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sparc32: drop unused kmap_atomic_to_page

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No users left of this function - drop it.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sam Ravnborg 2012-07-26 11:02:17 +00:00 committed by David S. Miller
parent 881e02d298
commit 5bbeed12bd
2 changed files with 0 additions and 19 deletions
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1
arch/sparc/include/asm/highmem.h
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@ -72,7 +72,6 @@ static inline void kunmap(struct page *page)
extern void *kmap_atomic(struct page *page);
extern void __kunmap_atomic(void *kvaddr);
extern struct page *kmap_atomic_to_page(void *vaddr);
#define flush_cache_kmaps() flush_cache_all()

18
arch/sparc/mm/highmem.c
View file

@ -110,21 +110,3 @@ void __kunmap_atomic(void *kvaddr)
pagefault_enable();
}
EXPORT_SYMBOL(__kunmap_atomic);
/* We may be fed a pagetable here by ptep_to_xxx and others. */
struct page *kmap_atomic_to_page(void *ptr)
{
unsigned long idx, vaddr = (unsigned long)ptr;
pte_t *pte;
if (vaddr < SRMMU_NOCACHE_VADDR)
return virt_to_page(ptr);
if (vaddr < PKMAP_BASE)
return pfn_to_page(__nocache_pa(vaddr) >> PAGE_SHIFT);
BUG_ON(vaddr < FIXADDR_START);
BUG_ON(vaddr > FIXADDR_TOP);
idx = virt_to_fix(vaddr);
pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
return pte_page(*pte);
}