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[PATCH v6 3/8] scsi: pm8001: use sas_find_attached_phy_id() instead of open coded

Jason Yan posted 8 patches 3 years, 6 months ago
[PATCH v6 3/8] scsi: pm8001: use sas_find_attached_phy_id() instead of open coded
Posted by Jason Yan 3 years, 6 months ago 
The attached phy id finding is open coded. Now we can replace it with
sas_find_attached_phy_id(). To keep consistent, the return value of
pm8001_dev_found_notify() is also changed to -ENODEV after calling
sas_find_attathed_phy_id() failed.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/scsi/pm8001/pm8001_sas.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 8e3f2f9ddaac..b4007c4f157d 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -645,22 +645,16 @@ static int pm8001_dev_found_notify(struct domain_device *dev)
 	pm8001_device->dcompletion = &completion;
 	if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
 		int phy_id;
-		struct ex_phy *phy;
-		for (phy_id = 0; phy_id < parent_dev->ex_dev.num_phys;
-		phy_id++) {
-			phy = &parent_dev->ex_dev.ex_phy[phy_id];
-			if (SAS_ADDR(phy->attached_sas_addr)
-				== SAS_ADDR(dev->sas_addr)) {
-				pm8001_device->attached_phy = phy_id;
-				break;
-			}
-		}
-		if (phy_id == parent_dev->ex_dev.num_phys) {
+
+		phy_id = sas_find_attached_phy_id(&parent_dev->ex_dev, dev);
+		if (phy_id < 0) {
 			pm8001_dbg(pm8001_ha, FAIL,
 				   "Error: no attached dev:%016llx at ex:%016llx.\n",
 				   SAS_ADDR(dev->sas_addr),
 				   SAS_ADDR(parent_dev->sas_addr));
-			res = -1;
+			res = phy_id;
+		} else {
+			pm8001_device->attached_phy = phy_id;
 		}
 	} else {
 		if (dev->dev_type == SAS_SATA_DEV) {
-- 
2.31.1
Re: [PATCH v6 3/8] scsi: pm8001: use sas_find_attached_phy_id() instead of open coded
Posted by Johannes Thumshirn 3 years, 6 months ago 
Looks good,
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Re: [PATCH v6 3/8] scsi: pm8001: use sas_find_attached_phy_id() instead of open coded
Posted by Damien Le Moal 3 years, 6 months ago 
On 9/28/22 16:01, Jason Yan wrote:
> The attached phy id finding is open coded. Now we can replace it with
> sas_find_attached_phy_id(). To keep consistent, the return value of
> pm8001_dev_found_notify() is also changed to -ENODEV after calling
> sas_find_attathed_phy_id() failed.
> 
> Signed-off-by: Jason Yan <yanaijie@huawei.com>
> Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

Looks good.

Note for future patches: if you change a patch, it needs to be reviewed
again. So please drop any review tag from the patch commit message to make
that clear.

> ---
>  drivers/scsi/pm8001/pm8001_sas.c | 18 ++++++------------
>  1 file changed, 6 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
> index 8e3f2f9ddaac..b4007c4f157d 100644
> --- a/drivers/scsi/pm8001/pm8001_sas.c
> +++ b/drivers/scsi/pm8001/pm8001_sas.c
> @@ -645,22 +645,16 @@ static int pm8001_dev_found_notify(struct domain_device *dev)
>  	pm8001_device->dcompletion = &completion;
>  	if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
>  		int phy_id;
> -		struct ex_phy *phy;
> -		for (phy_id = 0; phy_id < parent_dev->ex_dev.num_phys;
> -		phy_id++) {
> -			phy = &parent_dev->ex_dev.ex_phy[phy_id];
> -			if (SAS_ADDR(phy->attached_sas_addr)
> -				== SAS_ADDR(dev->sas_addr)) {
> -				pm8001_device->attached_phy = phy_id;
> -				break;
> -			}
> -		}
> -		if (phy_id == parent_dev->ex_dev.num_phys) {
> +
> +		phy_id = sas_find_attached_phy_id(&parent_dev->ex_dev, dev);
> +		if (phy_id < 0) {
>  			pm8001_dbg(pm8001_ha, FAIL,
>  				   "Error: no attached dev:%016llx at ex:%016llx.\n",
>  				   SAS_ADDR(dev->sas_addr),
>  				   SAS_ADDR(parent_dev->sas_addr));
> -			res = -1;
> +			res = phy_id;
> +		} else {
> +			pm8001_device->attached_phy = phy_id;
>  		}
>  	} else {
>  		if (dev->dev_type == SAS_SATA_DEV) {

-- 
Damien Le Moal
Western Digital Research
Re: [PATCH v6 3/8] scsi: pm8001: use sas_find_attached_phy_id() instead of open coded
Posted by Jason Yan 3 years, 6 months ago 
On 2022/9/28 15:02, Damien Le Moal wrote:
> On 9/28/22 16:01, Jason Yan wrote:
>> The attached phy id finding is open coded. Now we can replace it with
>> sas_find_attached_phy_id(). To keep consistent, the return value of
>> pm8001_dev_found_notify() is also changed to -ENODEV after calling
>> sas_find_attathed_phy_id() failed.
>>
>> Signed-off-by: Jason Yan <yanaijie@huawei.com>
>> Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
>> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
> 
> Looks good.
> 
> Note for future patches: if you change a patch, it needs to be reviewed
> again. So please drop any review tag from the patch commit message to make
> that clear.

OK. Thanks again.

Jason

> 
>> ---
>>   drivers/scsi/pm8001/pm8001_sas.c | 18 ++++++------------
>>   1 file changed, 6 insertions(+), 12 deletions(-)
>>
>> diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
>> index 8e3f2f9ddaac..b4007c4f157d 100644
>> --- a/drivers/scsi/pm8001/pm8001_sas.c
>> +++ b/drivers/scsi/pm8001/pm8001_sas.c
>> @@ -645,22 +645,16 @@ static int pm8001_dev_found_notify(struct domain_device *dev)
>>   	pm8001_device->dcompletion = &completion;
>>   	if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
>>   		int phy_id;
>> -		struct ex_phy *phy;
>> -		for (phy_id = 0; phy_id < parent_dev->ex_dev.num_phys;
>> -		phy_id++) {
>> -			phy = &parent_dev->ex_dev.ex_phy[phy_id];
>> -			if (SAS_ADDR(phy->attached_sas_addr)
>> -				== SAS_ADDR(dev->sas_addr)) {
>> -				pm8001_device->attached_phy = phy_id;
>> -				break;
>> -			}
>> -		}
>> -		if (phy_id == parent_dev->ex_dev.num_phys) {
>> +
>> +		phy_id = sas_find_attached_phy_id(&parent_dev->ex_dev, dev);
>> +		if (phy_id < 0) {
>>   			pm8001_dbg(pm8001_ha, FAIL,
>>   				   "Error: no attached dev:%016llx at ex:%016llx.\n",
>>   				   SAS_ADDR(dev->sas_addr),
>>   				   SAS_ADDR(parent_dev->sas_addr));
>> -			res = -1;
>> +			res = phy_id;
>> +		} else {
>> +			pm8001_device->attached_phy = phy_id;
>>   		}
>>   	} else {
>>   		if (dev->dev_type == SAS_SATA_DEV) {
>

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