Re: [PATCH v3] arm: irq: l2c: do not print error in case of missing l2c from dtb

From: Krzysztof Kozlowski
Date: Tue Jan 12 2016 - 18:55:42 EST

On 12.01.2016 19:11, Andi Shyti wrote:
> In some architectures the L2 cache controller is integrated in the
> processor's block itself and it doesn't use any external cache
> controller. This means that an entry in the board's dtb related
> to the l2c is not necessary.
> Distinguish between error codes and do not print anything in case
> l2x0_of_init() doesn't find any L2C DTB entry and returns -ENODEV.
> This patch mutes the following error message:
> L2C: failed to init: -19
> on boards like odroid-xu4, cortex A7/A15, which don't have
> external cache controller.
> Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxx>
> Reported-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> ---
> Hi,
> here is a second version. An alternative would be to print with
> pr_dbg, but then it's a matter of taste.
> V1, and V2 print a message in case the l2c dtb entry is not found
> (the V2 has a better print rephrase suggested by Joe)
> V3 ignores the case of -enodev for l2c and doesn't print anything
> Thanks,
> Andi

Looks good to me, as v2 did. Works fine:
Tested-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>