# Re: \[PATCH\] compiler.h: Raise minimum version of GCC to 5.1 for arm64

- From: Joe Perches \<joe@perches.com\>
- Date: 2021-01-15 00:31:47 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2021/01/6235504
- Thread: https://ratatoskr.run/linux-arm-kernel/2021/01/6232574/t.md

```text
On Thu, 2021-01-14 at 13:18 -0800, Linus Torvalds wrote:
> On Thu, Jan 14, 2021 at 11:52 AM Joe Perches [ref] wrote:
> > 
> > Given the upgrade requirement, and how clang version requirements
> > constantly change, how much more difficult would it be for others
> > to use gcc 7.1 or higher now instead of later?
> 
> What was the argument for jumping all the way to gcc-7.1?
> 
> I do think we want to have real reasons we can point to, rather than a
> "just because".

KASAN v5 instead of all the old versions
gcc 7.1 supports fallthrough.

Probably more, but those might be sufficient.


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