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| author | Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com> | 2022-11-13 10:44:05 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-11-15 21:35:16 +0300 |
| commit | bd3fe587f8989cd06209927abd71ee0af13cca4a (patch) | |
| tree | ca13dfb1b7fc74dafed421f131ff606dec65ade7 | |
| parent | 9635709a83aa6deda9e0eef164f1ffff5fe1d37a (diff) | |
| download | linux-bd3fe587f8989cd06209927abd71ee0af13cca4a.tar.xz | |
drm/amdgpu: Replace one-elements array with flex-array members
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_I2C_VOLTAGE_OBJECT_V3,
ATOM_ASIC_INTERNAL_SS_INFO_V2, ATOM_ASIC_INTERNAL_SS_INFO_V3,
and refactor the rest of the code accordingly.
Important to mention is that doing a build before/after this patch
results in no functional 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/238
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>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/include/atombios.h | 6 |
2 files changed, 17 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c index 6b9e64cd4379..a1a00f432168 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c @@ -665,8 +665,9 @@ static enum bp_result get_ss_info_v3_1( if (!DATA_TABLES(ASIC_InternalSS_Info)) return BP_RESULT_UNSUPPORTED; - ss_table_header_include = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V3, - DATA_TABLES(ASIC_InternalSS_Info)); + ss_table_header_include = ((ATOM_ASIC_INTERNAL_SS_INFO_V3 *) bios_get_image(&bp->base, + DATA_TABLES(ASIC_InternalSS_Info), + struct_size(ss_table_header_include, asSpreadSpectrum, 1))); table_size = (le16_to_cpu(ss_table_header_include->sHeader.usStructureSize) - sizeof(ATOM_COMMON_TABLE_HEADER)) @@ -1032,8 +1033,10 @@ static enum bp_result get_ss_info_from_internal_ss_info_tbl_V2_1( if (!DATA_TABLES(ASIC_InternalSS_Info)) return result; - header = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V2, - DATA_TABLES(ASIC_InternalSS_Info)); + header = ((ATOM_ASIC_INTERNAL_SS_INFO_V2 *) bios_get_image( + &bp->base, + DATA_TABLES(ASIC_InternalSS_Info), + struct_size(header, asSpreadSpectrum, 1))); memset(info, 0, sizeof(struct spread_spectrum_info)); @@ -1712,8 +1715,10 @@ static uint32_t get_ss_entry_number_from_internal_ss_info_tbl_v2_1( if (!DATA_TABLES(ASIC_InternalSS_Info)) return 0; - header_include = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V2, - DATA_TABLES(ASIC_InternalSS_Info)); + header_include = ((ATOM_ASIC_INTERNAL_SS_INFO_V2 *) bios_get_image( + &bp->base, + DATA_TABLES(ASIC_InternalSS_Info), + struct_size(header_include, asSpreadSpectrum, 1))); size = (le16_to_cpu(header_include->sHeader.usStructureSize) - sizeof(ATOM_COMMON_TABLE_HEADER)) @@ -1749,8 +1754,9 @@ static uint32_t get_ss_entry_number_from_internal_ss_info_tbl_V3_1( if (!DATA_TABLES(ASIC_InternalSS_Info)) return number; - header_include = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V3, - DATA_TABLES(ASIC_InternalSS_Info)); + header_include = ((ATOM_ASIC_INTERNAL_SS_INFO_V3 *) bios_get_image(&bp->base, + DATA_TABLES(ASIC_InternalSS_Info), + struct_size(header_include, asSpreadSpectrum, 1))); size = (le16_to_cpu(header_include->sHeader.usStructureSize) - sizeof(ATOM_COMMON_TABLE_HEADER)) / sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3); diff --git a/drivers/gpu/drm/amd/include/atombios.h b/drivers/gpu/drm/amd/include/atombios.h index 60c44a8a067f..4dc738c51771 100644 --- a/drivers/gpu/drm/amd/include/atombios.h +++ b/drivers/gpu/drm/amd/include/atombios.h @@ -5146,7 +5146,7 @@ typedef struct _ATOM_I2C_VOLTAGE_OBJECT_V3 UCHAR ucVoltageControlOffset; UCHAR ucVoltageControlFlag; // Bit0: 0 - One byte data; 1 - Two byte data UCHAR ulReserved[3]; - VOLTAGE_LUT_ENTRY asVolI2cLut[1]; // end with 0xff + VOLTAGE_LUT_ENTRY asVolI2cLut[]; // end with 0xff }ATOM_I2C_VOLTAGE_OBJECT_V3; // ATOM_I2C_VOLTAGE_OBJECT_V3.ucVoltageControlFlag @@ -6679,7 +6679,7 @@ typedef struct _ATOM_ASIC_INTERNAL_SS_INFO typedef struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 { ATOM_COMMON_TABLE_HEADER sHeader; - ATOM_ASIC_SS_ASSIGNMENT_V2 asSpreadSpectrum[1]; //this is point only. + ATOM_ASIC_SS_ASSIGNMENT_V2 asSpreadSpectrum[]; //this is point only. }ATOM_ASIC_INTERNAL_SS_INFO_V2; typedef struct _ATOM_ASIC_SS_ASSIGNMENT_V3 @@ -6701,7 +6701,7 @@ typedef struct _ATOM_ASIC_SS_ASSIGNMENT_V3 typedef struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 { ATOM_COMMON_TABLE_HEADER sHeader; - ATOM_ASIC_SS_ASSIGNMENT_V3 asSpreadSpectrum[1]; //this is pointer only. + ATOM_ASIC_SS_ASSIGNMENT_V3 asSpreadSpectrum[]; //this is pointer only. }ATOM_ASIC_INTERNAL_SS_INFO_V3; |