[PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Arnd Bergmann]

Older compilers warn about initializers with incorrect curly
braces:

drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
  struct drm_dp_desc desc = { 0 };
         ^

Change all instances in the amd gpu driver to using the GNU empty
initializer extension.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
v2: some context changes linux-next stopped yesterday's patch from
applying today.
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         | 2 +-
 drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c        | 2 +-
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 2 +-
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c          | 6 +++---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c         | 6 +++---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c     | 2 +-
 drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c         | 6 +++---
 7 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 7f4417981bff..81ce3103d751 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8695,7 +8695,7 @@ bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
 {
 	struct dc_link *link = stream->link;
 	unsigned int vsync_rate_hz = 0;
-	struct dc_static_screen_params params = {0};
+	struct dc_static_screen_params params = { };
 	/* Calculate number of static frames before generating interrupt to
 	 * enter PSR.
 	 */
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index 37fa7b48250e..5484a316eaa8 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -294,7 +294,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
 	struct atom_display_object_path_v2 *object;
 	struct atom_common_record_header *header;
 	struct atom_i2c_record *record;
-	struct atom_i2c_record dummy_record = {0};
+	struct atom_i2c_record dummy_record = { };
 	struct bios_parser *bp = BP_FROM_DCB(dcb);
 
 	if (!info)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index 24c5765890fa..ee3ef5094fd1 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -698,7 +698,7 @@ void rn_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct dc_debug_options *debug = &ctx->dc->debug;
-	struct dpm_clocks clock_table = { 0 };
+	struct dpm_clocks clock_table = { };
 
 	clk_mgr->base.ctx = ctx;
 	clk_mgr->base.funcs = &dcn21_funcs;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 9ef9e50a34fa..7cbfe740a947 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2683,9 +2683,9 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
 
 static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
 {
-	union audio_test_mode            dpcd_test_mode = {0};
-	struct audio_test_pattern_type   dpcd_pattern_type = {0};
-	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
+	union audio_test_mode            dpcd_test_mode = { };
+	struct audio_test_pattern_type   dpcd_pattern_type = { };
+	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = { };
 	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
 
 	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
index 84d7ac5dd206..dfa541f0b0d3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
@@ -1253,9 +1253,9 @@ void hubp2_validate_dml_output(struct hubp *hubp,
 		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
 {
 	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
-	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
-	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
-	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
+	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
+	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
+	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
 	DC_LOGGER_INIT(ctx->logger);
 	DC_LOG_DEBUG("DML Validation | Running Validation");
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 60ea499c1ca8..beea5e129c24 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -449,7 +449,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv14_soc = {
 	.use_urgent_burst_bw = 0
 };
 
-struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { 0 };
+struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { };
 
 #ifndef mmDP0_DP_DPHY_INTERNAL_CTRL
 	#define mmDP0_DP_DPHY_INTERNAL_CTRL		0x210f
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
index 960a0716dde5..4aae6fb333bb 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
@@ -365,9 +365,9 @@ void hubp21_validate_dml_output(struct hubp *hubp,
 		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
 {
 	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
-	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
-	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
-	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
+	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
+	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
+	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
 	DC_LOGGER_INIT(ctx->logger);
 	DC_LOG_DEBUG("DML Validation | Running Validation");
 
-- 
2.26.0

[PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Arnd Bergmann]

Older compilers warn about initializers with incorrect curly
braces:

drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
  struct drm_dp_desc desc = { 0 };
         ^

Change all instances in the amd gpu driver to using the GNU empty
initializer extension.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
v2: some context changes linux-next stopped yesterday's patch from
applying today.
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         | 2 +-
 drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c        | 2 +-
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 2 +-
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c          | 6 +++---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c         | 6 +++---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c     | 2 +-
 drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c         | 6 +++---
 7 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 7f4417981bff..81ce3103d751 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8695,7 +8695,7 @@ bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
 {
 	struct dc_link *link = stream->link;
 	unsigned int vsync_rate_hz = 0;
-	struct dc_static_screen_params params = {0};
+	struct dc_static_screen_params params = { };
 	/* Calculate number of static frames before generating interrupt to
 	 * enter PSR.
 	 */
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index 37fa7b48250e..5484a316eaa8 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -294,7 +294,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
 	struct atom_display_object_path_v2 *object;
 	struct atom_common_record_header *header;
 	struct atom_i2c_record *record;
-	struct atom_i2c_record dummy_record = {0};
+	struct atom_i2c_record dummy_record = { };
 	struct bios_parser *bp = BP_FROM_DCB(dcb);
 
