linux-kernel - Re: [PATCH net v1 1/1] bnx2: Fix unused data compilation warning

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Message-ID: <Z8bcaR9MS7dk8Q0p@smile.fi.intel.com>
Date: Tue, 4 Mar 2025 12:56:41 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rasesh Mody <rmody@...vell.com>, GR-Linux-NIC-Dev@...vell.com,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net v1 1/1] bnx2: Fix unused data compilation warning

On Mon, Mar 03, 2025 at 05:21:14PM -0800, Jakub Kicinski wrote:
> On Fri, 28 Feb 2025 12:05:37 +0200 Andy Shevchenko wrote:
> > In some configuration, compilation raises warnings related to unused
> > data. Indeed, depending on configuration, those data can be unused.
> > 
> > Mark those data as __maybe_unused to avoid compilation warnings.
> 
> Will making dma_unmap_addr access the first argument instead of
> pre-processing down to nothing not work?

I looked at the implementation of those macros and I have no clue
how to do that in a least intrusive way. Otherwise it sounds to me
quite far from the scope of the small compilation error fix that
I presented here.

-- 
With Best Regards,
Andy Shevchenko