Re: [PATCH 01/11] staging: gasket: core: debug log updates

2018-10-15 Thread Todd Poynor
On Mon, Oct 15, 2018 at 12:34 AM Greg Kroah-Hartman
 wrote:
>
> On Sun, Oct 14, 2018 at 09:59:17PM -0700, Todd Poynor wrote:
> > From: Todd Poynor 
> >
> > Add debug logs for device enable/disable events,
>
> Why?
>
> What is going to need this?

As one of the few people actually developing for Apex chips (but this
may be more soon), I ran into a situation where I cared about this.
But I usually cobble together custom debugging for development
situations, and generally don't get debug logs for
released-in-the-wild drivers, so I'm fine not including these or any
other debug logs.

It sounds like debug logs face a pretty high bar for acceptance.  I'm
happy to send a patch removing all of 'em from gasket/apex if that's
preferred.

> > remove logs for
> > callbacks (the called functions can generate their own logs if needed).
>
> That's a different thing than "adding" them, so shouldn't this really be
> 2 patches?  If it was, I could have accepted this patch already, and
> ignored the "add new logs" one :)

Sure, the callbacks most frequently occur during disable/enable events
and were linked in my brain, but will send a new patch to just remove
the useless callback logs.

>
> thanks,
>
> greg k-h


Re: [PATCH 01/11] staging: gasket: core: debug log updates

2018-10-15 Thread Todd Poynor
On Mon, Oct 15, 2018 at 12:34 AM Greg Kroah-Hartman
 wrote:
>
> On Sun, Oct 14, 2018 at 09:59:17PM -0700, Todd Poynor wrote:
> > From: Todd Poynor 
> >
> > Add debug logs for device enable/disable events,
>
> Why?
>
> What is going to need this?

As one of the few people actually developing for Apex chips (but this
may be more soon), I ran into a situation where I cared about this.
But I usually cobble together custom debugging for development
situations, and generally don't get debug logs for
released-in-the-wild drivers, so I'm fine not including these or any
other debug logs.

It sounds like debug logs face a pretty high bar for acceptance.  I'm
happy to send a patch removing all of 'em from gasket/apex if that's
preferred.

> > remove logs for
> > callbacks (the called functions can generate their own logs if needed).
>
> That's a different thing than "adding" them, so shouldn't this really be
> 2 patches?  If it was, I could have accepted this patch already, and
> ignored the "add new logs" one :)

Sure, the callbacks most frequently occur during disable/enable events
and were linked in my brain, but will send a new patch to just remove
the useless callback logs.

>
> thanks,
>
> greg k-h


Re: [PATCH 01/11] staging: gasket: core: debug log updates

2018-10-15 Thread Greg Kroah-Hartman
On Sun, Oct 14, 2018 at 09:59:17PM -0700, Todd Poynor wrote:
> From: Todd Poynor 
> 
> Add debug logs for device enable/disable events,

Why?

What is going to need this?

> remove logs for
> callbacks (the called functions can generate their own logs if needed).

That's a different thing than "adding" them, so shouldn't this really be
2 patches?  If it was, I could have accepted this patch already, and
ignored the "add new logs" one :)

thanks,

greg k-h


Re: [PATCH 01/11] staging: gasket: core: debug log updates

2018-10-15 Thread Greg Kroah-Hartman
On Sun, Oct 14, 2018 at 09:59:17PM -0700, Todd Poynor wrote:
> From: Todd Poynor 
> 
> Add debug logs for device enable/disable events,

Why?

What is going to need this?

> remove logs for
> callbacks (the called functions can generate their own logs if needed).

That's a different thing than "adding" them, so shouldn't this really be
2 patches?  If it was, I could have accepted this patch already, and
ignored the "add new logs" one :)

thanks,

greg k-h


[PATCH 01/11] staging: gasket: core: debug log updates

2018-10-14 Thread Todd Poynor
From: Todd Poynor 

Add debug logs for device enable/disable events, remove logs for
callbacks (the called functions can generate their own logs if needed).

