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  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]
Date:   Fri, 29 May 2020 00:27:35 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek Vasut <marex@...x.de>
Cc:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
        Lukas Wunner <lukas@...ner.de>, Petr Stetiar <ynezz@...e.cz>,
        YueHaibing <yuehaibing@...wei.com>
Subject: Re: [PATCH V7 07/19] net: ks8851: Remove ks8851_rdreg32()

On Fri, May 29, 2020 at 12:21:34AM +0200, Marek Vasut wrote:
> The ks8851_rdreg32() is used only in one place, to read two registers
> using a single read. To make it easier to support 16-bit accesses via
> parallel bus later on, replace this single read with two 16-bit reads
> from each of the registers and drop the ks8851_rdreg32() altogether.
> 
> If this has noticeable performance impact on the SPI variant of KS8851,
> then we should consider using regmap to abstract the SPI and parallel
> bus options and in case of SPI, permit regmap to merge register reads
> of neighboring registers into single, longer, read.
> 
> Signed-off-by: Marek Vasut <marex@...x.de>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew

Powered by blists - more mailing lists