[GIT PULL for-4.9 30/48] qed: Reserve doorbell BAR space for present CPUs
From: Levin, Alexander (Sasha Levin)
Date: Tue Oct 10 2017 - 20:46:41 EST
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>
---
drivers/net/ethernet/qlogic/qed/qed_dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 41367c490a7f..afe5e57d9acb 100644
--- 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_hwfn *p_hwfn, struct qed_ptt *p_ptt)
/* 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);
}
--
2.11.0