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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