linux-kernel - fs/zonefs/./trace.h:22:1: sparse: sparse: cast to restricted blk_opf

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Message-ID: <202208061533.YBqXyzHm-lkp@intel.com>
Date:   Sat, 6 Aug 2022 16:00:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Bart Van Assche <bvanassche@....org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>,
        Johannes Thumshirn <jth@...nel.org>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Subject: fs/zonefs/./trace.h:22:1: sparse: sparse: cast to restricted
 blk_opf_t

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6614a3c3164a5df2b54abb0b3559f51041cf705b
commit: e46b5970496705127f9ae494c66e0242773097e8 fs/zonefs: Use the enum req_op type for tracing request operations
date:   3 weeks ago
config: arm64-randconfig-s052-20220804 (https://download.01.org/0day-ci/archive/20220806/202208061533.YBqXyzHm-lkp@intel.com/config)
compiler: aarch64-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e46b5970496705127f9ae494c66e0242773097e8
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout e46b5970496705127f9ae494c66e0242773097e8
        # 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=arm64 SHELL=/bin/bash fs/zonefs/

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/zonefs/super.c: note: in included file (through include/trace/trace_events.h, include/trace/define_trace.h, fs/zonefs/trace.h):
>> fs/zonefs/./trace.h:22:1: sparse: sparse: cast to restricted blk_opf_t
>> fs/zonefs/./trace.h:22:1: sparse: sparse: cast to restricted blk_opf_t
>> fs/zonefs/./trace.h:22:1: sparse: sparse: restricted blk_opf_t degrades to integer
>> fs/zonefs/./trace.h:22:1: sparse: sparse: restricted blk_opf_t degrades to integer
   fs/zonefs/super.c: note: in included file (through arch/arm64/include/asm/smp.h, include/linux/smp.h, arch/arm64/include/asm/arch_timer.h, ...):
   arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff)
   arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff)
   arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff)
   arch/arm64/include/asm/percpu.h:127:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff)

vim +22 fs/zonefs/./trace.h

62ab1aadcccd03 Johannes Thumshirn 2021-01-27  21  
62ab1aadcccd03 Johannes Thumshirn 2021-01-27 @22  TRACE_EVENT(zonefs_zone_mgmt,
ff07a02e9e8e64 Bart Van Assche    2022-07-14  23  	    TP_PROTO(struct inode *inode, enum req_op op),
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  24  	    TP_ARGS(inode, op),
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  25  	    TP_STRUCT__entry(
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  26  			     __field(dev_t, dev)
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  27  			     __field(ino_t, ino)
e46b5970496705 Bart Van Assche    2022-07-14  28  			     __field(enum req_op, op)
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  29  			     __field(sector_t, sector)
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  30  			     __field(sector_t, nr_sectors)
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  31  	    ),
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  32  	    TP_fast_assign(
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  33  			   __entry->dev = inode->i_sb->s_dev;
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  34  			   __entry->ino = inode->i_ino;
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  35  			   __entry->op = op;
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  36  			   __entry->sector = ZONEFS_I(inode)->i_zsector;
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  37  			   __entry->nr_sectors =
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  38  				   ZONEFS_I(inode)->i_zone_size >> SECTOR_SHIFT;
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  39  	    ),
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  40  	    TP_printk("bdev=(%d,%d), ino=%lu op=%s, sector=%llu, nr_sectors=%llu",
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  41  		      show_dev(__entry->dev), (unsigned long)__entry->ino,
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  42  		      blk_op_str(__entry->op), __entry->sector,
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  43  		      __entry->nr_sectors
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  44  	    )
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  45  );
62ab1aadcccd03 Johannes Thumshirn 2021-01-27  46  

:::::: The code at line 22 was first introduced by commit
:::::: 62ab1aadcccd037a7ced4ed99b4d46d2b4190183 zonefs: add tracepoints for file operations

:::::: TO: Johannes Thumshirn <johannes.thumshirn@....com>
:::::: CC: Damien Le Moal <damien.lemoal@....com>

-- 
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