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path: root/drivers/pci/switch/switchtec.c
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Diffstat (limited to 'drivers/pci/switch/switchtec.c')
-rw-r--r--drivers/pci/switch/switchtec.c42
1 files changed, 29 insertions, 13 deletions
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 0f7b80144863..bebbde4ebec0 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -658,19 +658,25 @@ static int ioctl_flash_part_info(struct switchtec_dev *stdev,
static int ioctl_event_summary(struct switchtec_dev *stdev,
struct switchtec_user *stuser,
- struct switchtec_ioctl_event_summary __user *usum)
+ struct switchtec_ioctl_event_summary __user *usum,
+ size_t size)
{
- struct switchtec_ioctl_event_summary s = {0};
+ struct switchtec_ioctl_event_summary *s;
int i;
u32 reg;
+ int ret = 0;
- s.global = ioread32(&stdev->mmio_sw_event->global_summary);
- s.part_bitmap = ioread32(&stdev->mmio_sw_event->part_event_bitmap);
- s.local_part = ioread32(&stdev->mmio_part_cfg->part_event_summary);
+ s = kzalloc(sizeof(*s), GFP_KERNEL);
+ if (!s)
+ return -ENOMEM;
+
+ s->global = ioread32(&stdev->mmio_sw_event->global_summary);
+ s->part_bitmap = ioread32(&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++) {
reg = ioread32(&stdev->mmio_part_cfg_all[i].part_event_summary);
- s.part[i] = reg;
+ s->part[i] = reg;
}
for (i = 0; i < SWITCHTEC_MAX_PFF_CSR; i++) {
@@ -679,15 +685,19 @@ static int ioctl_event_summary(struct switchtec_dev *stdev,
break;
reg = ioread32(&stdev->mmio_pff_csr[i].pff_event_summary);
- s.pff[i] = reg;
+ s->pff[i] = reg;
}
- if (copy_to_user(usum, &s, sizeof(s)))
- return -EFAULT;
+ if (copy_to_user(usum, s, size)) {
+ ret = -EFAULT;
+ goto error_case;
+ }
stuser->event_cnt = atomic_read(&stdev->event_cnt);
- return 0;
+error_case:
+ kfree(s);
+ return ret;
}
static u32 __iomem *global_ev_reg(struct switchtec_dev *stdev,
@@ -977,8 +987,9 @@ static long switchtec_dev_ioctl(struct file *filp, unsigned int cmd,
case SWITCHTEC_IOCTL_FLASH_PART_INFO:
rc = ioctl_flash_part_info(stdev, argp);
break;
- case SWITCHTEC_IOCTL_EVENT_SUMMARY:
- rc = ioctl_event_summary(stdev, stuser, argp);
+ case SWITCHTEC_IOCTL_EVENT_SUMMARY_LEGACY:
+ rc = ioctl_event_summary(stdev, stuser, argp,
+ sizeof(struct switchtec_ioctl_event_summary_legacy));
break;
case SWITCHTEC_IOCTL_EVENT_CTL:
rc = ioctl_event_ctl(stdev, argp);
@@ -989,6 +1000,10 @@ static long switchtec_dev_ioctl(struct file *filp, unsigned int cmd,
case SWITCHTEC_IOCTL_PORT_TO_PFF:
rc = ioctl_port_to_pff(stdev, argp);
break;
+ case SWITCHTEC_IOCTL_EVENT_SUMMARY:
+ rc = ioctl_event_summary(stdev, stuser, argp,
+ sizeof(struct switchtec_ioctl_event_summary));
+ break;
default:
rc = -ENOTTY;
break;
@@ -1162,7 +1177,8 @@ static int mask_event(struct switchtec_dev *stdev, int eid, int idx)
if (!(hdr & SWITCHTEC_EVENT_OCCURRED && hdr & SWITCHTEC_EVENT_EN_IRQ))
return 0;
- if (eid == SWITCHTEC_IOCTL_EVENT_LINK_STATE)
+ if (eid == SWITCHTEC_IOCTL_EVENT_LINK_STATE ||
+ eid == SWITCHTEC_IOCTL_EVENT_MRPC_COMP)
return 0;
dev_dbg(&stdev->dev, "%s: %d %d %x\n", __func__, eid, idx, hdr);