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Message-ID: <alpine.LFD.2.20.1510071638110.1531@knanqh.ubzr>
Date: Wed, 7 Oct 2015 16:45:47 -0400 (EDT)
From: Nicolas Pitre <nicolas.pitre@...aro.org>
To: Andrew Morton <akpm@...ux-foundation.org>
cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH] kmap_atomic_to_page() has no users, remove it
Removal started in commit 5bbeed12bdc3. Let's do it across the whole tree.
Signed-off-by: Nicolas Pitre <nico@...aro.org>
diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h
index 535579511e..0a0e2d1784 100644
--- a/arch/arm/include/asm/highmem.h
+++ b/arch/arm/include/asm/highmem.h
@@ -68,7 +68,6 @@ extern void kunmap(struct page *page);
extern void *kmap_atomic(struct page *page);
extern void __kunmap_atomic(void *kvaddr);
extern void *kmap_atomic_pfn(unsigned long pfn);
-extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
#endif
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c
index 9df5f09585..d02f8187b1 100644
--- a/arch/arm/mm/highmem.c
+++ b/arch/arm/mm/highmem.c
@@ -147,13 +147,3 @@ void *kmap_atomic_pfn(unsigned long pfn)
return (void *)vaddr;
}
-
-struct page *kmap_atomic_to_page(const void *ptr)
-{
- unsigned long vaddr = (unsigned long)ptr;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- return pte_page(get_fixmap_pte(vaddr));
-}
diff --git a/arch/frv/include/asm/highmem.h b/arch/frv/include/asm/highmem.h
index b3adc93611..1f58938703 100644
--- a/arch/frv/include/asm/highmem.h
+++ b/arch/frv/include/asm/highmem.h
@@ -62,8 +62,6 @@ extern void kunmap_high(struct page *page);
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
-extern struct page *kmap_atomic_to_page(void *ptr);
-
#endif /* !__ASSEMBLY__ */
/*
diff --git a/arch/frv/mm/highmem.c b/arch/frv/mm/highmem.c
index 785344bbdc..45750fb65c 100644
--- a/arch/frv/mm/highmem.c
+++ b/arch/frv/mm/highmem.c
@@ -32,11 +32,6 @@ void kunmap(struct page *page)
EXPORT_SYMBOL(kunmap);
-struct page *kmap_atomic_to_page(void *ptr)
-{
- return virt_to_page(ptr);
-}
-
void *kmap_atomic(struct page *page)
{
unsigned long paddr;
diff --git a/arch/metag/include/asm/highmem.h b/arch/metag/include/asm/highmem.h
index 6646a15c73..9b1d172cd8 100644
--- a/arch/metag/include/asm/highmem.h
+++ b/arch/metag/include/asm/highmem.h
@@ -56,7 +56,6 @@ extern void kunmap(struct page *page);
extern void *kmap_atomic(struct page *page);
extern void __kunmap_atomic(void *kvaddr);
extern void *kmap_atomic_pfn(unsigned long pfn);
-extern struct page *kmap_atomic_to_page(void *ptr);
#endif
#endif
diff --git a/arch/metag/mm/highmem.c b/arch/metag/mm/highmem.c
index 807f1b1c4e..f19a87f2c1 100644
--- a/arch/metag/mm/highmem.c
+++ b/arch/metag/mm/highmem.c
@@ -111,20 +111,6 @@ void *kmap_atomic_pfn(unsigned long pfn)
return (void *)vaddr;
}
-struct page *kmap_atomic_to_page(void *ptr)
-{
- unsigned long vaddr = (unsigned long)ptr;
- int idx;
- pte_t *pte;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- idx = virt_to_fix(vaddr);
- pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
- return pte_page(*pte);
-}
-
void __init kmap_init(void)
{
unsigned long kmap_vstart;
diff --git a/arch/microblaze/include/asm/highmem.h b/arch/microblaze/include/asm/highmem.h
index d046389324..67925ef18c 100644
--- a/arch/microblaze/include/asm/highmem.h
+++ b/arch/microblaze/include/asm/highmem.h
@@ -76,19 +76,6 @@ static inline void *kmap_atomic(struct page *page)
return kmap_atomic_prot(page, kmap_prot);
}
-static inline struct page *kmap_atomic_to_page(void *ptr)
-{
- unsigned long idx, vaddr = (unsigned long) ptr;
- pte_t *pte;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- idx = virt_to_fix(vaddr);
- pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
- return pte_page(*pte);
-}
-
#define flush_cache_kmaps() { flush_icache(); flush_dcache(); }
#endif /* __KERNEL__ */
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h
index 572e63ec2a..01880b34a2 100644
--- a/arch/mips/include/asm/highmem.h
+++ b/arch/mips/include/asm/highmem.h
@@ -49,7 +49,6 @@ extern void kunmap(struct page *page);
extern void *kmap_atomic(struct page *page);
extern void __kunmap_atomic(void *kvaddr);
