netdev - Re: [PATCH 17/15] rcuwait: Inform rcuwait_wake_up() users if a wakeup was attempted

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Message-ID: <20200320091341.fglhscnr3sixyzjs@linutronix.de>
Date:   Fri, 20 Mar 2020 10:13:41 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Davidlohr Bueso <dave@...olabs.net>
Cc:     tglx@...utronix.de, arnd@...db.de, balbi@...nel.org,
        bhelgaas@...gle.com, davem@...emloft.net,
        gregkh@...uxfoundation.org, joel@...lfernandes.org,
        kurt.schwemmer@...rosemi.com, kvalo@...eaurora.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-wireless@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, logang@...tatee.com,
        mingo@...nel.org, mpe@...erman.id.au, netdev@...r.kernel.org,
        oleg@...hat.com, paulmck@...nel.org, peterz@...radead.org,
        rdunlap@...radead.org, rostedt@...dmis.org,
        torvalds@...ux-foundation.org, will@...nel.org,
        Davidlohr Bueso <dbueso@...e.de>
Subject: Re: [PATCH 17/15] rcuwait: Inform rcuwait_wake_up() users if a
 wakeup was attempted

On 2020-03-20 01:55:25 [-0700], Davidlohr Bueso wrote:
> Let the caller know if wake_up_process() was actually called or not;
> some users can use this information for ad-hoc. Of course returning
> true does not guarantee that wake_up_process() actually woke anything
> up.

Wouldn't it make sense to return wake_up_process() return value to know
if a change of state occurred or not?

Sebastian