From 1a36561607abf1405b56a41aac2fd163429cd1f8 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 28 Mar 2006 17:04:00 -0500 Subject: ACPI: simplify scan.c coding No functional changes; just remove leftover, unused "buffer" and simplify control flow (no need to remember error values and goto the end, when we can simply return the value directly). Signed-off-by: Bjorn Helgaas Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/scan.c | 36 +++++++++++++----------------------- 1 file changed, 13 insertions(+), 23 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index a0ab828b2cc..08ba85cab2d 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -234,12 +234,9 @@ static int acpi_bus_get_power_flags(struct acpi_device *device) int acpi_match_ids(struct acpi_device *device, char *ids) { - int error = 0; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - if (device->flags.hardware_id) if (strstr(ids, device->pnp.hardware_id)) - goto Done; + return 0; if (device->flags.compatible_ids) { struct acpi_compatible_id_list *cid_list = device->pnp.cid_list; @@ -248,15 +245,10 @@ int acpi_match_ids(struct acpi_device *device, char *ids) /* compare multiple _CID entries against driver ids */ for (i = 0; i < cid_list->count; i++) { if (strstr(ids, cid_list->id[i].value)) - goto Done; + return 0; } } - error = -ENOENT; - - Done: - if (buffer.pointer) - acpi_os_free(buffer.pointer); - return error; + return -ENOENT; } static acpi_status @@ -645,21 +637,19 @@ EXPORT_SYMBOL(acpi_bus_register_driver); */ int acpi_bus_unregister_driver(struct acpi_driver *driver) { - int error = 0; - ACPI_FUNCTION_TRACE("acpi_bus_unregister_driver"); - if (driver) { - acpi_driver_detach(driver); + if (!driver) + return_VALUE(-EINVAL); - if (!atomic_read(&driver->references)) { - spin_lock(&acpi_device_lock); - list_del_init(&driver->node); - spin_unlock(&acpi_device_lock); - } - } else - error = -EINVAL; - return_VALUE(error); + acpi_driver_detach(driver); + + if (!atomic_read(&driver->references)) { + spin_lock(&acpi_device_lock); + list_del_init(&driver->node); + spin_unlock(&acpi_device_lock); + } + return_VALUE(0); } EXPORT_SYMBOL(acpi_bus_unregister_driver); -- cgit v1.2.3-18-g5258 From 200739c179c63d21804e9e8e2ced265243831579 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 28 Mar 2006 17:04:00 -0500 Subject: ACPI: remove __init/__exit from Asus .add()/.remove() methods Even though the devices claimed by asus_acpi.c can not be hot-plugged, the driver registration infrastructure allows the .add() and .remove() methods to be called at any time while the driver is registered. So remove __init and __exit from them. Signed-off-by: Bjorn Helgaas Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/asus_acpi.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c index f4c87750dbf..3f3c392d6be 100644 --- a/drivers/acpi/asus_acpi.c +++ b/drivers/acpi/asus_acpi.c @@ -817,7 +817,7 @@ typedef int (proc_writefunc) (struct file * file, const char __user * buffer, unsigned long count, void *data); static int -__init asus_proc_add(char *name, proc_writefunc * writefunc, +asus_proc_add(char *name, proc_writefunc * writefunc, proc_readfunc * readfunc, mode_t mode, struct acpi_device *device) { @@ -836,7 +836,7 @@ __init asus_proc_add(char *name, proc_writefunc * writefunc, return 0; } -static int __init asus_hotk_add_fs(struct acpi_device *device) +static int asus_hotk_add_fs(struct acpi_device *device) { struct proc_dir_entry *proc; mode_t mode; @@ -954,7 +954,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) * This function is used to initialize the hotk with right values. In this * method, we can make all the detection we want, and modify the hotk struct */ -static int __init asus_hotk_get_info(void) +static int asus_hotk_get_info(void) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -1101,7 +1101,7 @@ static int __init