linux-kernel - Re: [PATCH v2 10/21] staging: rtl8192e: replace memcpy() -> ether_addr_copy

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Message-ID: <552ED354.7000004@gmail.com>
Date:	Wed, 15 Apr 2015 23:08:36 +0200
From:	Mateusz Kulikowski <mateusz.kulikowski@...il.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
CC:	gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 10/21] staging: rtl8192e: replace memcpy() -> ether_addr_copy_unaligned()

On 14.04.2015 10:00, Dan Carpenter wrote:
> BAReq->addr1 is part of struct rtllib_hdr_2addr.  It's 4 bytes into
> the struct so it's fine.
You're right - should I explicitly add __aligned() in such places or just 
leave comment in that case (for future commiters)?

> I sort of like the ether_addr_copy_unaligned() macro because it would
> let us silence some checkpatch false positives because otherwise people
> will eventually introduce bugs like a dripping roof leak will eventually
> destroy a building.  But it should be in the main kernel header with a
> name like that.  And also this is misleading that we are using it for
> data which is aligned.

Is it ok if I do following steps for v3:
- Align eth addresses that can be aligned (at least one structure - rtllib_rxb can't be aligned)
- Apply eth_addr_copy where possible
- Discuss and try to submit ether_addr_copy_unaligned on netdev list
- If they reject the change - rename macro to something less confusing (rtllib_something)

Regards and thanks for reviews,
Mateusz

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