netdev - Re: [PATCH net-next v2] net: ti: icssg-prueth: Split out common object into module

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Message-ID: <040eb302-df2b-4ad4-a12d-58aad53f5f39@kernel.org>
Date: Wed, 26 Jun 2024 10:37:23 +0300
From: Roger Quadros <rogerq@...nel.org>
To: MD Danish Anwar <danishanwar@...com>,
 Wolfram Sang <wsa+renesas@...g-engineering.com>,
 Diogo Ivo <diogo.ivo@...mens.com>, Andrew Lunn <andrew@...n.ch>,
 Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
 Eric Dumazet <edumazet@...gle.com>, "David S. Miller" <davem@...emloft.net>
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, srk@...com,
 Vignesh Raghavendra <vigneshr@...com>, kernel test robot <lkp@...el.com>,
 Thorsten Leemhuis <linux@...mhuis.info>
Subject: Re: [PATCH net-next v2] net: ti: icssg-prueth: Split out common
 object into module



On 06/06/2024 10:36, MD Danish Anwar wrote:
> icssg_prueth.c and icssg_prueth_sr1.c drivers use multiple common .c
> files. These common objects are getting added to multiple modules. As a
> result when both drivers are enabled in .config, below warning is seen.
> 
> drivers/net/ethernet/ti/Makefile: icssg/icssg_common.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
> drivers/net/ethernet/ti/Makefile: icssg/icssg_classifier.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
> drivers/net/ethernet/ti/Makefile: icssg/icssg_config.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
> drivers/net/ethernet/ti/Makefile: icssg/icssg_mii_cfg.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
> drivers/net/ethernet/ti/Makefile: icssg/icssg_stats.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
> drivers/net/ethernet/ti/Makefile: icssg/icssg_ethtool.o is added to multiple modules: icssg-prueth icssg-prueth-sr1
> 
> Fix this by building a new module (icssg.o) for all the common objects.
> Both the driver can then depend on this common module.
> 
> This also fixes below error seen when both drivers are built.
> ERROR: modpost: "icssg_queue_pop"
> [drivers/net/ethernet/ti/icssg-prueth-sr1.ko] undefined!
> ERROR: modpost: "icssg_queue_push"
> [drivers/net/ethernet/ti/icssg-prueth-sr1.ko] undefined!
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202405182038.ncf1mL7Z-lkp@intel.com/
> Fixes: 487f7323f39a ("net: ti: icssg-prueth: Add helper functions to configure FDB")
> Signed-off-by: MD Danish Anwar <danishanwar@...com>

Reviewed-by: Roger Quadros <rogerq@...nel.org>