ACPI: fix empty macros found by -Wextra
ACPI has a ton of macros which make a bunch of empty if's when configured
in non-debug mode.
[lenb: The code it complaines about is functionally correct,
so this patch is just to make -Wextra happier]
#define DBG()
if(...)
DBG();
next_c_statement
which turns into
if(...) ;
next_c_statement
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 41427a4..4893e25 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -16,7 +16,7 @@
#if ACPI_GLUE_DEBUG
#define DBG(x...) printk(PREFIX x)
#else
-#define DBG(x...)
+#define DBG(x...) do { } while(0)
#endif
static LIST_HEAD(bus_type_list);
static DECLARE_RWSEM(bus_type_sem);
diff --git a/include/acpi/acmacros.h b/include/acpi/acmacros.h
index 8948a64..e64a748 100644
--- a/include/acpi/acmacros.h
+++ b/include/acpi/acmacros.h
@@ -599,26 +599,26 @@
#define ACPI_DEBUG_EXEC(a)
#define ACPI_NORMAL_EXEC(a) a;
-#define ACPI_DEBUG_DEFINE(a)
-#define ACPI_DEBUG_ONLY_MEMBERS(a)
-#define ACPI_FUNCTION_NAME(a)
-#define ACPI_FUNCTION_TRACE(a)
-#define ACPI_FUNCTION_TRACE_PTR(a,b)
-#define ACPI_FUNCTION_TRACE_U32(a,b)
-#define ACPI_FUNCTION_TRACE_STR(a,b)
-#define ACPI_FUNCTION_EXIT
-#define ACPI_FUNCTION_STATUS_EXIT(s)
-#define ACPI_FUNCTION_VALUE_EXIT(s)
-#define ACPI_FUNCTION_ENTRY()
-#define ACPI_DUMP_STACK_ENTRY(a)
-#define ACPI_DUMP_OPERANDS(a,b,c,d,e)
-#define ACPI_DUMP_ENTRY(a,b)
-#define ACPI_DUMP_TABLES(a,b)
-#define ACPI_DUMP_PATHNAME(a,b,c,d)
-#define ACPI_DUMP_RESOURCE_LIST(a)
-#define ACPI_DUMP_BUFFER(a,b)
-#define ACPI_DEBUG_PRINT(pl)
-#define ACPI_DEBUG_PRINT_RAW(pl)
+#define ACPI_DEBUG_DEFINE(a) do { } while(0)
+#define ACPI_DEBUG_ONLY_MEMBERS(a) do { } while(0)
+#define ACPI_FUNCTION_NAME(a) do { } while(0)
+#define ACPI_FUNCTION_TRACE(a) do { } while(0)
+#define ACPI_FUNCTION_TRACE_PTR(a,b) do { } while(0)
+#define ACPI_FUNCTION_TRACE_U32(a,b) do { } while(0)
+#define ACPI_FUNCTION_TRACE_STR(a,b) do { } while(0)
+#define ACPI_FUNCTION_EXIT do { } while(0)
+#define ACPI_FUNCTION_STATUS_EXIT(s) do { } while(0)
+#define ACPI_FUNCTION_VALUE_EXIT(s) do { } while(0)
+#define ACPI_FUNCTION_ENTRY() do { } while(0)
+#define ACPI_DUMP_STACK_ENTRY(a) do { } while(0)
+#define ACPI_DUMP_OPERANDS(a,b,c,d,e) do { } while(0)
+#define ACPI_DUMP_ENTRY(a,b) do { } while(0)
+#define ACPI_DUMP_TABLES(a,b) do { } while(0)
+#define ACPI_DUMP_PATHNAME(a,b,c,d) do { } while(0)
+#define ACPI_DUMP_RESOURCE_LIST(a) do { } while(0)
+#define ACPI_DUMP_BUFFER(a,b) do { } while(0)
+#define ACPI_DEBUG_PRINT(pl) do { } while(0)
+#define ACPI_DEBUG_PRINT_RAW(pl) do { } while(0)
#define return_VOID return
#define return_ACPI_STATUS(s) return(s)