[RFC PATCH] usb: reduce kernel log spam on driver registration

[Krzysztof Kozlowski]

On 25/08/2022 20:03, Ard Biesheuvel wrote:
> Drivers are typically supposed to be quiet unless they are actually
> probed, but for some reason, USB host controllers seem to be exempt from
> this rule, and happily broadcast their existence into the kernel log at
> boot even if the hardware in question is nowhere to be found.
> 
> Let's fix that, and remove these pr_info() calls.
> 
> Cc: Alan Stern <stern at rowland.harvard.edu>
> Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org> 
> Cc: Nicolas Ferre <nicolas.ferre at microchip.com>
> Cc: Alexandre Belloni <alexandre.belloni at bootlin.com>
> Cc: Claudiu Beznea <claudiu.beznea at microchip.com>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
> Cc: Alim Akhtar <alim.akhtar at samsung.com>
> Cc: Avi Fishman <avifishman70 at gmail.com>
> Cc: Tomer Maimon <tmaimon77 at gmail.com>
> Cc: Tali Perry <tali.perry1 at gmail.com>
> Cc: Patrick Venture <venture at google.com>
> Cc: Nancy Yuen <yuenn at google.com>
> Cc: Benjamin Fair <benjaminfair at google.com>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Vladimir Zapolskiy <vz at mleia.com>
> Cc: linux-usb at vger.kernel.org
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-kernel at vger.kernel.org
> Cc: linux-samsung-soc at vger.kernel.org
> Cc: linux-omap at vger.kernel.org
> Signed-off-by: Ard Biesheuvel <ardb at kernel.org>
> ---
>  drivers/usb/host/ehci-atmel.c    | 1 -
>  drivers/usb/host/ehci-exynos.c   | 1 -
>  drivers/usb/host/ehci-fsl.c      | 2 --
>  drivers/usb/host/ehci-hcd.c      | 1 -
>  drivers/usb/host/ehci-npcm7xx.c  | 2 --
>  drivers/usb/host/ehci-omap.c     | 2 --
>  drivers/usb/host/ehci-orion.c    | 2 --
>  drivers/usb/host/ehci-pci.c      | 2 --
>  drivers/usb/host/ehci-platform.c | 2 --
>  drivers/usb/host/ehci-spear.c    | 2 --
>  drivers/usb/host/ehci-st.c       | 2 --
>  drivers/usb/host/fotg210-hcd.c   | 1 -
>  drivers/usb/host/ohci-at91.c     | 1 -
>  drivers/usb/host/ohci-da8xx.c    | 1 -
>  drivers/usb/host/ohci-exynos.c   | 1 -
>  drivers/usb/host/ohci-hcd.c      | 1 -
>  drivers/usb/host/ohci-nxp.c      | 2 --
>  drivers/usb/host/ohci-omap.c     | 2 --
>  drivers/usb/host/ohci-pci.c      | 2 --
>  drivers/usb/host/ohci-platform.c | 2 --
>  drivers/usb/host/ohci-pxa27x.c   | 2 --
>  drivers/usb/host/ohci-s3c2410.c  | 1 -
>  drivers/usb/host/ohci-spear.c    | 2 --
>  drivers/usb/host/ohci-st.c       | 2 --


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>


Best regards,
Krzysztof