asus_hotk_get_info(void) return AE_OK; } -static int __init asus_hotk_check(void) +static int asus_hotk_check(void) { int result = 0; @@ -1119,7 +1119,7 @@ static int __init asus_hotk_check(void) return result; } -static int __init asus_hotk_add(struct acpi_device *device) +static int asus_hotk_add(struct acpi_device *device) { acpi_status status = AE_OK; int result; -- cgit v1.2.3-18-g5258 From df42baa0d8e54df18dd9366dd7c93d6be7d5d063 Mon Sep 17 00:00:00 2001 From: Ashok Raj Date: Tue, 28 Mar 2006 17:04:00 -0500 Subject: ACPI: build fix for u8 cpu_index Local apic entries are only 8 bits, but it seemed to not be caught with u8 return value result in the check cpu_index >= NR_CPUS becomming always false. drivers/acpi/processor_core.c: In function `acpi_processor_get_info': drivers/acpi/processor_core.c:483: warning: comparison is always false due to limited range of data type Signed-off-by: Ashok Raj Cc: Dave Jones Cc: Kenji Kaneshige Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/processor_core.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 713b763884a..e5041c4f3c2 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -388,7 +388,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device) /* Use the acpiid in MADT to map cpus in case of SMP */ #ifndef CONFIG_SMP -#define convert_acpiid_to_cpu(acpi_id) (0xff) +#define convert_acpiid_to_cpu(acpi_id) (-1) #else #ifdef CONFIG_IA64 @@ -401,7 +401,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device) #define ARCH_BAD_APICID (0xff) #endif -static u8 convert_acpiid_to_cpu(u8 acpi_id) +static int convert_acpiid_to_cpu(u8 acpi_id) { u16 apic_id; int i; @@ -427,7 +427,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr) acpi_status status = 0; union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; - u8 cpu_index; + int cpu_index; static int cpu0_initialized; ACPI_FUNCTION_TRACE("acpi_processor_get_info"); @@ -473,7 +473,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr) cpu_index = convert_acpiid_to_cpu(pr->acpi_id); /* Handle UP system running SMP kernel, with no LAPIC in MADT */ - if (!cpu0_initialized && (cpu_index == 0xff) && + if (!cpu0_initialized && (cpu_index == -1) && (num_online_cpus() == 1)) { cpu_index = 0; } @@ -487,7 +487,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr) * less than the max # of CPUs. They should be ignored _iff * they are physically not present. */ - if (cpu_index >= NR_CPUS) { + if (cpu_index == -1) { if (ACPI_FAILURE (acpi_processor_hotadd_init(pr->handle, &pr->id))) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, -- cgit v1.2.3-18-g5258 From e6f1f3c54974a30c65ea0b699809d12f0aa04272 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 3 Apr 2006 13:14:00 -0400 Subject: ACPI: Don't print internal BIOS names of wakeup devices Internal BIOS names like these should be exposed to the user as little as possible: ACPI wakeup devices: C069 C0CE C1D1 C0DE C1D4 Eventually, the "wakeup" property of a device should be exported via the device tree, not by a printk of an internal BIOS name. For the hard-core, these are still available in /proc/acpi/wakeup_devices, just not printed to dmesg. Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown --- drivers/acpi/sleep/wakeup.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c index 85df0ceda2a..af1dbabaf0b 100644 --- a/drivers/acpi/sleep/wakeup.c +++ b/drivers/acpi/sleep/wakeup.c @@ -155,7 +155,6 @@ static int __init acpi_wakeup_device_init(void) if (acpi_disabled) return 0; - printk("ACPI wakeup devices: \n"); spin_lock(&acpi_device_lock); list_for_each_safe(node, next, &acpi_wakeup_device_list) { @@ -174,10 +173,8 @@ static int __init acpi_wakeup_device_init(void) dev->wakeup.state.enabled = 1; spin_lock(&acpi_device_lock); } - printk("%4s ", dev->pnp.bus_id); } spin_unlock(&acpi_device_lock); - printk("\n"); return 0; } -- cgit v1.2.3-18-g5258