The dpt_i2o driver uses the function memcpy_toio to copy the message
frame to the adapter. Under arch/x86_64/lib/io.c, it's helper function
is defined as:
void __memcpy_toio(unsigned long dst,const void*src,unsigned len)
{
__inline_memcpy((void *) dst,src,len);
}
The first argument should be 'volatile void __iomem * dst' I would have
expected. As such, the 64 bit virtual address representing the adapter
address passed in gets truncated (please correct me if I am wrong).
The writel and readl function do not have any similar problems.
Sincerely -- Mark Salyzyn
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