This is a fix to a regression introduced in r27572.
Here's a fix, but... my kernel doesn't have CONFIG_GENERIC_ATOMIC64 set... yet
compat-wireless is still trying to compile and link it. Why is that?
Index: package/mac80211/patches/022-atomic64_backport.patch
===================================================================
--- package/mac80211/patches/022-atomic64_backport.patch (revision 27601)
+++ package/mac80211/patches/022-atomic64_backport.patch (working copy)
@@ -11,11 +11,12 @@
+endif
--- a/include/linux/compat-2.6.31.h
+++ b/include/linux/compat-2.6.31.h
-@@ -199,6 +199,20 @@ void compat_synchronize_threaded_irq(str
+@@ -199,6 +199,22 @@ void compat_synchronize_threaded_irq(str
#define list_entry_rcu(ptr, type, member) \
container_of(rcu_dereference(ptr), type, member)
+#ifndef CONFIG_64BIT
++#ifndef __i386__
+
+typedef struct {
+ long long counter;
@@ -27,6 +28,7 @@
+#define atomic64_inc_return(v) atomic64_add_return(1LL, (v))
+
+#endif
++#endif
+
+
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31)) */
@@ -34,10 +36,11 @@
#endif /* LINUX_26_31_COMPAT_H */
--- /dev/null
+++ b/compat/compat_atomic.c
-@@ -0,0 +1,29 @@
+@@ -0,0 +1,31 @@
+#include <linux/spinlock.h>
+#include <linux/module.h>
+
++#ifndef __i386__
+static DEFINE_SPINLOCK(lock);
+
+long long atomic64_read(const atomic64_t *v)
@@ -63,6 +66,7 @@
+ return val;
+}
+EXPORT_SYMBOL(atomic64_add_return);
++#endif
+
--- a/include/linux/compat-3.1.h
+++ b/include/linux/compat-3.1.h
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