5 files changed, 29 insertions, 25 deletions

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index dcae0c8d97e6..c8bd2daf95ec 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -182,4 +182,16 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 # define __section(S) __attribute__ ((__section__(#S)))
 #endif
 
+/*
+ * Prevent the compiler from merging or refetching accesses.  The compiler
+ * is also forbidden from reordering successive instances of ACCESS_ONCE(),
+ * but only when the compiler is aware of some particular ordering.  One way
+ * to make the compiler aware of ordering is to put the two invocations of
+ * ACCESS_ONCE() in different C statements.
+ *
+ * This macro does absolutely -nothing- to prevent the CPU from reordering,
+ * merging, or refetching absolutely anything at any time.
+ */
+#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+
 #endif /* __LINUX_COMPILER_H */
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 897f723bd222..181006cc94a0 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -72,6 +72,14 @@
 #define in_softirq()            (softirq_count())
 #define in_interrupt()          (irq_count())
 
+#if defined(CONFIG_PREEMPT)
+# define PREEMPT_INATOMIC_BASE kernel_locked()
+# define PREEMPT_CHECK_OFFSET 1
+#else
+# define PREEMPT_INATOMIC_BASE 0
+# define PREEMPT_CHECK_OFFSET 0
+#endif
+
 /*
  * Are we running in atomic context?  WARNING: this macro cannot
  * always detect atomic context; in particular, it cannot know about
@@ -79,17 +87,11 @@
  * used in the general case to determine whether sleeping is possible.
  * Do not use in_atomic() in driver code.
  */
-#define in_atomic()             ((preempt_count() & ~PREEMPT_ACTIVE) != 0)
-
-#ifdef CONFIG_PREEMPT
-# define PREEMPT_CHECK_OFFSET 1
-#else
-# define PREEMPT_CHECK_OFFSET 0
-#endif
+#define in_atomic()     ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_INATOMIC_BASE)
 
 /*
  * Check whether we were atomic before we did preempt_disable():
- * (used by the scheduler)
+ * (used by the scheduler, *after* releasing the kernel lock)
  */
 #define in_atomic_preempt_off() \
                 ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_CHECK_OFFSET)
diff --git a/include/linux/of_i2c.h b/include/linux/of_i2c.h
index 2e5a96732042..bd2a870ec296 100644
--- a/include/linux/of_i2c.h
+++ b/include/linux/of_i2c.h
@@ -14,11 +14,7 @@
 
 #include <linux/i2c.h>
 
-#ifdef CONFIG_OF_I2C
-
 void of_register_i2c_devices(struct i2c_adapter *adap,
                              struct device_node *adap_node);
 
-#endif /* CONFIG_OF_I2C */
-
 #endif /* __LINUX_OF_I2C_H */
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 8082d6587a0f..d42dbec06083 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -131,18 +131,6 @@ struct rcu_head {
  */
 #define rcu_read_unlock_bh() __rcu_read_unlock_bh()
 
-/*
- * Prevent the compiler from merging or refetching accesses.  The compiler
- * is also forbidden from reordering successive instances of ACCESS_ONCE(),
- * but only when the compiler is aware of some particular ordering.  One way
- * to make the compiler aware of ordering is to put the two invocations of
- * ACCESS_ONCE() in different C statements.
- *
- * This macro does absolutely -nothing- to prevent the CPU from reordering,
- * merging, or refetching absolutely anything at any time.
- */
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
-
 /**
  * rcu_dereference - fetch an RCU-protected pointer in an
  * RCU read-side critical section.  This pointer may later
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
index 4d0909e53595..79b9837d9ca0 100644
--- a/include/linux/vermagic.h
+++ b/include/linux/vermagic.h
@@ -17,6 +17,11 @@
 #else
 #define MODULE_VERMAGIC_MODULE_UNLOAD ""
 #endif
+#ifdef CONFIG_MODVERSIONS
+#define MODULE_VERMAGIC_MODVERSIONS "modversions "
+#else
+#define MODULE_VERMAGIC_MODVERSIONS ""
+#endif
 #ifndef MODULE_ARCH_VERMAGIC
 #define MODULE_ARCH_VERMAGIC ""
 #endif
@@ -24,5 +29,6 @@
 #define VERMAGIC_STRING                                                 \
         UTS_RELEASE " "                                                 \
         MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT                     \
-        MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC
+        MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS       \
+        MODULE_ARCH_VERMAGIC