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Date:   Fri, 22 Nov 2019 16:19:45 -0800
From:   Jakub Kicinski <jakub.kicinski@netronome.com>
To:     Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
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        davem@davemloft.net, herbert@gondor.apana.org.au,
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        dt@chelsio.com
Subject: Re: [PATCH net-next v2 1/3] cxgb4/chcr: update SGL DMA unmap for
 USO
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On Fri, 22 Nov 2019 16:06:29 -0800, Jakub Kicinski wrote:
> > -struct tx_sw_desc;
> > +struct ulptx_sgl;  
> 
> From this patch alone the forward declaration of struct ulptx_sgl;
> appears unnecessary or a left over from some previous version of the
> code?

Okay, taking that back, looks like compiler treats use of struct type
in another struct as a forward declaration. Interesting.