linux-kernel - Re: [PATCH v2 1/2] of: add optional options parameter to of_find_node_by

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CACxGe6tQ5rWzCUcS+_fFY+rjEyua2khApAoCVKpTuJAghU=N_w@mail.gmail.com>
Date:	Wed, 26 Nov 2014 21:06:33 +0000
From:	Grant Likely <grant.likely@...aro.org>
To:	Leif Lindholm <leif.lindholm@...aro.org>
Cc:	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Mark Rutland <mark.rutland@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	Ian Campbell <ijc@...ian.org>, Andrew Lunn <andrew@...n.ch>,
	"s.hauer@...gutronix.de" <s.hauer@...gutronix.de>
Subject: Re: [PATCH v2 1/2] of: add optional options parameter to of_find_node_by_path()

On Wed, Nov 26, 2014 at 5:40 PM, Leif Lindholm <leif.lindholm@...aro.org> wrote:
> Update of_find_node_by_path():
> 1) Ignore any part of the path beyond and including the ':' separator.
> 2) Set the new provided pointer argument to the beginning of the string
>    following the ':' separator.
>
> Coccinelle fixup using:
>
> @@
> expression E1;
> @@
>
> - of_find_node_by_path(E1)
> + of_find_node_by_path(E1, NULL)
>
> drivers/of/resolver.c manually updated, since spatch fails to parse
> it correctly.
>
> Signed-off-by: Leif Lindholm <leif.lindholm@...aro.org>

Okay, so you're probably going to kill me for the next comment...
After actually looking at this I can see that it's going to be a hard
patch to merge because of conflicts. It will need to be merged at the
end of a merge window to catch all the users, but that will mean that
the important part of the patch won't be able to be queued up in
linux-next.

So you were right the first time around. Create a new function name
that adds the extra argument and make of_find_node_by_path() a static
inline wrapper. That way I can queue it up into linux-next immediately
and the cleanup across the tree can be generated and submitted at the
very end of the merge window.

> @@ -380,7 +380,8 @@ static inline struct device_node *of_find_matching_node_and_match(
>         return NULL;
>  }
>
> -static inline struct device_node *of_find_node_by_path(const char *path)
> +static inline struct device_node *of_find_node_by_path(const char *path,
> +       char **opts)

const char **opts

>  {
>         return NULL;
>  }
> diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
> index e695517..0056963 100644
> --- a/sound/soc/fsl/fsl_ssi.c
> +++ b/sound/soc/fsl/fsl_ssi.c
> @@ -1427,7 +1427,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
>          * device tree.  We also pass the address of the CPU DAI driver
>          * structure.
>          */
> -       sprop = of_get_property(of_find_node_by_path("/"), "compatible", NULL);
> +       sprop = of_get_property(of_find_node_by_path("/", NULL), "compatible", NULL);
>         /* Sometimes the compatible name has a "fsl," prefix, so we strip it. */
>         p = strrchr(sprop, ',');
>         if (p)
> --
> 1.7.10.4
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/