SELINUX: Fix build error.

[...]
CC security/selinux/hooks.o
/home/ralf/src/linux/linux-mips/security/selinux/hooks.c: In function ‘selinux_inode_permission’:
/home/ralf/src/linux/linux-mips/security/selinux/hooks.c:2644:38: error: ‘FILE__AUDIT_ACCESS’ undeclared (first use in this function) /home/ralf/src/linux/linux-mips/security/selinux/hooks.c:2644:38: note: each undeclared identifier is reported only once for each function it appears in make[4]: *** [security/selinux/hooks.o] Error 1
make[3]: *** [security/selinux] Error 2
make[2]: *** [security] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2

This is cause by a stale security/selinux/av_permissions.h in the $(src) directory which will override a more recent version in $(obj) that is it appears to strike only when building with a separate object directory.

 security/selinux/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

index f013982..58d80f3 100644
@@ -25,6 +25,6 @@ $(obj)/avc.o: $(obj)/flask.h
 quiet_cmd_flask = GEN     $(obj)/flask.h $(obj)/av_permissions.h
       cmd_flask = scripts/selinux/genheaders/genheaders $(obj)/flask.h $(obj)/av_permissions.h
 
-targets += flask.h
+targets += flask.h av_permissions.h
 $(obj)/flask.h: $(src)/include/classmap.h FORCE
 	$(call if_changed,flask)

Ralf is at least the second person I've seen who had this problem since the security tree merge. The problem was not introduced in this merge, it's just this merge was the first time I added new things to that file, so it's the first time anyone would have noticed. Introduced in 8753f6bec352392 but not really a problem until b782e0a68d17894d9a.

It's easily worked around deleting all of of the automagically generated av_permissions.h files and letting them be regenerated but hardly anyone would realize they need to delete files by hand (make clean, git clean, etc won't delete it)

I think James is traveling for a bit so I'm putting it out there for a faster track to inclusion.

-Eric