Merge tag 'for-linus' of git://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "A few patches all over the place during this cycle, mostly bug and
  sparse warning fixes for OpenRISC, but a few enhancements too. Note,
  there are 2 non OpenRISC specific fixups.

  Non OpenRISC fixes:

   - In init we need to align the init_task correctly to fix an issue
     with MUTEX_FLAGS, reviewed by Peter Z. No one picked this up so I
     kept it on my tree.

   - In asm-generic/io.h I fixed up some sparse warnings, OK'd by Arnd.
     Arnd asked to merge it via my tree.

  OpenRISC fixes:

   - Many fixes for OpenRISC sprase warnings.

   - Add support OpenRISC SMP tlb flushing rather than always flushing
     the entire TLB on every CPU.

   - Fix bug when dumping stack via /proc/xxx/stack of user threads"

* tag 'for-linus' of git://github.com/openrisc/linux:
  openrisc: uaccess: Add user address space check to access_ok
  openrisc: signal: Fix sparse address space warnings
  openrisc: uaccess: Remove unused macro __addr_ok
  openrisc: uaccess: Use static inline function in access_ok
  openrisc: uaccess: Fix sparse address space warnings
  openrisc: io: Fixup defines and move include to the end
  asm-generic/io.h: Fix sparse warnings on big-endian architectures
  openrisc: Implement proper SMP tlb flushing
  openrisc: Fix oops caused when dumping stack
  openrisc: Add support for external initrd images
  init: Align init_task to avoid conflict with MUTEX_FLAGS
  openrisc: fix __user in raw_copy_to_user()'s prototype

2 files changed, 19 insertions, 13 deletions

diff --git a/arch/openrisc/include/asm/io.h b/arch/openrisc/include/asm/io.h
index db02fb2077d9..7d6b4a77b379 100644
--- a/arch/openrisc/include/asm/io.h
+++ b/arch/openrisc/include/asm/io.h
@@ -14,6 +14,8 @@
 #ifndef __ASM_OPENRISC_IO_H
 #define __ASM_OPENRISC_IO_H
 
+#include <linux/types.h>
+
 /*
  * PCI: can we really do 0 here if we have no port IO?
  */
@@ -25,9 +27,12 @@
 #define PIO_OFFSET		0
 #define PIO_MASK		0
 
-#include <asm-generic/io.h>
-
+#define ioremap ioremap
 void __iomem *ioremap(phys_addr_t offset, unsigned long size);
+
+#define iounmap iounmap
 extern void iounmap(void *addr);
 
+#include <asm-generic/io.h>
+
 #endif
diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
index 48b691530d3e..f0390211236b 100644
--- a/arch/openrisc/include/asm/uaccess.h
+++ b/arch/openrisc/include/asm/uaccess.h
@@ -48,16 +48,17 @@
 /* Ensure that the range from addr to addr+size is all within the process'
  * address space
  */
-#define __range_ok(addr, size) (size <= get_fs() && addr <= (get_fs()-size))
+static inline int __range_ok(unsigned long addr, unsigned long size)
+{
+	const mm_segment_t fs = get_fs();
 
-/* Ensure that addr is below task's addr_limit */
-#define __addr_ok(addr) ((unsigned long) addr < get_fs())
+	return size <= fs && addr <= (fs - size);
+}
 
 #define access_ok(addr, size)						\
 ({ 									\
-	unsigned long __ao_addr = (unsigned long)(addr);		\
-	unsigned long __ao_size = (unsigned long)(size);		\
-	__range_ok(__ao_addr, __ao_size);				\
+	__chk_user_ptr(addr);						\
+	__range_ok((unsigned long)(addr), (size));			\
 })
 
 /*
@@ -100,7 +101,7 @@ extern long __put_user_bad(void);
 #define __put_user_check(x, ptr, size)					\
 ({									\
 	long __pu_err = -EFAULT;					\
-	__typeof__(*(ptr)) *__pu_addr = (ptr);				\
+	__typeof__(*(ptr)) __user *__pu_addr = (ptr);			\
 	if (access_ok(__pu_addr, size))			\
 		__put_user_size((x), __pu_addr, (size), __pu_err);	\
 	__pu_err;							\
@@ -173,7 +174,7 @@ struct __large_struct {
 #define __get_user_check(x, ptr, size)					\
 ({									\
 	long __gu_err = -EFAULT, __gu_val = 0;				\
-	const __typeof__(*(ptr)) * __gu_addr = (ptr);			\
+	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);		\
 	if (access_ok(__gu_addr, size))			\
 		__get_user_size(__gu_val, __gu_addr, (size), __gu_err);	\
 	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
@@ -241,17 +242,17 @@ raw_copy_from_user(void *to, const void __user *from, unsigned long size)
 	return __copy_tofrom_user(to, (__force const void *)from, size);
 }
 static inline unsigned long
-raw_copy_to_user(void *to, const void __user *from, unsigned long size)
+raw_copy_to_user(void __user *to, const void *from, unsigned long size)
 {
 	return __copy_tofrom_user((__force void *)to, from, size);
 }
 #define INLINE_COPY_FROM_USER
 #define INLINE_COPY_TO_USER
 
-extern unsigned long __clear_user(void *addr, unsigned long size);
+extern unsigned long __clear_user(void __user *addr, unsigned long size);
 
 static inline __must_check unsigned long
-clear_user(void *addr, unsigned long size)
+clear_user(void __user *addr, unsigned long size)
 {
 	if (likely(access_ok(addr, size)))
 		size = __clear_user(addr, size);