diff mbox series

[v3,10/11] cxl/pmem: Remove match_nvdimm_bridge()

Message ID 20241205-const_dfc_done-v3-10-1611f1486b5a@quicinc.com (mailing list archive)
State Superseded
Headers show
Series driver core: Constify API device_find_child() | expand

Commit Message

Zijun Hu Dec. 5, 2024, 12:10 a.m. UTC 
From: Zijun Hu <quic_zijuhu@quicinc.com>

match_nvdimm_bridge(), as matching function of device_find_child(), is to
match a device with device type @cxl_nvdimm_bridge_type, and is unnecessary

Remove it and use API device_match_type() plus the device type instead.

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
---
 drivers/cxl/core/pmem.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

Comments

Alison Schofield Dec. 5, 2024, 10:49 p.m. UTC | #1 
On Thu, Dec 05, 2024 at 08:10:19AM +0800, Zijun Hu wrote:
> From: Zijun Hu <quic_zijuhu@quicinc.com>

Suggest conveying more detail in the commit msg:

cxl/pmem> Replace match_nvdimm_bridge() w device_match_type()

> 
> match_nvdimm_bridge(), as matching function of device_find_child(), is to
> match a device with device type @cxl_nvdimm_bridge_type, and is unnecessary

Prefer being clear that this function recently become needless.
Something like:

match_nvdimm_bridge(), as matching function of device_find_child(),
matches a device with device type @cxl_nvdimm_bridge_type. The recently
added API, device_match_type, simplifies that task.
 
Replace match_nvdimm_bridge() usage with device_match_type().

With that you can add:

Reviewed-by: Alison Schofield <alison.schofield@intel.com>

> 
> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
> ---
>  drivers/cxl/core/pmem.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/cxl/core/pmem.c b/drivers/cxl/core/pmem.c
> index a8473de24ebfd92f12f47e0556e28b81a29cff7c..0f8166e793e14fc0b1c04ffda79e756a743d9e6b 100644
> --- a/drivers/cxl/core/pmem.c
> +++ b/drivers/cxl/core/pmem.c
> @@ -57,11 +57,6 @@ bool is_cxl_nvdimm_bridge(struct device *dev)
>  }
>  EXPORT_SYMBOL_NS_GPL(is_cxl_nvdimm_bridge, "CXL");
>  
> -static int match_nvdimm_bridge(struct device *dev, const void *data)
> -{
> -	return is_cxl_nvdimm_bridge(dev);
> -}
> -
>  /**
>   * cxl_find_nvdimm_bridge() - find a bridge device relative to a port
>   * @port: any descendant port of an nvdimm-bridge associated
> @@ -75,7 +70,9 @@ struct cxl_nvdimm_bridge *cxl_find_nvdimm_bridge(struct cxl_port *port)
>  	if (!cxl_root)
>  		return NULL;
>  
> -	dev = device_find_child(&cxl_root->port.dev, NULL, match_nvdimm_bridge);
> +	dev = device_find_child(&cxl_root->port.dev,
> +				&cxl_nvdimm_bridge_type,
> +				device_match_type);
>  
>  	if (!dev)
>  		return NULL;
> 
> -- 
> 2.34.1
> 
>
Zijun Hu Dec. 6, 2024, 1:02 a.m. UTC | #2 
On 2024/12/6 06:49, Alison Schofield wrote:
> On Thu, Dec 05, 2024 at 08:10:19AM +0800, Zijun Hu wrote:
>> From: Zijun Hu <quic_zijuhu@quicinc.com>
> 
> Suggest conveying more detail in the commit msg:
> 
> cxl/pmem> Replace match_nvdimm_bridge() w device_match_type()
> 

good suggestions
will take it in v4.

>>
>> match_nvdimm_bridge(), as matching function of device_find_child(), is to
>> match a device with device type @cxl_nvdimm_bridge_type, and is unnecessary
> 
> Prefer being clear that this function recently become needless.
> Something like:
> 
> match_nvdimm_bridge(), as matching function of device_find_child(),
> matches a device with device type @cxl_nvdimm_bridge_type. The recently
> added API, device_match_type, simplifies that task.
>  
> Replace match_nvdimm_bridge() usage with device_match_type().
> 

sure. will do it in v4 by following these good comments.

> With that you can add:
> 
> Reviewed-by: Alison Schofield <alison.schofield@intel.com>
> 
>>
>> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
>> ---
>>  drivers/cxl/core/pmem.c | 9 +++------
>>  1 file changed, 3 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/cxl/core/pmem.c b/drivers/cxl/core/pmem.c
>> index a8473de24ebfd92f12f47e0556e28b81a29cff7c..0f8166e793e14fc0b1c04ffda79e756a743d9e6b 100644
>> --- a/drivers/cxl/core/pmem.c
>> +++ b/drivers/cxl/core/pmem.c
>> @@ -57,11 +57,6 @@ bool is_cxl_nvdimm_bridge(struct device *dev)
>>  }
>>  EXPORT_SYMBOL_NS_GPL(is_cxl_nvdimm_bridge, "CXL");
>>  
>> -static int match_nvdimm_bridge(struct device *dev, const void *data)
>> -{
>> -	return is_cxl_nvdimm_bridge(dev);
>> -}
>> -
>>  /**
>>   * cxl_find_nvdimm_bridge() - find a bridge device relative to a port
>>   * @port: any descendant port of an nvdimm-bridge associated
>> @@ -75,7 +70,9 @@ struct cxl_nvdimm_bridge *cxl_find_nvdimm_bridge(struct cxl_port *port)
>>  	if (!cxl_root)
>>  		return NULL;
>>  
>> -	dev = device_find_child(&cxl_root->port.dev, NULL, match_nvdimm_bridge);
>> +	dev = device_find_child(&cxl_root->port.dev,
>> +				&cxl_nvdimm_bridge_type,
>> +				device_match_type);
>>  
>>  	if (!dev)
>>  		return NULL;
>>
>> -- 
>> 2.34.1
>>
>>
diff mbox series

Patch

diff --git a/drivers/cxl/core/pmem.c b/drivers/cxl/core/pmem.c
index a8473de24ebfd92f12f47e0556e28b81a29cff7c..0f8166e793e14fc0b1c04ffda79e756a743d9e6b 100644
--- a/drivers/cxl/core/pmem.c
+++ b/drivers/cxl/core/pmem.c
@@ -57,11 +57,6 @@  bool is_cxl_nvdimm_bridge(struct device *dev)
 }
 EXPORT_SYMBOL_NS_GPL(is_cxl_nvdimm_bridge, "CXL");
 
-static int match_nvdimm_bridge(struct device *dev, const void *data)
-{
-	return is_cxl_nvdimm_bridge(dev);
-}
-
 /**
  * cxl_find_nvdimm_bridge() - find a bridge device relative to a port
  * @port: any descendant port of an nvdimm-bridge associated
@@ -75,7 +70,9 @@  struct cxl_nvdimm_bridge *cxl_find_nvdimm_bridge(struct cxl_port *port)
 	if (!cxl_root)
 		return NULL;
 
-	dev = device_find_child(&cxl_root->port.dev, NULL, match_nvdimm_bridge);
+	dev = device_find_child(&cxl_root->port.dev,
+				&cxl_nvdimm_bridge_type,
+				device_match_type);
 
 	if (!dev)
 		return NULL;