On 06/02/16 08:14, Rob Herring wrote:
> Clean-up all the DT printk functions to use common pr_fmt prefix.
> 
> Some print statements such as kmalloc errors were redundant, so just
> drop those.
> 
> Cc: Frank Rowand <frowand.l...@gmail.com>
> Cc: Pantelis Antoniou <pantelis.anton...@konsulko.com>
> Signed-off-by: Rob Herring <r...@kernel.org>
> ---
>  drivers/of/address.c         | 49 
> ++++++++++++++++++++++----------------------
>  drivers/of/base.c            | 11 ++++++----
>  drivers/of/dynamic.c         | 47 +++++++++++++++++++++---------------------
>  drivers/of/fdt.c             | 12 +++++------
>  drivers/of/fdt_address.c     | 35 ++++++++++++++++---------------
>  drivers/of/irq.c             |  2 ++
>  drivers/of/of_numa.c         | 22 ++++++--------------
>  drivers/of/of_pci.c          |  6 ++++--
>  drivers/of/of_reserved_mem.c | 22 ++++++++++----------
>  drivers/of/overlay.c         | 43 +++++++++++++++-----------------------
>  drivers/of/platform.c        | 16 +++++++--------
>  drivers/of/resolver.c        |  2 ++
>  12 files changed, 130 insertions(+), 137 deletions(-)
> 

Nice cleanup.  A couple of comments below.

Reviewed-by: Frank Rowand <frank.row...@am.sony.com>

< snip >

> diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
> index 0f2784b..e5764c5 100644
> --- a/drivers/of/of_numa.c
> +++ b/drivers/of/of_numa.c
> @@ -16,6 +16,8 @@
>   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
>   */
>  
> +#define pr_fmt(fmt)  "OF: " fmt
> +
>  #include <linux/of.h>
>  #include <linux/of_address.h>
>  #include <linux/nodemask.h>
> @@ -65,11 +67,7 @@ static int __init of_numa_parse_memory_nodes(void)
>       u32 nid;
>       int r = 0;
>  
> -     for (;;) {
> -             np = of_find_node_by_type(np, "memory");
> -             if (!np)
> -                     break;
> -
> +     for_each_node_by_type(np, "memory") {
>               r = of_property_read_u32(np, "numa-node-id", &nid);
>               if (r == -EINVAL)
>                       /*
> @@ -83,18 +81,10 @@ static int __init of_numa_parse_memory_nodes(void)
>                       break;
>  
>               r = of_address_to_resource(np, 0, &rsrc);
> -             if (r) {
> -                     pr_err("NUMA: bad reg property in memory node\n");
> -                     break;
> -             }
> -
> -             pr_debug("NUMA:  base = %llx len = %llx, node = %u\n",
> -                      rsrc.start, rsrc.end - rsrc.start + 1, nid);
> -
> -             r = numa_add_memblk(nid, rsrc.start,

Missing declaration: int i;

Calling of_address_to_resource() with index > 0 and then calling
numa_add_memblk() with the resulting resource(s) is a change in
functionality.  This should be in a separate patch.
 
> +             for (i = 0; !r; i++, r = of_address_to_resource(np, i, &rsrc)) {
> +                     r = numa_add_memblk(nid, rsrc.start,
>                                   rsrc.end - rsrc.start + 1);
> -             if (r)
> -                     break;
> +             }
>       }
>       of_node_put(np);
>  

