linux-kernel - Re: [PATCH] fpga: altera-cvp: Fix registration for CvP incapable devices

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: <CANk1AXRDRsmmm8OLStQ1YQjbtfmMqDf75OLeX+VAbybAkMbTmw@mail.gmail.com>
Date:   Tue, 23 Oct 2018 09:53:33 -0500
From:   Alan Tull <atull@...nel.org>
To:     Moritz Fischer <mdf@...nel.org>
Cc:     puhm@...gano.at, linux-fpga@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fpga: altera-cvp: Fix registration for CvP incapable devices

On Tue, Oct 23, 2018 at 4:26 AM Moritz Fischer <mdf@...nel.org> wrote:
>
> Hi Andreas,
>
> we're getting there :) It seems your mail setup is still a bit
> funky though. Did you use git send-email / git format-patch?
>
> On Tue, Oct 23, 2018 at 09:01:39AM +0000, Andreas Puhm wrote:
> > From bfc602900b016f65bc2f183aa93702101a1fdc17 Mon Sep 17 00:00:00 2001
> > From: Andreas Puhm <puhm@...gano.at>
> > Date: Tue, 23 Oct 2018 10:24:10 +0200
> > Subject: [PATCH] fpga: altera-cvp: Fix registration for CvP incapable devices
> >
> > The probe function needs to verify the CvP enable bit in order to properly determine if FPGA Manager functionality can be safely enabled.

Please wrap at 80 chars per line.

Thanks,
Alan

> >
> > Fixes 34d1dc17ce978ae76e676d401b48fe9d004aa948 ("fpga manager: Add Altera CvP driver")
>
> According to [1] this should be the first 12 characters of the SHA-1.
> >
> > Signed-off-by: Andreas Puhm <puhm@...gano.at>
> > ---
> >  drivers/fpga/altera-cvp.c | 9 +++++++++
> >  1 file changed, 9 insertions(+)
> >
> > diff --git a/drivers/fpga/altera-cvp.c b/drivers/fpga/altera-cvp.c
> > index 7fa793672a7a..ece344a56075 100644
> > --- a/drivers/fpga/altera-cvp.c
> > +++ b/drivers/fpga/altera-cvp.c
> > @@ -403,6 +403,7 @@ static int altera_cvp_probe(struct pci_dev *pdev,
> >       struct altera_cvp_conf *conf;
> >       struct fpga_manager *mgr;
> >       u16 cmd, val;
> > +     u32 regval;
> >       int ret;
> >
> >       /*
> > @@ -416,6 +417,14 @@ static int altera_cvp_probe(struct pci_dev *pdev,
> >               return -ENODEV;
> >       }
> >
> > +     pci_read_config_dword(pdev, VSE_CVP_STATUS, &regval);
> > +     if (!(regval & VSE_CVP_STATUS_CVP_EN)) {
> > +             dev_err(&pdev->dev,
> > +                     "CVP is disabled for this device: CVP_STATUS Reg 0x%x\n",
> > +                     regval);
> > +             return -ENODEV;
> > +     }
> > +
> >       conf = devm_kzalloc(&pdev->dev, sizeof(*conf), GFP_KERNEL);
> >       if (!conf)
> >               return -ENOMEM;
> > --
> > 2.18.0.windows.1
> >
>
> It looks like you used Windows / Outlook or something. Please don't send
> patches as attachment.
>
> There's tutorials out there to set up git send-email with GMail for
> example, if your current provider makes using git send-email hard.
>
> [1] https://www.kernel.org/doc/html/v4.19/process/submitting-patches.html
>
> Thanks,
> Moritz