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-rw-r--r--drivers/acpi/acpica/dscontrol.c2
-rw-r--r--drivers/acpi/acpica/dswexec.c3
-rw-r--r--drivers/acpi/acpica/dswload.c2
-rw-r--r--drivers/acpi/acpica/dswload2.c2
-rw-r--r--drivers/acpi/acpica/exfldio.c2
-rw-r--r--drivers/acpi/acpica/exresop.c4
-rw-r--r--drivers/acpi/acpica/exstore.c4
-rw-r--r--drivers/acpi/acpica/hwgpe.c2
-rw-r--r--drivers/acpi/acpica/utdelete.c2
-rw-r--r--include/acpi/actypes.h6
-rw-r--r--include/acpi/platform/acgcc.h15
11 files changed, 32 insertions, 12 deletions
diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c
index 4b5b6e859f62..b58ffc7acdb9 100644
--- a/drivers/acpi/acpica/dscontrol.c
+++ b/drivers/acpi/acpica/dscontrol.c
@@ -62,7 +62,7 @@ acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
}
}
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
case AML_IF_OP:
/*
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index 1d4f8c81028c..4a9799246fae 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -598,8 +598,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
break;
}
- /* Fall through */
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
case AML_INT_EVAL_SUBTREE_OP:
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 27069325b6de..dd97c86f8e41 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -224,7 +224,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state *walk_state,
break;
}
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
default:
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index edadbe146506..d9a3dfca7555 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -214,7 +214,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
break;
}
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
default:
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index ade35ff1c7ba..cde24e0fa6a8 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -434,7 +434,7 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
* region_field case and write the datum to the Operation Region
*/
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
case ACPI_TYPE_LOCAL_REGION_FIELD:
/*
diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
index 4d1b22971d58..4a0f8b8bfe62 100644
--- a/drivers/acpi/acpica/exresop.c
+++ b/drivers/acpi/acpica/exresop.c
@@ -198,7 +198,7 @@ acpi_ex_resolve_operands(u16 opcode,
target_op = AML_DEBUG_OP;
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
case ACPI_REFCLASS_ARG:
case ACPI_REFCLASS_LOCAL:
@@ -264,7 +264,7 @@ acpi_ex_resolve_operands(u16 opcode,
* Else not a string - fall through to the normal Reference
* case below
*/
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
case ARGI_REFERENCE: /* References: */
case ARGI_INTEGER_REF:
diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index 3adc0a29d890..8fe33051275d 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -96,7 +96,7 @@ acpi_ex_store(union acpi_operand_object *source_desc,
return_ACPI_STATUS(AE_OK);
}
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
default:
@@ -422,7 +422,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
break;
}
- /* Fallthrough */
+ ACPI_FALLTHROUGH;
case ACPI_TYPE_DEVICE:
case ACPI_TYPE_EVENT:
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index b13a4ed5bc63..0c84300e915c 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -167,7 +167,7 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action)
return (AE_BAD_PARAMETER);
}
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
case ACPI_GPE_ENABLE:
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 4c0d4e434196..624a26794d55 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -112,7 +112,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
gpe_block);
}
- /*lint -fallthrough */
+ ACPI_FALLTHROUGH;
case ACPI_TYPE_PROCESSOR:
case ACPI_TYPE_THERMAL:
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 647cb11d0a0a..2a32593691bc 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1286,4 +1286,10 @@ typedef enum {
#define ACPI_OPT_END -1
+/* Definitions for explicit fallthrough */
+
+#ifndef ACPI_FALLTHROUGH
+#define ACPI_FALLTHROUGH do {} while(0)
+#endif
+
#endif /* __ACTYPES_H__ */
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index 7d63d03cf507..91f7a02c798a 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -54,4 +54,19 @@ typedef __builtin_va_list va_list;
#define ACPI_USE_NATIVE_MATH64
+/* GCC did not support __has_attribute until 5.1. */
+
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+/*
+ * Explictly mark intentional explicit fallthrough to silence
+ * -Wimplicit-fallthrough in GCC 7.1+.
+ */
+
+#if __has_attribute(__fallthrough__)
+#define ACPI_FALLTHROUGH __attribute__((__fallthrough__))
+#endif
+
#endif /* __ACGCC_H__ */