linux-kernel - Re: [PATCH 3/4] net: usb: rtl8150: use usb_control_msg_recv() and usb_control_msg

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Message-ID: <CAOY-YVkciMUgtS7USbBh_Uy_=fVWwMMDeHv=Ub_H3GaY0FKZyQ@mail.gmail.com>
Date:   Wed, 23 Sep 2020 20:02:45 +0530
From:   Himadri Pandya <himadrispandya@...il.com>
To:     Oliver Neukum <oneukum@...e.com>
Cc:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        pankaj.laxminarayan.bharadiya@...el.com,
        Kees Cook <keescook@...omium.org>, yuehaibing@...wei.com,
        petkan@...leusys.com, ogiannou@...il.com,
        USB list <linux-usb@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 3/4] net: usb: rtl8150: use usb_control_msg_recv() and usb_control_msg_send()

On Wed, Sep 23, 2020 at 7:51 PM Oliver Neukum <oneukum@...e.com> wrote:
>
> Am Mittwoch, den 23.09.2020, 19:36 +0530 schrieb Himadri Pandya:
> > On Wed, Sep 23, 2020 at 3:52 PM Oliver Neukum <oneukum@...e.com> wrote:
> > >
> > > Am Mittwoch, den 23.09.2020, 14:35 +0530 schrieb Himadri Pandya:
>
> > > GFP_NOIO is used here for a reason. You need to use this helper
> > > while in contexts of error recovery and runtime PM.
> > >
> >
> > Understood. Apologies for proposing such a stupid change.
>
> Hi,
>
> sorry if you concluded that the patch was stupid. That was not my
> intent. It was the best the API allowed for. If an API makes it
> easy to make a mistake, the problem is with the API, not the developer.
>
>         Regards
>                 Oliver
>

I meant that it was stupid to change it without properly understanding
the significance of GFP_NOIO in this context.

So now, do we re-write the wrapper functions with flag passed as a parameter?

Regards,
Himadri