diff mbox series

[v5,linux-next] usb:typec:mux: remove indentation for common path

Message ID 20240426164705.2717-1-prosunofficial@gmail.com
State New
Headers show
Series [v5,linux-next] usb:typec:mux: remove indentation for common path | expand

Commit Message

R Sundar April 26, 2024, 4:47 p.m. UTC
Nitpick, Mostly common path will not be indented.  so rewritten this
function to check device_node pointer is null and removed common path
indentation.

Signed-off-by: R Sundar <prosunofficial@gmail.com>
---

Fixed nitpicks in code according to comments received on other patch as
below:

[ Nit, this function should be rewritten to not work like this, the
"common" path should not be indented, but only the exception (i.e. bail
if ep is not allocated properly.) ]
https://lore.kernel.org/all/2024041103-doornail-professor-7c1e@gregkh/

Goal is to get rid of of_node_put,but sending this patch first to do one
thing at a time.

Changes since v1 - fixed the typo error for spell from identation to
indentation

Changes since v2 - Shifted the indentation to one level left for the
switch cases as per coding style.

Changes since v3 - Added descriptive subject for the patch and checked
from and sign-off having same name.

Changes since v4 - Fixed name in signed-off-by as in documents.

Patches link:
------------
v1  - https://lore.kernel.org/all/20240420145522.15018-1-prosunofficial@gmail.com/
v2  - https://lore.kernel.org/linux-usb/20240420164927.15290-1-prosunofficial@gmail.com/
v3  - https://lore.kernel.org/all/20240421011647.3027-1-prosunofficial@gmail.com/
v4  - https://lore.kernel.org/all/20240424150718.5006-1-prosunofficial@gmail.com/

 drivers/usb/typec/mux/nb7vpq904m.c | 68 +++++++++++++++---------------
 1 file changed, 34 insertions(+), 34 deletions(-)

