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Date: Fri, 05 Jun 2009 08:45:12 -0700
From: Joe Perches <joe@...ches.com>
To: Corentin Chary <corentin.chary@...il.com>
Cc: Alan Jenkins <alan-jenkins@...fmail.co.uk>,
acpi4asus-user@...ts.sourceforge.net,
LKML <linux-kernel@...r.kernel.org>,
Len Brown <len.brown@...el.com>,
Matthew Garrett <mjg@...hat.com>,
Darren Salt <linux@...mustbejoking.demon.co.uk>
Subject: Re: [PATCH] eeepc-laptop.c: use pr_fmt and pr_<level>
On Fri, 2009-06-05 at 13:57 +0200, Corentin Chary wrote:
> On Fri, Jun 5, 2009 at 1:00 PM, Joe Perches<joe@...ches.com> wrote:
> > On Fri, 2009-06-05 at 11:54 +0100, Alan Jenkins wrote:
> >> Is EEEPC_HOTK_FILE used anywhere else? It would be clearer if you were
> >> able to just use "eeepc: " or whatever and remove the definition of
> >> EEEPC_HOTK_FILE.
> > It is used elsewhere and perhaps it'd be better to use KBUILD_MODNAME.
> I think we can't use KBUILD_MODNAME because "eeepc" is used for
> platform_device, backlight and input device. Using "eeepc-laptop"
> would break compatibility.
What compatibility would it break?
Logging messages are not guaranteed to be stable across versions.
Here's the patch against the latest acpi4asus tree.
There is a proposed patch from Pekka that may impact this patch.
Signed-off-by: Joe Perches <joe@...ches.com>
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 4e1cf2d..fef9172 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -16,6 +16,8 @@
* GNU General Public License for more details.
*/
+#define pr_fmt(fmt) EEEPC_HOTK_FILE ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -41,11 +43,6 @@
#define EEEPC_HOTK_DEVICE_NAME "Hotkey"
#define EEEPC_HOTK_HID "ASUS010"
-#define EEEPC_LOG EEEPC_HOTK_FILE ": "
-#define EEEPC_ERR KERN_ERR EEEPC_LOG
-#define EEEPC_WARNING KERN_WARNING EEEPC_LOG
-#define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG
-#define EEEPC_INFO KERN_INFO EEEPC_LOG
/*
* Definitions for Asus EeePC
@@ -269,7 +266,7 @@ static int set_acpi(int cm, int value)
if (method == NULL)
return -ENODEV;
if (write_acpi_int(ehotk->handle, method, value, NULL))
- printk(EEEPC_WARNING "Error writing %s\n", method);
+ pr_warning("Error writing %s\n", method);
}
return 0;
}
@@ -282,7 +279,7 @@ static int get_acpi(int cm)
if (method == NULL)
return -ENODEV;
if (read_acpi_int(ehotk->handle, method, &value))
- printk(EEEPC_WARNING "Error reading %s\n", method);
+ pr_warning("Error reading %s\n", method);
}
return value;
}
@@ -536,26 +533,23 @@ static int eeepc_hotk_check(void)
if (ehotk->device->status.present) {
if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag,
&buffer)) {
- printk(EEEPC_ERR "Hotkey initialization failed\n");
+ pr_err("Hotkey initialization failed\n");
return -ENODEV;
} else {
- printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n",
- ehotk->init_flag);
+ pr_notice("Hotkey init flags 0x%x\n", ehotk->init_flag);
}
/* get control methods supported */
if (read_acpi_int(ehotk->handle, "CMSG"
, &ehotk->cm_supported)) {
- printk(EEEPC_ERR
- "Get control methods supported failed\n");
+ pr_err("Get control methods supported failed\n");
return -ENODEV;
} else {
- printk(EEEPC_INFO
- "Get control methods supported: 0x%x\n",
- ehotk->cm_supported);
+ pr_info("Get control methods supported: 0x%x\n",
+ ehotk->cm_supported);
}
ehotk->inputdev = input_allocate_device();
if (!ehotk->inputdev) {
- printk(EEEPC_INFO "Unable to allocate input device\n");
+ pr_info("Unable to allocate input device\n");
return 0;
}
ehotk->inputdev->name = "Asus EeePC extra buttons";
@@ -574,12 +568,12 @@ static int eeepc_hotk_check(void)
}
result = input_register_device(ehotk->inputdev);
if (result) {
- printk(EEEPC_INFO "Unable to register input device\n");
+ pr_info("Unable to register input device\n");
