Messages in this thread Patch in this message | | | From | Logan Gunthorpe <> | Date | Tue, 10 Sep 2019 13:58:33 -0600 | Subject | [PATCH] PCI/switchtec: read all 64bits of part_event_bitmap |
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The part_event_bitmap register is 64 bits wide and should be read with ioread64 instead of the 32-bit ioread32.
Reported-by: Doug Meyer <dmeyer@gigaio.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Kelvin Cao <Kelvin.Cao@microchip.com> --- drivers/pci/switch/switchtec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index 8c94cd3fd1f2..465d6afd826e 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -675,7 +675,7 @@ static int ioctl_event_summary(struct switchtec_dev *stdev, return -ENOMEM; s->global = ioread32(&stdev->mmio_sw_event->global_summary); - s->part_bitmap = ioread32(&stdev->mmio_sw_event->part_event_bitmap); + s->part_bitmap = ioread64(&stdev->mmio_sw_event->part_event_bitmap); s->local_part = ioread32(&stdev->mmio_part_cfg->part_event_summary); for (i = 0; i < stdev->partition_count; i++) { -- 2.20.1
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