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* [PATCH] phy: brcm-sata: fix a timeout test in init
@ 2017-06-19 10:56 ` Dan Carpenter
  0 siblings, 0 replies; 8+ messages in thread
From: Dan Carpenter @ 2017-06-19 10:56 UTC (permalink / raw)
  To: Kishon Vijay Abraham I
  Cc: Vivek Gautam, Yendapally Reddy Dhananjaya Reddy, Heiko Stuebner,
	Florian Fainelli, Axel Lin, linux-kernel, kernel-janitors

We want to timeout with try set to zero so this should be a pre-op
instead of post-op.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
index ccbc3d994998..48fb016ce689 100644
--- a/drivers/phy/broadcom/phy-brcm-sata.c
+++ b/drivers/phy/broadcom/phy-brcm-sata.c
@@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
 
 	/* Wait for pll_seq_done bit */
 	try = 50;
-	while (try--) {
+	while (--try) {
 		val = brcm_sata_phy_rd(base, BLOCK0_REG_BANK,
 					BLOCK0_XGXSSTATUS);
 		if (val & BLOCK0_XGXSSTATUS_PLL_LOCK)

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH] phy: brcm-sata: fix a timeout test in init
@ 2017-06-19 10:56 ` Dan Carpenter
  0 siblings, 0 replies; 8+ messages in thread
From: Dan Carpenter @ 2017-06-19 10:56 UTC (permalink / raw)
  To: Kishon Vijay Abraham I
  Cc: Vivek Gautam, Yendapally Reddy Dhananjaya Reddy, Heiko Stuebner,
	Florian Fainelli, Axel Lin, linux-kernel, kernel-janitors

We want to timeout with try set to zero so this should be a pre-op
instead of post-op.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
index ccbc3d994998..48fb016ce689 100644
--- a/drivers/phy/broadcom/phy-brcm-sata.c
+++ b/drivers/phy/broadcom/phy-brcm-sata.c
@@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
 
 	/* Wait for pll_seq_done bit */
 	try = 50;
-	while (try--) {
+	while (--try) {
 		val = brcm_sata_phy_rd(base, BLOCK0_REG_BANK,
 					BLOCK0_XGXSSTATUS);
 		if (val & BLOCK0_XGXSSTATUS_PLL_LOCK)

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH] phy: brcm-sata: fix a timeout test in init
  2017-06-19 10:56 ` Dan Carpenter
@ 2017-06-20  8:38   ` Vivek Gautam
  -1 siblings, 0 replies; 8+ messages in thread
From: Vivek Gautam @ 2017-06-20  8:26 UTC (permalink / raw)
  To: Dan Carpenter, Kishon Vijay Abraham I
  Cc: Yendapally Reddy Dhananjaya Reddy, Heiko Stuebner,
	Florian Fainelli, Axel Lin, linux-kernel, kernel-janitors



On 06/19/2017 04:26 PM, Dan Carpenter wrote:
> We want to timeout with try set to zero so this should be a pre-op
> instead of post-op.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
> index ccbc3d994998..48fb016ce689 100644
> --- a/drivers/phy/broadcom/phy-brcm-sata.c
> +++ b/drivers/phy/broadcom/phy-brcm-sata.c
> @@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
>   
>   	/* Wait for pll_seq_done bit */
>   	try = 50;
> -	while (try--) {
> +	while (--try) {

Do we want to try reading the status 50 times? If yes, won't your change
break that? It will rather run the loop 49 times.

