linux-kernel - [PATCH 5/6] x86: remove the unused set_memory

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Date:   Tue, 13 Aug 2019 11:01:45 +0200
From:   Christoph Hellwig <hch@....de>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, x86@...nel.org
Cc:     Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/6] x86: remove the unused set_memory_wt function

Signed-off-by: Christoph Hellwig <hch@....de>
---
 arch/x86/include/asm/set_memory.h |  1 -
 arch/x86/mm/pageattr.c            | 17 -----------------
 2 files changed, 18 deletions(-)

diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h
index fd549c3ebb17..2ee8e469dcf5 100644
--- a/arch/x86/include/asm/set_memory.h
+++ b/arch/x86/include/asm/set_memory.h
@@ -40,7 +40,6 @@ int _set_memory_wt(unsigned long addr, int numpages);
 int _set_memory_wb(unsigned long addr, int numpages);
 int set_memory_uc(unsigned long addr, int numpages);
 int set_memory_wc(unsigned long addr, int numpages);
-int set_memory_wt(unsigned long addr, int numpages);
 int set_memory_wb(unsigned long addr, int numpages);
 int set_memory_np(unsigned long addr, int numpages);
 int set_memory_4k(unsigned long addr, int numpages);
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 0e39b344556d..9acd568c4faa 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1848,23 +1848,6 @@ int _set_memory_wt(unsigned long addr, int numpages)
 				    cachemode2pgprot(_PAGE_CACHE_MODE_WT), 0);
 }
 
-int set_memory_wt(unsigned long addr, int numpages)
-{
-	int ret;
-
-	ret = reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
-			      _PAGE_CACHE_MODE_WT, NULL);
-	if (ret)
-		return ret;
-
-	ret = _set_memory_wt(addr, numpages);
-	if (ret)
-		free_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(set_memory_wt);
-
 int _set_memory_wb(unsigned long addr, int numpages)
 {
 	/* WB cache mode is hard wired to all cache attribute bits being 0 */
-- 
2.20.1