Comments

R Sundar May 2, 2024, 4:23 p.m. UTC | #1
On 26/04/24 22:17, R Sundar wrote:
> Nitpick, Mostly common path will not be indented.  so rewritten this
> function to check device_node pointer is null and removed common path
> indentation.
> 
> Signed-off-by: R Sundar <prosunofficial@gmail.com>
> ---
> 
> Fixed nitpicks in code according to comments received on other patch as
> below:
> 
> [ Nit, this function should be rewritten to not work like this, the
> "common" path should not be indented, but only the exception (i.e. bail
> if ep is not allocated properly.) ]
> https://lore.kernel.org/all/2024041103-doornail-professor-7c1e@gregkh/
> 
> Goal is to get rid of of_node_put,but sending this patch first to do one
> thing at a time.
> 
> Changes since v1 - fixed the typo error for spell from identation to
> indentation
> 
> Changes since v2 - Shifted the indentation to one level left for the
> switch cases as per coding style.
> 
> Changes since v3 - Added descriptive subject for the patch and checked
> from and sign-off having same name.
> 
> Changes since v4 - Fixed name in signed-off-by as in documents.
> 
> Patches link:
> ------------
> v1  - https://lore.kernel.org/all/20240420145522.15018-1-prosunofficial@gmail.com/
> v2  - https://lore.kernel.org/linux-usb/20240420164927.15290-1-prosunofficial@gmail.com/
> v3  - https://lore.kernel.org/all/20240421011647.3027-1-prosunofficial@gmail.com/
> v4  - https://lore.kernel.org/all/20240424150718.5006-1-prosunofficial@gmail.com/
> 
>   drivers/usb/typec/mux/nb7vpq904m.c | 68 +++++++++++++++---------------
>   1 file changed, 34 insertions(+), 34 deletions(-)
> 
> diff --git a/drivers/usb/typec/mux/nb7vpq904m.c b/drivers/usb/typec/mux/nb7vpq904m.c
> index b17826713753..f7a00b388876 100644
> --- a/drivers/usb/typec/mux/nb7vpq904m.c
> +++ b/drivers/usb/typec/mux/nb7vpq904m.c
> @@ -320,47 +320,47 @@ static int nb7vpq904m_parse_data_lanes_mapping(struct nb7vpq904m *nb7)
>   	int ret, i, j;
>   
>   	ep = of_graph_get_endpoint_by_regs(nb7->client->dev.of_node, 1, 0);
> +	if (!ep)
> +		return 0;
>   
> -	if (ep) {
> -		ret = of_property_count_u32_elems(ep, "data-lanes");
> -		if (ret == -EINVAL)
> -			/* Property isn't here, consider default mapping */
> -			goto out_done;
> -		if (ret < 0)
> -			goto out_error;
> -
> -		if (ret != DATA_LANES_COUNT) {
> -			dev_err(&nb7->client->dev, "expected 4 data lanes\n");
> -			ret = -EINVAL;
> -			goto out_error;
> -		}
> -
> -		ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT);
> -		if (ret)
> -			goto out_error;
> +	ret = of_property_count_u32_elems(ep, "data-lanes");
> +	if (ret == -EINVAL)
> +		/* Property isn't here, consider default mapping */
> +		goto out_done;
> +	if (ret < 0)
> +		goto out_error;
> +
> +	if (ret != DATA_LANES_COUNT) {
> +		dev_err(&nb7->client->dev, "expected 4 data lanes\n");
> +		ret = -EINVAL;
> +		goto out_error;
> +	}
>   
> -		for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) {
> -			for (j = 0; j < DATA_LANES_COUNT; j++) {
> -				if (data_lanes[j] != supported_data_lane_mapping[i][j])
> -					break;
> -			}
> +	ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT);
> +	if (ret)
> +		goto out_error;
>   
> -			if (j == DATA_LANES_COUNT)
> +	for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) {
> +		for (j = 0; j < DATA_LANES_COUNT; j++) {
> +			if (data_lanes[j] != supported_data_lane_mapping[i][j])
>   				break;
>   		}
>   
> -		switch (i) {
> -		case NORMAL_LANE_MAPPING:
> -			break;
> -		case INVERT_LANE_MAPPING:
> -			nb7->swap_data_lanes = true;
> -			dev_info(&nb7->client->dev, "using inverted data lanes mapping\n");
> +		if (j == DATA_LANES_COUNT)
>   			break;
> -		default:
> -			dev_err(&nb7->client->dev, "invalid data lanes mapping\n");
> -			ret = -EINVAL;
> -			goto out_error;
> -		}
> +	}
> +
> +	switch (i) {
> +	case NORMAL_LANE_MAPPING:
> +		break;
> +	case INVERT_LANE_MAPPING:
> +		nb7->swap_data_lanes = true;
> +		dev_info(&nb7->client->dev, "using inverted data lanes mapping\n");
> +		break;
> +	default:
> +		dev_err(&nb7->client->dev, "invalid data lanes mapping\n");
> +		ret = -EINVAL;
> +		goto out_error;
>   	}
>   
>   out_done:

Hi,

Any feedback for this patch?

Regards,
Sundar
Heikki Krogerus May 6, 2024, 8:59 a.m. UTC | #2
Hi Sundar,

On Fri, Apr 26, 2024 at 10:17:05PM +0530, R Sundar wrote:
> Nitpick, Mostly common path will not be indented.  so rewritten this
> function to check device_node pointer is null and removed common path
> indentation.
> 
> Signed-off-by: R Sundar <prosunofficial@gmail.com>

For the record, I'm still uncomfortable with the name - why not just
spell out your whole name?

> ---
> 
> Fixed nitpicks in code according to comments received on other patch as
> below:
> 
> [ Nit, this function should be rewritten to not work like this, the
> "common" path should not be indented, but only the exception (i.e. bail
> if ep is not allocated properly.) ]
> https://lore.kernel.org/all/2024041103-doornail-professor-7c1e@gregkh/
> 
> Goal is to get rid of of_node_put,but sending this patch first to do one
> thing at a time.
> 
> Changes since v1 - fixed the typo error for spell from identation to
> indentation
> 
> Changes since v2 - Shifted the indentation to one level left for the
> switch cases as per coding style.
> 
> Changes since v3 - Added descriptive subject for the patch and checked
> from and sign-off having same name.
> 
> Changes since v4 - Fixed name in signed-off-by as in documents.
> 
> Patches link:
> ------------
> v1  - https://lore.kernel.org/all/20240420145522.15018-1-prosunofficial@gmail.com/
> v2  - https://lore.kernel.org/linux-usb/20240420164927.15290-1-prosunofficial@gmail.com/
> v3  - https://lore.kernel.org/all/20240421011647.3027-1-prosunofficial@gmail.com/
> v4  - https://lore.kernel.org/all/20240424150718.5006-1-prosunofficial@gmail.com/
> 
>  drivers/usb/typec/mux/nb7vpq904m.c | 68 +++++++++++++++---------------
>  1 file changed, 34 insertions(+), 34 deletions(-)

