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* [djwong-xfs:xfs-fixes-5.14 49/51] fs/xfs/xfs_ioctl32.c:500:3: error: 'error' undeclared; did you mean 'PG_error'?
@ 2021-07-03  5:10 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-07-03  5:10 UTC (permalink / raw)
  To: Darrick J. Wong; +Cc: kbuild-all, Darrick J. Wong, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 9757 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git xfs-fixes-5.14
head:   de17bba3813af2ce6cb9de8db1a3909f40a65302
commit: 8395f4d02e4e9e5e47df5f6aac67419671bc6b5a [49/51] xfs: fix warnings in compat_ioctl code
config: mips-randconfig-r034-20210702 (attached as .config)
compiler: mips64-linux-gcc (GCC) 9.3.0
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/djwong/xfs-linux.git/commit/?id=8395f4d02e4e9e5e47df5f6aac67419671bc6b5a
        git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git
        git fetch --no-tags djwong-xfs xfs-fixes-5.14
        git checkout 8395f4d02e4e9e5e47df5f6aac67419671bc6b5a
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash fs/xfs/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   fs/xfs/xfs_ioctl32.c: In function 'xfs_file_compat_ioctl':
>> fs/xfs/xfs_ioctl32.c:500:3: error: 'error' undeclared (first use in this function); did you mean 'PG_error'?
     500 |   error = mnt_want_write_file(filp);
         |   ^~~~~
         |   PG_error
   fs/xfs/xfs_ioctl32.c:500:3: note: each undeclared identifier is reported only once for each function it appears in
>> fs/xfs/xfs_ioctl32.c:491:27: warning: this statement may fall through [-Wimplicit-fallthrough=]
     491 |  case XFS_IOC_SWAPEXT_32: {
         |                           ^
   fs/xfs/xfs_ioctl32.c:507:2: note: here
     507 |  case XFS_IOC_FSBULKSTAT_32:
         |  ^~~~


vim +500 fs/xfs/xfs_ioctl32.c

28750975ace79c fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  432  
4d4be482a4d78c fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2008-12-09  433  long
4d4be482a4d78c fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2008-12-09  434  xfs_file_compat_ioctl(
d5547f9feea459 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  435  	struct file		*filp,
e0edd5962bd83d fs/xfs/linux-2.6/xfs_ioctl32.c Nathan Scott        2006-03-29  436  	unsigned		cmd,
4d4be482a4d78c fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2008-12-09  437  	unsigned long		p)
^1da177e4c3f41 fs/xfs/linux-2.6/xfs_ioctl32.c Linus Torvalds      2005-04-16  438  {
496ad9aa8ef448 fs/xfs/xfs_ioctl32.c           Al Viro             2013-01-23  439  	struct inode		*inode = file_inode(filp);
4d4be482a4d78c fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2008-12-09  440  	struct xfs_inode	*ip = XFS_I(inode);
4529e6d7a6ab72 fs/xfs/xfs_ioctl32.c           Christoph Hellwig   2019-08-15  441  	void			__user *arg = compat_ptr(p);
^1da177e4c3f41 fs/xfs/linux-2.6/xfs_ioctl32.c Linus Torvalds      2005-04-16  442  
cca28fb83d9e60 fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2010-06-24  443  	trace_xfs_file_compat_ioctl(ip);
4d4be482a4d78c fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2008-12-09  444  
^1da177e4c3f41 fs/xfs/linux-2.6/xfs_ioctl32.c Linus Torvalds      2005-04-16  445  	switch (cmd) {
a9d25bde1e9b24 fs/xfs/xfs_ioctl32.c           Nick Bowler         2018-12-17  446  #if defined(BROKEN_X86_ALIGNMENT)
526c420c44b45b fs/xfs/linux-2.6/xfs_ioctl32.c Eric Sandeen        2005-09-05  447  	case XFS_IOC_ALLOCSP_32:
526c420c44b45b fs/xfs/linux-2.6/xfs_ioctl32.c Eric Sandeen        2005-09-05  448  	case XFS_IOC_FREESP_32:
526c420c44b45b fs/xfs/linux-2.6/xfs_ioctl32.c Eric Sandeen        2005-09-05  449  	case XFS_IOC_ALLOCSP64_32:
837a6e7f5cdb5e fs/xfs/xfs_ioctl32.c           Christoph Hellwig   2019-10-24  450  	case XFS_IOC_FREESP64_32: {
d5547f9feea459 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  451  		struct xfs_flock64	bf;
d5547f9feea459 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  452  
d5547f9feea459 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  453  		if (xfs_compat_flock64_copyin(&bf, arg))
b474c7ae4395ba fs/xfs/xfs_ioctl32.c           Eric Sandeen        2014-06-22  454  			return -EFAULT;
526c420c44b45b fs/xfs/linux-2.6/xfs_ioctl32.c Eric Sandeen        2005-09-05  455  		cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
837a6e7f5cdb5e fs/xfs/xfs_ioctl32.c           Christoph Hellwig   2019-10-24  456  		return xfs_ioc_space(filp, &bf);
d5547f9feea459 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  457  	}
547e00c3c68126 fs/xfs/linux-2.6/xfs_ioctl32.c Michal Marek        2007-07-11  458  	case XFS_IOC_FSGEOMETRY_V1_32:
f69e8091c4a2ae fs/xfs/xfs_ioctl32.c           Christoph Hellwig   2021-02-03  459  		return xfs_compat_ioc_fsgeometry_v1(ip->i_mount, arg);
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  460  	case XFS_IOC_FSGROWFSDATA_32: {
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  461  		struct xfs_growfs_data	in;
8395f4d02e4e9e fs/xfs/xfs_ioctl32.c           Darrick J. Wong     2021-06-27  462  		int			error;
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  463  
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  464  		if (xfs_compat_growfs_data_copyin(&in, arg))
b474c7ae4395ba fs/xfs/xfs_ioctl32.c           Eric Sandeen        2014-06-22  465  			return -EFAULT;
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  466  		error = mnt_want_write_file(filp);
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  467  		if (error)
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  468  			return error;
f69e8091c4a2ae fs/xfs/xfs_ioctl32.c           Christoph Hellwig   2021-02-03  469  		error = xfs_growfs_data(ip->i_mount, &in);
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  470  		mnt_drop_write_file(filp);
2451337dd04390 fs/xfs/xfs_ioctl32.c           Dave Chinner        2014-06-25  471  		return error;
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  472  	}
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  473  	case XFS_IOC_FSGROWFSRT_32: {
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  474  		struct xfs_growfs_rt	in;
8395f4d02e4e9e fs/xfs/xfs_ioctl32.c           Darrick J. Wong     2021-06-27  475  		int			error;
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  476  
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  477  		if (xfs_compat_growfs_rt_copyin(&in, arg))
b474c7ae4395ba fs/xfs/xfs_ioctl32.c           Eric Sandeen        2014-06-22  478  			return -EFAULT;
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  479  		error = mnt_want_write_file(filp);
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  480  		if (error)
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  481  			return error;
f69e8091c4a2ae fs/xfs/xfs_ioctl32.c           Christoph Hellwig   2021-02-03  482  		error = xfs_growfs_rt(ip->i_mount, &in);
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12  483  		mnt_drop_write_file(filp);
2451337dd04390 fs/xfs/xfs_ioctl32.c           Dave Chinner        2014-06-25  484  		return error;
471d59103167c8 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  485  	}
^1da177e4c3f41 fs/xfs/linux-2.6/xfs_ioctl32.c Linus Torvalds      2005-04-16  486  #endif
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  487  	/* long changes size, but xfs only copiese out 32 bits */
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  488  	case XFS_IOC_GETVERSION_32:
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  489  		cmd = _NATIVE_IOC(cmd, long);
4d4be482a4d78c fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2008-12-09  490  		return xfs_file_ioctl(filp, cmd, p);
3725867dccfb83 fs/xfs/linux-2.6/xfs_ioctl32.c Christoph Hellwig   2009-09-01 @491  	case XFS_IOC_SWAPEXT_32: {
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  492  		struct xfs_swapext	  sxp;
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  493  		struct compat_xfs_swapext __user *sxu = arg;
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  494  
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  495  		/* Bulk copy in up to the sx_stat field, then copy bstat */
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  496  		if (copy_from_user(&sxp, sxu,
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  497  				   offsetof(struct xfs_swapext, sx_stat)) ||
e5d412f17846b0 fs/xfs/linux-2.6/xfs_ioctl32.c sandeen@sandeen.net 2008-11-25  498  		    xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
b474c7ae4395ba fs/xfs/xfs_ioctl32.c           Eric Sandeen        2014-06-22  499  			return -EFAULT;
d9457dc0562499 fs/xfs/xfs_ioctl32.c           Jan Kara            2012-06-12 @500  		error = mnt_want_write_file(filp);

:::::: The code at line 500 was first introduced by commit
:::::: d9457dc056249913a7abe8b71dc09e427e590e35 xfs: Convert to new freezing code

:::::: TO: Jan Kara <jack@suse.cz>
:::::: CC: Al Viro <viro@zeniv.linux.org.uk>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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