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Date: Mon, 11 Nov 2013 16:09:09 +0000
From: Grant Likely <grant.likely@...retlab.ca>
To: Pantelis Antoniou <panto@...oniou-consulting.com>
Cc: Rob Herring <robherring2@...il.com>,
Stephen Warren <swarren@...dotorg.org>,
Matt Porter <matt.porter@...aro.org>,
Koen Kooi <koen@...inion.thruhere.net>,
Alison Chaiken <Alison_Chaiken@...tor.com>,
Dinh Nguyen <dinh.linux@...il.com>,
Jan Lubbe <jluebbe@...net.de>,
Alexander Sverdlin <alexander.sverdlin@....com>,
Michael Stickel <ms@...able.de>,
Guenter Roeck <linux@...ck-us.net>,
Dirk Behme <dirk.behme@...il.com>,
Alan Tull <delicious.quinoa@...il.com>,
Sascha Hauer <s.hauer@...gutronix.de>,
Michael Bohan <mbohan@...eaurora.org>,
Ionut Nicu <ioan.nicu.ext@....com>,
Michal Simek <monstr@...str.eu>,
Matt Ranostay <mranostay@...il.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Pantelis Antoniou <panto@...oniou-consulting.com>
Subject: Re: [PATCH 4/5] OF: Export all DT proc update functions
On Tue, 5 Nov 2013 19:50:15 +0200, Pantelis Antoniou <panto@...oniou-consulting.com> wrote:
> There are other users for the proc DT functions.
> Export them.
>
> Signed-off-by: Pantelis Antoniou <panto@...oniou-consulting.com>
These are all very much internal DT APIs. There is no way that anything
outside of drivers/of should ever be calling them. (In fact, I want to
be rid of the /proc/devicetree implementation entirely and put it into
sysfs, but that is a separate patch set). If they need to be broken out
into a header file, can they be put into something like
drivers/of/of_private.h?
g.
> ---
> drivers/of/base.c | 70 ++++++++++++++++++++++++++++++------------------------
> include/linux/of.h | 29 ++++++++++++++++++++++
> 2 files changed, 68 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 0ffc5a9..c3c5391 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -1435,6 +1435,40 @@ int of_property_notify(int action, struct device_node *np,
> }
> #endif
>
> +#ifdef CONFIG_PROC_DEVICETREE
> +
> +void of_add_proc_dt_entry(struct device_node *dn)
> +{
> + struct proc_dir_entry *ent;
> +
> + ent = proc_mkdir(strrchr(dn->full_name, '/') + 1, dn->parent->pde);
> + if (ent)
> + proc_device_tree_add_node(dn, ent);
> +}
> +
> +void of_add_proc_dt_prop_entry(struct device_node *np,
> + struct property *prop)
> +{
> + if (np && prop && np->pde)
> + proc_device_tree_add_prop(np->pde, prop);
> +}
> +
> +void of_remove_proc_dt_prop_entry(struct device_node *np,
> + struct property *prop)
> +{
> + if (np && prop && np->pde)
> + proc_device_tree_remove_prop(np->pde, prop);
> +}
> +
> +void of_update_proc_dt_prop_entry(struct device_node *np,
> + struct property *newprop, struct property *oldprop)
> +{
> + if (np && newprop && oldprop && np->pde)
> + proc_device_tree_update_prop(np->pde, newprop, oldprop);
> +}
> +
> +#endif /* CONFIG_PROC_DEVICETREE */
> +
> /**
> * of_add_property - Add a property to a node
> */
> @@ -1462,11 +1496,8 @@ int of_add_property(struct device_node *np, struct property *prop)
> *next = prop;
> raw_spin_unlock_irqrestore(&devtree_lock, flags);
>
> -#ifdef CONFIG_PROC_DEVICETREE
> /* try to add to proc as well if it was initialized */
> - if (np->pde)
> - proc_device_tree_add_prop(np->pde, prop);
> -#endif /* CONFIG_PROC_DEVICETREE */
