diff options
| author | Logan Gunthorpe <logang@deltatee.com> | 2019-09-10 13:58:33 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-12 12:12:02 +0100 |
| commit | e9eae4143c33ebe33aa2e195c2863c6e1bf3f8cd (patch) | |
| tree | 94630ab3fec8b835780500f998949a40b621d97f /drivers/pci | |
| parent | b454ac1b22af130c6fb8d34c344a98339f1cea9a (diff) | |
PCI/switchtec: Read all 64 bits of part_event_bitmap
commit 6acdf7e19b37cb3a9258603d0eab315079c19c5e upstream.
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 <dmeyer@gigaio.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v4.12+
Cc: Kelvin Cao <Kelvin.Cao@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/switch/switchtec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index e3aefdafae89..0941555b84a5 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -23,7 +23,7 @@ #include <linux/pci.h> #include <linux/cdev.h> #include <linux/wait.h> - +#include <linux/io-64-nonatomic-lo-hi.h> #include <linux/nospec.h> MODULE_DESCRIPTION("Microsemi Switchtec(tm) PCIe Management Driver"); @@ -898,7 +898,7 @@ static int ioctl_event_summary(struct switchtec_dev *stdev, u32 reg; s.global = ioread32(&stdev->mmio_sw_event->global_summary); - s.part_bitmap = ioread32(&stdev->mmio_sw_event->part_event_bitmap); + s.part_bitmap = readq(&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++) { |