 	if (!info)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index 24c5765890fa..ee3ef5094fd1 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -698,7 +698,7 @@ void rn_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct dc_debug_options *debug = &ctx->dc->debug;
-	struct dpm_clocks clock_table = { 0 };
+	struct dpm_clocks clock_table = { };
 
 	clk_mgr->base.ctx = ctx;
 	clk_mgr->base.funcs = &dcn21_funcs;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 9ef9e50a34fa..7cbfe740a947 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2683,9 +2683,9 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
 
 static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
 {
-	union audio_test_mode            dpcd_test_mode = {0};
-	struct audio_test_pattern_type   dpcd_pattern_type = {0};
-	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
+	union audio_test_mode            dpcd_test_mode = { };
+	struct audio_test_pattern_type   dpcd_pattern_type = { };
+	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = { };
 	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
 
 	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
index 84d7ac5dd206..dfa541f0b0d3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
@@ -1253,9 +1253,9 @@ void hubp2_validate_dml_output(struct hubp *hubp,
 		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
 {
 	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
-	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
-	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
-	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
+	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
+	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
+	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
 	DC_LOGGER_INIT(ctx->logger);
 	DC_LOG_DEBUG("DML Validation | Running Validation");
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 60ea499c1ca8..beea5e129c24 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -449,7 +449,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv14_soc = {
 	.use_urgent_burst_bw = 0
 };
 
-struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { 0 };
+struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { };
 
 #ifndef mmDP0_DP_DPHY_INTERNAL_CTRL
 	#define mmDP0_DP_DPHY_INTERNAL_CTRL		0x210f
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
index 960a0716dde5..4aae6fb333bb 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
@@ -365,9 +365,9 @@ void hubp21_validate_dml_output(struct hubp *hubp,
 		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
 {
 	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
-	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
-	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
-	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
+	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
+	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
+	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
 	DC_LOGGER_INIT(ctx->logger);
 	DC_LOG_DEBUG("DML Validation | Running Validation");
 
-- 
2.26.0

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dri-devel@lists.freedesktop.org
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[PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Arnd Bergmann]

Older compilers warn about initializers with incorrect curly
braces:

drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
  struct drm_dp_desc desc = { 0 };
         ^

Change all instances in the amd gpu driver to using the GNU empty
initializer extension.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
v2: some context changes linux-next stopped yesterday's patch from
applying today.
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         | 2 +-
 drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c        | 2 +-
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 2 +-
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c          | 6 +++---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c         | 6 +++---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c     | 2 +-
 drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c         | 6 +++---
 7 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 7f4417981bff..81ce3103d751 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8695,7 +8695,7 @@ bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
 {
 	struct dc_link *link = stream->link;
 	unsigned int vsync_rate_hz = 0;
-	struct dc_static_screen_params params = {0};
+	struct dc_static_screen_params params = { };
 	/* Calculate number of static frames before generating interrupt to
 	 * enter PSR.
 	 */
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index 37fa7b48250e..5484a316eaa8 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -294,7 +294,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
 	struct atom_display_object_path_v2 *object;
 	struct atom_common_record_header *header;
 	struct atom_i2c_record *record;
-	struct atom_i2c_record dummy_record = {0};
+	struct atom_i2c_record dummy_record = { };
 	struct bios_parser *bp = BP_FROM_DCB(dcb);
 
 	if (!info)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index 24c5765890fa..ee3ef5094fd1 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -698,7 +698,7 @@ void rn_clk_mgr_construct(
 		struct dccg *dccg)
 {
 	struct dc_debug_options *debug = &ctx->dc->debug;
-	struct dpm_clocks clock_table = { 0 };
+	struct dpm_clocks clock_table = { };
 
 	clk_mgr->base.ctx = ctx;
 	clk_mgr->base.funcs = &dcn21_funcs;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 9ef9e50a34fa..7cbfe740a947 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2683,9 +2683,9 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
 
 static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
 {
-	union audio_test_mode            dpcd_test_mode = {0};
-	struct audio_test_pattern_type   dpcd_pattern_type = {0};
-	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
+	union audio_test_mode            dpcd_test_mode = { };
+	struct audio_test_pattern_type   dpcd_pattern_type = { };
+	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = { };
 	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
 