Thanks
Vivek

>   		val = brcm_sata_phy_rd(base, BLOCK0_REG_BANK,
>   					BLOCK0_XGXSSTATUS);
>   		if (val & BLOCK0_XGXSSTATUS_PLL_LOCK)

-- 
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] phy: brcm-sata: fix a timeout test in init
@ 2017-06-20  8:38   ` Vivek Gautam
  0 siblings, 0 replies; 8+ messages in thread
From: Vivek Gautam @ 2017-06-20  8:38 UTC (permalink / raw)
  To: Dan Carpenter, Kishon Vijay Abraham I
  Cc: Yendapally Reddy Dhananjaya Reddy, Heiko Stuebner,
	Florian Fainelli, Axel Lin, linux-kernel, kernel-janitors



On 06/19/2017 04:26 PM, Dan Carpenter wrote:
> We want to timeout with try set to zero so this should be a pre-op
> instead of post-op.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
> index ccbc3d994998..48fb016ce689 100644
> --- a/drivers/phy/broadcom/phy-brcm-sata.c
> +++ b/drivers/phy/broadcom/phy-brcm-sata.c
> @@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
>   
>   	/* Wait for pll_seq_done bit */
>   	try = 50;
> -	while (try--) {
> +	while (--try) {

Do we want to try reading the status 50 times? If yes, won't your change
break that? It will rather run the loop 49 times.

Thanks
Vivek

>   		val = brcm_sata_phy_rd(base, BLOCK0_REG_BANK,
>   					BLOCK0_XGXSSTATUS);
>   		if (val & BLOCK0_XGXSSTATUS_PLL_LOCK)

-- 
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] phy: brcm-sata: fix a timeout test in init
  2017-06-20  8:38   ` Vivek Gautam
@ 2017-06-20  8:42     ` Dan Carpenter
  -1 siblings, 0 replies; 8+ messages in thread
From: Dan Carpenter @ 2017-06-20  8:42 UTC (permalink / raw)
  To: Vivek Gautam
  Cc: Kishon Vijay Abraham I, Yendapally Reddy Dhananjaya Reddy,
	Heiko Stuebner, Florian Fainelli, Axel Lin, linux-kernel,
	kernel-janitors

On Tue, Jun 20, 2017 at 01:56:35PM +0530, Vivek Gautam wrote:
> 
> 
> On 06/19/2017 04:26 PM, Dan Carpenter wrote:
> > We want to timeout with try set to zero so this should be a pre-op
> > instead of post-op.
> > 
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > 
> > diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
> > index ccbc3d994998..48fb016ce689 100644
> > --- a/drivers/phy/broadcom/phy-brcm-sata.c
> > +++ b/drivers/phy/broadcom/phy-brcm-sata.c
> > @@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
> >   	/* Wait for pll_seq_done bit */
> >   	try = 50;
> > -	while (try--) {
> > +	while (--try) {
> 
> Do we want to try reading the status 50 times? If yes, won't your change
> break that? It will rather run the loop 49 times.
> 

Yeah.  I know.  I'm pretty sure that 50 is a rough number, and not an
exact thing.

regards,
dan carpenter

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] phy: brcm-sata: fix a timeout test in init
@ 2017-06-20  8:42     ` Dan Carpenter
  0 siblings, 0 replies; 8+ messages in thread
From: Dan Carpenter @ 2017-06-20  8:42 UTC (permalink / raw)
  To: Vivek Gautam
  Cc: Kishon Vijay Abraham I, Yendapally Reddy Dhananjaya Reddy,
	Heiko Stuebner, Florian Fainelli, Axel Lin, linux-kernel,
	kernel-janitors

On Tue, Jun 20, 2017 at 01:56:35PM +0530, Vivek Gautam wrote:
> 
> 
> On 06/19/2017 04:26 PM, Dan Carpenter wrote:
> > We want to timeout with try set to zero so this should be a pre-op
> > instead of post-op.
> > 
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > 
> > diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
> > index ccbc3d994998..48fb016ce689 100644
> > --- a/drivers/phy/broadcom/phy-brcm-sata.c
> > +++ b/drivers/phy/broadcom/phy-brcm-sata.c
> > @@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
> >   	/* Wait for pll_seq_done bit */
> >   	try = 50;
> > -	while (try--) {
> > +	while (--try) {
> 
> Do we want to try reading the status 50 times? If yes, won't your change
> break that? It will rather run the loop 49 times.
> 

Yeah.  I know.  I'm pretty sure that 50 is a rough number, and not an
exact thing.

