linux-kernel - Re: linux-next: build failure after merge of the driver-core tree

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Message-ID: <20240724090408.01435ce8@canb.auug.org.au>
Date: Wed, 24 Jul 2024 09:04:08 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Greg KH <greg@...ah.com>
Cc: Mark Brown <broonie@...nel.org>, Uwe Kleine-König
 <u.kleine-koenig@...gutronix.de>, Niklas Söderlund
 <niklas.soderlund+renesas@...natech.se>, Andrew Lunn <andrew@...n.ch>,
 "David S. Miller" <davem@...emloft.net>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the driver-core tree

Hi all,

On Mon, 24 Jun 2024 19:23:36 +0100 Mark Brown <broonie@...nel.org> wrote:
>
> After merging the driver-core tree, today's linux-next build
> (x86_64 allmodconfig) failed like this:
> 
> /tmp/next/build/drivers/net/ethernet/renesas/rtsn.c:1381:27: error: initialization of 'void (*)(struct platform_device *)' from incompatible pointer type 'int (*)(struct platform_device *)' [-Werror=incompatible-pointer-types]
>  1381 |         .remove         = rtsn_remove,
>       |                           ^~~~~~~~~~~
> /tmp/next/build/drivers/net/ethernet/renesas/rtsn.c:1381:27: note: (near initialization for 'rtsn_driver.<anonymous>.remove')
> 
> Caused by commit
> 
>   0edb555a65d1e ("platform: Make platform_driver::remove() return void")
> 
> interacting with
> 
>   b0d3969d2b4db ("net: ethernet: rtsn: Add support for Renesas Ethernet-TSN")
> 
> I have applied the below patch.
> 
> From 8f276c3b5b1be09214cbd5643dd4fe4b2e6c692f Mon Sep 17 00:00:00 2001
> From: Mark Brown <broonie@...nel.org>
> Date: Mon, 24 Jun 2024 19:02:24 +0100
> Subject: [PATCH] net: ethernet: rtsn: Fix up for remove() coversion to return
>  void
> 
> Fixes: 0edb555a65d1e ("platform: Make platform_driver::remove() return void")
> Signed-off-by: Mark Brown <broonie@...nel.org>
> ---
>  drivers/net/ethernet/renesas/rtsn.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/renesas/rtsn.c b/drivers/net/ethernet/renesas/rtsn.c
> index ad69d47463cbd..5a6cc99e6b35a 100644
> --- a/drivers/net/ethernet/renesas/rtsn.c
> +++ b/drivers/net/ethernet/renesas/rtsn.c
> @@ -1358,7 +1358,7 @@ static int rtsn_probe(struct platform_device *pdev)
>  	return ret;
>  }
>  
> -static int rtsn_remove(struct platform_device *pdev)
> +static void rtsn_remove(struct platform_device *pdev)
>  {
>  	struct rtsn_private *priv = platform_get_drvdata(pdev);
>  
> @@ -1372,8 +1372,6 @@ static int rtsn_remove(struct platform_device *pdev)
>  	pm_runtime_disable(&pdev->dev);
>  
>  	free_netdev(priv->ndev);
> -
> -	return 0;
>  }
>  
>  static struct platform_driver rtsn_driver = {
> -- 
> 2.39.2
> 

This is now a conflict between the driver-core tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell

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