tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git untested-uaccess head: e4c5cc79ec8eab6bc3e74d9994b33f368f137223 commit: 8d6d3f932311964950d994b1edfade9e952580f6 [53/79] mn10300: switch to RAW_COPY_USER config: mn10300-asb2364_defconfig (attached as .config) compiler: am33_2.0-linux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 8d6d3f932311964950d994b1edfade9e952580f6 # save the attached .config to linux build tree make.cross ARCH=mn10300 All error/warnings (new ones prefixed by >>): arch/mn10300/lib/checksum.c: In function 'csum_partial_copy': >> arch/mn10300/lib/checksum.c:56:2: warning: ignoring return value of 'copy_from_user', declared with attribute warn_unused_result [-Wunused-result] copy_from_user(dst, src, len); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/linkage.h:6:0, from include/linux/kernel.h:6, from include/linux/list.h:8, from include/linux/module.h:9, from arch/mn10300/kernel/mn10300_ksyms.c:11: >> arch/mn10300/kernel/mn10300_ksyms.c:29:15: error: '__generic_copy_from_user' undeclared here (not in a function) EXPORT_SYMBOL(__generic_copy_from_user); ^ include/linux/export.h:65:16: note: in definition of macro '___EXPORT_SYMBOL' extern typeof(sym) sym; \ ^~~ arch/mn10300/kernel/mn10300_ksyms.c:29:1: note: in expansion of macro 'EXPORT_SYMBOL' EXPORT_SYMBOL(__generic_copy_from_user); ^~~~~~~~~~~~~ >> arch/mn10300/kernel/mn10300_ksyms.c:30:15: error: '__generic_copy_to_user' undeclared here (not in a function) EXPORT_SYMBOL(__generic_copy_to_user); ^ include/linux/export.h:65:16: note: in definition of macro '___EXPORT_SYMBOL' extern typeof(sym) sym; \ ^~~ arch/mn10300/kernel/mn10300_ksyms.c:30:1: note: in expansion of macro 'EXPORT_SYMBOL' EXPORT_SYMBOL(__generic_copy_to_user); ^~~~~~~~~~~~~ vim +/__generic_copy_from_user +29 arch/mn10300/kernel/mn10300_ksyms.c b920de1b7 David Howells 2008-02-08 5 * b920de1b7 David Howells 2008-02-08 6 * This program is free software; you can redistribute it and/or b920de1b7 David Howells 2008-02-08 7 * modify it under the terms of the GNU General Public Licence b920de1b7 David Howells 2008-02-08 8 * as published by the Free Software Foundation; either version b920de1b7 David Howells 2008-02-08 9 * 2 of the Licence, or (at your option) any later version. b920de1b7 David Howells 2008-02-08 10 */ b920de1b7 David Howells 2008-02-08 @11 #include <linux/module.h> 7c0f6ba68 Linus Torvalds 2016-12-24 12 #include <linux/uaccess.h> 7fc7228c0 David Howells 2008-07-04 13 #include <asm/pgtable.h> b920de1b7 David Howells 2008-02-08 14 b920de1b7 David Howells 2008-02-08 15 7fc7228c0 David Howells 2008-07-04 16 EXPORT_SYMBOL(empty_zero_page); 7fc7228c0 David Howells 2008-07-04 17 b920de1b7 David Howells 2008-02-08 18 EXPORT_SYMBOL(change_bit); b920de1b7 David Howells 2008-02-08 19 EXPORT_SYMBOL(test_and_change_bit); b920de1b7 David Howells 2008-02-08 20 b920de1b7 David Howells 2008-02-08 21 EXPORT_SYMBOL(memcpy); b920de1b7 David Howells 2008-02-08 22 EXPORT_SYMBOL(memmove); b920de1b7 David Howells 2008-02-08 23 EXPORT_SYMBOL(memset); b920de1b7 David Howells 2008-02-08 24 b920de1b7 David Howells 2008-02-08 25 EXPORT_SYMBOL(strncpy_from_user); b920de1b7 David Howells 2008-02-08 26 EXPORT_SYMBOL(__strncpy_from_user); b920de1b7 David Howells 2008-02-08 27 EXPORT_SYMBOL(clear_user); b920de1b7 David Howells 2008-02-08 28 EXPORT_SYMBOL(__clear_user); b920de1b7 David Howells 2008-02-08 @29 EXPORT_SYMBOL(__generic_copy_from_user); b920de1b7 David Howells 2008-02-08 @30 EXPORT_SYMBOL(__generic_copy_to_user); b920de1b7 David Howells 2008-02-08 31 EXPORT_SYMBOL(strnlen_user); b920de1b7 David Howells 2008-02-08 32 b920de1b7 David Howells 2008-02-08 33 extern u64 __ashrdi3(u64, unsigned); :::::: The code at line 29 was first introduced by commit :::::: b920de1b77b72ca9432ac3f97edb26541e65e5dd mn10300: add the MN10300/AM33 architecture to the kernel :::::: TO: David Howells <dhowells@xxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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