[PATCH 2/4] iommu/vt-d: Remove unused parameter of intel_pasid_setup_pass_through()

Lu Baolu
2023-12-18T07:39:37Z

The domain parameter of this helper is unused and can be deleted to avoid
dead code.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20231116015048.29675-3-baolu.lu@linux.intel.com
---
drivers/iommu/intel/pasid.h | 1 -
drivers/iommu/intel/iommu.c | 5 ++---
drivers/iommu/intel/pasid.c | 1 -
3 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/intel/pasid.h b/drivers/iommu/intel/pasid.h
index dd37611175cc..16265bc1f7ec 100644
--- a/drivers/iommu/intel/pasid.h
+++ b/drivers/iommu/intel/pasid.h
@@ -111,7 +111,6 @@ int intel_pasid_setup_dirty_tracking(struct intel_iommu *iommu,
struct device *dev, u32 pasid,
bool enabled);
int intel_pasid_setup_pass_through(struct intel_iommu *iommu,
- struct dmar_domain *domain,
struct device *dev, u32 pasid);
int intel_pasid_setup_nested(struct intel_iommu *iommu, struct device *dev,
u32 pasid, struct dmar_domain *domain);
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 874d35f760fb..a91959c42781 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -2462,7 +2462,7 @@ static int dmar_domain_attach_device(struct dmar_domain *domain,
if (sm_supported(iommu) && !dev_is_real_dma_subdevice(dev)) {
/* Setup the PASID entry for requests without PASID: */
if (hw_pass_through && domain_type_is_si(domain))
- ret = intel_pasid_setup_pass_through(iommu, domain,
+ ret = intel_pasid_setup_pass_through(iommu,
dev, IOMMU_NO_PASID);
else if (domain->use_first_level)
ret = domain_setup_first_level(iommu, domain, dev,
@@ -4801,8 +4801,7 @@ static int intel_iommu_set_dev_pasid(struct iommu_domain *domain,
goto out_free;

if (domain_type_is_si(dmar_domain))
- ret = intel_pasid_setup_pass_through(iommu, dmar_domain,
- dev, pasid);
+ ret = intel_pasid_setup_pass_through(iommu, dev, pasid);
else if (dmar_domain->use_first_level)
ret = domain_setup_first_level(iommu, dmar_domain,
dev, pasid);
diff --git a/drivers/iommu/intel/pasid.c b/drivers/iommu/intel/pasid.c
index 74e8e4c17e81..8a1bcabf71a9 100644
--- a/drivers/iommu/intel/pasid.c
+++ b/drivers/iommu/intel/pasid.c
@@ -767,7 +767,6 @@ int intel_pasid_setup_dirty_tracking(struct intel_iommu *iommu,
* Set up the scalable mode pasid entry for passthrough translation type.
*/
int intel_pasid_setup_pass_through(struct intel_iommu *iommu,
- struct dmar_domain *domain,
struct device *dev, u32 pasid)
{
u16 did = FLPT_DEFAULT_DID;
--
2.34.1