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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-08-20 17:07:11 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-27 06:03:33 +0300 |
| commit | 8aee077292a34eaca717445290f12d23f8bd7732 (patch) | |
| tree | 1de43bdb5dd87560ecd5a4eead1e207fff9b873f /arch/powerpc | |
| parent | 6f57e6631d7c6ae34a5e811f7f49cb63647a9cab (diff) | |
| download | linux-8aee077292a34eaca717445290f12d23f8bd7732.tar.xz | |
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
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/io.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/machdep.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 11 |
3 files changed, 1 insertions, 17 deletions
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index 23e5d5d16c7e..02d6256fe1ea 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -712,9 +712,6 @@ static inline void iosync(void) * * __ioremap_caller is the same as above but takes an explicit caller * reference rather than using __builtin_return_address(0) * - * * __iounmap, is the low level implementation used by iounmap and cannot - * be hooked (but can be used by a hook on iounmap) - * */ extern void __iomem *ioremap(phys_addr_t address, unsigned long size); extern void __iomem *ioremap_prot(phys_addr_t address, unsigned long size, @@ -734,8 +731,6 @@ extern void __iomem *__ioremap(phys_addr_t, unsigned long size, extern void __iomem *__ioremap_caller(phys_addr_t, unsigned long size, pgprot_t prot, void *caller); -extern void __iounmap(volatile void __iomem *addr); - extern void __iomem * __ioremap_at(phys_addr_t pa, void *ea, unsigned long size, pgprot_t prot); extern void __iounmap_at(void *ea, unsigned long size); diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index c43d6eca9edd..3370df4bdaa0 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -33,8 +33,6 @@ struct machdep_calls { #ifdef CONFIG_PPC64 void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size, pgprot_t prot, void *caller); - void (*iounmap)(volatile void __iomem *token); - #ifdef CONFIG_PM void (*iommu_save)(void); void (*iommu_restore)(void); diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 9ad59b733984..57cdd6182932 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -266,7 +266,7 @@ void __iomem * ioremap_prot(phys_addr_t addr, unsigned long size, * Unmap an IO region and remove it from imalloc'd list. * Access to IO memory should be serialized by driver. */ -void __iounmap(volatile void __iomem *token) +void iounmap(volatile void __iomem *token) { void *addr; @@ -283,21 +283,12 @@ void __iounmap(volatile void __iomem *token) vunmap(addr); } -void iounmap(volatile void __iomem *token) -{ - if (ppc_md.iounmap) - ppc_md.iounmap(token); - else - __iounmap(token); -} - EXPORT_SYMBOL(ioremap); EXPORT_SYMBOL(ioremap_wc); EXPORT_SYMBOL(ioremap_prot); EXPORT_SYMBOL(__ioremap); EXPORT_SYMBOL(__ioremap_at); EXPORT_SYMBOL(iounmap); -EXPORT_SYMBOL(__iounmap); EXPORT_SYMBOL(__iounmap_at); #ifndef __PAGETABLE_PUD_FOLDED |