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

Pull OpenRISC fixes from Stafford Horne:
 "OpenRISC fixes for build issues that were exposed by kbuild robots
  after 4.11 merge. All from allmodconfig builds. This includes:

   - bug in the handling of 8-byte get_user() calls

   - module build failure due to multile missing symbol exports"

* tag 'openrisc-for-linus' of git://github.com/openrisc/linux:
  openrisc: Export symbols needed by modules
  openrisc: fix issue handling 8 byte get_user calls
  openrisc: xchg: fix `computed is not used` warning

4 files changed, 12 insertions, 3 deletions

diff --git a/arch/openrisc/include/asm/cmpxchg.h b/arch/openrisc/include/asm/cmpxchg.h
index 5fcb9ac72693..f0a5d8b844d6 100644
--- a/arch/openrisc/include/asm/cmpxchg.h
+++ b/arch/openrisc/include/asm/cmpxchg.h
@@ -77,7 +77,11 @@ static inline unsigned long __xchg(unsigned long val, volatile void *ptr,
         return val;
 }
 
-#define xchg(ptr, with) \
-        ((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), sizeof(*(ptr))))
+#define xchg(ptr, with)                                                 \
+        ({                                                              \
+                (__typeof__(*(ptr))) __xchg((unsigned long)(with),      \
+                                            (ptr),                      \
+                                            sizeof(*(ptr)));            \
+        })
 
 #endif /* __ASM_OPENRISC_CMPXCHG_H */
diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
index 140faa16685a..1311e6b13991 100644
--- a/arch/openrisc/include/asm/uaccess.h
+++ b/arch/openrisc/include/asm/uaccess.h
@@ -211,7 +211,7 @@ do {									\
         case 1: __get_user_asm(x, ptr, retval, "l.lbz"); break;         \
         case 2: __get_user_asm(x, ptr, retval, "l.lhz"); break;         \
         case 4: __get_user_asm(x, ptr, retval, "l.lwz"); break;         \
-        case 8: __get_user_asm2(x, ptr, retval);                        \
+        case 8: __get_user_asm2(x, ptr, retval); break;                 \
         default: (x) = __get_user_bad();                                \
         }                                                               \
 } while (0)
diff --git a/arch/openrisc/kernel/or32_ksyms.c b/arch/openrisc/kernel/or32_ksyms.c
index 5c4695d13542..ee3e604959e1 100644
--- a/arch/openrisc/kernel/or32_ksyms.c
+++ b/arch/openrisc/kernel/or32_ksyms.c
@@ -30,6 +30,7 @@
 #include <asm/hardirq.h>
 #include <asm/delay.h>
 #include <asm/pgalloc.h>
+#include <asm/pgtable.h>
 
 #define DECLARE_EXPORT(name) extern void name(void); EXPORT_SYMBOL(name)
 
@@ -42,6 +43,9 @@ DECLARE_EXPORT(__muldi3);
 DECLARE_EXPORT(__ashrdi3);
 DECLARE_EXPORT(__ashldi3);
 DECLARE_EXPORT(__lshrdi3);
+DECLARE_EXPORT(__ucmpdi2);
 
+EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(__copy_tofrom_user);
+EXPORT_SYMBOL(__clear_user);
 EXPORT_SYMBOL(memset);
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 828a29110459..f8da545854f9 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -90,6 +90,7 @@ void arch_cpu_idle(void)
 }
 
 void (*pm_power_off) (void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 /*
  * When a process does an "exec", machine state like FPU and debug