[PATCH 06/27] asm-generic: clean up asm-generic/io.h

[Remis Lima Baima <remis.developer@xxxxxxxxxxxxxx>]

Fix various aspects of the new asm-generic/io.h, in particular
warnings from sparse regarding __iomem annotations.

Signed-off-by: Remis Lima Baima <remis.developer@xxxxxxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 include/asm-generic/io.h |   37 ++++++++++++++++---------------------
 1 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 8377715..5ae45e5 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -13,6 +13,7 @@
 
 #include <asm/page.h> /* I/O is all done through memory accesses */
 #include <asm/cacheflush.h>
+#include <linux/types.h>
 
 #ifdef CONFIG_GENERIC_IOMAP
 #include <asm-generic/iomap.h>
@@ -29,17 +30,17 @@
  */
 static inline u8 __raw_readb(const volatile void __iomem *addr)
 {
-	return *(const volatile u8 *) addr;
+	return *(const volatile u8 __force *) addr;
 }
 
 static inline u16 __raw_readw(const volatile void __iomem *addr)
 {
-	return *(const volatile u16 *) addr;
+	return *(const volatile u16 __force *) addr;
 }
 
 static inline u32 __raw_readl(const volatile void __iomem *addr)
 {
-	return *(const volatile u32 *) addr;
+	return *(const volatile u32 __force *) addr;
 }
 
 #define readb __raw_readb
@@ -48,17 +49,17 @@ static inline u32 __raw_readl(const volatile void __iomem *addr)
 
 static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
 {
-	*(volatile u8 *) addr = b;
+	*(volatile u8 __force *) addr = b;
 }
 
 static inline void __raw_writew(u16 b, volatile void __iomem *addr)
 {
-	*(volatile u16 *) addr = b;
+	*(volatile u16 __force *) addr = b;
 }
 
 static inline void __raw_writel(u32 b, volatile void __iomem *addr)
 {
-	*(volatile u32 *) addr = b;
+	*(volatile u32 __force *) addr = b;
 }
 
 #define writeb __raw_writeb
@@ -68,13 +69,13 @@ static inline void __raw_writel(u32 b, volatile void __iomem *addr)
 #ifdef CONFIG_64BIT
 static inline u64 __raw_readq(const volatile void __iomem *addr)
 {
-	return *(const volatile u64 *) addr;
+	return *(const volatile u64 __force *) addr;
 }
 #define readq(addr) __le64_to_cpu(__raw_readq(addr))
 
 static inline void __raw_writeq(u64 b, volatile void __iomem *addr)
 {
-	*(volatile u64 *) addr = b;
+	*(volatile u64 __force *) addr = b;
 }
 #define writeq(b,addr) __raw_writeq(__cpu_to_le64(b),addr)
 #endif
@@ -101,17 +102,17 @@ static inline u32 inl(unsigned long addr)
 
 static inline void outb(u8 b, unsigned long addr)
 {
-	return writeb(b, (volatile void __iomem *) addr);
+	writeb(b, (volatile void __iomem *) addr);
 }
 
 static inline void outw(u16 b, unsigned long addr)
 {
-	return writew(b, (volatile void __iomem *) addr);
+	writew(b, (volatile void __iomem *) addr);
 }
 
 static inline void outl(u32 b, unsigned long addr)
 {
-	return writel(b, (volatile void __iomem *) addr);
+	writel(b, (volatile void __iomem *) addr);
 }
 
 #define inb_p(addr)	inb(addr)
@@ -231,7 +232,7 @@ static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
  */
 static inline unsigned long virt_to_phys(volatile void *address)
 {
-	return __pa(address);
+	return __pa((unsigned long)address);
 }
 
 static inline void *phys_to_virt(unsigned long address)
@@ -242,16 +243,12 @@ static inline void *phys_to_virt(unsigned long address)
 /*
  * Change "struct page" to physical address.
  */
-static inline void *__ioremap(unsigned long offset, unsigned long size,
-			      unsigned long flags)
+static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
 {
 	return (void *) offset;
 }
 
-static inline void *ioremap(unsigned long offset, unsigned long size)
-{
-	return (void *) offset;
-}
+#define __ioremap(offset, size, flags)	ioremap(offset, size)
 
 #ifndef ioremap_nocache
 #define ioremap_nocache ioremap
@@ -279,7 +276,7 @@ extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
 extern void ioport_unmap(void __iomem *p);
 #endif /* CONFIG_GENERIC_IOMAP */
 
-#define xlate_dev_kmem_ptr(p)	((void *) (p))
+#define xlate_dev_kmem_ptr(p)	p
 #define xlate_dev_mem_ptr(p)	((void *) (p))
 
 #ifndef virt_to_bus
@@ -294,8 +291,6 @@ static inline void *bus_to_virt(unsigned long address)
 }
 #endif
 
-#define page_to_bus page_to_phys
-
 #define memset_io(a, b, c)	memset(__io_virt(a), (b), (c))
 #define memcpy_fromio(a, b, c)	memcpy((a), __io_virt(b), (c))
 #define memcpy_toio(a, b, c)	memcpy(__io_virt(a), (b), (c))
-- 
1.5.6.3


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