linux-kernel - Re: [PATCH v2 06/10] soc: aspeed: lpc-snoop: Rearrange channel paths

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: <20250704173443.3436f535@endymion>
Date: Fri, 4 Jul 2025 17:34:43 +0200
From: Jean Delvare <jdelvare@...e.de>
To: Andrew Jeffery <andrew@...econstruct.com.au>
Cc: linux-aspeed@...ts.ozlabs.org, Joel Stanley <joel@....id.au>, Henry
 Martin <bsdhenrymartin@...il.com>, Patrick Rudolph
 <patrick.rudolph@...ements.com>, Andrew Geissler <geissonator@...oo.com>,
 Ninad Palsule <ninad@...ux.ibm.com>, Patrick Venture <venture@...gle.com>,
 Robert Lippert <roblip@...il.com>, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 06/10] soc: aspeed: lpc-snoop: Rearrange channel
 paths

On Mon, 16 Jun 2025 22:43:43 +0930, Andrew Jeffery wrote:
> Order assignments such that tests for conditions not involving resource
> acquisition are ordered before those testing acquired resources, and
> order managed resource acquisition before unmanaged where possible. This
> way we minimise the amount of manual cleanup required.
> 
> In the process, improve readability of the code by introducing a channel
> pointer that takes the place of the repeated object lookups.
> 
> Acked-by: Jean Delvare <jdelvare@...e.de>
> Signed-off-by: Andrew Jeffery <andrew@...econstruct.com.au>
> ---
>  drivers/soc/aspeed/aspeed-lpc-snoop.c | 51 ++++++++++++++++++++---------------
>  1 file changed, 29 insertions(+), 22 deletions(-)
> (...)
> @@ -238,6 +240,7 @@ static int aspeed_lpc_enable_snoop(struct aspeed_lpc_snoop *lpc_snoop,
>  		goto err_misc_deregister;
>  	}
>  
> +	/* Enable LPC snoop channel at requested port */
>  	regmap_update_bits(lpc_snoop->regmap, HICR5, hicr5_en, hicr5_en);
>  	regmap_update_bits(lpc_snoop->regmap, SNPWADR, snpwadr_mask,
>  			   lpc_port << snpwadr_shift);

This duplicates a comment which is already present in the driver a few
lines before.

This duplicated comment gets cleaned up later in patch 10/10 (soc:
aspeed: lpc-snoop: Lift channel config to const structs).

-- 
Jean Delvare
SUSE L3 Support