netdev - Re: [PATCH 1/1] net: mvpp2: clear BM pool before initialization

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZaZLuPyRa5QhRrmH@shell.armlinux.org.uk>
Date: Tue, 16 Jan 2024 09:26:16 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Jenishkumar Maheshbhai Patel <jpatel2@...vell.com>
Cc: marcin.s.wojtas@...il.com, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] net: mvpp2: clear BM pool before initialization

On Mon, Jan 15, 2024 at 09:57:54PM -0800, Jenishkumar Maheshbhai Patel wrote:
>  static int mvpp2_bm_init(struct device *dev, struct mvpp2 *priv)
>  {
>  	enum dma_data_direction dma_dir = DMA_FROM_DEVICE;
>  	int i, err, poolnum = MVPP2_BM_POOLS_NUM;
>  	struct mvpp2_port *port;
>  
> +	if (priv->percpu_pools)
> +		poolnum = mvpp2_get_nrxqs(priv) * 2;
> +
> +	for (i = 0; i < poolnum; i++) {
> +		/* Make sure about the pool state in case it was
> +		 * used by firmware.
> +		 */
> +		mvpp2_bm_pool_cleanup(priv, i);
> +	}

	/* Clean up the pool state in case it contains stale state */
	for (i = 0; i < poolnum; i++)
		mvpp2_bm_pool_cleanup(priv, i);

Doesn't need quite as many lines!

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!