From bd950799d9510cac994fad2ea020767fe878b84b Mon Sep 17 00:00:00 2001 From: Lan Tianyu Date: Tue, 24 Sep 2013 18:11:48 -0600 Subject: [PATCH] PCI: acpiphp: Convert to dynamic debug This patch is to use pr_debug/info/warn/err to replace acpiphp debug functions and remove module's debug param. User interface change: before this patch, boot with the "acpiphp.debug" kernel parameter to turn on debug. After this patch, set CONFIG_DYNAMIC_DEBUG=y and boot with "acpiphp.dyndebug=+p" instead. See Documentation/dynamic-debug-howto.txt. [bhelgaas: changelog] Signed-off-by: Lan Tianyu Signed-off-by: Bjorn Helgaas --- drivers/pci/hotplug/acpiphp.h | 10 -------- drivers/pci/hotplug/acpiphp_core.c | 37 +++++++++++++++--------------- drivers/pci/hotplug/acpiphp_glue.c | 23 ++++++++++--------- 3 files changed, 30 insertions(+), 40 deletions(-) diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index f4e028924667..26100f510b10 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -39,16 +39,6 @@ #include #include -#define dbg(format, arg...) \ - do { \ - if (acpiphp_debug) \ - printk(KERN_DEBUG "%s: " format, \ - MY_NAME , ## arg); \ - } while (0) -#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) -#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) -#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) - struct acpiphp_context; struct acpiphp_bridge; struct acpiphp_slot; diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c index bf2203ef1308..8650d39db392 100644 --- a/drivers/pci/hotplug/acpiphp_core.c +++ b/drivers/pci/hotplug/acpiphp_core.c @@ -31,6 +31,8 @@ * */ +#define pr_fmt(fmt) "acpiphp: " fmt + #include #include #include @@ -43,12 +45,9 @@ #include #include "acpiphp.h" -#define MY_NAME "acpiphp" - /* name size which is used for entries in pcihpfs */ #define SLOT_NAME_SIZE 21 /* {_SUN} */ -bool acpiphp_debug; bool acpiphp_disabled; /* local variables */ @@ -61,9 +60,7 @@ static struct acpiphp_attention_info *attention_info; MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); -MODULE_PARM_DESC(debug, "Debugging mode enabled or not"); MODULE_PARM_DESC(disable, "disable acpiphp driver"); -module_param_named(debug, acpiphp_debug, bool, 0644); module_param_named(disable, acpiphp_disabled, bool, 0444); /* export the attention callback registration methods */ @@ -139,7 +136,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot) { struct slot *slot = hotplug_slot->private; - dbg("%s - physical_slot = %s\n", __func__, slot_name(slot)); + pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot)); /* enable the specified slot */ return acpiphp_enable_slot(slot->acpi_slot); @@ -156,7 +153,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot) { struct slot *slot = hotplug_slot->private; - dbg("%s - physical_slot = %s\n", __func__, slot_name(slot)); + pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot)); /* disable the specified slot */ return acpiphp_disable_and_eject_slot(slot->acpi_slot); @@ -176,8 +173,9 @@ static int disable_slot(struct hotplug_slot *hotplug_slot) { int retval = -ENODEV; - dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot)); - + pr_debug("%s - physical_slot = %s\n", __func__, + hotplug_slot_name(hotplug_slot)); + if (attention_info && try_module_get(attention_info->owner)) { retval = attention_info->set_attn(hotplug_slot, status); module_put(attention_info->owner); @@ -199,7 +197,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value) { struct slot *slot = hotplug_slot->private; - dbg("%s - physical_slot = %s\n", __func__, slot_name(slot)); + pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot)); *value = acpiphp_get_power_status(slot->acpi_slot); @@ -221,7 +219,8 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value) { int retval = -EINVAL; - dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot)); + pr_debug("%s - physical_slot = %s\n", __func__, + hotplug_slot_name(hotplug_slot)); if (attention_info && try_module_get(attention_info->owner)) { retval = attention_info->get_attn(hotplug_slot, value); @@ -244,7 +243,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value) { struct slot *slot = hotplug_slot->private; - dbg("%s - physical_slot = %s\n", __func__, slot_name(slot)); + pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot)); *value = acpiphp_get_latch_status(slot->acpi_slot); @@ -264,7 +263,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) { struct slot *slot = hotplug_slot->private; - dbg("%s - physical_slot = %s\n", __func__, slot_name(slot)); + pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot)); *value = acpiphp_get_adapter_status(slot->acpi_slot); @@ -279,7 +278,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot) { struct slot *slot = hotplug_slot->private; - dbg("%s - physical_slot = %s\n", __func__, slot_name(slot)); + pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot)); kfree(slot->hotplug_slot); kfree(slot); @@ -322,11 +321,11 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot, if (retval == -EBUSY) goto error_hpslot; if (retval) { - err("pci_hp_register failed with error %d\n", retval); + pr_err("pci_hp_register failed with error %d\n", retval); goto error_hpslot; } - info("Slot [%s] registered\n", slot_name(slot)); + pr_info("Slot [%s] registered\n", slot_name(slot)); return 0; error_hpslot: @@ -343,17 +342,17 @@ void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *acpiphp_slot) struct slot *slot = acpiphp_slot->slot; int retval = 0; - info("Slot [%s] unregistered\n", slot_name(slot)); + pr_info("Slot [%s] unregistered\n", slot_name(slot)); retval = pci_hp_deregister(slot->hotplug_slot); if (retval) - err("pci_hp_deregister failed with error %d\n", retval); + pr_err("pci_hp_deregister failed with error %d\n", retval); } void __init acpiphp_init(void) { - info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n", + pr_info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n", acpiphp_disabled ? ", disabled by user; please report a bug" : ""); } diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 0b7d23b4ad95..6557702a0592 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -39,6 +39,8 @@ * bus. It loses the refcount when the the driver unloads. */ +#define pr_fmt(fmt) "acpiphp_glue: " fmt + #include #include @@ -58,8 +60,6 @@ static LIST_HEAD(bridge_list); static DEFINE_MUTEX(bridge_mutex); static DEFINE_MUTEX(acpiphp_context_lock); -#define MY_NAME "acpiphp_glue" - static void handle_hotplug_event(acpi_handle handle, u32 type, void *data); static void acpiphp_sanitize_bus(struct pci_bus *bus); static void acpiphp_set_hpp_values(struct pci_bus *bus); @@ -335,7 +335,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data, if (ACPI_FAILURE(status)) sun = bridge->nr_slots; - dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n", + pr_debug("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n", sun, pci_domain_nr(pbus), pbus->number, device); retval = acpiphp_register_hotplug_slot(slot, sun); @@ -343,10 +343,10 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data, slot->slot = NULL; bridge->nr_slots--; if (retval == -EBUSY) - warn("Slot %llu already registered by another " + pr_warn("Slot %llu already registered by another " "hotplug driver\n", sun); else - warn("acpiphp_register_hotplug_slot failed " + pr_warn("acpiphp_register_hotplug_slot failed " "(err code = 0x%x)\n", retval); } /* Even if the slot registration fails, we can still use it. */ @@ -369,7 +369,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data, if (register_hotplug_dock_device(handle, &acpiphp_dock_ops, context, acpiphp_dock_init, acpiphp_dock_release)) - dbg("failed to register dock device\n"); + pr_debug("failed to register dock device\n"); } /* install notify handler */ @@ -427,7 +427,7 @@ static void cleanup_bridge(struct acpiphp_bridge *bridge) ACPI_SYSTEM_NOTIFY, handle_hotplug_event); if (ACPI_FAILURE(status)) - err("failed to remove notify handler\n"); + pr_err("failed to remove notify handler\n"); } } if (slot->slot) @@ -830,8 +830,9 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data) switch (type) { case ACPI_NOTIFY_BUS_CHECK: /* bus re-enumerate */ - dbg("%s: Bus check notify on %s\n", __func__, objname); - dbg("%s: re-enumerating slots under %s\n", __func__, objname); + pr_debug("%s: Bus check notify on %s\n", __func__, objname); + pr_debug("%s: re-enumerating slots under %s\n", + __func__, objname); if (bridge) { acpiphp_check_bridge(bridge); } else { @@ -845,7 +846,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data) case ACPI_NOTIFY_DEVICE_CHECK: /* device check */ - dbg("%s: Device check notify on %s\n", __func__, objname); + pr_debug("%s: Device check notify on %s\n", __func__, objname); if (bridge) { acpiphp_check_bridge(bridge); } else { @@ -866,7 +867,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data) case ACPI_NOTIFY_EJECT_REQUEST: /* request device eject */ - dbg("%s: Device eject notify on %s\n", __func__, objname); + pr_debug("%s: Device eject notify on %s\n", __func__, objname); acpiphp_disable_and_eject_slot(func->slot); break; } -- GitLab