PCI/switchtec: read all 64bits of part_event_bitmap
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Message ID 20190910195833.3891-1-logang@deltatee.com
State New
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Series
  • PCI/switchtec: read all 64bits of part_event_bitmap
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Commit Message

Logan Gunthorpe Sept. 10, 2019, 7:58 p.m. UTC
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(-)

Patch
diff mbox series

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++) {