From 6acdf7e19b37cb3a9258603d0eab315079c19c5e Mon Sep 17 00:00:00 2001 From: Logan Gunthorpe Date: Tue, 10 Sep 2019 13:58:33 -0600 Subject: PCI/switchtec: Read all 64 bits of part_event_bitmap The part_event_bitmap register is 64 bits wide, so read it with ioread64() instead of the 32-bit ioread32(). Fixes: 52eabba5bcdb ("switchtec: Add IOCTLs to the Switchtec driver") Link: https://lore.kernel.org/r/20190910195833.3891-1-logang@deltatee.com Reported-by: Doug Meyer Signed-off-by: Logan Gunthorpe Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org # v4.12+ Cc: Kelvin Cao --- 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++) { -- cgit v1.2.3