Re: [PATCH v2 2/2] r8169: Avoid pointer aliasing

From: Joe Perches
Date: Tue Feb 05 2019 - 15:18:17 EST


On Tue, 2019-02-05 at 12:04 -0800, Eric Dumazet wrote:
>
> On 02/05/2019 10:42 AM, Joe Perches wrote:
> > It's declared after a pointer so it is already is 2 byte aligned.
> >
> > A lot of drivers wouldn't work otherwise.
>
> Maybe these drivers are only used on arches where this does not matter.

Possible.

I had only grepped through the sources looking for
declarations using:

$ git grep -B1 '\[ETH_ALEN\];' -- '*.c' | grep -A1 '\*'

It's quite a few files in net/ too btw.

I still think adding __align(<even#>) is unnecessary here unless
it follows something like a bool or a u8.