All of lore.kernel.org
 help / color / mirror / Atom feed
From: kernel test robot <lkp@intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org
Subject: arch/x86/kernel/traps.c:248:17: error: implicit declaration of function '__warn'; did you mean 'pr_warn'?
Date: Mon, 18 Apr 2022 05:45:36 +0800	[thread overview]
Message-ID: <202204180524.7PXohDtU-lkp@intel.com> (raw)

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

                 reply	other threads:[~2022-04-17 21:46 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=202204180524.7PXohDtU-lkp@intel.com \
    --to=lkp@intel.com \
    --cc=kbuild-all@lists.01.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterz@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.