< snip >

> diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
> index 8225081..318dbb5 100644
> --- a/drivers/of/overlay.c
> +++ b/drivers/of/overlay.c
> @@ -8,7 +8,9 @@
>   * modify it under the terms of the GNU General Public License
>   * version 2 as published by the Free Software Foundation.
>   */
> -#undef DEBUG
> +
> +#define pr_fmt(fmt)  "OF: overlay: " fmt
> +
>  #include <linux/kernel.h>
>  #include <linux/module.h>
>  #include <linux/of.h>
> @@ -137,8 +139,8 @@ static int of_overlay_apply_one(struct of_overlay *ov,
>       for_each_property_of_node(overlay, prop) {
>               ret = of_overlay_apply_single_property(ov, target, prop);
>               if (ret) {
> -                     pr_err("%s: Failed to apply prop @%s/%s\n",
> -                             __func__, target->full_name, prop->name);
> +                     pr_err("Failed to apply prop @%s/%s\n",
> +                            target->full_name, prop->name);
>                       return ret;
>               }
>       }
> @@ -146,9 +148,8 @@ static int of_overlay_apply_one(struct of_overlay *ov,
>       for_each_child_of_node(overlay, child) {
>               ret = of_overlay_apply_single_device_node(ov, target, child);
>               if (ret != 0) {
> -                     pr_err("%s: Failed to apply single node @%s/%s\n",
> -                                     __func__, target->full_name,
> -                                     child->name);
> +                     pr_err("Failed to apply single node @%s/%s\n",
> +                            target->full_name, child->name);
>                       of_node_put(child);
>                       return ret;
>               }
> @@ -176,8 +177,7 @@ static int of_overlay_apply(struct of_overlay *ov)
>  
>               err = of_overlay_apply_one(ov, ovinfo->target, ovinfo->overlay);
>               if (err != 0) {
> -                     pr_err("%s: overlay failed '%s'\n",
> -                             __func__, ovinfo->target->full_name);
> +                     pr_err("apply failed '%s'\n", 
> ovinfo->target->full_name);
>                       return err;
>               }
>       }
> @@ -208,7 +208,7 @@ static struct device_node *find_target_node(struct 
> device_node *info_node)
>       if (ret == 0)
>               return of_find_node_by_path(path);
>  
> -     pr_err("%s: Failed to find target for node %p (%s)\n", __func__,
> +     pr_err("Failed to find target for node %p (%s)\n",
>               info_node, info_node->name);
>  
>       return NULL;
> @@ -355,8 +355,6 @@ int of_overlay_create(struct device_node *tree)
>  
>       id = idr_alloc(&ov_idr, ov, 0, 0, GFP_KERNEL);
>       if (id < 0) {
> -             pr_err("%s: idr_alloc() failed for tree@%s\n",
> -                             __func__, tree->full_name);

Every other error in of_overlay_create() results in a pr_err().
(The other cases of removing pr_err() in this file are fine, because
the errors are already reported in the functions called from this
function.)

I would recommend leaving in the pr_err() for idr_alloc() failure.

>               err = id;
>               goto err_destroy_trans;
>       }
> @@ -365,26 +363,21 @@ int of_overlay_create(struct device_node *tree)
>       /* build the overlay info structures */
>       err = of_build_overlay_info(ov, tree);
>       if (err) {
> -             pr_err("%s: of_build_overlay_info() failed for tree@%s\n",
> -                             __func__, tree->full_name);
> +             pr_err("of_build_overlay_info() failed for tree@%s\n",
> +                    tree->full_name);
>               goto err_free_idr;
>       }
>  
>       /* apply the overlay */
>       err = of_overlay_apply(ov);
> -     if (err) {
> -             pr_err("%s: of_overlay_apply() failed for tree@%s\n",
> -                             __func__, tree->full_name);
> +     if (err)
>               goto err_abort_trans;
> -     }
>  
>       /* apply the changeset */
>       err = __of_changeset_apply(&ov->cset);
> -     if (err) {
> -             pr_err("%s: __of_changeset_apply() failed for tree@%s\n",
> -                             __func__, tree->full_name);
> +     if (err)
>               goto err_revert_overlay;
> -     }
> +
>  
>       /* add to the tail of the overlay list */
>       list_add_tail(&ov->node, &ov_list);
> @@ -469,8 +462,7 @@ static int overlay_removal_is_ok(struct of_overlay *ov)
>  
>       list_for_each_entry(ce, &ov->cset.entries, node) {
>               if (!overlay_is_topmost(ov, ce->np)) {
> -                     pr_err("%s: overlay #%d is not topmost\n",
> -                                     __func__, ov->id);
> +                     pr_err("overlay #%d is not topmost\n", ov->id);
>                       return 0;
>               }
>       }
> @@ -496,16 +488,13 @@ int of_overlay_destroy(int id)
>       ov = idr_find(&ov_idr, id);
>       if (ov == NULL) {
>               err = -ENODEV;
> -             pr_err("%s: Could not find overlay #%d\n",
> -                             __func__, id);
> +             pr_err("destroy: Could not find overlay #%d\n", id);
>               goto out;
>       }
>  
>       /* check whether the overlay is safe to remove */
>       if (!overlay_removal_is_ok(ov)) {
>               err = -EBUSY;
> -             pr_err("%s: removal check failed for overlay #%d\n",
> -                             __func__, id);
>               goto out;
>       }
>  

< snip >

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