linux-kernel - Re: [PATCH v2] misc: sgi-gru: use explicitly signed char

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Date:   Tue, 25 Oct 2022 14:10:50 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v2] misc: sgi-gru: use explicitly signed char

On Tue, Oct 25, 2022 at 09:38:45AM +0200, Greg Kroah-Hartman wrote:
> On Tue, Oct 25, 2022 at 04:52:23AM +0200, Jason A. Donenfeld wrote:
> > With char becoming unsigned by default, and with `char` alone being
> > ambiguous and based on architecture, signed chars need to be marked
> > explicitly as such. This fixes warnings like:
> > 
> > drivers/misc/sgi-gru/grumain.c:711 gru_check_chiplet_assignment() warn: 'gts->ts_user_chiplet_id' is unsigned
> > 
> > Cc: Dimitri Sivanich <dimitri.sivanich@....com>
> > Cc: Arnd Bergmann <arnd@...db.de>
> > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
> > ---
> >  drivers/misc/sgi-gru/grumain.c   |  6 +++---
> >  drivers/misc/sgi-gru/grutables.h | 14 +++++++-------
> >  2 files changed, 10 insertions(+), 10 deletions(-)
> 
> Hi,
> 
> This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
> a patch that has triggered this response.  He used to manually respond
> to these common problems, but in order to save his sanity (he kept
> writing the same thing over and over, yet to different people), I was
> created.  Hopefully you will not take offence and will fix the problem
> in your patch and resubmit it so that it can be accepted into the Linux
> kernel tree.
> 
> You are receiving this message because of the following common error(s)
> as indicated below:
> 
> - This looks like a new version of a previously submitted patch, but you
>   did not list below the --- line any changes from the previous version.
>   Please read the section entitled "The canonical patch format" in the
>   kernel file, Documentation/SubmittingPatches for what needs to be done
>   here to properly describe this.

I fixed the kbuild errors that v2 was a reply to. Specifically, I fixed
up the function prototypes in grutables.h.

Jason