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[v4,54/59] acpi: Use defines for field lengths

Message ID 20200922184544.2920969-25-sjg@chromium.org
State Accepted
Commit 2a2ebf880cae6d961b8259b7b767d0aa0d34f070
Delegated to: Bin Meng
Headers show
Series dm: Add programatic generation of ACPI tables (part D) | expand

Commit Message

Simon Glass Sept. 22, 2020, 6:45 p.m. UTC 
A few fields have an open-coded length. Use the defines for this purpose
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---

(no changes since v1)

 include/acpi/acpi_table.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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Patch

diff --git a/include/acpi/acpi_table.h b/include/acpi/acpi_table.h
index 9fba6536f50..3a243bf19ce 100644
--- a/include/acpi/acpi_table.h
+++ b/include/acpi/acpi_table.h
@@ -13,6 +13,7 @@ 
 #ifndef __ACPI_TABLE_H__
 #define __ACPI_TABLE_H__
 
+#include <dm/acpi.h>
 #include <linux/bitops.h>
 
 #define RSDP_SIG		"RSD PTR "	/* RSDP pointer signature */
@@ -48,7 +49,7 @@  struct acpi_rsdp {
 
 /* Generic ACPI header, provided by (almost) all tables */
 struct __packed acpi_table_header {
-	char signature[4];	/* ACPI signature (4 ASCII characters) */
+	char signature[ACPI_NAME_LEN];	/* ACPI signature (4 ASCII chars) */
 	u32 length;		/* Table length in bytes (incl. header) */
 	u8 revision;		/* Table version (not ACPI version!) */
 	volatile u8 checksum;	/* To make sum of entire table == 0 */
@@ -263,7 +264,7 @@  struct __packed acpi_fadt {
 
 /* FACS (Firmware ACPI Control Structure) */
 struct acpi_facs {
-	char signature[4];		/* "FACS" */
+	char signature[ACPI_NAME_LEN];	/* "FACS" */
 	u32 length;			/* Length in bytes (>= 64) */
 	u32 hardware_signature;		/* Hardware signature */
 	u32 firmware_waking_vector;	/* Firmware waking vector */