From: kernel test robot <lkp@intel.com>
To: Tze-nan Wu <Tze-nan.Wu@mediatek.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
"Steven Rostedt (Google)" <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
linux-trace-kernel@vger.kernel.org
Subject: kernel/trace/trace_events_synth.c:47:1: sparse: sparse: symbol 'lastcmd_mutex' was not declared. Should it be static?
Date: Thu, 6 Apr 2023 20:11:17 +0800 [thread overview]
Message-ID: <202304062033.cRStgOuP-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 99ddf2254febae9eab7fb0bcc02c5322243f5c49
commit: 4ccf11c4e8a8e051499d53a12f502196c97a758e tracing/synthetic: Fix races on freeing last_cmd
date: 3 days ago
config: i386-randconfig-s031-20230403 (https://download.01.org/0day-ci/archive/20230406/202304062033.cRStgOuP-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4ccf11c4e8a8e051499d53a12f502196c97a758e
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4ccf11c4e8a8e051499d53a12f502196c97a758e
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 olddefconfig
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash kernel/trace/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304062033.cRStgOuP-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> kernel/trace/trace_events_synth.c:47:1: sparse: sparse: symbol 'lastcmd_mutex' was not declared. Should it be static?
kernel/trace/trace_events_synth.c:475:68: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *unsafe_addr @@ got char *str_val @@
kernel/trace/trace_events_synth.c:475:68: sparse: expected void const [noderef] __user *unsafe_addr
kernel/trace/trace_events_synth.c:475:68: sparse: got char *str_val
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
reply other threads:[~2023-04-06 12:12 UTC|newest]
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