netdev - [PATCH 12/17] iommu: remove DOMAIN_ATTR

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Message-Id: <20210301084257.945454-13-hch@lst.de>
Date:   Mon,  1 Mar 2021 09:42:52 +0100
From:   Christoph Hellwig <hch@....de>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Li Yang <leoyang.li@....com>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        David Woodhouse <dwmw2@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [PATCH 12/17] iommu: remove DOMAIN_ATTR_PAGING

DOMAIN_ATTR_PAGING is never used.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/iommu/iommu.c | 5 -----
 include/linux/iommu.h | 1 -
 2 files changed, 6 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index b212bf0261820b..9a4cda390993e6 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -2668,7 +2668,6 @@ int iommu_domain_get_attr(struct iommu_domain *domain,
 			  enum iommu_attr attr, void *data)
 {
 	struct iommu_domain_geometry *geometry;
-	bool *paging;
 	int ret = 0;
 
 	switch (attr) {
@@ -2676,10 +2675,6 @@ int iommu_domain_get_attr(struct iommu_domain *domain,
 		geometry  = data;
 		*geometry = domain->geometry;
 
-		break;
-	case DOMAIN_ATTR_PAGING:
-		paging  = data;
-		*paging = (domain->pgsize_bitmap != 0UL);
 		break;
 	default:
 		if (!domain->ops->domain_get_attr)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 840864844027dc..180ff4bd7fa7ef 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -108,7 +108,6 @@ enum iommu_cap {
 
 enum iommu_attr {
 	DOMAIN_ATTR_GEOMETRY,
-	DOMAIN_ATTR_PAGING,
 	DOMAIN_ATTR_NESTING,	/* two stages of translation */
 	DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
 	DOMAIN_ATTR_IO_PGTABLE_CFG,
-- 
2.29.2