Hi Joe, [auto build test WARNING on drm/drm-next] [also build test WARNING on next-20160318] [cannot apply to v4.5] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Joe-Perches/gpu-drm-Use-u64_to_user_pointer/20160319-012749 base: git://people.freedesktop.org/~airlied/linux.git drm-next config: mips-allmodconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=mips All warnings (new ones prefixed by >>): In file included from include/linux/uaccess.h:5:0, from include/linux/highmem.h:8, from include/drm/drmP.h:40, from drivers/gpu/drm/vc4/vc4_drv.h:9, from drivers/gpu/drm/vc4/vc4_bo.c:21: drivers/gpu/drm/vc4/vc4_bo.c: In function 'vc4_create_shader_bo_ioctl': drivers/gpu/drm/vc4/vc4_bo.c:503:7: error: implicit declaration of function 'u64_to_user_ptr' [-Werror=implicit-function-declaration] u64_to_user_ptr(args->data), ^ arch/mips/include/asm/uaccess.h:1161:15: note: in definition of macro 'copy_from_user' __cu_from = (from); \ ^ >> arch/mips/include/asm/uaccess.h:1161:12: warning: assignment makes pointer from integer without a cast [-Wint-conversion] __cu_from = (from); \ ^ drivers/gpu/drm/vc4/vc4_bo.c:502:6: note: in expansion of macro 'copy_from_user' if (copy_from_user(bo->base.vaddr, ^ cc1: some warnings being treated as errors -- In file included from arch/mips/include/asm/module.h:6:0, from include/linux/module.h:24, from drivers/gpu/drm/vc4/vc4_gem.c:24: drivers/gpu/drm/vc4/vc4_gem.c: In function 'vc4_get_hang_state_ioctl': drivers/gpu/drm/vc4/vc4_gem.c:123:19: error: implicit declaration of function 'u64_to_user_ptr' [-Werror=implicit-function-declaration] if (copy_to_user(u64_to_user_ptr(get_state->bo), ^ arch/mips/include/asm/uaccess.h:930:13: note: in definition of macro 'copy_to_user' __cu_to = (to); \ ^ arch/mips/include/asm/uaccess.h:930:10: warning: assignment makes pointer from integer without a cast [-Wint-conversion] __cu_to = (to); \ ^ drivers/gpu/drm/vc4/vc4_gem.c:123:6: note: in expansion of macro 'copy_to_user' if (copy_to_user(u64_to_user_ptr(get_state->bo), ^ drivers/gpu/drm/vc4/vc4_gem.c: In function 'vc4_cl_lookup_bos': >> arch/mips/include/asm/uaccess.h:1161:12: warning: assignment makes pointer from integer without a cast [-Wint-conversion] __cu_from = (from); \ ^ drivers/gpu/drm/vc4/vc4_gem.c:552:8: note: in expansion of macro 'copy_from_user' ret = copy_from_user(handles, ^ drivers/gpu/drm/vc4/vc4_gem.c: In function 'vc4_get_bcl': >> arch/mips/include/asm/uaccess.h:1161:12: warning: assignment makes pointer from integer without a cast [-Wint-conversion] __cu_from = (from); \ ^ drivers/gpu/drm/vc4/vc4_gem.c:626:6: note: in expansion of macro 'copy_from_user' if (copy_from_user(bin, ^ >> arch/mips/include/asm/uaccess.h:1161:12: warning: assignment makes pointer from integer without a cast [-Wint-conversion] __cu_from = (from); \ ^ drivers/gpu/drm/vc4/vc4_gem.c:633:6: note: in expansion of macro 'copy_from_user' if (copy_from_user(exec->shader_rec_u, ^ >> arch/mips/include/asm/uaccess.h:1161:12: warning: assignment makes pointer from integer without a cast [-Wint-conversion] __cu_from = (from); \ ^ drivers/gpu/drm/vc4/vc4_gem.c:640:6: note: in expansion of macro 'copy_from_user' if (copy_from_user(exec->uniforms_u, ^ cc1: some warnings being treated as errors vim +1161 arch/mips/include/asm/uaccess.h ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1145 * ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1146 * Copy data from user space to kernel space. ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1147 * ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1148 * Returns number of bytes that could not be copied. ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1149 * On success, this will be zero. ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1150 * ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1151 * If some data could not be copied, this function will pad the copied ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1152 * data to the requested size using zero bytes. ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1153 */ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1154 #define copy_from_user(to, from, n) \ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1155 ({ \ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1156 void *__cu_to; \ fe00f943 include/asm-mips/uaccess.h Ralf Baechle 2005-03-01 1157 const void __user *__cu_from; \ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1158 long __cu_len; \ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1159 \ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1160 __cu_to = (to); \ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 @1161 __cu_from = (from); \ ^1da177e include/asm-mips/uaccess.h Linus Torvalds 2005-04-16 1162 __cu_len = (n); \ 12060666 arch/mips/include/asm/uaccess.h Paul Burton 2015-05-24 1163 if (eva_kernel_access()) { \ 05c65160 arch/mips/include/asm/uaccess.h Markos Chandras 2013-12-11 1164 __cu_len = __invoke_copy_from_kernel(__cu_to, \ 05c65160 arch/mips/include/asm/uaccess.h Markos Chandras 2013-12-11 1165 __cu_from, \ 05c65160 arch/mips/include/asm/uaccess.h Markos Chandras 2013-12-11 1166 __cu_len); \ 05c65160 arch/mips/include/asm/uaccess.h Markos Chandras 2013-12-11 1167 } else { \ ef41f460 arch/mips/include/asm/uaccess.h Ralf Baechle 2009-04-28 1168 if (access_ok(VERIFY_READ, __cu_from, __cu_len)) { \ ef41f460 arch/mips/include/asm/uaccess.h Ralf Baechle 2009-04-28 1169 might_fault(); \ :::::: The code at line 1161 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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