linux-kernel - RE: [EXT] Re: [net-next PATCH 1/3] octeontx2-af: debugfs: Minor changes.

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Date:   Tue, 26 Oct 2021 09:44:18 +0000
From:   Rakesh Babu Saladi <rsaladi2@...vell.com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Sunil Kovvuri Goutham <sgoutham@...vell.com>,
        Geethasowjanya Akula <gakula@...vell.com>,
        Subbaraya Sundeep Bhatta <sbhatta@...vell.com>,
        Hariprasad Kelam <hkelam@...vell.com>
Subject: RE: [EXT] Re: [net-next PATCH 1/3] octeontx2-af: debugfs: Minor
 changes.

Hi Jakub,

Please see inline.

Thanks,
Rakesh.

-----Original Message-----
From: Jakub Kicinski <kuba@...nel.org> 
Sent: Tuesday, October 26, 2021 6:43 AM
To: Rakesh Babu Saladi <rsaladi2@...vell.com>
Cc: davem@...emloft.net; netdev@...r.kernel.org; linux-kernel@...r.kernel.org; Sunil Kovvuri Goutham <sgoutham@...vell.com>; Geethasowjanya Akula <gakula@...vell.com>; Subbaraya Sundeep Bhatta <sbhatta@...vell.com>; Hariprasad Kelam <hkelam@...vell.com>
Subject: [EXT] Re: [net-next PATCH 1/3] octeontx2-af: debugfs: Minor changes.

External Email

----------------------------------------------------------------------
On Tue, 26 Oct 2021 00:44:40 +0530 Rakesh Babu wrote:
>  	cmd_buf = memdup_user(buffer, count + 1);
> -	if (IS_ERR(cmd_buf))
> +	if (IS_ERR_OR_NULL(cmd_buf))
>  		return -ENOMEM;

memdup_user() returns NULL now?

Rakesh > I checked now. It is not returning NULL. I'll revert this change.

>  	cmd_buf[count] = '\0';
> @@ -504,7 +504,7 @@ static ssize_t rvu_dbg_qsize_write(struct file *filp,
>  	if (cmd_buf)
>  		ret = -EINVAL;
>  
> -	if (!strncmp(subtoken, "help", 4) || ret < 0) {
> +	if (ret < 0 || !strncmp(subtoken, "help", 4)) {

The commit message does not mention this change.
Rakesh >> ACK. Will address this in v2.

>  		dev_info(rvu->dev, "Use echo <%s-lf > qsize\n", blk_string);
>  		goto qsize_write_done;
>  	}

> diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c 
> b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
> index 7761dcf17b91..d8b1948aaa0a 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
> +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
> @@ -2583,6 +2583,9 @@ static void nix_free_tx_vtag_entries(struct rvu *rvu, u16 pcifunc)
>  		return;
>  
>  	nix_hw = get_nix_hw(rvu->hw, blkaddr);
> +	if (!nix_hw)
> +		return;

This does not fall under "remove unwanted characters, indenting the code" either.
Rakesh >> ACK. I'll address this in v2.