Messages in this thread |  | | Date | Mon, 18 Apr 2022 02:31:31 +0800 | From | kernel test robot <> | Subject | [kees:for-next/randstruct 5/5] include/linux/cred.h:254:17: error: no member named 'non_rcu' in 'struct cred' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/randstruct head: 0f9614862c554c424c7b099d2cf84a3ecd755357 commit: 0f9614862c554c424c7b099d2cf84a3ecd755357 [5/5] randstruct: Enable Clang support config: powerpc64-allmodconfig (https://download.01.org/0day-ci/archive/20220418/202204180214.X2Y1kbZ6-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ef94609d6ebe981767788e6877b0b3b731d425af) 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 powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=0f9614862c554c424c7b099d2cf84a3ecd755357 git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git git fetch --no-tags kees for-next/randstruct git checkout 0f9614862c554c424c7b099d2cf84a3ecd755357 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc prepare
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 >>):
scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr] scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr] scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:10: >> include/linux/cred.h:254:17: error: no member named 'non_rcu' in 'struct cred' nonconst_cred->non_rcu = 0; ~~~~~~~~~~~~~ ^ include/linux/cred.h:266:17: error: no member named 'non_rcu' in 'struct cred' nonconst_cred->non_rcu = 0; ~~~~~~~~~~~~~ ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: >> include/linux/fs.h:2896:17: error: no member named 'i_nlink' in 'struct inode' return !inode->i_nlink || inode_unhashed(inode); ~~~~~ ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: include/linux/compat.h:424:22: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds] case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3]; ^ ~ arch/powerpc/include/uapi/asm/signal.h:18:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: include/linux/compat.h:424:10: warning: array index 7 is past the end of the array (which contains 2 elements) [-Warray-bounds] case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3]; ^ ~ include/linux/compat.h:131:2: note: array 'sig' declared here compat_sigset_word sig[_COMPAT_NSIG_WORDS]; ^ include/linux/compat.h:424:42: warning: array index 6 is past the end of the array (which contains 2 elements) [-Warray-bounds] case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3]; ^ ~ include/linux/compat.h:131:2: note: array 'sig' declared here compat_sigset_word sig[_COMPAT_NSIG_WORDS]; ^ include/linux/compat.h:424:53: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds] case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3]; ^ ~ arch/powerpc/include/uapi/asm/signal.h:18:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: include/linux/compat.h:426:22: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds] case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2]; ^ ~ arch/powerpc/include/uapi/asm/signal.h:18:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: include/linux/compat.h:426:10: warning: array index 5 is past the end of the array (which contains 2 elements) [-Warray-bounds] case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2]; ^ ~ include/linux/compat.h:131:2: note: array 'sig' declared here compat_sigset_word sig[_COMPAT_NSIG_WORDS]; ^ include/linux/compat.h:426:42: warning: array index 4 is past the end of the array (which contains 2 elements) [-Warray-bounds] case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2]; ^ ~ include/linux/compat.h:131:2: note: array 'sig' declared here compat_sigset_word sig[_COMPAT_NSIG_WORDS]; ^ include/linux/compat.h:426:53: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds] case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2]; ^ ~ arch/powerpc/include/uapi/asm/signal.h:18:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: include/linux/compat.h:428:22: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds] case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1]; ^ ~ arch/powerpc/include/uapi/asm/signal.h:18:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: include/linux/compat.h:428:10: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds] case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1]; ^ ~ include/linux/compat.h:131:2: note: array 'sig' declared here compat_sigset_word sig[_COMPAT_NSIG_WORDS]; ^ include/linux/compat.h:428:42: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds] case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1]; ^ ~ include/linux/compat.h:131:2: note: array 'sig' declared here compat_sigset_word sig[_COMPAT_NSIG_WORDS]; ^ include/linux/compat.h:428:53: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds] case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1]; ^ ~ arch/powerpc/include/uapi/asm/signal.h:18:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ In file included from arch/powerpc/kernel/asm-offsets.c:19: include/linux/mman.h:157:9: warning: division by zero is undefined [-Wdivision-by-zero] _calc_vm_trans(flags, MAP_LOCKED, VM_LOCKED ) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans' : ((x) & (bit1)) / ((bit1) / (bit2)))) ^ ~~~~~~~~~~~~~~~~~ include/linux/mman.h:158:9: warning: division by zero is undefined [-Wdivision-by-zero] _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans' : ((x) & (bit1)) / ((bit1) / (bit2)))) ^ ~~~~~~~~~~~~~~~~~ 14 warnings and 3 errors generated. make[2]: *** [scripts/Makefile.build:120: arch/powerpc/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1195: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:219: __sub-make] Error 2 make: Target 'prepare' not remade because of errors.
vim +254 include/linux/cred.h
f1752eec6145c9 David Howells 2008-11-14 234 f1752eec6145c9 David Howells 2008-11-14 235 /** f1752eec6145c9 David Howells 2008-11-14 236 * get_cred - Get a reference on a set of credentials f1752eec6145c9 David Howells 2008-11-14 237 * @cred: The credentials to reference f1752eec6145c9 David Howells 2008-11-14 238 * f1752eec6145c9 David Howells 2008-11-14 239 * Get a reference on the specified set of credentials. The caller must f06bc03339ad4c NeilBrown 2018-12-03 240 * release the reference. If %NULL is passed, it is returned with no action. 98870ab0a5a3f1 David Howells 2008-11-14 241 * 98870ab0a5a3f1 David Howells 2008-11-14 242 * This is used to deal with a committed set of credentials. Although the 98870ab0a5a3f1 David Howells 2008-11-14 243 * pointer is const, this will temporarily discard the const and increment the 98870ab0a5a3f1 David Howells 2008-11-14 244 * usage count. The purpose of this is to attempt to catch at compile time the 98870ab0a5a3f1 David Howells 2008-11-14 245 * accidental alteration of a set of credentials that should be considered 98870ab0a5a3f1 David Howells 2008-11-14 246 * immutable. f1752eec6145c9 David Howells 2008-11-14 247 */ d84f4f992cbd76 David Howells 2008-11-14 248 static inline const struct cred *get_cred(const struct cred *cred) f1752eec6145c9 David Howells 2008-11-14 249 { 1c388ad054fb1e Paul Menage 2009-07-17 250 struct cred *nonconst_cred = (struct cred *) cred; f06bc03339ad4c NeilBrown 2018-12-03 251 if (!cred) f06bc03339ad4c NeilBrown 2018-12-03 252 return cred; e0e817392b9acf David Howells 2009-09-02 253 validate_creds(cred); d7852fbd0f0423 Linus Torvalds 2019-07-11 @254 nonconst_cred->non_rcu = 0; 1c388ad054fb1e Paul Menage 2009-07-17 255 return get_new_cred(nonconst_cred); f1752eec6145c9 David Howells 2008-11-14 256 } f1752eec6145c9 David Howells 2008-11-14 257
:::::: The code at line 254 was first introduced by commit :::::: d7852fbd0f0423937fa287a598bfde188bb68c22 access: avoid the RCU grace period for the temporary subjective credentials
:::::: TO: Linus Torvalds <torvalds@linux-foundation.org> :::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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