Re: [PATCH v4 2/2] staging: iio: adc: ad7816: Use DMA-safe buffer for SPI read

[nasser]

Hi Jonathan,

Thanks a lot for the detailed explanation and for taking the time to
explain the underlying architecture. I really appreciate the mentoring
and the pointer to Wolfram Sang's talk; I will definitely watch it.

I will rewrite the commit message to properly explain the cache line
sharing and VMAP_STACK issues, rather than implying stack memory is
magically not cache-coherent. I will also fix the misleading "correct
the sizeof" wording.
I am preparing v5 with these updates and will send it shortly.

Thanks,
Abdelnasser