forked from Minki/linux
powerpc/mm: drop ppc_md.iounmap() and __iounmap()
ppc_md.iounmap() is never set, drop it. Once ppc_md.iounmap() is gone, iounmap() remains the only user of __iounmap() and iounmap() does nothing else than calling __iounmap(). So drop iounmap() and make __iounmap() the new iounmap(). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/d73ba92bb7a387cc58cc34666d7f5158a45851b0.1566309262.git.christophe.leroy@c-s.fr
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@ -712,9 +712,6 @@ static inline void iosync(void)
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* * __ioremap_caller is the same as above but takes an explicit caller
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* reference rather than using __builtin_return_address(0)
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*
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* * __iounmap, is the low level implementation used by iounmap and cannot
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* be hooked (but can be used by a hook on iounmap)
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*
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*/
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extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
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extern void __iomem *ioremap_prot(phys_addr_t address, unsigned long size,
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@ -734,8 +731,6 @@ extern void __iomem *__ioremap(phys_addr_t, unsigned long size,
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extern void __iomem *__ioremap_caller(phys_addr_t, unsigned long size,
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pgprot_t prot, void *caller);
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extern void __iounmap(volatile void __iomem *addr);
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extern void __iomem * __ioremap_at(phys_addr_t pa, void *ea,
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unsigned long size, pgprot_t prot);
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extern void __iounmap_at(void *ea, unsigned long size);
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@ -33,8 +33,6 @@ struct machdep_calls {
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#ifdef CONFIG_PPC64
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void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
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pgprot_t prot, void *caller);
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void (*iounmap)(volatile void __iomem *token);
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#ifdef CONFIG_PM
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void (*iommu_save)(void);
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void (*iommu_restore)(void);
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@ -266,7 +266,7 @@ void __iomem * ioremap_prot(phys_addr_t addr, unsigned long size,
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* Unmap an IO region and remove it from imalloc'd list.
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* Access to IO memory should be serialized by driver.
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*/
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void __iounmap(volatile void __iomem *token)
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void iounmap(volatile void __iomem *token)
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{
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void *addr;
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@ -283,21 +283,12 @@ void __iounmap(volatile void __iomem *token)
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vunmap(addr);
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}
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void iounmap(volatile void __iomem *token)
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{
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if (ppc_md.iounmap)
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ppc_md.iounmap(token);
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else
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__iounmap(token);
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}
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EXPORT_SYMBOL(ioremap);
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EXPORT_SYMBOL(ioremap_wc);
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EXPORT_SYMBOL(ioremap_prot);
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EXPORT_SYMBOL(__ioremap);
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EXPORT_SYMBOL(__ioremap_at);
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EXPORT_SYMBOL(iounmap);
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EXPORT_SYMBOL(__iounmap);
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EXPORT_SYMBOL(__iounmap_at);
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#ifndef __PAGETABLE_PUD_FOLDED
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