Hi Joshua,

On Thu, 1 Dec 2016 16:04:09 -0800
Joshua Clayton stillcompiling-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
...

quoted

quoted

+static __always_inline __attribute_const__ u32 __arch_bitrev8x4(u32 x)
+{
+	__asm__ ("rbit %0, %1; rev %0, %0" : "=r" (x) : "r" (x));  

	return x;  

Oops thats a little embarrassing;
I'll add a return.

quoted

quoted

+}  

otherwise you get

In function '__arch_bitrev8x4':
warning: no return statement in function returning non-void [-Wreturn-type]

I wonder why I do not see this warning when compiling. The inlining, maybe?

do you have CONFIG_HAVE_ARCH_BITREVERSE=y in your .config?
Probably not optimized code is used, otherwise you will send wrong
data to FPGA (due to wrong return values from __arch_bitrev8x4).

Anatolij
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