summaryrefslogtreecommitdiffstats
path: root/drivers/iommu
diff options
context:
space:
mode:
authorFenghua Yu <fenghua.yu@intel.com>2020-09-15 09:30:06 -0700
committerBorislav Petkov <bp@suse.de>2020-09-17 19:21:30 +0200
commit2a5054c6e7b16906984ac36a7363ca46b8d99ade (patch)
treec995540e3d0edd5db3288509c95d5a81b676167e /drivers/iommu
parentc7b6bac9c72c5fcbd6e9e12545bd3022c7f21860 (diff)
iommu/vt-d: Change flags type to unsigned int in binding mm
"flags" passed to intel_svm_bind_mm() is a bit mask and should be defined as "unsigned int" instead of "int". Change its type to "unsigned int". Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Acked-by: Joerg Roedel <jroedel@suse.de> Link: https://lkml.kernel.org/r/1600187413-163670-3-git-send-email-fenghua.yu@intel.com
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/intel/svm.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index e78a74a9c1cf..fc90a079e228 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -446,7 +446,8 @@ out:
/* Caller must hold pasid_mutex, mm reference */
static int
-intel_svm_bind_mm(struct device *dev, int flags, struct svm_dev_ops *ops,
+intel_svm_bind_mm(struct device *dev, unsigned int flags,
+ struct svm_dev_ops *ops,
struct mm_struct *mm, struct intel_svm_dev **sd)
{
struct intel_iommu *iommu = device_to_iommu(dev, NULL, NULL);
@@ -1033,7 +1034,7 @@ intel_svm_bind(struct device *dev, struct mm_struct *mm, void *drvdata)
{
struct iommu_sva *sva = ERR_PTR(-EINVAL);
struct intel_svm_dev *sdev = NULL;
- int flags = 0;
+ unsigned int flags = 0;
int ret;
/*
@@ -1042,7 +1043,7 @@ intel_svm_bind(struct device *dev, struct mm_struct *mm, void *drvdata)
* and intel_svm etc.
*/
if (drvdata)
- flags = *(int *)drvdata;
+ flags = *(unsigned int *)drvdata;
mutex_lock(&pasid_mutex);
ret = intel_svm_bind_mm(dev, flags, NULL, mm, &sdev);
if (ret)