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m68knommu: remove is_in_rom() function

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Remove is_in_rom() function.  It doesn't actually serve the purpose it was
intended to.  If you look at the use of it _access_ok() (which is the only use
of it) then it is obvious that most of memory is marked as access_ok.  No
point having is_in_rom() then, so remove it.

Signed-off-by: Greg Ungerer <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Greg Ungerer 2007-07-19 01:49:15 -07:00 • committed by Linus Torvalds
commit 10146801e8
4 changed files with 7 additions and 27 deletions
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1
include/asm-m68knommu/pgtable.h
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@ -49,7 +49,6 @@ static inline int pte_file(pte_t pte) { return 0; }
* These would be in other places but having them here reduces the diffs.
*/
extern unsigned int kobjsize(const void *objp);
extern int is_in_rom(unsigned long);
/*
* No page table caches to initialise.

11
include/asm-m68knommu/uaccess.h
View file

@ -15,12 +15,15 @@
#define access_ok(type,addr,size) _access_ok((unsigned long)(addr),(size))
/*
* It is not enough to just have access_ok check for a real RAM address.
* This would disallow the case of code/ro-data running XIP in flash/rom.
* Ideally we would check the possible flash ranges too, but that is
* currently not so easy.
*/
static inline int _access_ok(unsigned long addr, unsigned long size)
{
extern unsigned long memory_start, memory_end;
return (((addr >= memory_start) && (addr+size < memory_end)) ||
(is_in_rom(addr) && is_in_rom(addr+size)));
return 1;
}
/*