linux-kernel - Re: [PATCH v2] i2c: tegra-bpmp: ignore DMA safe buffer flag

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: <20210111214221.GF17475@kunai>
Date:   Mon, 11 Jan 2021 22:42:21 +0100
From:   Wolfram Sang <wsa@...nel.org>
To:     Mikko Perttunen <mperttunen@...dia.com>
Cc:     thierry.reding@...il.com, jonathanh@...dia.com, talho@...dia.com,
        linux-i2c@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, Muhammed Fazal <mfazale@...dia.com>,
        stable@...r.kernel.org
Subject: Re: [PATCH v2] i2c: tegra-bpmp: ignore DMA safe buffer flag

On Mon, Jan 11, 2021 at 05:58:16PM +0200, Mikko Perttunen wrote:
> From: Muhammed Fazal <mfazale@...dia.com>
> 
> Ignore I2C_M_DMA_SAFE flag as it does not make a difference
> for bpmp-i2c, but causes -EINVAL to be returned for valid
> transactions.

I wonder if bailing out on an unknown flag shouldn't be revisited in
general? I mean this will happen again when a new I2C_M_* flag is
introduced.


Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)