On Wed, Mar 16, 2005 at 03:08:13PM -0500, Salyzyn, Mark wrote:
> 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).
Why would you think that 'void *' is smaller than 'volatile void __iomem *'?
--
"Next the statesmen will invent cheap lies, putting the blame upon
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince
himself that the war is just, and will thank God for the better sleep
he enjoys after this process of grotesque self-deception." -- Mark Twain
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