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ACPICA: Regression fix: reinstate safe exit macros

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Removal caused a regression on at least FreeBSD. This fix
reinstates the macros.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore
2013-03-08 09:22:23 +00:00
committed by Rafael J. Wysocki
parent c39660b232
commit fd1af7126f
10 changed files with 67 additions and 38 deletions
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53
include/acpi/acoutput.h
View File

@ -324,9 +324,9 @@
/* Helper macro */
#define ACPI_TRACE_ENTRY(name, function, cast, param) \
#define ACPI_TRACE_ENTRY(name, function, type, param) \
ACPI_FUNCTION_NAME (name) \
function (ACPI_DEBUG_PARAMETERS, cast (param))
function (ACPI_DEBUG_PARAMETERS, (type) (param))
/* The actual entry trace macros */
@ -335,13 +335,13 @@
acpi_ut_trace (ACPI_DEBUG_PARAMETERS)
#define ACPI_FUNCTION_TRACE_PTR(name, pointer) \
ACPI_TRACE_ENTRY (name, acpi_ut_trace_ptr, (void *), pointer)
ACPI_TRACE_ENTRY (name, acpi_ut_trace_ptr, void *, pointer)
#define ACPI_FUNCTION_TRACE_U32(name, value) \
ACPI_TRACE_ENTRY (name, acpi_ut_trace_u32, (u32), value)
ACPI_TRACE_ENTRY (name, acpi_ut_trace_u32, u32, value)
#define ACPI_FUNCTION_TRACE_STR(name, string) \
ACPI_TRACE_ENTRY (name, acpi_ut_trace_str, (char *), string)
ACPI_TRACE_ENTRY (name, acpi_ut_trace_str, char *, string)
#define ACPI_FUNCTION_ENTRY() \
acpi_ut_track_stack_ptr()
@ -355,16 +355,37 @@
*
* One of the FUNCTION_TRACE macros above must be used in conjunction
* with these macros so that "_AcpiFunctionName" is defined.
*
* There are two versions of most of the return macros. The default version is
* safer, since it avoids side-effects by guaranteeing that the argument will
* not be evaluated twice.
*
* A less-safe version of the macros is provided for optional use if the
* compiler uses excessive CPU stack (for example, this may happen in the
* debug case if code optimzation is disabled.)
*/
/* Exit trace helper macro */
#define ACPI_TRACE_EXIT(function, cast, param) \
#ifndef ACPI_SIMPLE_RETURN_MACROS
#define ACPI_TRACE_EXIT(function, type, param) \
ACPI_DO_WHILE0 ({ \
function (ACPI_DEBUG_PARAMETERS, cast (param)); \
return ((param)); \
register type _param = (type) (param); \
function (ACPI_DEBUG_PARAMETERS, _param); \
return (_param); \
})
#else /* Use original less-safe macros */
#define ACPI_TRACE_EXIT(function, type, param) \
ACPI_DO_WHILE0 ({ \
function (ACPI_DEBUG_PARAMETERS, (type) (param)); \
return (param); \
})
#endif /* ACPI_SIMPLE_RETURN_MACROS */
/* The actual exit macros */
#define return_VOID \
@ -374,13 +395,19 @@
})
#define return_ACPI_STATUS(status) \
ACPI_TRACE_EXIT (acpi_ut_status_exit, (acpi_status), status)
ACPI_TRACE_EXIT (acpi_ut_status_exit, acpi_status, status)
#define return_PTR(pointer) \
ACPI_TRACE_EXIT (acpi_ut_ptr_exit, (u8 *), pointer)
ACPI_TRACE_EXIT (acpi_ut_ptr_exit, void *, pointer)
#define return_VALUE(value) \
ACPI_TRACE_EXIT (acpi_ut_value_exit, (u64), value)
ACPI_TRACE_EXIT (acpi_ut_value_exit, u64, value)
#define return_UINT32(value) \
ACPI_TRACE_EXIT (acpi_ut_value_exit, u32, value)
#define return_UINT8(value) \
ACPI_TRACE_EXIT (acpi_ut_value_exit, u8, value)
/* Conditional execution */
@ -428,8 +455,10 @@
#define return_VOID return
#define return_ACPI_STATUS(s) return(s)
#define return_VALUE(s) return(s)
#define return_PTR(s) return(s)
#define return_VALUE(s) return(s)
#define return_UINT8(s) return(s)
#define return_UINT32(s) return(s)
#endif /* ACPI_DEBUG_OUTPUT */