linux-kernel - Re: [PATCH v3] of: overlay: log the error cause on resolver failure

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Message-ID: <20200302173145.GA13073@bogus>
Date:   Mon, 2 Mar 2020 11:31:45 -0600
From:   Rob Herring <robh@...nel.org>
To:     Luca Ceresoli <luca@...aceresoli.net>
Cc:     devicetree@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Frank Rowand <frowand.list@...il.com>,
        linux-kernel@...r.kernel.org, Luca Ceresoli <luca@...aceresoli.net>
Subject: Re: [PATCH v3] of: overlay: log the error cause on resolver failure

On Fri, 28 Feb 2020 09:40:27 +0100, Luca Ceresoli wrote:
> When a DT overlay has a node label that is not present in the live
> devicetree symbols table, this error is printed:
> 
>   OF: resolver: overlay phandle fixup failed: -22
>   create_overlay: Failed to create overlay (err=-22)
> 
> which does not help much in finding the node label that caused the problem
> and fix the overlay source.
> 
> Add an error message with the name of the node label that caused the
> error. The new output is:
> 
>   OF: resolver: node label 'gpio9' not found in live devicetree symbols table
>   OF: resolver: overlay phandle fixup failed: -22
>   create_overlay: Failed to create overlay (err=-22)
> 
> Signed-off-by: Luca Ceresoli <luca@...aceresoli.net>
> 
> ---
> 
> Changed in v3:
>  - add only the message from v1, but as reworded by Frank
> 
> Changed in v2:
>  - add a message for each error path that does not have one yet
> ---
>  drivers/of/resolver.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 

Applied, thanks.

Rob