 	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
index 84d7ac5dd206..dfa541f0b0d3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
@@ -1253,9 +1253,9 @@ void hubp2_validate_dml_output(struct hubp *hubp,
 		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
 {
 	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
-	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
-	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
-	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
+	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
+	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
+	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
 	DC_LOGGER_INIT(ctx->logger);
 	DC_LOG_DEBUG("DML Validation | Running Validation");
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 60ea499c1ca8..beea5e129c24 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -449,7 +449,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv14_soc = {
 	.use_urgent_burst_bw = 0
 };
 
-struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { 0 };
+struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { };
 
 #ifndef mmDP0_DP_DPHY_INTERNAL_CTRL
 	#define mmDP0_DP_DPHY_INTERNAL_CTRL		0x210f
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
index 960a0716dde5..4aae6fb333bb 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
@@ -365,9 +365,9 @@ void hubp21_validate_dml_output(struct hubp *hubp,
 		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
 {
 	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
-	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
-	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
-	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
+	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
+	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
+	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
 	DC_LOGGER_INIT(ctx->logger);
 	DC_LOG_DEBUG("DML Validation | Running Validation");
 
-- 
2.26.0

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Re: [PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Kazlauskas, Nicholas]

On 2020-04-29 5:20 a.m., Arnd Bergmann wrote:
> Older compilers warn about initializers with incorrect curly
> braces:
> 
> drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
> drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
>    struct drm_dp_desc desc = { 0 };
>           ^
> 
> Change all instances in the amd gpu driver to using the GNU empty
> initializer extension.

These should actually be memset - instead of GCC complaining, it'll be 
clang instead.

Regards,
Nicholas Kazlauskas

> 
> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> v2: some context changes linux-next stopped yesterday's patch from
> applying today.
> ---
>   drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         | 2 +-
>   drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c        | 2 +-
>   drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 2 +-
>   drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c          | 6 +++---
>   drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c         | 6 +++---
>   drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c     | 2 +-
>   drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c         | 6 +++---
>   7 files changed, 13 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 7f4417981bff..81ce3103d751 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -8695,7 +8695,7 @@ bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
>   {
>   	struct dc_link *link = stream->link;
>   	unsigned int vsync_rate_hz = 0;
> -	struct dc_static_screen_params params = {0};
> +	struct dc_static_screen_params params = { };
>   	/* Calculate number of static frames before generating interrupt to
>   	 * enter PSR.
>   	 */
> diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> index 37fa7b48250e..5484a316eaa8 100644
> --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> @@ -294,7 +294,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
>   	struct atom_display_object_path_v2 *object;
>   	struct atom_common_record_header *header;
>   	struct atom_i2c_record *record;
> -	struct atom_i2c_record dummy_record = {0};
> +	struct atom_i2c_record dummy_record = { };
>   	struct bios_parser *bp = BP_FROM_DCB(dcb);
>   
>   	if (!info)
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> index 24c5765890fa..ee3ef5094fd1 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> @@ -698,7 +698,7 @@ void rn_clk_mgr_construct(
>   		struct dccg *dccg)
>   {
>   	struct dc_debug_options *debug = &ctx->dc->debug;
> -	struct dpm_clocks clock_table = { 0 };
> +	struct dpm_clocks clock_table = { };
>   
>   	clk_mgr->base.ctx = ctx;
>   	clk_mgr->base.funcs = &dcn21_funcs;
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> index 9ef9e50a34fa..7cbfe740a947 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> @@ -2683,9 +2683,9 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
>   
>   static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
>   {
> -	union audio_test_mode            dpcd_test_mode = {0};
> -	struct audio_test_pattern_type   dpcd_pattern_type = {0};
> -	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
> +	union audio_test_mode            dpcd_test_mode = { };
> +	struct audio_test_pattern_type   dpcd_pattern_type = { };
> +	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = { };
>   	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
>   
>   	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> index 84d7ac5dd206..dfa541f0b0d3 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> @@ -1253,9 +1253,9 @@ void hubp2_validate_dml_output(struct hubp *hubp,
>   		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
>   {
>   	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
> -	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
> -	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
> -	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
> +	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
> +	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
> +	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
>   	DC_LOGGER_INIT(ctx->logger);
>   	DC_LOG_DEBUG("DML Validation | Running Validation");
>   
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index 60ea499c1ca8..beea5e129c24 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -449,7 +449,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv14_soc = {
>   	.use_urgent_burst_bw = 0
>   };
>   
> -struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { 0 };
> +struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { };
>   
>   #ifndef mmDP0_DP_DPHY_INTERNAL_CTRL
>   	#define mmDP0_DP_DPHY_INTERNAL_CTRL		0x210f
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> index 960a0716dde5..4aae6fb333bb 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> @@ -365,9 +365,9 @@ void hubp21_validate_dml_output(struct hubp *hubp,
>   		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
>   {
>   	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
> -	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
> -	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
> -	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
> +	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
> +	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
> +	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
>   	DC_LOGGER_INIT(ctx->logger);
>   	DC_LOG_DEBUG("DML Validation | Running Validation");
>   
> 

