From 857e239c3ef57e6ba0ff148de96e14249a4d669b Mon Sep 17 00:00:00 2001 From: Jeremy Pallotta Date: Thu, 23 Dec 2021 17:23:31 -0800 Subject: ntb_hw_switchtec: AND with the part_map for a valid tpart_vec Some firmware versions return 1 in the target partition vector for undefined partitions. AND with the part_map to give a valid tpart_vec. Signed-off-by: Jeremy Pallotta Signed-off-by: Kelvin Cao Signed-off-by: Jon Mason --- drivers/ntb/hw/mscc/ntb_hw_switchtec.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/ntb/hw') diff --git a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c index 36efba21db4b..8e9b97631884 100644 --- a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c +++ b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c @@ -858,6 +858,7 @@ static int switchtec_ntb_init_sndev(struct switchtec_ntb *sndev) tpart_vec |= ioread32(&sndev->mmio_ntb->ntp_info[self].target_part_low); part_map = ioread64(&sndev->mmio_ntb->ep_map); + tpart_vec &= part_map; part_map &= ~(1 << sndev->self_partition); if (!tpart_vec) { -- cgit v1.2.3