[S] Change in coreboot[master]: include/acpi: Use C99 flexible arrays

[Jakub Czapiga (Code Review)]

Jakub Czapiga has submitted this change. ( https://review.coreboot.org/c/coreboot/+/76813?usp=email )

Change subject: include/acpi: Use C99 flexible arrays
......................................................................

include/acpi: Use C99 flexible arrays

Use C99 flexible arrays instead of older style of one-element or
zero-length arrays.
It allows the compiler to generate errors when the flexible array does
not occur at the end in the structure.

Change-Id: I3d5838b825c6ac2a2959388381004993024081c3
Signed-off-by: Elyes Haouas 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76813
Reviewed-by: Felix Singer 
Tested-by: build bot (Jenkins) 
---
M src/include/acpi/acpi.h
M src/include/acpi/acpi_ivrs.h
2 files changed, 6 insertions(+), 6 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Felix Singer: Looks good to me, approved

diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index f1c52d1..0aa8026 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -506,7 +506,7 @@
    uint16_t pci_segment_group;
    uint16_t iommu_info;
    uint32_t iommu_feature_info;
-	uint8_t entry[0];
+	uint8_t entry[];
 } __packed acpi_ivrs_ivhd_t;

/* IVRS (I/O Virtualization Reporting Structure) Type 10h */
@@ -549,7 +549,7 @@
    uint32_t efr_reg_image_low;
    uint32_t efr_reg_image_high;
    uint32_t reserved[2];
-	uint8_t entry[0];
+	uint8_t entry[];
 } __packed acpi_ivrs_ivhd11_t;

enum dev_scope_type {
@@ -569,7 +569,7 @@
    struct {
    	u8 dev;
    	u8 fn;
-	} __packed path[0];
+	} __packed path[];
 } __packed dev_scope_t;

enum dmar_type {
@@ -651,7 +651,7 @@
    u8 host_address_width;
    u8 flags;
    u8 reserved[10];
-	dmar_entry_t structure[0];
+	dmar_entry_t structure[];
 } __packed acpi_dmar_t;

/* MADT: APIC Structure Types */
@@ -1246,7 +1246,7 @@
    u32 revision;
    u32 table_size;
    u32 entry_count;
-	acpi_einj_action_table_t trigger_action[1];
+	acpi_einj_action_table_t trigger_action[];
 } __packed acpi_einj_trigger_table_t;

typedef struct set_error_type {
diff --git a/src/include/acpi/acpi_ivrs.h b/src/include/acpi/acpi_ivrs.h
index fe0aa40..ad86e6a 100644
--- a/src/include/acpi/acpi_ivrs.h
+++ b/src/include/acpi/acpi_ivrs.h
@@ -201,7 +201,7 @@
    uint32_t efr_reg_image_low;
    uint32_t efr_reg_image_high;
    uint32_t reserved[2];
-	uint8_t entry[0];
+	uint8_t entry[];
 } __packed acpi_ivrs_ivhd40_t;

typedef struct ivrs_ivhd_extended {