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| author | Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com> | 2022-11-07 12:32:51 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-11-10 01:41:42 +0300 |
| commit | e50db38342d5d2243e9738a51c9737cbb017e456 (patch) | |
| tree | a85788c15c1ab0093acf2ce7d7d67c40fc0445de /drivers/gpu/drm/amd/display/dc/bios | |
| parent | 10276a20be1115e1f76c189330da2992df980eee (diff) | |
| download | linux-e50db38342d5d2243e9738a51c9737cbb017e456.tar.xz | |
drm/amdgpu: Replace 1-element array with flexible-array member
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_GPIO_PIN_ASSIGNMENT,
_ATOM_DISPLAY_OBJECT_PATH, _ATOM_DISPLAY_OBJECT_PATH_TABLE,
_ATOM_OBJECT_TABLE 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>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/bios')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | 23 |
1 files changed, 15 insertions, 8 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 9b8ea6e9a2b9..39dd8b2dc254 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c @@ -138,7 +138,9 @@ static uint8_t get_number_of_objects(struct bios_parser *bp, uint32_t offset) uint32_t object_table_offset = bp->object_info_tbl_offset + offset; - table = GET_IMAGE(ATOM_OBJECT_TABLE, object_table_offset); + table = ((ATOM_OBJECT_TABLE *) bios_get_image(&bp->base, + object_table_offset, + struct_size(table, asObjects, 1))); if (!table) return 0; @@ -166,8 +168,9 @@ static struct graphics_object_id bios_parser_get_connector_id( uint32_t connector_table_offset = bp->object_info_tbl_offset + le16_to_cpu(bp->object_info_tbl.v1_1->usConnectorObjectTableOffset); - ATOM_OBJECT_TABLE *tbl = - GET_IMAGE(ATOM_OBJECT_TABLE, connector_table_offset); + ATOM_OBJECT_TABLE *tbl = ((ATOM_OBJECT_TABLE *) bios_get_image(&bp->base, + connector_table_offset, + struct_size(tbl, asObjects, 1))); if (!tbl) { dm_error("Can't get connector table from atom bios.\n"); @@ -1789,11 +1792,13 @@ static enum bp_result bios_parser_get_gpio_pin_info( if (!DATA_TABLES(GPIO_Pin_LUT)) return BP_RESULT_BADBIOSTABLE; - header = GET_IMAGE(ATOM_GPIO_PIN_LUT, DATA_TABLES(GPIO_Pin_LUT)); + header = ((ATOM_GPIO_PIN_LUT *) bios_get_image(&bp->base, + DATA_TABLES(GPIO_Pin_LUT), + struct_size(header, asGPIO_Pin, 1))); if (!header) return BP_RESULT_BADBIOSTABLE; - if (sizeof(ATOM_COMMON_TABLE_HEADER) + sizeof(ATOM_GPIO_PIN_LUT) + if (sizeof(ATOM_COMMON_TABLE_HEADER) + struct_size(header, asGPIO_Pin, 1) > le16_to_cpu(header->sHeader.usStructureSize)) return BP_RESULT_BADBIOSTABLE; @@ -1978,7 +1983,8 @@ static ATOM_OBJECT *get_bios_object(struct bios_parser *bp, offset += bp->object_info_tbl_offset; - tbl = GET_IMAGE(ATOM_OBJECT_TABLE, offset); + tbl = ((ATOM_OBJECT_TABLE *) bios_get_image(&bp->base, offset, + struct_size(tbl, asObjects, 1))); if (!tbl) return NULL; @@ -2709,8 +2715,9 @@ static enum bp_result get_bracket_layout_record( genericTableOffset = bp->object_info_tbl_offset + bp->object_info_tbl.v1_3->usMiscObjectTableOffset; - object_table = (ATOM_OBJECT_TABLE *) - GET_IMAGE(ATOM_OBJECT_TABLE, genericTableOffset); + object_table = ((ATOM_OBJECT_TABLE *) bios_get_image(&bp->base, + genericTableOffset, + struct_size(object_table, asObjects, 1))); if (!object_table) return BP_RESULT_FAILURE; |