netdev - Re: [PATCH v2 net-next 11/15] net: ethernet: mtk_eth

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Date:   Wed, 18 May 2022 11:48:43 +0200
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, nbd@....name, john@...ozen.org,
        sean.wang@...iatek.com, Mark-MC.Lee@...iatek.com,
        davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        Sam.Shih@...iatek.com, linux-mediatek@...ts.infradead.org,
        devicetree@...r.kernel.org, robh@...nel.org,
        lorenzo.bianconi@...hat.com
Subject: Re: [PATCH v2 net-next 11/15] net: ethernet: mtk_eth_soc: introduce
 device register map

> On Mon, 16 May 2022 18:06:38 +0200 Lorenzo Bianconi wrote:
> >  /* PDMA RX Base Pointer Register */
> > -#define MTK_PRX_BASE_PTR0	0x900
> > +#define MTK_PRX_BASE_PTR0	(eth->soc->reg_map[MTK_PDMA_BASE] + 0x100)
> >  #define MTK_PRX_BASE_PTR_CFG(x)	(MTK_PRX_BASE_PTR0 + (x * 0x10))
> 
> Implicit macro arguments are really unpleasant for people doing
> tree-wide changes or otherwise unfamiliar with the driver.
> 
> Nothing we can do to avoid this?

I used this approach in order to have just few changes in the codebase. I guess the best
option would be to explicitly add eth parameter to the register macros, what do you think?

Regards,
Lorenzo

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