Messages in this thread |  | | Date | Mon, 18 Apr 2022 05:45:36 +0800 | From | kernel test robot <> | Subject | arch/x86/kernel/traps.c:248:17: error: implicit declaration of function '__warn'; did you mean 'pr_warn'? |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a1901b464e7e3e28956ae7423db2847dbbfb5be8 commit: 991625f3dd2cbc4b787deb0213e2bcf8fa264b21 x86/ibt: Add IBT feature, MSR and #CP handling date: 5 weeks ago config: x86_64-buildonly-randconfig-r006-20220418 (https://download.01.org/0day-ci/archive/20220418/202204180524.7PXohDtU-lkp@intel.com/config) compiler: gcc-11 (Debian 11.2.0-19) 11.2.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=991625f3dd2cbc4b787deb0213e2bcf8fa264b21 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 991625f3dd2cbc4b787deb0213e2bcf8fa264b21 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
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 >>):
arch/x86/kernel/traps.c: In function '__exc_control_protection': >> arch/x86/kernel/traps.c:248:17: error: implicit declaration of function '__warn'; did you mean 'pr_warn'? [-Werror=implicit-function-declaration] 248 | __warn(__FILE__, __LINE__, (void *)regs->ip, TAINT_WARN, regs, NULL); | ^~~~~~ | pr_warn cc1: some warnings being treated as errors
vim +248 arch/x86/kernel/traps.c
229 230 DEFINE_IDTENTRY_ERRORCODE(exc_control_protection) 231 { 232 if (!cpu_feature_enabled(X86_FEATURE_IBT)) { 233 pr_err("Unexpected #CP\n"); 234 BUG(); 235 } 236 237 if (WARN_ON_ONCE(user_mode(regs) || (error_code & CP_EC) != CP_ENDBR)) 238 return; 239 240 if (unlikely(regs->ip == (unsigned long)&ibt_selftest_ip)) { 241 regs->ax = 0; 242 return; 243 } 244 245 pr_err("Missing ENDBR: %pS\n", (void *)instruction_pointer(regs)); 246 if (!ibt_fatal) { 247 printk(KERN_DEFAULT CUT_HERE); > 248 __warn(__FILE__, __LINE__, (void *)regs->ip, TAINT_WARN, regs, NULL); 249 return; 250 } 251 BUG(); 252 } 253
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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