linux-kernel - Re: [PATCH v1 13/17] iio: chemical: bme680: Add read buffers in DMA safe region

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: <20240602193310.GE387181@vamoiridPC>
Date: Sun, 2 Jun 2024 21:33:10 +0200
From: Vasileios Amoiridis <vassilisamir@...il.com>
To: Jonathan Cameron <jic23@...nel.org>
Cc: Vasileios Amoiridis <vassilisamir@...il.com>, lars@...afoo.de,
	himanshujha199640@...il.com, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 13/17] iio: chemical: bme680: Add read buffers in DMA
 safe region

On Sun, Jun 02, 2024 at 01:59:08PM +0100, Jonathan Cameron wrote:
> On Mon, 27 May 2024 20:38:01 +0200
> Vasileios Amoiridis <vassilisamir@...il.com> wrote:
> 
> > Move the buffers that are used in order to read data from the
> > device in a DMA-safe region. Also create defines for the number
> > of bytes that are being read from the device and don't use
> > magic numbers.
> > 
> > Signed-off-by: Vasileios Amoiridis <vassilisamir@...il.com>
> 
> Same response as previous.  I don't think it's necessary because
> of the custom regmap implementation.
> 
> My first instinct was the same as yours though!
> 
> Jonathan
> 
> 
Well, even if we end up not needing it, I would keep the values inside
the union just becasue it saves some space, and it keeps all the read
buffers in the same place. What do you think?

Cheers,
Vasilis