CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Thomas Gleixner <t...@linutronix.de> CC: Borislav Petkov <b...@suse.de>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3123109284176b1532874591f7c81f3837bbdc17 commit: 8a1dc55a3f3ef0a723c3c117a567e7b5dd2c1793 x86/cpu: Sanitize X86_FEATURE_OSPKE date: 10 months ago :::::: branch date: 28 hours ago :::::: commit date: 10 months ago compiler: gcc-11 (Debian 11.2.0-19) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> cppcheck possible warnings: (new ones prefixed by >>, may not real problems) arch/x86/kernel/cpu/common.c:1366:40: warning: Comparing pointers that point to different objects [comparePointers] for (cdev = __x86_cpu_dev_start; cdev < __x86_cpu_dev_end; cdev++) { ^ arch/x86/kernel/cpu/cpu.h:44:36: note: Variable declared here. extern const struct cpu_dev *const __x86_cpu_dev_start[], ^ arch/x86/kernel/cpu/common.c:1366:14: note: Array decayed to pointer here. for (cdev = __x86_cpu_dev_start; cdev < __x86_cpu_dev_end; cdev++) { ^ arch/x86/kernel/cpu/cpu.h:45:15: note: Variable declared here. *const __x86_cpu_dev_end[]; ^ arch/x86/kernel/cpu/common.c:1366:42: note: Array decayed to pointer here. for (cdev = __x86_cpu_dev_start; cdev < __x86_cpu_dev_end; cdev++) { ^ arch/x86/kernel/cpu/common.c:1366:40: note: Comparing pointers that point to different objects for (cdev = __x86_cpu_dev_start; cdev < __x86_cpu_dev_end; cdev++) { ^ >> arch/x86/kernel/cpu/common.c:187:45: warning: Parameter 's' can be declared >> with const [constParameter] static int __init x86_noinvpcid_setup(char *s) ^ >> arch/x86/kernel/cpu/common.c:467:59: warning: Parameter 'c' can be declared >> with const [constParameter] static __always_inline void setup_pku(struct cpuinfo_x86 *c) ^ >> arch/x86/kernel/cpu/mce/core.c:991:2: warning: There is an unknown macro >> here somewhere. Configuration is required. If for_each_possible_cpu is a >> macro then please configure it. [unknownMacro] for_each_possible_cpu(cpu) ^ vim +/s +187 arch/x86/kernel/cpu/common.c 0790c9aad84901c Andy Lutomirski 2017-06-29 186 d12a72b844a49d4 Andy Lutomirski 2016-01-29 @187 static int __init x86_noinvpcid_setup(char *s) d12a72b844a49d4 Andy Lutomirski 2016-01-29 188 { d12a72b844a49d4 Andy Lutomirski 2016-01-29 189 /* noinvpcid doesn't accept parameters */ d12a72b844a49d4 Andy Lutomirski 2016-01-29 190 if (s) d12a72b844a49d4 Andy Lutomirski 2016-01-29 191 return -EINVAL; d12a72b844a49d4 Andy Lutomirski 2016-01-29 192 d12a72b844a49d4 Andy Lutomirski 2016-01-29 193 /* do not emit a message if the feature is not present */ d12a72b844a49d4 Andy Lutomirski 2016-01-29 194 if (!boot_cpu_has(X86_FEATURE_INVPCID)) d12a72b844a49d4 Andy Lutomirski 2016-01-29 195 return 0; d12a72b844a49d4 Andy Lutomirski 2016-01-29 196 d12a72b844a49d4 Andy Lutomirski 2016-01-29 197 setup_clear_cpu_cap(X86_FEATURE_INVPCID); d12a72b844a49d4 Andy Lutomirski 2016-01-29 198 pr_info("noinvpcid: INVPCID feature disabled\n"); d12a72b844a49d4 Andy Lutomirski 2016-01-29 199 return 0; d12a72b844a49d4 Andy Lutomirski 2016-01-29 200 } d12a72b844a49d4 Andy Lutomirski 2016-01-29 201 early_param("noinvpcid", x86_noinvpcid_setup); d12a72b844a49d4 Andy Lutomirski 2016-01-29 202 :::::: The code at line 187 was first introduced by commit :::::: d12a72b844a49d4162f24cefdab30bed3f86730e x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID :::::: TO: Andy Lutomirski <l...@kernel.org> :::::: CC: Ingo Molnar <mi...@kernel.org> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
