linux-kernel - Re: [PATCH net-next v2 2/3] net: ethernet: ti: Register the RPMsg driver as network device

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Message-ID: <c1380aa4-d8ae-4e77-88a8-59555dffdd57@ti.com>
Date: Mon, 3 Jun 2024 14:56:53 +0530
From: Yojana Mallik <y-mallik@...com>
To: kernel test robot <lkp@...el.com>, <schnelle@...ux.ibm.com>,
        <wsa+renesas@...g-engineering.com>, <diogo.ivo@...mens.com>,
        <rdunlap@...radead.org>, <horms@...nel.org>, <vigneshr@...com>,
        <rogerq@...com>, <danishanwar@...com>, <pabeni@...hat.com>,
        <kuba@...nel.org>, <edumazet@...gle.com>, <davem@...emloft.net>
CC: <llvm@...ts.linux.dev>, <oe-kbuild-all@...ts.linux.dev>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <srk@...com>,
        <rogerq@...nel.org>, <s-vadapalli@...com>, <y-mallik@...com>
Subject: Re: [PATCH net-next v2 2/3] net: ethernet: ti: Register the RPMsg
 driver as network device



On 6/1/24 08:43, kernel test robot wrote:
> Hi Yojana,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on net-next/main]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Yojana-Mallik/net-ethernet-ti-RPMsg-based-shared-memory-ethernet-driver/20240531-144258
> base:   net-next/main
> patch link:    https://lore.kernel.org/r/20240531064006.1223417-3-y-mallik%40ti.com
> patch subject: [PATCH net-next v2 2/3] net: ethernet: ti: Register the RPMsg driver as network device
> config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240601/202406011038.AwLZhQpy-lkp@intel.com/config)
> compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240601/202406011038.AwLZhQpy-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202406011038.AwLZhQpy-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
>>> drivers/net/ethernet/ti/inter_core_virt_eth.c:76:6: warning: variable 'ret' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
>       76 |         if (wait) {
>          |             ^~~~
>    drivers/net/ethernet/ti/inter_core_virt_eth.c:87:9: note: uninitialized use occurs here
>       87 |         return ret;
>          |                ^~~
>    drivers/net/ethernet/ti/inter_core_virt_eth.c:76:2: note: remove the 'if' if its condition is always true
>       76 |         if (wait) {
>          |         ^~~~~~~~~
>    drivers/net/ethernet/ti/inter_core_virt_eth.c:65:9: note: initialize the variable 'ret' to silence this warning
>       65 |         int ret;
>          |                ^
>          |                 = 0
>    drivers/net/ethernet/ti/inter_core_virt_eth.c:330:24: error: use of undeclared identifier 'icve_del_mc_addr'
>      330 |         __dev_mc_unsync(ndev, icve_del_mc_addr);
>          |                               ^
>    drivers/net/ethernet/ti/inter_core_virt_eth.c:331:26: error: no member named 'mc_list' in 'struct icve_common'
>      331 |         __hw_addr_init(&common->mc_list);
>          |                         ~~~~~~  ^
>    drivers/net/ethernet/ti/inter_core_virt_eth.c:337:28: error: no member named 'rx_mode_work' in 'struct icve_common'
>      337 |         cancel_work_sync(&common->rx_mode_work);
>          |                           ~~~~~~  ^
>    1 warning and 3 errors generated.
> 
> 
> vim +76 drivers/net/ethernet/ti/inter_core_virt_eth.c
> 
>     59	
>     60	static int icve_create_send_request(struct icve_common *common,
>     61					    enum icve_rpmsg_type rpmsg_type,
>     62					    bool wait)
>     63	{
>     64		unsigned long flags;
>     65		int ret;
>     66	
>     67		if (wait)
>     68			reinit_completion(&common->sync_msg);
>     69	
>     70		spin_lock_irqsave(&common->send_msg_lock, flags);
>     71		create_request(common, rpmsg_type);
>     72		rpmsg_send(common->rpdev->ept, (void *)(&common->send_msg),
>     73			   sizeof(common->send_msg));
>     74		spin_unlock_irqrestore(&common->send_msg_lock, flags);
>     75	
>   > 76		if (wait) {
>     77			ret = wait_for_completion_timeout(&common->sync_msg,
>     78							  ICVE_REQ_TIMEOUT);
>     79	
>     80			if (!ret) {
>     81				dev_err(common->dev, "Failed to receive response within %ld jiffies\n",
>     82					ICVE_REQ_TIMEOUT);
>     83				ret = -ETIMEDOUT;
>     84				return ret;
>     85			}
>     86		}
>     87		return ret;
>     88	}
>     89	
> 

I will fix all these issues in v3.

Regards,
Yojana Mallik