input_free_device(ehotk->inputdev);
return 0;
}
} else {
- printk(EEEPC_ERR "Hotkey device not present, aborting\n");
+ pr_err("Hotkey device not present, aborting\n");
return -EINVAL;
}
return 0;
@@ -620,7 +614,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
return;
if (!bus) {
- printk(EEEPC_WARNING "Unable to find PCI bus 1?\n");
+ pr_warning("Unable to find PCI bus 1?\n");
return;
}
@@ -637,7 +631,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
if (dev) {
pci_bus_assign_resources(bus);
if (pci_bus_add_device(dev))
- printk(EEEPC_ERR "Unable to hotplug wifi\n");
+ pr_err("Unable to hotplug wifi\n");
}
} else {
dev = pci_get_slot(bus, 0);
@@ -710,8 +704,7 @@ static int eeepc_register_rfkill_notifier(char *node)
eeepc_rfkill_notify,
NULL);
if (ACPI_FAILURE(status))
- printk(EEEPC_WARNING
- "Failed to register notify on %s\n", node);
+ pr_warning("Failed to register notify on %s\n", node);
} else
return -ENODEV;
@@ -730,8 +723,7 @@ static void eeepc_unregister_rfkill_notifier(char *node)
ACPI_SYSTEM_NOTIFY,
eeepc_rfkill_notify);
if (ACPI_FAILURE(status))
- printk(EEEPC_ERR
- "Error removing rfkill notify handler %s\n",
+ pr_err("Error removing rfkill notify handler %s\n",
node);
}
}
@@ -748,7 +740,7 @@ static int eeepc_setup_pci_hotplug(void)
struct pci_bus *bus = pci_find_bus(0, 1);
if (!bus) {
- printk(EEEPC_ERR "Unable to find wifi PCI bus\n");
+ pr_err("Unable to find wifi PCI bus\n");
return -ENODEV;
}
@@ -769,7 +761,7 @@ static int eeepc_setup_pci_hotplug(void)
ret = pci_hp_register(ehotk->hotplug_slot, bus, 0, "eeepc-wifi");
if (ret) {
- printk(EEEPC_ERR "Unable to register hotplug slot - %d\n", ret);
+ pr_err("Unable to register hotplug slot - %d\n", ret);
goto error_register;
}
@@ -791,7 +783,7 @@ static int eeepc_hotk_add(struct acpi_device *device)
if (!device)
return -EINVAL;
- printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n");
+ pr_notice(EEEPC_HOTK_NAME "\n");
ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL);
if (!ehotk)
return -ENOMEM;
@@ -807,7 +799,7 @@ static int eeepc_hotk_add(struct acpi_device *device)
status = acpi_install_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY,
eeepc_hotk_notify, ehotk);
if (ACPI_FAILURE(status))
- printk(EEEPC_ERR "Error installing notify handler\n");
+ pr_err("Error installing notify handler\n");
eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6");
eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7");
@@ -908,7 +900,7 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type)
status = acpi_remove_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY,
eeepc_hotk_notify);
if (ACPI_FAILURE(status))
- printk(EEEPC_ERR "Error removing notify handler\n");
+ pr_err("Error removing notify handler\n");
eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
@@ -1080,8 +1072,7 @@ static int eeepc_backlight_init(struct device *dev)
bd = backlight_device_register(EEEPC_HOTK_FILE, dev,
NULL, &eeepcbl_ops);
if (IS_ERR(bd)) {
- printk(EEEPC_ERR
- "Could not register eeepc backlight device\n");
+ pr_err("Could not register eeepc backlight device\n");
eeepc_backlight_device = NULL;
return PTR_ERR(bd);
}
@@ -1100,8 +1091,7 @@ static int eeepc_hwmon_init(struct device *dev)
hwmon = hwmon_device_register(dev);
if (IS_ERR(hwmon)) {
- printk(EEEPC_ERR
- "Could not register eeepc hwmon device\n");
+ pr_err("Could not register eeepc hwmon device\n");
eeepc_hwmon_device = NULL;
return PTR_ERR(hwmon);
}
@@ -1134,8 +1124,7 @@ static int __init eeepc_laptop_init(void)
if (result)
goto fail_backlight;
} else
- printk(EEEPC_INFO "Backlight controlled by ACPI video "
- "driver\n");
+ pr_info("Backlight controlled by ACPI video driver\n");
result = eeepc_hwmon_init(dev);
if (result)
--
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