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ntb_hw_switchtec: AND with the part_map for a valid tpart_vec

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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 <jmpallotta@gmail.com>
Signed-off-by: Kelvin Cao <kelvin.cao@microchip.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
This commit is contained in:
Jeremy Pallotta 2021-12-23 17:23:31 -08:00 committed by Jon Mason
parent 7ff351c86b
commit 857e239c3e
1 changed files with 1 additions and 0 deletions
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1
drivers/ntb/hw/mscc/ntb_hw_switchtec.c
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@ -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) {