Re: [PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Kazlauskas, Nicholas]

On 2020-04-29 5:20 a.m., Arnd Bergmann wrote:
> Older compilers warn about initializers with incorrect curly
> braces:
> 
> drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
> drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
>    struct drm_dp_desc desc = { 0 };
>           ^
> 
> Change all instances in the amd gpu driver to using the GNU empty
> initializer extension.

These should actually be memset - instead of GCC complaining, it'll be 
clang instead.

Regards,
Nicholas Kazlauskas

> 
> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> v2: some context changes linux-next stopped yesterday's patch from
> applying today.
> ---
>   drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         | 2 +-
>   drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c        | 2 +-
>   drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 2 +-
>   drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c          | 6 +++---
>   drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c         | 6 +++---
>   drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c     | 2 +-
>   drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c         | 6 +++---
>   7 files changed, 13 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 7f4417981bff..81ce3103d751 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -8695,7 +8695,7 @@ bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
>   {
>   	struct dc_link *link = stream->link;
>   	unsigned int vsync_rate_hz = 0;
> -	struct dc_static_screen_params params = {0};
> +	struct dc_static_screen_params params = { };
>   	/* Calculate number of static frames before generating interrupt to
>   	 * enter PSR.
>   	 */
> diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> index 37fa7b48250e..5484a316eaa8 100644
> --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> @@ -294,7 +294,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
>   	struct atom_display_object_path_v2 *object;
>   	struct atom_common_record_header *header;
>   	struct atom_i2c_record *record;
> -	struct atom_i2c_record dummy_record = {0};
> +	struct atom_i2c_record dummy_record = { };
>   	struct bios_parser *bp = BP_FROM_DCB(dcb);
>   
>   	if (!info)
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> index 24c5765890fa..ee3ef5094fd1 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> @@ -698,7 +698,7 @@ void rn_clk_mgr_construct(
>   		struct dccg *dccg)
>   {
>   	struct dc_debug_options *debug = &ctx->dc->debug;
> -	struct dpm_clocks clock_table = { 0 };
> +	struct dpm_clocks clock_table = { };
>   
>   	clk_mgr->base.ctx = ctx;
>   	clk_mgr->base.funcs = &dcn21_funcs;
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> index 9ef9e50a34fa..7cbfe740a947 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> @@ -2683,9 +2683,9 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
>   
>   static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
>   {
> -	union audio_test_mode            dpcd_test_mode = {0};
> -	struct audio_test_pattern_type   dpcd_pattern_type = {0};
> -	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
> +	union audio_test_mode            dpcd_test_mode = { };
> +	struct audio_test_pattern_type   dpcd_pattern_type = { };
> +	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = { };
>   	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
>   
>   	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> index 84d7ac5dd206..dfa541f0b0d3 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> @@ -1253,9 +1253,9 @@ void hubp2_validate_dml_output(struct hubp *hubp,
>   		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
>   {
>   	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
> -	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
> -	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
> -	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
> +	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
> +	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
> +	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
>   	DC_LOGGER_INIT(ctx->logger);
>   	DC_LOG_DEBUG("DML Validation | Running Validation");
>   
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index 60ea499c1ca8..beea5e129c24 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -449,7 +449,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv14_soc = {
>   	.use_urgent_burst_bw = 0
>   };
>   
> -struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { 0 };
> +struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { };
>   
>   #ifndef mmDP0_DP_DPHY_INTERNAL_CTRL
>   	#define mmDP0_DP_DPHY_INTERNAL_CTRL		0x210f
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> index 960a0716dde5..4aae6fb333bb 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> @@ -365,9 +365,9 @@ void hubp21_validate_dml_output(struct hubp *hubp,
>   		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
>   {
>   	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
> -	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
> -	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
> -	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
> +	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
> +	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
> +	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
>   	DC_LOGGER_INIT(ctx->logger);
>   	DC_LOG_DEBUG("DML Validation | Running Validation");
>   
> 

