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drm/radeon: Replace 1-element arrays with flexible-array members

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One-element arrays are deprecated, and we are replacing them with
flexible array members instead. So, replace one-element array with
flexible-array member in structs _ATOM_DISPLAY_OBJECT_PATH,
_ATOM_DISPLAY_OBJECT_PATH_TABLE, _ATOM_OBJECT_TABLE, GOP_VBIOS_CONTENT
_ATOM_GPIO_VOLTAGE_OBJECT_V3 and refactor the rest of the code accordingly.

It's worth mentioning that doing a build before/after this patch
results in no binary output differences.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [1].

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/239
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836 [1]

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Paulo Miguel Almeida 2022-12-09 21:24:09 +13:00 committed by Alex Deucher
parent 2dd9032beb
commit 09ccde9191
1 changed files with 5 additions and 5 deletions
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10
drivers/gpu/drm/radeon/atombios.h
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@ -4020,7 +4020,7 @@ typedef struct _ATOM_DISPLAY_OBJECT_PATH
USHORT usSize; //the size of ATOM_DISPLAY_OBJECT_PATH
USHORT usConnObjectId; //Connector Object ID
USHORT usGPUObjectId; //GPU ID
USHORT usGraphicObjIds[1]; //1st Encoder Obj source from GPU to last Graphic Obj destinate to connector.
USHORT usGraphicObjIds[]; //1st Encoder Obj source from GPU to last Graphic Obj destinate to connector.
}ATOM_DISPLAY_OBJECT_PATH;
typedef struct _ATOM_DISPLAY_EXTERNAL_OBJECT_PATH
@ -4037,7 +4037,7 @@ typedef struct _ATOM_DISPLAY_OBJECT_PATH_TABLE
UCHAR ucNumOfDispPath;
UCHAR ucVersion;
UCHAR ucPadding[2];
ATOM_DISPLAY_OBJECT_PATH asDispPath[1];
ATOM_DISPLAY_OBJECT_PATH asDispPath[];
}ATOM_DISPLAY_OBJECT_PATH_TABLE;
@ -4053,7 +4053,7 @@ typedef struct _ATOM_OBJECT_TABLE //Above 4 object table
{
UCHAR ucNumberOfObjects;
UCHAR ucPadding[3];
ATOM_OBJECT asObjects[1];
ATOM_OBJECT asObjects[];
}ATOM_OBJECT_TABLE;
typedef struct _ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT //usSrcDstTableOffset pointing to this structure
@ -4615,7 +4615,7 @@ typedef struct _ATOM_GPIO_VOLTAGE_OBJECT_V3
UCHAR ucPhaseDelay; // phase delay in unit of micro second
UCHAR ucReserved;
ULONG ulGpioMaskVal; // GPIO Mask value
VOLTAGE_LUT_ENTRY_V2 asVolGpioLut[1];
VOLTAGE_LUT_ENTRY_V2 asVolGpioLut[];
}ATOM_GPIO_VOLTAGE_OBJECT_V3;
typedef struct _ATOM_LEAKAGE_VOLTAGE_OBJECT_V3
@ -7964,7 +7964,7 @@ typedef struct {
typedef struct {
VFCT_IMAGE_HEADER VbiosHeader;
UCHAR VbiosContent[1];
UCHAR VbiosContent[];
}GOP_VBIOS_CONTENT;
typedef struct {