linux-kernel - Re: [PATCH] i2c: qcom-geni: Fix GPI DMA buffer sync-back

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] [day] [month] [year] [list]

Message-ID: <YvTyt4nmOZqQYSCa@shikoro>
Date:   Thu, 11 Aug 2022 14:14:47 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Robin Reckmann <robin.reckmann@...glemail.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Robin Reckmann <robin.reckmann@...il.com>,
        linux-arm-msm@...r.kernel.org, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH] i2c: qcom-geni: Fix GPI DMA buffer sync-back

On Sun, Aug 07, 2022 at 11:04:54PM +0900, Robin Reckmann wrote:
> Fix i2c transfers using GPI DMA mode for all message types that do not set
> the I2C_M_DMA_SAFE flag (e.g. SMBus "read byte").
> 
> In this case a bounce buffer is returned by i2c_get_dma_safe_msg_buf(),
> and it has to synced back to the message after the transfer is done.
> 
> Add missing assignment of dma buffer in geni_i2c_gpi().
> 
> Set xferred in i2c_put_dma_safe_msg_buf() to true in case of no error to
> ensure the sync-back of this dma buffer to the message.
> 
> Signed-off-by: Robin Reckmann <robin.reckmann@...il.com>

Applied to for-current, thanks!


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