linux-kernel - Re: [PATCH v3 3/4] staging: rtl8723bs: use ether_addr_copy() in rtw_macaddr

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Message-ID: <997ac97e1dcfcaf4d0b1fa7003d4611dd7821f5d.camel@perches.com>
Date:   Tue, 26 Jun 2018 14:36:00 -0700
From:   Joe Perches <joe@...ches.com>
To:     Michael Straube <straube.linux@...il.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH v3 3/4] staging: rtl8723bs: use ether_addr_copy() in
 rtw_macaddr_cfg()

On Tue, 2018-06-26 at 22:32 +0200, Michael Straube wrote:
> On 06/26/18 22:17, Joe Perches wrote:
> > On Tue, 2018-06-26 at 21:44 +0200, Michael Straube wrote:
> > > On 06/26/18 19:32, Andy Shevchenko wrote:
> > > > On Tue, Jun 26, 2018 at 11:14 AM, Michael Straube
> > > > <straube.linux@...il.com> wrote:
> > > > > Use ether_addr_copy() instead of memcpy() to copy the mac address.
[]
> > > > Btw, ensure that the source and destination buffers are aligned to u16
> > > > as required by API.
> > > To be honest I'm not sure how to do that excactly.
> > > Use __align(2) in the array declarations? e.g.:
> > >           u8 mac[ETH_ALEN] __align(2);
> > All initial function automatics are naturally aligned.
> So there is nothing to change? Now I'm confused.

There's nothing to change.  You could add __aligned(2)
if you wanted to, but it's already aligned.