[PATCH v2 03/12] powerpc/mm: drop ppc_md.iounmap() and __iounmap()
From: Christophe Leroy <hidden>
Date: 2019-08-20 14:07:17
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
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 <redacted> --- arch/powerpc/include/asm/io.h | 5 ----- arch/powerpc/include/asm/machdep.h | 2 -- arch/powerpc/mm/pgtable_64.c | 11 +---------- 3 files changed, 1 insertion(+), 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
--
2.13.3