sfc: modify allocation error message

Change error message when alloc_cpumask_var fails.

Repairs "cpumask: convert drivers/net/sfc".
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/sfc/efx.c

@@ -894,9 +894,9 @@ static int efx_wanted_rx_queues(void)
 	int count;
 	int cpu;
 
-	if (!alloc_cpumask_var(&core_mask, GFP_KERNEL)) {
+	if (unlikely(!alloc_cpumask_var(&core_mask, GFP_KERNEL))) {
 		printk(KERN_WARNING
-		       "efx.c: allocation failure, irq balancing hobbled\n");
+		       "sfc: RSS disabled due to allocation failure\n");
 		return 1;
 	}