cxgb4: Don't call t4_slow_intr_handler when we're not the Master PF

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

@@ -724,6 +724,7 @@ static irqreturn_t t4_nondata_intr(int irq, void *cookie)
 		adap->swintr = 1;
 		t4_write_reg(adap, MYPF_REG(PL_PF_INT_CAUSE_A), v);
 	}
+	if (adap->flags & MASTER_PF)
 		t4_slow_intr_handler(adap);
 	return IRQ_HANDLED;
 }

drivers/net/ethernet/chelsio/cxgb4/sge.c

@@ -2238,6 +2238,7 @@ static irqreturn_t t4_intr_msi(int irq, void *cookie)
 {
 	struct adapter *adap = cookie;
 
+	if (adap->flags & MASTER_PF)
 		t4_slow_intr_handler(adap);
 	process_intrq(adap);
 	return IRQ_HANDLED;
@@ -2253,7 +2254,8 @@ static irqreturn_t t4_intr_intx(int irq, void *cookie)
 	struct adapter *adap = cookie;
 
 	t4_write_reg(adap, MYPF_REG(PCIE_PF_CLI_A), 0);
-	if (t4_slow_intr_handler(adap) | process_intrq(adap))
+	if (((adap->flags & MASTER_PF) && t4_slow_intr_handler(adap)) |
+	    process_intrq(adap))
 		return IRQ_HANDLED;
 	return IRQ_NONE;             /* probably shared interrupt */
 }