extern void *kmap_atomic_pfn(unsigned long pfn);
-extern struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() flush_cache_all()
diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index 11661cbc11..d7258a1034 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -118,19 +118,6 @@ void *kmap_atomic_pfn(unsigned long pfn)
return (void*) vaddr;
}
-struct page *kmap_atomic_to_page(void *ptr)
-{
- unsigned long idx, vaddr = (unsigned long)ptr;
- pte_t *pte;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- idx = virt_to_fix(vaddr);
- pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
- return pte_page(*pte);
-}
-
void __init kmap_init(void)
{
unsigned long kmap_vstart;
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index ec2df4bab3..845272ce9c 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -156,7 +156,6 @@ static inline void __kunmap_atomic(void *addr)
#define kmap_atomic_prot(page, prot) kmap_atomic(page)
#define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#endif /* _PARISC_CACHEFLUSH_H */
diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index caaf6e0063..01c2c23b30 100644
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -84,19 +84,6 @@ static inline void *kmap_atomic(struct page *page)
return kmap_atomic_prot(page, kmap_prot);
}
-static inline struct page *kmap_atomic_to_page(void *ptr)
-{
- unsigned long idx, vaddr = (unsigned long) ptr;
- pte_t *pte;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- idx = virt_to_fix(vaddr);
- pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
- return pte_page(*pte);
-}
-
#define flush_cache_kmaps() flush_cache_all()
diff --git a/arch/tile/include/asm/highmem.h b/arch/tile/include/asm/highmem.h
index fc8429a31c..979579b38e 100644
--- a/arch/tile/include/asm/highmem.h
+++ b/arch/tile/include/asm/highmem.h
@@ -63,7 +63,6 @@ void *kmap_atomic(struct page *page);
void __kunmap_atomic(void *kvaddr);
void *kmap_atomic_pfn(unsigned long pfn);
void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
-struct page *kmap_atomic_to_page(void *ptr);
void *kmap_atomic_prot(struct page *page, pgprot_t prot);
void kmap_atomic_fix_kpte(struct page *page, int finished);
diff --git a/arch/tile/mm/highmem.c b/arch/tile/mm/highmem.c
index fcd545014e..eca28551b2 100644
--- a/arch/tile/mm/highmem.c
+++ b/arch/tile/mm/highmem.c
@@ -275,15 +275,3 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
return kmap_atomic_prot(pfn_to_page(pfn), prot);
}
-
-struct page *kmap_atomic_to_page(void *ptr)
-{
- pte_t *pte;
- unsigned long vaddr = (unsigned long)ptr;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- pte = kmap_get_pte(vaddr);
- return pte_page(*pte);
-}
diff --git a/arch/x86/include/asm/highmem.h b/arch/x86/include/asm/highmem.h
index 04e9d02316..1c0b43724c 100644
--- a/arch/x86/include/asm/highmem.h
+++ b/arch/x86/include/asm/highmem.h
@@ -68,7 +68,6 @@ void *kmap_atomic(struct page *page);
void __kunmap_atomic(void *kvaddr);
void *kmap_atomic_pfn(unsigned long pfn);
void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
-struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() do { } while (0)
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index eecb207a20..a6d7392581 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -104,20 +104,6 @@ void __kunmap_atomic(void *kvaddr)
}
EXPORT_SYMBOL(__kunmap_atomic);
-struct page *kmap_atomic_to_page(void *ptr)
-{
- unsigned long idx, vaddr = (unsigned long)ptr;
- pte_t *pte;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- idx = virt_to_fix(vaddr);
- pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
- return pte_page(*pte);
-}
-EXPORT_SYMBOL(kmap_atomic_to_page);
-
void __init set_highmem_pages_init(void)
{
struct zone *zone;
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 6aefcd0031..bb3f329706 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -78,7 +78,6 @@ static inline void __kunmap_atomic(void *addr)
}
#define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
-#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#define kmap_flush_unused() do {} while(0)
#endif
--
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