regards,
dan carpenter


^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] phy: brcm-sata: fix a timeout test in init
  2017-06-20  8:42     ` Dan Carpenter
@ 2017-06-20  8:57       ` Vivek Gautam
  -1 siblings, 0 replies; 8+ messages in thread
From: Vivek Gautam @ 2017-06-20  8:56 UTC (permalink / raw)
  To: Dan Carpenter
  Cc: Kishon Vijay Abraham I, Yendapally Reddy Dhananjaya Reddy,
	Heiko Stuebner, Florian Fainelli, Axel Lin, linux-kernel,
	kernel-janitors



On 06/20/2017 02:12 PM, Dan Carpenter wrote:
> On Tue, Jun 20, 2017 at 01:56:35PM +0530, Vivek Gautam wrote:
>>
>> On 06/19/2017 04:26 PM, Dan Carpenter wrote:
>>> We want to timeout with try set to zero so this should be a pre-op
>>> instead of post-op.
>>>
>>> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>>>
>>> diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
>>> index ccbc3d994998..48fb016ce689 100644
>>> --- a/drivers/phy/broadcom/phy-brcm-sata.c
>>> +++ b/drivers/phy/broadcom/phy-brcm-sata.c
>>> @@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
>>>    	/* Wait for pll_seq_done bit */
>>>    	try = 50;
>>> -	while (try--) {
>>> +	while (--try) {
>> Do we want to try reading the status 50 times? If yes, won't your change
>> break that? It will rather run the loop 49 times.
>>
> Yeah.  I know.  I'm pretty sure that 50 is a rough number, and not an
> exact thing.

Right, I agree that this must be rough count.
nice catch btw.

Best regards
Vivek

>
> regards,
> dan carpenter
>

-- 
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] phy: brcm-sata: fix a timeout test in init
@ 2017-06-20  8:57       ` Vivek Gautam
  0 siblings, 0 replies; 8+ messages in thread
From: Vivek Gautam @ 2017-06-20  8:57 UTC (permalink / raw)
  To: Dan Carpenter
  Cc: Kishon Vijay Abraham I, Yendapally Reddy Dhananjaya Reddy,
	Heiko Stuebner, Florian Fainelli, Axel Lin, linux-kernel,
	kernel-janitors



On 06/20/2017 02:12 PM, Dan Carpenter wrote:
> On Tue, Jun 20, 2017 at 01:56:35PM +0530, Vivek Gautam wrote:
>>
>> On 06/19/2017 04:26 PM, Dan Carpenter wrote:
>>> We want to timeout with try set to zero so this should be a pre-op
>>> instead of post-op.
>>>
>>> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>>>
>>> diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
>>> index ccbc3d994998..48fb016ce689 100644
>>> --- a/drivers/phy/broadcom/phy-brcm-sata.c
>>> +++ b/drivers/phy/broadcom/phy-brcm-sata.c
>>> @@ -329,7 +329,7 @@ static int brcm_nsp_sata_init(struct brcm_sata_port *port)
>>>    	/* Wait for pll_seq_done bit */
>>>    	try = 50;
>>> -	while (try--) {
>>> +	while (--try) {
>> Do we want to try reading the status 50 times? If yes, won't your change
>> break that? It will rather run the loop 49 times.
>>
> Yeah.  I know.  I'm pretty sure that 50 is a rough number, and not an
> exact thing.

Right, I agree that this must be rough count.
nice catch btw.

Best regards
Vivek

>
> regards,
> dan carpenter
>

-- 
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2017-06-20  8:57 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-06-19 10:56 [PATCH] phy: brcm-sata: fix a timeout test in init Dan Carpenter
2017-06-19 10:56 ` Dan Carpenter
2017-06-20  8:26 ` Vivek Gautam
2017-06-20  8:38   ` Vivek Gautam
2017-06-20  8:42   ` Dan Carpenter
2017-06-20  8:42     ` Dan Carpenter
2017-06-20  8:56     ` Vivek Gautam
2017-06-20  8:57       ` Vivek Gautam

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