[U-Boot] [PATCH] net: fec_mxc: Fix timeouts during tftp transfer

[Wolfgang Denk]

Dear Benoît Thébaudeau,

In message <1135126743.1842859.1379415574013.JavaMail.zimbra at advansee.com> you wrote:
> 
> > So how can the above not properly align the buffer? Is that a compiler bug
> > then?
> > 
> > btw. using ALLOC_CACHE_ALIGN_BUFFER will be safer were someone to change
> > FEC_MAX_PKT_SIZE, the buffer would still be safe for cache flush/inval ops.
> 
> I have encountered the same kind of alignment issue recently on something else.
> It looks like GCC for ARM just silently ignores the aligned attribute for auto
> (stacked) variables.

I would really like to see the generated code from such a system, so
we verify if this is indeed true, or if something else is causing such
issues.

Even if the suggested patch fixes the current problem, it leaves a bad
feeling as it's only based on speculation about the causes.

Best regards,

Wolfgang Denk

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