Sorry for missing this earlier, but it looks like this patch only
modifies the nb7vpq904m driver, so I think you should specify that
already in the subject.
While at it, you could also specify the only function that is being
modified in the commit message (this is just a suggestion):

        usb: typec: nb7vpq904m: Remove uneeded indentation

        In function nb7vpq904m_parse_data_lanes_mapping(), the "if
        (ep)" condition is basically the entire function. Making the
        code a bit more readable by inverting the condition so that
        the function returns immedately if there is no "ep".

thanks,
diff mbox series

Patch

diff --git a/drivers/usb/typec/mux/nb7vpq904m.c b/drivers/usb/typec/mux/nb7vpq904m.c
index b17826713753..f7a00b388876 100644
--- a/drivers/usb/typec/mux/nb7vpq904m.c
+++ b/drivers/usb/typec/mux/nb7vpq904m.c
@@ -320,47 +320,47 @@  static int nb7vpq904m_parse_data_lanes_mapping(struct nb7vpq904m *nb7)
 	int ret, i, j;
 
 	ep = of_graph_get_endpoint_by_regs(nb7->client->dev.of_node, 1, 0);
+	if (!ep)
+		return 0;
 
-	if (ep) {
-		ret = of_property_count_u32_elems(ep, "data-lanes");
-		if (ret == -EINVAL)
-			/* Property isn't here, consider default mapping */
-			goto out_done;
-		if (ret < 0)
-			goto out_error;
-
-		if (ret != DATA_LANES_COUNT) {
-			dev_err(&nb7->client->dev, "expected 4 data lanes\n");
-			ret = -EINVAL;
-			goto out_error;
-		}
-
-		ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT);
-		if (ret)
-			goto out_error;
+	ret = of_property_count_u32_elems(ep, "data-lanes");
+	if (ret == -EINVAL)
+		/* Property isn't here, consider default mapping */
+		goto out_done;
+	if (ret < 0)
+		goto out_error;
+
+	if (ret != DATA_LANES_COUNT) {
+		dev_err(&nb7->client->dev, "expected 4 data lanes\n");
+		ret = -EINVAL;
+		goto out_error;
+	}
 
-		for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) {
-			for (j = 0; j < DATA_LANES_COUNT; j++) {
-				if (data_lanes[j] != supported_data_lane_mapping[i][j])
-					break;
-			}
+	ret = of_property_read_u32_array(ep, "data-lanes", data_lanes, DATA_LANES_COUNT);
+	if (ret)
+		goto out_error;
 
-			if (j == DATA_LANES_COUNT)
+	for (i = 0; i < ARRAY_SIZE(supported_data_lane_mapping); i++) {
+		for (j = 0; j < DATA_LANES_COUNT; j++) {
+			if (data_lanes[j] != supported_data_lane_mapping[i][j])
 				break;
 		}
 
-		switch (i) {
-		case NORMAL_LANE_MAPPING:
-			break;
-		case INVERT_LANE_MAPPING:
-			nb7->swap_data_lanes = true;
-			dev_info(&nb7->client->dev, "using inverted data lanes mapping\n");
+		if (j == DATA_LANES_COUNT)
 			break;
-		default:
-			dev_err(&nb7->client->dev, "invalid data lanes mapping\n");
-			ret = -EINVAL;
-			goto out_error;
-		}
+	}
+
+	switch (i) {
+	case NORMAL_LANE_MAPPING:
+		break;
+	case INVERT_LANE_MAPPING:
+		nb7->swap_data_lanes = true;
+		dev_info(&nb7->client->dev, "using inverted data lanes mapping\n");
+		break;
+	default:
+		dev_err(&nb7->client->dev, "invalid data lanes mapping\n");
+		ret = -EINVAL;
+		goto out_error;
 	}
 
 out_done: