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* fs/nfs/nfs4super.c:232:17: sparse: sparse: incompatible types in conditional expression (different base types):
@ 2026-05-14  5:03 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-05-14  5:03 UTC (permalink / raw)
  To: Andy Shevchenko; +Cc: oe-kbuild-all, linux-kernel, Chuck Lever, Jeff Layton

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   e1914add2799225a87502051415fc5c32aeb02ae
commit: 6f57293abb8d087de830dd3f02e66d94b3e59973 sunrpc: Fix compilation error (`make W=1`) when dprintk() is no-op
date:   6 weeks ago
config: x86_64-randconfig-121-20260514 (https://download.01.org/0day-ci/archive/20260514/202605141218.uA0wk544-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260514/202605141218.uA0wk544-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Fixes: 6f57293abb8d ("sunrpc: Fix compilation error (`make W=1`) when dprintk() is no-op")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605141218.uA0wk544-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> fs/nfs/nfs4super.c:232:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/nfs4super.c:232:17: sparse:    void
   fs/nfs/nfs4super.c:232:17: sparse:    int
   fs/nfs/nfs4super.c:255:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/nfs4super.c:255:17: sparse:    void
   fs/nfs/nfs4super.c:255:17: sparse:    int
--
>> fs/nfs/getroot.c:90:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/getroot.c:90:17: sparse:    void
   fs/nfs/getroot.c:90:17: sparse:    int
   fs/nfs/getroot.c:98:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/getroot.c:98:17: sparse:    void
   fs/nfs/getroot.c:98:17: sparse:    int
   fs/nfs/getroot.c:114:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/getroot.c:114:17: sparse:    void
   fs/nfs/getroot.c:114:17: sparse:    int
--
>> fs/nfs/namespace.c:304:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/namespace.c:304:17: sparse:    void
   fs/nfs/namespace.c:304:17: sparse:    int
--
>> fs/nfs/fs_context.c:1120:9: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/fs_context.c:1120:9: sparse:    void
   fs/nfs/fs_context.c:1120:9: sparse:    int
   fs/nfs/fs_context.c:1123:9: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/fs_context.c:1123:9: sparse:    void
   fs/nfs/fs_context.c:1123:9: sparse:    int
   fs/nfs/fs_context.c:1126:9: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/fs_context.c:1126:9: sparse:    void
   fs/nfs/fs_context.c:1126:9: sparse:    int
   fs/nfs/fs_context.c:1591:9: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/fs_context.c:1591:9: sparse:    void
   fs/nfs/fs_context.c:1591:9: sparse:    int
   fs/nfs/fs_context.c:1605:9: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/fs_context.c:1605:9: sparse:    void
   fs/nfs/fs_context.c:1605:9: sparse:    int
--
   fs/nfs/super.c:1170:49: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct rpc_xprt *xprt1 @@     got struct rpc_xprt [noderef] __rcu *cl_xprt @@
   fs/nfs/super.c:1170:49: sparse:     expected struct rpc_xprt *xprt1
   fs/nfs/super.c:1170:49: sparse:     got struct rpc_xprt [noderef] __rcu *cl_xprt
   fs/nfs/super.c:1171:49: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct rpc_xprt *xprt2 @@     got struct rpc_xprt [noderef] __rcu *cl_xprt @@
   fs/nfs/super.c:1171:49: sparse:     expected struct rpc_xprt *xprt2
   fs/nfs/super.c:1171:49: sparse:     got struct rpc_xprt [noderef] __rcu *cl_xprt
>> fs/nfs/super.c:1307:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/super.c:1307:17: sparse:    void
   fs/nfs/super.c:1307:17: sparse:    int
   fs/nfs/super.c:1333:17: sparse: sparse: incompatible types in conditional expression (different base types):
   fs/nfs/super.c:1333:17: sparse:    void
   fs/nfs/super.c:1333:17: sparse:    int

vim +232 fs/nfs/nfs4super.c

fbdefd64428113 Bryan Schumaker 2012-07-16  217  
f2aedb713c2844 David Howells   2019-12-10  218  int nfs4_try_get_tree(struct fs_context *fc)
fbdefd64428113 Bryan Schumaker 2012-07-16  219  {
f2aedb713c2844 David Howells   2019-12-10  220  	struct nfs_fs_context *ctx = nfs_fc2context(fc);
f2aedb713c2844 David Howells   2019-12-10  221  	int err;
fbdefd64428113 Bryan Schumaker 2012-07-16  222  
f2aedb713c2844 David Howells   2019-12-10  223  	dfprintk(MOUNT, "--> nfs4_try_get_tree()\n");
fbdefd64428113 Bryan Schumaker 2012-07-16  224  
f2aedb713c2844 David Howells   2019-12-10  225  	/* We create a mount for the server's root, walk to the requested
f2aedb713c2844 David Howells   2019-12-10  226  	 * location and then create another mount for that.
f2aedb713c2844 David Howells   2019-12-10  227  	 */
62a55d088cd87d Scott Mayhew    2019-12-10  228  	err= do_nfs4_mount(nfs4_create_server(fc),
f2aedb713c2844 David Howells   2019-12-10  229  			   fc, ctx->nfs_server.hostname,
5eb005caf5383d David Howells   2019-12-10  230  			   ctx->nfs_server.export_path);
f2aedb713c2844 David Howells   2019-12-10  231  	if (err) {
c98e9daa59a611 Scott Mayhew    2021-01-05 @232  		nfs_ferrorf(fc, MOUNT, "NFS4: Couldn't follow remote path");
f2aedb713c2844 David Howells   2019-12-10  233  		dfprintk(MOUNT, "<-- nfs4_try_get_tree() = %d [error]\n", err);
f2aedb713c2844 David Howells   2019-12-10  234  	} else {
f2aedb713c2844 David Howells   2019-12-10  235  		dfprintk(MOUNT, "<-- nfs4_try_get_tree() = 0\n");
f2aedb713c2844 David Howells   2019-12-10  236  	}
f2aedb713c2844 David Howells   2019-12-10  237  	return err;
fbdefd64428113 Bryan Schumaker 2012-07-16  238  }
fbdefd64428113 Bryan Schumaker 2012-07-16  239  

:::::: The code at line 232 was first introduced by commit
:::::: c98e9daa59a611ff4e163689815f40380c912415 NFS: Adjust fs_context error logging

:::::: TO: Scott Mayhew <smayhew@redhat.com>
:::::: CC: Trond Myklebust <trond.myklebust@hammerspace.com>

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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