On Thu, Sep 12, 2013 at 3:53 PM, Wolfgang Denk wd@denx.de wrote:
Dear Fabio Estevam,
In message CAOMZO5BY6kDOCoWn_SRwhPE7ssMjAReZ2bcFXGgFF-_Wrdgo0g@mail.gmail.com you wrote:
It makes perfect sense to allocate variable with function scope only on the stack. That's what the stack has been invented for.
This buffer in the fec driver will be used in DMA transfer, so maybe that's the reason we should use malloc instead of using the stack?
What has DMA to do with that? We're talking about alignment only.
I mentioned DMA because we align the buffer with __aligned(ARCH_DMA_MINALIGN).
Will try to see if I can reproduce the problem here, but the last time I tried I was not able to.
Maybe the gcc version that Robert and Hector pointed out may explain the different behaviour.
Regards,
Fabio Estevam