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Date:	Thu, 15 Jan 2015 18:16:15 -0500 (EST)
From:	David Miller <>
Subject: Re: [patch-net-next v2 3/3] net: ethernet: cpsw: don't requests
 IRQs we don't use

From: Felipe Balbi <>
Date: Thu, 15 Jan 2015 09:20:53 -0600

> On Thu, Jan 15, 2015 at 01:19:16PM +0530, Mugunthan V N wrote:
>> On Wednesday 14 January 2015 10:28 PM, Felipe Balbi wrote:
>> > CPSW never uses RX_THRESHOLD or MISC interrupts. In
>> > fact, they are always kept masked in their appropriate
>> > IRQ Enable register.
>> > 
>> > Instead of allocating an IRQ that never fires, it's best
>> > to remove that code altogether and let future patches
>> > implement it if anybody needs those.
>> > 
>> > Signed-off-by: Felipe Balbi <>
>> Instead of introducing dummy ISR in previous patch and then removing in
>> this patch, both can be squashed into a single patch.
> sure they can. I decided to split to ease review and to make sure only
> one thing happens in a single patch.

Indeed, I agree that adding something as a placeholder that just gets
immediately removed should be avoided unless it is extremely difficult
to do so.
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