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Date: Thu, 4 Feb 2021 19:25:29 +0100
From: Hans de Goede <hdegoede@...hat.com>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>,
Linux ACPI <linux-acpi@...r.kernel.org>
Cc: Linux PM <linux-pm@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Zhang Rui <rui.zhang@...el.com>,
Erik Kaneda <erik.kaneda@...el.com>,
Joe Perches <joe@...ches.com>,
Hanjun Guo <guohanjun@...wei.com>
Subject: Re: [PATCH v3 1/5] ACPI: AC: Clean up printing messages
Hi,
On 2/3/21 7:43 PM, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>
> Replace the ACPI_DEBUG_PRINT() and ACPI_EXCEPTION() instances
> in ac.c with acpi_handle_debug() and acpi_handle_info() calls,
> respectively, which among other things causes the excessive log
> level of the messages previously printed via ACPI_EXCEPTION() to
> be increased.
>
> Drop the _COMPONENT and ACPI_MODULE_NAME() definitions that are not
> used any more, drop the no longer needed ACPI_AC_COMPONENT definition
> from the headers and update the documentation accordingly.
>
> While at it, replace the direct printk() invocation with pr_info(),
> add a pr_fmt() definition to ac.c and drop the unneeded PREFIX
> symbol definition from there.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Thanks, patch looks good to me:
Reviewed-by: Hans de Goede <hdegoede@...hat.com>
Regards,
Hans
> ---
>
> v2 -> v3: Also add a pr_fmt() definition to ac.c and replace direct
> printk() with pr_info (no log level change).
>
> v1 -> v2: Changelog update.
>
> ---
> Documentation/firmware-guide/acpi/debug.rst | 1 -
> drivers/acpi/ac.c | 23 ++++++++++-------------
> drivers/acpi/sysfs.c | 1 -
> include/acpi/acpi_drivers.h | 1 -
> 4 files changed, 10 insertions(+), 16 deletions(-)
>
> Index: linux-pm/Documentation/firmware-guide/acpi/debug.rst
> ===================================================================
> --- linux-pm.orig/Documentation/firmware-guide/acpi/debug.rst
> +++ linux-pm/Documentation/firmware-guide/acpi/debug.rst
> @@ -52,7 +52,6 @@ shows the supported mask values, current
> ACPI_CA_DISASSEMBLER 0x00000800
> ACPI_COMPILER 0x00001000
> ACPI_TOOLS 0x00002000
> - ACPI_AC_COMPONENT 0x00020000
> ACPI_BATTERY_COMPONENT 0x00040000
> ACPI_BUTTON_COMPONENT 0x00080000
> ACPI_SBS_COMPONENT 0x00100000
> Index: linux-pm/drivers/acpi/ac.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/ac.c
> +++ linux-pm/drivers/acpi/ac.c
> @@ -6,6 +6,8 @@
> * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@...el.com>
> */
>
> +#define pr_fmt(fmt) "ACPI: AC: " fmt
> +
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/slab.h>
> @@ -18,8 +20,6 @@
> #include <linux/acpi.h>
> #include <acpi/battery.h>
>
> -#define PREFIX "ACPI: "
> -
> #define ACPI_AC_CLASS "ac_adapter"
> #define ACPI_AC_DEVICE_NAME "AC Adapter"
> #define ACPI_AC_FILE_STATE "state"
> @@ -28,9 +28,6 @@
> #define ACPI_AC_STATUS_ONLINE 0x01
> #define ACPI_AC_STATUS_UNKNOWN 0xFF
>
> -#define _COMPONENT ACPI_AC_COMPONENT
> -ACPI_MODULE_NAME("ac");
> -
> MODULE_AUTHOR("Paul Diefenbaugh");
> MODULE_DESCRIPTION("ACPI AC Adapter Driver");
> MODULE_LICENSE("GPL");
> @@ -102,8 +99,9 @@ static int acpi_ac_get_state(struct acpi
> status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL,
> &ac->state);
> if (ACPI_FAILURE(status)) {
> - ACPI_EXCEPTION((AE_INFO, status,
> - "Error reading AC Adapter state"));
> + acpi_handle_info(ac->device->handle,
> + "Error reading AC Adapter state: %s\n",
> + acpi_format_exception(status));
> ac->state = ACPI_AC_STATUS_UNKNOWN;
> return -ENODEV;
> }
> @@ -153,8 +151,8 @@ static void acpi_ac_notify(struct acpi_d
>
> switch (event) {
> default:
> - ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> - "Unsupported event [0x%x]\n", event));
> + acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n",
> + event);
> fallthrough;
> case ACPI_AC_NOTIFY_STATUS:
> case ACPI_NOTIFY_BUS_CHECK:
> @@ -278,9 +276,8 @@ static int acpi_ac_add(struct acpi_devic
> goto end;
> }
>
> - printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
> - acpi_device_name(device), acpi_device_bid(device),
> - ac->state ? "on-line" : "off-line");
> + pr_info("%s [%s] (%s)\n", acpi_device_name(device),
> + acpi_device_bid(device), ac->state ? "on-line" : "off-line");
>
> ac->battery_nb.notifier_call = acpi_ac_battery_notify;
> register_acpi_notifier(&ac->battery_nb);
> @@ -348,7 +345,7 @@ static int __init acpi_ac_init(void)
> for (i = 0; i < ARRAY_SIZE(acpi_ac_blacklist); i++)
> if (acpi_dev_present(acpi_ac_blacklist[i].hid, "1",
> acpi_ac_blacklist[i].hrv)) {
> - pr_info(PREFIX "AC: found native %s PMIC, not loading\n",
> + pr_info("found native %s PMIC, not loading\n",
> acpi_ac_blacklist[i].hid);
> return -ENODEV;
> }
> Index: linux-pm/drivers/acpi/sysfs.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/sysfs.c
> +++ linux-pm/drivers/acpi/sysfs.c
> @@ -52,7 +52,6 @@ static const struct acpi_dlayer acpi_deb
> ACPI_DEBUG_INIT(ACPI_COMPILER),
> ACPI_DEBUG_INIT(ACPI_TOOLS),
>
> - ACPI_DEBUG_INIT(ACPI_AC_COMPONENT),
> ACPI_DEBUG_INIT(ACPI_BATTERY_COMPONENT),
> ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
> ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
> Index: linux-pm/include/acpi/acpi_drivers.h
> ===================================================================
> --- linux-pm.orig/include/acpi/acpi_drivers.h
> +++ linux-pm/include/acpi/acpi_drivers.h
> @@ -15,7 +15,6 @@
> * Please update drivers/acpi/debug.c and Documentation/firmware-guide/acpi/debug.rst
> * if you add to this list.
> */
> -#define ACPI_AC_COMPONENT 0x00020000
> #define ACPI_BATTERY_COMPONENT 0x00040000
> #define ACPI_BUTTON_COMPONENT 0x00080000
> #define ACPI_SBS_COMPONENT 0x00100000
>
>
>
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