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openrisc: Make pfn accessors statics inlines

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Making virt_to_pfn() a static inline taking a strongly typed
(const void *) makes the contract of a passing a pointer of that
type to the function explicit and exposes any misuse of the
macro virt_to_pfn() acting polymorphic and accepting many types
such as (void *), (unitptr_t) or (unsigned long) as arguments
without warnings.

For symmetry, do the same with pfn_to_virt().

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stafford Horne <shorne@gmail.com>
This commit is contained in:
Linus Walleij 2023-08-11 09:01:17 +02:00 committed by Stafford Horne
parent 52a93d39b1
commit 232ba1630c
1 changed files with 9 additions and 2 deletions
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11
arch/openrisc/include/asm/page.h
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@ -72,8 +72,15 @@ typedef struct page *pgtable_t;
#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
static inline unsigned long virt_to_pfn(const void *kaddr)
{
return __pa(kaddr) >> PAGE_SHIFT;
}
static inline void * pfn_to_virt(unsigned long pfn)
{
return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT);
}
#define virt_to_page(addr) \
(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))