e1000_suspend is only used under #ifdef CONFIG_PM.  Move the declaration of
it to be the same way, just like e1000_resume, otherwise gcc whines on
compile.  I offer as evidence:

	static struct pci_driver e1000_driver = {
 	       .name     = e1000_driver_name,
 	      .id_table = e1000_pci_tbl,
  	      .probe    = e1000_probe,
  	      .remove   = __devexit_p(e1000_remove),
 	      /* Power Managment Hooks */
	#ifdef CONFIG_PM
 	       .suspend  = e1000_suspend,
 	       .resume   = e1000_resume
	#endif
	};

Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>