linux-kernel - Re: [PATCH 2/8] i2c: i2c-qcom-geni: Signify successful driver probe

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Message-ID: <20190605141812.GA962@kunai>
Date:   Wed, 5 Jun 2019 16:18:12 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Johan Hovold <johan@...nel.org>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>, balbi@...nel.org,
        wsa+renesas@...g-engineering.com, gregkh@...uxfoundation.org,
        linus.walleij@...aro.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, david.brown@...aro.org,
        alokc@...eaurora.org, kramasub@...eaurora.org,
        linux-i2c@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, andy.gross@...aro.org,
        jlhugo@...il.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/8] i2c: i2c-qcom-geni: Signify successful driver probe


> To enable dynamic debugging in driver core you could use something like
> 
> 	CONFIG_CMDLINE="dyndbg=\"func really_probe =p\""
> 
> That gives you two printouts per successful probe, for example:
> 
> 	bus: 'usb-serial': really_probe: probing driver edgeport_ti_1 with device ttyUSB0
> 	bus: 'usb-serial': really_probe: bound device ttyUSB0 to driver edgeport_ti_1

I agree that this scales much better than adding strings to every
driver. Also, the driver core will report failed probes other than
-ENODEV, or?

Regarding this patch, however, I don't care much. I'll let the driver
maintainers decide.


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