> + of_add_proc_dt_prop_entry(np, prop);
>
> return 0;
> }
> @@ -1508,11 +1539,7 @@ int of_remove_property(struct device_node *np, struct property *prop)
> if (!found)
> return -ENODEV;
>
> -#ifdef CONFIG_PROC_DEVICETREE
> - /* try to remove the proc node as well */
> - if (np->pde)
> - proc_device_tree_remove_prop(np->pde, prop);
> -#endif /* CONFIG_PROC_DEVICETREE */
> + of_remove_proc_dt_prop_entry(np, prop);
>
> return 0;
> }
> @@ -1562,11 +1589,8 @@ int of_update_property(struct device_node *np, struct property *newprop)
> if (!found)
> return -ENODEV;
>
> -#ifdef CONFIG_PROC_DEVICETREE
> /* try to add to proc as well if it was initialized */
> - if (np->pde)
> - proc_device_tree_update_prop(np->pde, newprop, oldprop);
> -#endif /* CONFIG_PROC_DEVICETREE */
> + of_update_proc_dt_prop_entry(np, newprop, oldprop);
>
> return 0;
> }
> @@ -1602,22 +1626,6 @@ int of_reconfig_notify(unsigned long action, void *p)
> return notifier_to_errno(rc);
> }
>
> -#ifdef CONFIG_PROC_DEVICETREE
> -static void of_add_proc_dt_entry(struct device_node *dn)
> -{
> - struct proc_dir_entry *ent;
> -
> - ent = proc_mkdir(strrchr(dn->full_name, '/') + 1, dn->parent->pde);
> - if (ent)
> - proc_device_tree_add_node(dn, ent);
> -}
> -#else
> -static void of_add_proc_dt_entry(struct device_node *dn)
> -{
> - return;
> -}
> -#endif
> -
> /**
> * of_attach_node - Plug a device node into the tree and global list.
> */
> @@ -1643,12 +1651,12 @@ int of_attach_node(struct device_node *np)
> }
>
> #ifdef CONFIG_PROC_DEVICETREE
> -static void of_remove_proc_dt_entry(struct device_node *dn)
> +void of_remove_proc_dt_entry(struct device_node *dn)
> {
> proc_remove(dn->pde);
> }
> #else
> -static void of_remove_proc_dt_entry(struct device_node *dn)
> +void of_remove_proc_dt_entry(struct device_node *dn)
> {
> return;
> }
> diff --git a/include/linux/of.h b/include/linux/of.h
> index 6fec255..a56c450 100644
> --- a/include/linux/of.h
> +++ b/include/linux/of.h
> @@ -318,6 +318,35 @@ static inline int of_property_notify(int action, struct device_node *np,
> }
> #endif
>
> +#ifdef CONFIG_PROC_DEVICETREE
> +
> +extern void of_add_proc_dt_entry(struct device_node *dn);
> +extern void of_remove_proc_dt_entry(struct device_node *dn);
> +
> +extern void of_add_proc_dt_prop_entry(struct device_node *np,
> + struct property *prop);
> +
> +extern void of_remove_proc_dt_prop_entry(struct device_node *np,
> + struct property *prop);
> +
> +extern void of_update_proc_dt_prop_entry(struct device_node *np,
> + struct property *newprop, struct property *oldprop);
> +#else
> +
> +static inline void of_add_proc_dt_entry(struct device_node *dn) { }
> +static inline void of_remove_proc_dt_entry(struct device_node *dn) { }
> +
> +static inline void of_add_proc_dt_prop_entry(struct device_node *np,
> + struct property *prop) { }
> +
> +static inline void of_remove_proc_dt_prop_entry(struct device_node *np,
> + struct property *prop) { }
> +
> +static inline void of_update_proc_dt_prop_entry(struct device_node *np,
> + struct property *newprop, struct property *oldprop) { }
> +
> +#endif
> +
> extern void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align));
> extern int of_alias_get_id(struct device_node *np, const char *stem);
>
> --
> 1.7.12
>
--
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