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authorLen Brown <len.brown@intel.com>2006-07-07 20:11:07 -0400
committerLen Brown <len.brown@intel.com>2006-07-09 15:19:44 -0400
commitab8aa06a5c0b75974fb1949365cbb20a15cedf14 (patch)
tree8498b3b3222198c45fa322b6fdd3215687dc30e4 /drivers/acpi
parent120bda20c6f64b32e8bfbdd7b34feafaa5f5332e (diff)
downloadop-kernel-dev-ab8aa06a5c0b75974fb1949365cbb20a15cedf14.zip
op-kernel-dev-ab8aa06a5c0b75974fb1949365cbb20a15cedf14.tar.gz
ACPI: acpi_os_get_thread_id() returns current
Linux mutexes and the debug code that that reference acpi_os_get_thread_id() are happy with 0. But the AML mutexes in exmutex.c expect a unique non-zero number for each thread - as they track this thread_id to permit the mutex re-entrancy defined by the ACPI spec. http://bugzilla.kernel.org/show_bug.cgi?id=6687 Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/executer/exmutex.c4
-rw-r--r--drivers/acpi/utilities/utdebug.c4
-rw-r--r--drivers/acpi/utilities/utmutex.c8
3 files changed, 8 insertions, 8 deletions
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index d8ac287..3a39c2e 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -267,9 +267,9 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
&& (obj_desc->mutex.os_mutex != ACPI_GLOBAL_LOCK)) {
ACPI_ERROR((AE_INFO,
"Thread %X cannot release Mutex [%4.4s] acquired by thread %X",
- walk_state->thread->thread_id,
+ (u32) walk_state->thread->thread_id,
acpi_ut_get_node_name(obj_desc->mutex.node),
- obj_desc->mutex.owner_thread->thread_id));
+ (u32) obj_desc->mutex.owner_thread->thread_id));
return_ACPI_STATUS(AE_AML_NOT_OWNER);
}
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 5ec1cfc..bb1eaf9 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -47,7 +47,7 @@
ACPI_MODULE_NAME("utdebug")
#ifdef ACPI_DEBUG_OUTPUT
-static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF;
+static acpi_thread_id acpi_gbl_prev_thread_id;
static char *acpi_gbl_fn_entry_str = "----Entry";
static char *acpi_gbl_fn_exit_str = "----Exit-";
@@ -181,7 +181,7 @@ acpi_ut_debug_print(u32 requested_debug_level,
if (ACPI_LV_THREADS & acpi_dbg_level) {
acpi_os_printf
("\n**** Context Switch from TID %X to TID %X ****\n\n",
- acpi_gbl_prev_thread_id, thread_id);
+ (u32) acpi_gbl_prev_thread_id, (u32) thread_id);
}
acpi_gbl_prev_thread_id = thread_id;
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
index dfc8f30..c39062a 100644
--- a/drivers/acpi/utilities/utmutex.c
+++ b/drivers/acpi/utilities/utmutex.c
@@ -244,14 +244,14 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
"Thread %X attempting to acquire Mutex [%s]\n",
- this_thread_id, acpi_ut_get_mutex_name(mutex_id)));
+ (u32) this_thread_id, acpi_ut_get_mutex_name(mutex_id)));
status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
ACPI_WAIT_FOREVER);
if (ACPI_SUCCESS(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
"Thread %X acquired Mutex [%s]\n",
- this_thread_id,
+ (u32) this_thread_id,
acpi_ut_get_mutex_name(mutex_id)));
acpi_gbl_mutex_info[mutex_id].use_count++;
@@ -259,7 +259,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
} else {
ACPI_EXCEPTION((AE_INFO, status,
"Thread %X could not acquire Mutex [%X]",
- this_thread_id, mutex_id));
+ (u32) this_thread_id, mutex_id));
}
return (status);
@@ -285,7 +285,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
this_thread_id = acpi_os_get_thread_id();
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %X releasing Mutex [%s]\n", this_thread_id,
+ "Thread %X releasing Mutex [%s]\n", (u32) this_thread_id,
acpi_ut_get_mutex_name(mutex_id)));
if (mutex_id > ACPI_MAX_MUTEX) {
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