netdev - Re: [PATCH net-next] ath10k: wmi: Convert use of 6 to ETH

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Date:	Thu, 3 Oct 2013 07:54:39 +0300
From:	Kalle Valo <kvalo@....qualcomm.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Joe Perches <joe@...ches.com>, Julia Lawall <julia.lawall@...6.fr>,
	"Luis R. Rodriguez" <mcgrof@...not-panic.com>,
	netdev <netdev@...r.kernel.org>, <ath10k@...ts.infradead.org>,
	"John W. Linville" <linville@...driver.com>
Subject: Re: [PATCH net-next] ath10k: wmi: Convert use of 6 to ETH_ALEN

Eric Dumazet <eric.dumazet@...il.com> writes:

> On Thu, 2013-10-03 at 07:34 +0300, Kalle Valo wrote:
>
>> Do you mean '6' or the union? The 6 can replaced with ETH_ALEN AFAICS.
>> But the union is needed for aligning the packets as firmware expects
>> them.
>
> I mean the 6, of course, since Joe seems to actively track them, as if
> ETH_ALEN could change eventually, you never know.
>
> I am worrying this will take another hundred patches ...

Ah, ok.

> Regarding this union, the __packed attributes seem overkill, no ???

Yeah, they do. This should be enough, right?

struct wmi_mac_addr {
	union {
		u8 addr[6];
		struct {
			u32 word0;
			u32 word1;
		};
	};
} __packed;

-- 
Kalle Valo
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