linux-kernel - Re: [PATCH v8 15/19] staging: r8188eu: change the type of a variable in rtw

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Date:   Mon, 20 Sep 2021 21:54:41 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Pavel Skripkin <paskripkin@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        David Laight <david.Laight@...lab.com>,
        Martin Kaiser <martin@...ser.cx>
Subject: Re: [PATCH v8 15/19] staging: r8188eu: change the type of a variable in rtw_read16()

On Monday, September 20, 2021 9:01:33 PM CEST Dan Carpenter wrote:
> On Mon, Sep 20, 2021 at 06:17:36PM +0200, Fabio M. De Francesco wrote:
> > On Monday, September 20, 2021 3:10:36 PM CEST Dan Carpenter wrote:

> > Back to the code... uninitialised data is not a problem in the old code, 
it's 
> > just bad design. The new code cannot affect runtime, it's just better 
design. 
> 
> It would be a problem for KMSan and the kbuild-bot will email you about
> it.  From your commit message "Change the type of "data" from __le32 to
> __le16." it's not clear you understand why the kbuild-bot will email you
> and why it's correct to do so.

I guess that for sure you are right in saying that it is not entirely clear 
why the kbuild-bot will email me. However, since the change is correct, but 
the commit message is not, I confirm that we'll use your note with only a 
slight change (only if you agree): replace KASan with KMSan in your text.

Thanks,

Fabio  
 
> regards,
> dan carpenter