Re: [PATCH] drivers: net: wireless: ath: ath9: dfs: remove VLA usage

Daniel Micay
2018-03-10T23:44:35Z

> Just wondering. Is this actually a VLA. FFT_NUM_SAMPLES was static const so
> not really going to show a lot of variation. This array will always have the
> same size on the stack.

The issue is that unlike in C++, a `static const` can't be used in a
constant expression in C. It's unclear why C is defined that way but
it's how it is and there isn't currently a GCC extension making more
things into constant expressions like C++.