Re: [PATCH 3/7] iommu/vt-d: Remove unnecessary exported symbol

[Jason Gunthorpe via iommu]

On Sat, May 14, 2022 at 09:43:18AM +0800, Lu Baolu wrote:
> The exported symbol intel_iommu_gfx_mapped is not used anywhere in the
> tree. Remove it to avoid dead code.
> 
> Signed-off-by: Lu Baolu 
> ---
>  include/linux/intel-iommu.h | 1 -
>  drivers/iommu/intel/iommu.c | 6 --
>  2 files changed, 7 deletions(-)

Reviewed-by: Jason Gunthorpe 

Maybe could squash to the prior patch

Jason
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[PATCH 3/7] iommu/vt-d: Remove unnecessary exported symbol

[Lu Baolu]

The exported symbol intel_iommu_gfx_mapped is not used anywhere in the
tree. Remove it to avoid dead code.

Signed-off-by: Lu Baolu 
---
 include/linux/intel-iommu.h | 1 -
 drivers/iommu/intel/iommu.c | 6 --
 2 files changed, 7 deletions(-)

diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 4f29139bbfc3..0f9df5a19ef7 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -790,7 +790,6 @@ extern int iommu_calculate_agaw(struct intel_iommu *iommu);
 extern int iommu_calculate_max_sagaw(struct intel_iommu *iommu);
 extern int dmar_disabled;
 extern int intel_iommu_enabled;
-extern int intel_iommu_gfx_mapped;
 #else
 static inline int iommu_calculate_agaw(struct intel_iommu *iommu)
 {
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index e56b3a4b6998..744af407d0da 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -314,9 +314,6 @@ static int iommu_skip_te_disable;
 #define IDENTMAP_GFX   2
 #define IDENTMAP_AZALIA4
 
-int intel_iommu_gfx_mapped;
-EXPORT_SYMBOL_GPL(intel_iommu_gfx_mapped);
-
 DEFINE_SPINLOCK(device_domain_lock);
 static LIST_HEAD(device_domain_list);
 
@@ -4117,9 +4114,6 @@ int __init intel_iommu_init(void)
if (list_empty(&dmar_satc_units))
pr_info("No SATC found\n");
 
-   if (dmar_map_gfx)
-   intel_iommu_gfx_mapped = 1;
-
init_no_remapping_devices();
 
ret = init_dmars();
-- 
2.25.1

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