linux-kernel - [Patch Part1 V2 08/20] iommu/vt-d, trivial: clean up unused code

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Message-Id: <1386300083-6882-9-git-send-email-jiang.liu@linux.intel.com>
Date:	Fri,  6 Dec 2013 11:21:11 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Joerg Roedel <joro@...tes.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Ashok Raj <ashok.raj@...el.com>,
	Yijing Wang <wangyijing@...wei.com>,
	Jiri Kosina <trivial@...nel.org>,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Cc:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Tony Luck <tony.luck@...el.com>,
	Yinghai Lu <yinghai@...nel.org>, linux-pci@...r.kernel.org,
	dmaengine@...r.kernel.org
Subject: [Patch Part1 V2 08/20] iommu/vt-d, trivial: clean up unused code

Remove dead code from VT-d related files.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
---
 drivers/iommu/dmar.c        |    2 --
 drivers/iommu/intel-iommu.c |   25 -------------------------
 2 files changed, 27 deletions(-)

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 70612a9..9a76073 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1121,8 +1121,6 @@ static const char *irq_remap_fault_reasons[] =
 	"Blocked an interrupt request due to source-id verification failure",
 };
 
-#define MAX_FAULT_REASON_IDX 	(ARRAY_SIZE(fault_reason_strings) - 1)
-
 const char *dmar_get_fault_reason(u8 fault_reason, int *fault_type)
 {
 	if (fault_reason >= 0x20 && (fault_reason - 0x20 <
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 68bce9d..b5f13e4 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -289,26 +289,6 @@ static inline void dma_clear_pte(struct dma_pte *pte)
 	pte->val = 0;
 }
 
-static inline void dma_set_pte_readable(struct dma_pte *pte)
-{
-	pte->val |= DMA_PTE_READ;
-}
-
-static inline void dma_set_pte_writable(struct dma_pte *pte)
-{
-	pte->val |= DMA_PTE_WRITE;
-}
-
-static inline void dma_set_pte_snp(struct dma_pte *pte)
-{
-	pte->val |= DMA_PTE_SNP;
-}
-
-static inline void dma_set_pte_prot(struct dma_pte *pte, unsigned long prot)
-{
-	pte->val = (pte->val & ~3) | (prot & 3);
-}
-
 static inline u64 dma_pte_addr(struct dma_pte *pte)
 {
 #ifdef CONFIG_64BIT
@@ -319,11 +299,6 @@ static inline u64 dma_pte_addr(struct dma_pte *pte)
 #endif
 }
 
-static inline void dma_set_pte_pfn(struct dma_pte *pte, unsigned long pfn)
-{
-	pte->val |= (uint64_t)pfn << VTD_PAGE_SHIFT;
-}
-
 static inline bool dma_pte_present(struct dma_pte *pte)
 {
 	return (pte->val & 3) != 0;
-- 
1.7.10.4

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