[PATCH 4.9 32/51] qed: Reserve doorbell BAR space for present CPUs

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ram Amrani <Ram.Amrani@xxxxxxxxxx>


[ Upstream commit c2dedf8773e873474535bd4a158609b9eda5403d ]

Reserving doorbell BAR space according to the currently active CPUs
may result in a bug if disabled CPUs are later enabled but no
doorbell space was reserved for them.

Signed-off-by: Ram Amrani <Ram.Amrani@xxxxxxxxxx>
Signed-off-by: Yuval Mintz <Yuval.Mintz@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/qlogic/qed/qed_dev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -877,7 +877,7 @@ qed_hw_init_pf_doorbell_bar(struct qed_h
 		/* Either EDPM is mandatory, or we are attempting to allocate a
 		 * WID per CPU.
 		 */
-		n_cpus = num_active_cpus();
+		n_cpus = num_present_cpus();
 		rc = qed_hw_init_dpi_size(p_hwfn, p_ptt, pwm_regsize, n_cpus);
 	}