Signed-off-by: Todd Poynor 
---
 drivers/staging/gasket/gasket_core.c | 9 +++--
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/gasket/gasket_core.c 
b/drivers/staging/gasket/gasket_core.c
index f230bec76ae4e..62a7515915e59 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -109,8 +109,6 @@ check_and_invoke_callback(struct gasket_dev *gasket_dev,
 {
int ret = 0;
 
-   dev_dbg(gasket_dev->dev, "check_and_invoke_callback %p\n",
-   cb_function);
if (cb_function) {
mutex_lock(_dev->mutex);
ret = cb_function(gasket_dev);
@@ -126,11 +124,8 @@ gasket_check_and_invoke_callback_nolock(struct gasket_dev 
*gasket_dev,
 {
int ret = 0;
 
-   if (cb_function) {
-   dev_dbg(gasket_dev->dev,
-   "Invoking device-specific callback.\n");
+   if (cb_function)
ret = cb_function(gasket_dev);
-   }
return ret;
 }
 
@@ -633,6 +628,7 @@ void gasket_disable_device(struct gasket_dev *gasket_dev)
gasket_dev->internal_desc->driver_desc;
int i;
 
+   dev_dbg(gasket_dev->dev, "disabling device\n");
/* Only delete the device if it has been successfully added. */
if (gasket_dev->dev_info.cdev_added)
cdev_del(_dev->dev_info.cdev);
@@ -1357,6 +1353,7 @@ int gasket_enable_device(struct gasket_dev *gasket_dev)
const struct gasket_driver_desc *driver_desc =
gasket_dev->internal_desc->driver_desc;
 
+   dev_dbg(gasket_dev->dev, "enabling device\n");
ret = gasket_interrupt_init(gasket_dev);
if (ret) {
dev_err(gasket_dev->dev,
-- 
2.19.0.605.g01d371f741-goog



[PATCH 01/11] staging: gasket: core: debug log updates

2018-10-14 Thread Todd Poynor
From: Todd Poynor 

Add debug logs for device enable/disable events, remove logs for
callbacks (the called functions can generate their own logs if needed).

Signed-off-by: Todd Poynor 
---
 drivers/staging/gasket/gasket_core.c | 9 +++--
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/gasket/gasket_core.c 
b/drivers/staging/gasket/gasket_core.c
index f230bec76ae4e..62a7515915e59 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -109,8 +109,6 @@ check_and_invoke_callback(struct gasket_dev *gasket_dev,
 {
int ret = 0;
 
-   dev_dbg(gasket_dev->dev, "check_and_invoke_callback %p\n",
-   cb_function);
if (cb_function) {
mutex_lock(_dev->mutex);
ret = cb_function(gasket_dev);
@@ -126,11 +124,8 @@ gasket_check_and_invoke_callback_nolock(struct gasket_dev 
*gasket_dev,
 {
int ret = 0;
 
-   if (cb_function) {
-   dev_dbg(gasket_dev->dev,
-   "Invoking device-specific callback.\n");
+   if (cb_function)
ret = cb_function(gasket_dev);
-   }
return ret;
 }
 
@@ -633,6 +628,7 @@ void gasket_disable_device(struct gasket_dev *gasket_dev)
gasket_dev->internal_desc->driver_desc;
int i;
 
+   dev_dbg(gasket_dev->dev, "disabling device\n");
/* Only delete the device if it has been successfully added. */
if (gasket_dev->dev_info.cdev_added)
cdev_del(_dev->dev_info.cdev);
@@ -1357,6 +1353,7 @@ int gasket_enable_device(struct gasket_dev *gasket_dev)
const struct gasket_driver_desc *driver_desc =
gasket_dev->internal_desc->driver_desc;
 
+   dev_dbg(gasket_dev->dev, "enabling device\n");
ret = gasket_interrupt_init(gasket_dev);
if (ret) {
dev_err(gasket_dev->dev,
-- 
2.19.0.605.g01d371f741-goog