[PATCH 1/2] drm/amd: Fix UBSAN array-index-out-of-bounds for SMU7

[Mario Limonciello]

For pptable structs that use flexible array sizes, use flexible arrays.

Suggested-by: Felix Held <felix.h...@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2874
Signed-off-by: Mario Limonciello <mario.limoncie...@amd.com>
---
 drivers/gpu/drm/amd/include/pptable.h                 | 4 ++--
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/include/pptable.h 
b/drivers/gpu/drm/amd/include/pptable.h
index 0b6a057e0a4c..5aac8d545bdc 100644
--- a/drivers/gpu/drm/amd/include/pptable.h
+++ b/drivers/gpu/drm/amd/include/pptable.h
@@ -78,7 +78,7 @@ typedef struct _ATOM_PPLIB_THERMALCONTROLLER
 typedef struct _ATOM_PPLIB_STATE
 {
     UCHAR ucNonClockStateIndex;
-    UCHAR ucClockStateIndices[1]; // variable-sized
+    UCHAR ucClockStateIndices[]; // variable-sized
 } ATOM_PPLIB_STATE;
 
 
@@ -473,7 +473,7 @@ typedef struct _ATOM_PPLIB_STATE_V2
       /**
       * Driver will read the first ucNumDPMLevels in this array
       */
-      UCHAR clockInfoIndex[1];
+      UCHAR clockInfoIndex[];
 } ATOM_PPLIB_STATE_V2;
 
 typedef struct _StateArray{
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h 
b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h
index 7a31cfa5e7fb..57bca1e81d3a 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pptable_v1_0.h
@@ -179,7 +179,7 @@ typedef struct _ATOM_Tonga_MCLK_Dependency_Record {
 typedef struct _ATOM_Tonga_MCLK_Dependency_Table {
        UCHAR ucRevId;
        UCHAR ucNumEntries;                                                     
                        /* Number of entries. */
-       ATOM_Tonga_MCLK_Dependency_Record entries[1];                           
/* Dynamically allocate entries. */
+       ATOM_Tonga_MCLK_Dependency_Record entries[];                            
/* Dynamically allocate entries. */
 } ATOM_Tonga_MCLK_Dependency_Table;
 
 typedef struct _ATOM_Tonga_SCLK_Dependency_Record {
@@ -194,7 +194,7 @@ typedef struct _ATOM_Tonga_SCLK_Dependency_Record {
 typedef struct _ATOM_Tonga_SCLK_Dependency_Table {
        UCHAR ucRevId;
        UCHAR ucNumEntries;                                                     
                        /* Number of entries. */
-       ATOM_Tonga_SCLK_Dependency_Record entries[1];                           
 /* Dynamically allocate entries. */
+       ATOM_Tonga_SCLK_Dependency_Record entries[];                            
 /* Dynamically allocate entries. */
 } ATOM_Tonga_SCLK_Dependency_Table;
 
 typedef struct _ATOM_Polaris_SCLK_Dependency_Record {
-- 
2.34.1