[PATCH] ignore disabled memory-region nodes

[PATCH] ignore disabled memory-region nodes

[Puneet Saxena]

While parsing "memory-region" node lists if a node is
"disabled", parsing halts. Therefore the nodes whose
"status" is "okay" or "ok" are not parsed.

The change ignores disabled nodes in the memory-region
nodes list and returns 0 to continue parsing next nodes.

---
v2:
* Fixed typo in commit message.
* Used of_device_is_available to check device is disabled/enabled.

Krishna Reddy (1):
  of: reserved-memory: ignore disabled memory-region nodes

 drivers/of/of_reserved_mem.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.7.4

[PATCH V2] of: reserved-memory: ignore disabled memory-region nodes

[Puneet Saxena]

From: Krishna Reddy <vdumpa@nvidia.com>

Ignore disabled nodes in the memory-region 
nodes list and continue to initialize the rest 
of enabled nodes.

Check if the "reserved-memory" node is available
and if it's not available, return 0 to ignore the 
"reserved-memory" node and continue parsing with 
next node in memory-region nodes list.

Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
---
v2:
* Fixed typo in commit message.
* Used "of_device_is_available" to check "reserved-memory"
  nodes are disabled/enabled.

 drivers/of/of_reserved_mem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 1977ee0adcb1..b0b7a0c4431d 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -322,6 +322,9 @@ int of_reserved_mem_device_init_by_idx(struct device *dev,
 	if (!target)
 		return -ENODEV;
 
+	if (!of_device_is_available(target))
+		return 0;
+
 	rmem = __find_rmem(target);
 	of_node_put(target);
 
-- 
2.7.4

Re: [PATCH V2] of: reserved-memory: ignore disabled memory-region nodes

[Rob Herring]

On Wed, 22 May 2019 16:17:11 +0530, Puneet Saxena wrote:
> From: Krishna Reddy <vdumpa@nvidia.com>
> 
> Ignore disabled nodes in the memory-region 
> nodes list and continue to initialize the rest 
> of enabled nodes.
> 
> Check if the "reserved-memory" node is available
> and if it's not available, return 0 to ignore the 
> "reserved-memory" node and continue parsing with 
> next node in memory-region nodes list.
> 
> Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
> Signed-off-by: Puneet Saxena <puneets@nvidia.com>
> ---
> v2:
> * Fixed typo in commit message.
> * Used "of_device_is_available" to check "reserved-memory"
>   nodes are disabled/enabled.
> 
>  drivers/of/of_reserved_mem.c | 3 +++
>  1 file changed, 3 insertions(+)
> 

Applied, thanks.

Rob