linux-kernel - [ammarfaizi2-block:axboe/linux-block/for-next 89/112] include/trace/events/jbd2.h:356:1: sparse: sparse: cast to restricted blk_opf

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Date:   Sun, 17 Jul 2022 10:25:14 +0800
From:   kernel test robot <lkp@...el.com>
To:     Bart Van Assche <bvanassche@....org>
Cc:     kbuild-all@...ts.01.org, Ammar Faizi <ammarfaizi2@...weeb.org>,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org, Jens Axboe <axboe@...nel.dk>
Subject: [ammarfaizi2-block:axboe/linux-block/for-next 89/112]
 include/trace/events/jbd2.h:356:1: sparse: sparse: cast to restricted
 blk_opf_t

tree:   https://github.com/ammarfaizi2/linux-block axboe/linux-block/for-next
head:   b1fc9e8ad3d2d294d15e87d57af00890cd23cfc4
commit: 6669797b0dd41ced457760b6e1014fdda8ce19ce [89/112] fs/jbd2: Fix the documentation of the jbd2_write_superblock() callers
config: csky-randconfig-s053-20220715 (https://download.01.org/0day-ci/archive/20220717/202207171031.j4kTzo1K-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/ammarfaizi2/linux-block/commit/6669797b0dd41ced457760b6e1014fdda8ce19ce
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block axboe/linux-block/for-next
        git checkout 6669797b0dd41ced457760b6e1014fdda8ce19ce
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=csky SHELL=/bin/bash fs/jbd2/

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


sparse warnings: (new ones prefixed by >>)
   fs/jbd2/journal.c: note: in included file (through include/trace/trace_events.h, include/trace/define_trace.h, include/trace/events/jbd2.h):
>> include/trace/events/jbd2.h:356:1: sparse: sparse: cast to restricted blk_opf_t
>> include/trace/events/jbd2.h:356:1: sparse: sparse: cast to restricted blk_opf_t
>> include/trace/events/jbd2.h:356:1: sparse: sparse: restricted blk_opf_t degrades to integer
>> include/trace/events/jbd2.h:356:1: sparse: sparse: restricted blk_opf_t degrades to integer

vim +356 include/trace/events/jbd2.h

71f2be213a00090 Theodore Ts'o   2009-12-23  355  
24bcc89c7e7c649 Jan Kara        2012-03-13 @356  TRACE_EVENT(jbd2_write_superblock,
2201c590dd6e802 Seiji Aguchi    2012-02-20  357  
6669797b0dd41ce Bart Van Assche 2022-07-14  358  	TP_PROTO(journal_t *journal, blk_opf_t write_flags),
2201c590dd6e802 Seiji Aguchi    2012-02-20  359  
6669797b0dd41ce Bart Van Assche 2022-07-14  360  	TP_ARGS(journal, write_flags),
2201c590dd6e802 Seiji Aguchi    2012-02-20  361  
2201c590dd6e802 Seiji Aguchi    2012-02-20  362  	TP_STRUCT__entry(
2201c590dd6e802 Seiji Aguchi    2012-02-20  363  		__field(	dev_t,  dev			)
6669797b0dd41ce Bart Van Assche 2022-07-14  364  		__field(    blk_opf_t,  write_flags		)
2201c590dd6e802 Seiji Aguchi    2012-02-20  365  	),
2201c590dd6e802 Seiji Aguchi    2012-02-20  366  
2201c590dd6e802 Seiji Aguchi    2012-02-20  367  	TP_fast_assign(
2201c590dd6e802 Seiji Aguchi    2012-02-20  368  		__entry->dev		= journal->j_fs_dev->bd_dev;
6669797b0dd41ce Bart Van Assche 2022-07-14  369  		__entry->write_flags	= write_flags;
2201c590dd6e802 Seiji Aguchi    2012-02-20  370  	),
2201c590dd6e802 Seiji Aguchi    2012-02-20  371  
6669797b0dd41ce Bart Van Assche 2022-07-14  372  	TP_printk("dev %d,%d write_flags %x", MAJOR(__entry->dev),
6669797b0dd41ce Bart Van Assche 2022-07-14  373  		  MINOR(__entry->dev), (__force u32)__entry->write_flags)
2201c590dd6e802 Seiji Aguchi    2012-02-20  374  );
2201c590dd6e802 Seiji Aguchi    2012-02-20  375  

:::::: The code at line 356 was first introduced by commit
:::::: 24bcc89c7e7c64982e6192b4952a0a92379fc341 jbd2: split updating of journal superblock and marking journal empty

:::::: TO: Jan Kara <jack@...e.cz>
:::::: CC: Theodore Ts'o <tytso@....edu>

-- 
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https://01.org/lkp