ptr @@ got unsigned char [usertype] *__gk_src @@ mm/maccess.c:76:17: sparse: expected void const [noderef] __user *__gu_ptr mm/maccess.c:76:17: sparse: got unsigned char [usertype] *__gk_src
vim +31 mm/maccess.c
b58294ead14cde Christoph Hellwig 2020-06-08 16 fe557319aa06c2 Christoph Hellwig 2020-06-17 17 #define copy_from_kernel_nofault_loop(dst, src, len, type, err_label) \ b58294ead14cde Christoph Hellwig 2020-06-08 18 while (len >= sizeof(type)) { \ b58294ead14cde Christoph Hellwig 2020-06-08 19 __get_kernel_nofault(dst, src, type, err_label); \ b58294ead14cde Christoph Hellwig 2020-06-08 20 dst += sizeof(type); \ b58294ead14cde Christoph Hellwig 2020-06-08 21 src += sizeof(type); \ b58294ead14cde Christoph Hellwig 2020-06-08 22 len -= sizeof(type); \ b58294ead14cde Christoph Hellwig 2020-06-08 23 } b58294ead14cde Christoph Hellwig 2020-06-08 24 fe557319aa06c2 Christoph Hellwig 2020-06-17 25 long copy_from_kernel_nofault(void *dst, const void *src, size_t size) b58294ead14cde Christoph Hellwig 2020-06-08 26 { fe557319aa06c2 Christoph Hellwig 2020-06-17 27 if (!copy_from_kernel_nofault_allowed(src, size)) 2a71e81d321987 Christoph Hellwig 2020-06-08 28 return -ERANGE; b58294ead14cde Christoph Hellwig 2020-06-08 29 b58294ead14cde Christoph Hellwig 2020-06-08 30 pagefault_disable(); fe557319aa06c2 Christoph Hellwig 2020-06-17 @31 copy_from_kernel_nofault_loop(dst, src, size, u64, Efault); fe557319aa06c2 Christoph Hellwig 2020-06-17 @32 copy_from_kernel_nofault_loop(dst, src, size, u32, Efault); fe557319aa06c2 Christoph Hellwig 2020-06-17 @33 copy_from_kernel_nofault_loop(dst, src, size, u16, Efault); fe557319aa06c2 Christoph Hellwig 2020-06-17 @34 copy_from_kernel_nofault_loop(dst, src, size, u8, Efault); b58294ead14cde Christoph Hellwig 2020-06-08 35 pagefault_enable(); b58294ead14cde Christoph Hellwig 2020-06-08 36 return 0; b58294ead14cde Christoph Hellwig 2020-06-08 37 Efault: b58294ead14cde Christoph Hellwig 2020-06-08 38 pagefault_enable(); b58294ead14cde Christoph Hellwig 2020-06-08 39 return -EFAULT; b58294ead14cde Christoph Hellwig 2020-06-08 40 } fe557319aa06c2 Christoph Hellwig 2020-06-17 41 EXPORT_SYMBOL_GPL(copy_from_kernel_nofault); b58294ead14cde Christoph Hellwig 2020-06-08 42 fe557319aa06c2 Christoph Hellwig 2020-06-17 43 #define copy_to_kernel_nofault_loop(dst, src, len, type, err_label) \ b58294ead14cde Christoph Hellwig 2020-06-08 44 while (len >= sizeof(type)) { \ b58294ead14cde Christoph Hellwig 2020-06-08 45 __put_kernel_nofault(dst, src, type, err_label); \ b58294ead14cde Christoph Hellwig 2020-06-08 46 dst += sizeof(type); \ b58294ead14cde Christoph Hellwig 2020-06-08 47 src += sizeof(type); \ b58294ead14cde Christoph Hellwig 2020-06-08 48 len -= sizeof(type); \ b58294ead14cde Christoph Hellwig 2020-06-08 49 } b58294ead14cde Christoph Hellwig 2020-06-08 50 fe557319aa06c2 Christoph Hellwig 2020-06-17 51 long copy_to_kernel_nofault(void *dst, const void *src, size_t size) b58294ead14cde Christoph Hellwig 2020-06-08 52 { b58294ead14cde Christoph Hellwig 2020-06-08 53 pagefault_disable(); fe557319aa06c2 Christoph Hellwig 2020-06-17 @54 copy_to_kernel_nofault_loop(dst, src, size, u64, Efault); fe557319aa06c2 Christoph Hellwig 2020-06-17 @55 copy_to_kernel_nofault_loop(dst, src, size, u32, Efault); fe557319aa06c2 Christoph Hellwig 2020-06-17 @56 copy_to_kernel_nofault_loop(dst, src, size, u16, Efault); fe557319aa06c2 Christoph Hellwig 2020-06-17 @57 copy_to_kernel_nofault_loop(dst, src, size, u8, Efault); b58294ead14cde Christoph Hellwig 2020-06-08 58 pagefault_enable(); b58294ead14cde Christoph Hellwig 2020-06-08 59 return 0; b58294ead14cde Christoph Hellwig 2020-06-08 60 Efault: b58294ead14cde Christoph Hellwig 2020-06-08 61 pagefault_enable(); b58294ead14cde Christoph Hellwig 2020-06-08 62 return -EFAULT; b58294ead14cde Christoph Hellwig 2020-06-08 63 } b58294ead14cde Christoph Hellwig 2020-06-08 64
:::::: The code at line 31 was first introduced by commit :::::: fe557319aa06c23cffc9346000f119547e0f289a maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
:::::: TO: Christoph Hellwig <hch@lst.de> :::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
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