From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
[ Upstream commit b7e08a5a63a11627601915473c3b569c1f6c6c06 ]
usnic_uiom_map_sorted_intervals() is called under spin_lock(), iommu_map()
might sleep, use iommu_map_atomic() to avoid potential sleep in atomic
context.
Fixes: e3cf00d0a87f ("IB/usnic: Add Cisco VIC low-level hardware driver")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230129093757.637354-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/infiniband/hw/usnic/usnic_uiom.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index 62e6ffa9ad78e..1d060ae47933e 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -281,8 +281,8 @@ static int usnic_uiom_map_sorted_intervals(struct list_head *intervals,
size = pa_end - pa_start + PAGE_SIZE;
usnic_dbg("va 0x%lx pa %pa size 0x%zx flags 0x%x",
va_start, &pa_start, size, flags);
- err = iommu_map(pd->domain, va_start, pa_start,
- size, flags);
+ err = iommu_map_atomic(pd->domain, va_start,
+ pa_start, size, flags);
if (err) {
usnic_err("Failed to map va 0x%lx pa %pa size 0x%zx with err %d\n",
va_start, &pa_start, size, err);
@@ -298,8 +298,8 @@ static int usnic_uiom_map_sorted_intervals(struct list_head *intervals,
size = pa - pa_start + PAGE_SIZE;
usnic_dbg("va 0x%lx pa %pa size 0x%zx flags 0x%x\n",
va_start, &pa_start, size, flags);
- err = iommu_map(pd->domain, va_start, pa_start,
- size, flags);
+ err = iommu_map_atomic(pd->domain, va_start,
+ pa_start, size, flags);
if (err) {
usnic_err("Failed to map va 0x%lx pa %pa size 0x%zx with err %d\n",
va_start, &pa_start, size, err);
--
2.39.0
