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SubjectRe: [PATCH v3 4/4] ACPI: Update Container hotplug messages
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On Thu, 2012-07-26 at 13:23 -0600, Bjorn Helgaas wrote:
> On Wed, Jul 25, 2012 at 5:12 PM, Toshi Kani <toshi.kani@hp.com> wrote:
> > Updated Container hotplug log messages with acpi_pr_<level>()
> > and pr_<level>().
> >
> > Signed-off-by: Toshi Kani <toshi.kani@hp.com>
> > ---
> > drivers/acpi/container.c | 6 +++---
> > 1 files changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
> > index 01a986d..643e962 100644
> > --- a/drivers/acpi/container.c
> > +++ b/drivers/acpi/container.c
> > @@ -99,7 +99,7 @@ static int acpi_container_add(struct acpi_device *device)
> >
> >
> > if (!device) {
> > - printk(KERN_ERR PREFIX "device is NULL\n");
> > + pr_err(PREFIX "device is NULL\n");
> > return -EINVAL;
> > }
>
> This whole "if (!device)" check and the printk should be deleted. If
> the ACPI core calls .add() with a null acpi_device pointer, it's a
> core bug, and it's better to take the oops and get the backtrace.

Agreed. Delete the check.

> >
> > @@ -164,7 +164,7 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
> > case ACPI_NOTIFY_BUS_CHECK:
> > /* Fall through */
> > case ACPI_NOTIFY_DEVICE_CHECK:
> > - printk(KERN_WARNING "Container driver received %s event\n",
> > + pr_warn("Container driver received %s event\n",
> > (type == ACPI_NOTIFY_BUS_CHECK) ?
> > "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK");
>
> This message looks dubious. Receiving this event should be a normal
> occurrence, so the message might be useful for debugging, but doesn't
> seem like a KERN_WARNING event for the user.

Changed to pr_debug() for now.


Thanks!
-Toshi


> >
> > @@ -185,7 +185,7 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context)
> >
> > result = container_device_add(&device, handle);
> > if (result) {
> > - pr_warn("Failed to add container\n");
> > + acpi_pr_warn(handle, "Failed to add container\n");
> > break;
> > }
> >
> > --
> > 1.7.7.6
> >




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