| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 32/51] qed: Reserve doorbell BAR space for present CPUs | Date | Thu, 19 Oct 2017 15:48:53 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Ram Amrani <Ram.Amrani@cavium.com>
[ 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@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- 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); }
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