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Commit 67a1901f authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[ARM] __ioremap doesn't use 4th argument 



The "align" argument in ARMs __ioremap is unused and provides a
misleading expectation that it might do something.  It doesn't.
Remove it.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 0c2e4b4f

arch/arm/mm/ioremap.c

+1 −2
Original line number Diff line number Diff line
@@ -130,8 +130,7 @@ remap_area_pages(unsigned long start, unsigned long phys_addr, 
 * mapping.  See include/asm-arm/proc-armv/pgtable.h for more information.

 */

void __iomem *

__ioremap(unsigned long phys_addr, size_t size, unsigned long flags,

	  unsigned long align)

__ioremap(unsigned long phys_addr, size_t size, unsigned long flags)

{

	void * addr;

	struct vm_struct * area;

include/asm-arm/arch-ixp4xx/io.h

+3 −6
Original line number Diff line number Diff line
@@ -59,11 +59,10 @@ extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data); 
 * fallback to the default.

 */

static inline void __iomem *

__ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags, unsigned long align)

__ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags)

{

	extern void __iomem * __ioremap(unsigned long, size_t, unsigned long, unsigned long);

	if((addr < 0x48000000) || (addr > 0x4fffffff))

		return __ioremap(addr, size, flags, align);

		return __ioremap(addr, size, flags);



	return (void *)addr;

}
@@ -71,13 +70,11 @@ __ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags, unsigned 
static inline void

__ixp4xx_iounmap(void __iomem *addr)

{

	extern void __iounmap(void __iomem *addr);



	if ((u32)addr >= VMALLOC_START)

		__iounmap(addr);

}



#define __arch_ioremap(a, s, f, x)	__ixp4xx_ioremap(a, s, f, x)

#define __arch_ioremap(a, s, f)		__ixp4xx_ioremap(a, s, f)

#define	__arch_iounmap(a)		__ixp4xx_iounmap(a)



#define	writeb(v, p)			__ixp4xx_writeb(v, p)

include/asm-arm/io.h

+12 −9
Original line number Diff line number Diff line
@@ -54,6 +54,12 @@ extern void __raw_readsl(void __iomem *addr, void *data, int longlen); 
#define __raw_readw(a)		(__chk_io_ptr(a), *(volatile unsigned short __force *)(a))

#define __raw_readl(a)		(__chk_io_ptr(a), *(volatile unsigned int __force   *)(a))



/*

 * Architecture ioremap implementation.

 */

extern void __iomem * __ioremap(unsigned long, size_t, unsigned long);

extern void __iounmap(void __iomem *addr);



/*

 * Bad read/write accesses...

 */
@@ -256,18 +262,15 @@ check_signature(void __iomem *io_addr, const unsigned char *signature, 
 * ioremap takes a PCI memory address, as specified in

 * Documentation/IO-mapping.txt.

 */

extern void __iomem * __ioremap(unsigned long, size_t, unsigned long, unsigned long);

extern void __iounmap(void __iomem *addr);



#ifndef __arch_ioremap

#define ioremap(cookie,size)		__ioremap(cookie,size,0,1)

#define ioremap_nocache(cookie,size)	__ioremap(cookie,size,0,1)

#define ioremap_cached(cookie,size)	__ioremap(cookie,size,L_PTE_CACHEABLE,1)

#define ioremap(cookie,size)		__ioremap(cookie,size,0)

#define ioremap_nocache(cookie,size)	__ioremap(cookie,size,0)

#define ioremap_cached(cookie,size)	__ioremap(cookie,size,L_PTE_CACHEABLE)

#define iounmap(cookie)			__iounmap(cookie)

#else

#define ioremap(cookie,size)		__arch_ioremap((cookie),(size),0,1)

#define ioremap_nocache(cookie,size)	__arch_ioremap((cookie),(size),0,1)

#define ioremap_cached(cookie,size)	__arch_ioremap((cookie),(size),L_PTE_CACHEABLE,1)

#define ioremap(cookie,size)		__arch_ioremap((cookie),(size),0)

#define ioremap_nocache(cookie,size)	__arch_ioremap((cookie),(size),0)

#define ioremap_cached(cookie,size)	__arch_ioremap((cookie),(size),L_PTE_CACHEABLE)

#define iounmap(cookie)			__arch_iounmap(cookie)

#endif