From: Joe Perches <joe@perches.com>
To: David Miller <davem@davemloft.net>
Cc: mugunthanvnm@ti.com, netdev@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org
Subject: Re: [PATCH v2 1/1] drivers: net: davinci_cpdma: acknowledge interrupt properly
Date: Fri, 15 Feb 2013 12:18:59 -0800 [thread overview]
Message-ID: <1360959539.21068.5.camel@joe-AO722> (raw)
In-Reply-To: <20130215.150506.499818568035818118.davem@davemloft.net>
On Fri, 2013-02-15 at 15:05 -0500, David Miller wrote:
> From: Mugunthan V N <mugunthanvnm@ti.com>
> Date: Thu, 14 Feb 2013 23:56:46 +0530
>
> > +enum {
> > + CPDMA_EOI_RX_THRESH = 0,
> > + CPDMA_EOI_RX,
> > + CPDMA_EOI_TX,
> > + CPDMA_EOI_MISC,
> > +};
>
> Do not use enumerations for hardware register values, which must be
> exact, otherwise you are potentially going to succumb to the vagaries
> of C language enumeration value assignment.
Vagaries?
In what way is c enumeration (6.7.2.2) vague?
char vs int? Isn't smaller mostly better?
Concern about possible future reordering given an
insertion or deletion might be the only consideration
I could imagine.
next prev parent reply other threads:[~2013-02-15 20:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-14 18:26 [PATCH v2 1/1] drivers: net: davinci_cpdma: acknowledge interrupt properly Mugunthan V N
2013-02-15 20:05 ` David Miller
2013-02-15 20:05 ` David Miller
2013-02-17 9:35 ` Mugunthan V N
2013-02-15 20:18 ` Joe Perches [this message]
2013-02-15 20:20 ` David Miller
2013-02-17 9:34 ` Mugunthan V N
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