Hi Jeff,

FYI, there are new compile warnings show up in

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git for-next
head:   713fdd18bf2d10c67c728a6342decf04a507d168
commit: f29cd968a6b48b7d6d7749c9846f3cefc06321e6 [14/22] vfs: define struct filename and have getname() return it
config: i386-randconfig-b180 (attached as .config)

All warnings:

fs/namei.c: In function 'getname_flags':
fs/namei.c:163:3: warning: passing argument 1 of 'audit_getname' from incompatible pointer type [enabled by default]
In file included from include/linux/fsnotify.h:15:0,
                 from fs/namei.c:24:
include/linux/audit.h:668:20: note: expected 'const char *' but argument is of type 'struct filename *'
fs/namei.c: At top level:
fs/namei.c:181:6: error: redefinition of 'final_putname'
fs/namei.c:120:6: note: previous definition of 'final_putname' was here

vim +163 fs/namei.c

f29cd968 Jeff Layton    2012-10-10  147  	if (unlikely(len < 0)) {
f29cd968 Jeff Layton    2012-10-10  148  		err = ERR_PTR(len);
3f9f0aa6 Linus Torvalds 2012-04-28  149  		goto error;
f29cd968 Jeff Layton    2012-10-10  150  	}
3f9f0aa6 Linus Torvalds 2012-04-28  151  
3f9f0aa6 Linus Torvalds 2012-04-28  152  	/* The empty path is special. */
3f9f0aa6 Linus Torvalds 2012-04-28  153  	if (unlikely(!len)) {
3f9f0aa6 Linus Torvalds 2012-04-28  154  		if (empty)
4043cde8 Eric Paris     2012-01-03  155  			*empty = 1;
3f9f0aa6 Linus Torvalds 2012-04-28  156  		err = ERR_PTR(-ENOENT);
3f9f0aa6 Linus Torvalds 2012-04-28  157  		if (!(flags & LOOKUP_EMPTY))
3f9f0aa6 Linus Torvalds 2012-04-28  158  			goto error;
^1da177e Linus Torvalds 2005-04-16  159  	}
3f9f0aa6 Linus Torvalds 2012-04-28  160  
3f9f0aa6 Linus Torvalds 2012-04-28  161  	err = ERR_PTR(-ENAMETOOLONG);
3f9f0aa6 Linus Torvalds 2012-04-28  162  	if (likely(len < PATH_MAX)) {
3f9f0aa6 Linus Torvalds 2012-04-28 @163  		audit_getname(result);
3f9f0aa6 Linus Torvalds 2012-04-28  164  		return result;
3f9f0aa6 Linus Torvalds 2012-04-28  165  	}
3f9f0aa6 Linus Torvalds 2012-04-28  166  
3f9f0aa6 Linus Torvalds 2012-04-28  167  error:
f29cd968 Jeff Layton    2012-10-10  168  	__putname(kname);
f29cd968 Jeff Layton    2012-10-10  169  error_free_name:
f29cd968 Jeff Layton    2012-10-10  170  	kfree(result);
3f9f0aa6 Linus Torvalds 2012-04-28  171  	return err;

The code at line 163 was first introduced by commit:
3f9f0aa VFS: clean up and simplify getname_flags()

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0-DAY kernel build testing backend         Open Source Technology Center
Fengguang Wu, Yuanhan Liu                              Intel Corporation