linux-kernel - [peterz-queue:x86/depthtracking 58/59] kernel/trace/trace_selftest.c:790:13: error: expected string literal before 'CALL_DEPTH

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Message-ID: <202208221703.4igdz4z1-lkp@intel.com>
Date:   Mon, 22 Aug 2022 17:08:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [peterz-queue:x86/depthtracking 58/59]
 kernel/trace/trace_selftest.c:790:13: error: expected string literal before
 'CALL_DEPTH_ACCOUNT'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/depthtracking
head:   ae26e9ad74a5c4b43403db71e820c1a8f17ba16b
commit: 52c5b56ceb6da71d41154f662801ce6323a2fb77 [58/59] x86/ftrace: Make it call depth tracking aware
config: s390-allmodconfig
compiler: s390-linux-gcc (GCC) 12.1.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=52c5b56ceb6da71d41154f662801ce6323a2fb77
        git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue x86/depthtracking
        git checkout 52c5b56ceb6da71d41154f662801ce6323a2fb77
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   kernel/trace/trace.c: In function 'trace_check_vprintf':
   kernel/trace/trace.c:3846:17: warning: function 'trace_check_vprintf' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    3846 |                 trace_seq_vprintf(&iter->seq, iter->fmt, ap);
         |                 ^~~~~~~~~~~~~~~~~
   kernel/trace/trace.c:3913:17: warning: function 'trace_check_vprintf' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    3913 |                 trace_seq_vprintf(&iter->seq, p, ap);
         |                 ^~~~~~~~~~~~~~~~~
   In file included from kernel/trace/trace.c:8672:
   kernel/trace/trace_selftest.c: In function 'trace_direct_tramp':
>> kernel/trace/trace_selftest.c:790:13: error: expected string literal before 'CALL_DEPTH_ACCOUNT'
     790 |         asm(CALL_DEPTH_ACCOUNT);
         |             ^~~~~~~~~~~~~~~~~~


vim +/CALL_DEPTH_ACCOUNT +790 kernel/trace/trace_selftest.c

   786	
   787	#ifdef CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
   788	noinline __noclone static void trace_direct_tramp(void)
   789	{
 > 790		asm(CALL_DEPTH_ACCOUNT);
   791	}
   792	#endif
   793	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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