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Re: [PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Kazlauskas, Nicholas]

On 2020-04-29 5:20 a.m., Arnd Bergmann wrote:
> Older compilers warn about initializers with incorrect curly
> braces:
> 
> drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
> drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
>    struct drm_dp_desc desc = { 0 };
>           ^
> 
> Change all instances in the amd gpu driver to using the GNU empty
> initializer extension.

These should actually be memset - instead of GCC complaining, it'll be 
clang instead.

Regards,
Nicholas Kazlauskas

> 
> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> v2: some context changes linux-next stopped yesterday's patch from
> applying today.
> ---
>   drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         | 2 +-
>   drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c        | 2 +-
>   drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 2 +-
>   drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c          | 6 +++---
>   drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c         | 6 +++---
>   drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c     | 2 +-
>   drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c         | 6 +++---
>   7 files changed, 13 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 7f4417981bff..81ce3103d751 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -8695,7 +8695,7 @@ bool amdgpu_dm_psr_enable(struct dc_stream_state *stream)
>   {
>   	struct dc_link *link = stream->link;
>   	unsigned int vsync_rate_hz = 0;
> -	struct dc_static_screen_params params = {0};
> +	struct dc_static_screen_params params = { };
>   	/* Calculate number of static frames before generating interrupt to
>   	 * enter PSR.
>   	 */
> diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> index 37fa7b48250e..5484a316eaa8 100644
> --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
> @@ -294,7 +294,7 @@ static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
>   	struct atom_display_object_path_v2 *object;
>   	struct atom_common_record_header *header;
>   	struct atom_i2c_record *record;
> -	struct atom_i2c_record dummy_record = {0};
> +	struct atom_i2c_record dummy_record = { };
>   	struct bios_parser *bp = BP_FROM_DCB(dcb);
>   
>   	if (!info)
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> index 24c5765890fa..ee3ef5094fd1 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
> @@ -698,7 +698,7 @@ void rn_clk_mgr_construct(
>   		struct dccg *dccg)
>   {
>   	struct dc_debug_options *debug = &ctx->dc->debug;
> -	struct dpm_clocks clock_table = { 0 };
> +	struct dpm_clocks clock_table = { };
>   
>   	clk_mgr->base.ctx = ctx;
>   	clk_mgr->base.funcs = &dcn21_funcs;
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> index 9ef9e50a34fa..7cbfe740a947 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
> @@ -2683,9 +2683,9 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
>   
>   static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video)
>   {
> -	union audio_test_mode            dpcd_test_mode = {0};
> -	struct audio_test_pattern_type   dpcd_pattern_type = {0};
> -	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
> +	union audio_test_mode            dpcd_test_mode = { };
> +	struct audio_test_pattern_type   dpcd_pattern_type = { };
> +	union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = { };
>   	enum dp_test_pattern test_pattern = DP_TEST_PATTERN_AUDIO_OPERATOR_DEFINED;
>   
>   	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> index 84d7ac5dd206..dfa541f0b0d3 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
> @@ -1253,9 +1253,9 @@ void hubp2_validate_dml_output(struct hubp *hubp,
>   		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
>   {
>   	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
> -	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
> -	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
> -	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
> +	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
> +	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
> +	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
>   	DC_LOGGER_INIT(ctx->logger);
>   	DC_LOG_DEBUG("DML Validation | Running Validation");
>   
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index 60ea499c1ca8..beea5e129c24 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -449,7 +449,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv14_soc = {
>   	.use_urgent_burst_bw = 0
>   };
>   
> -struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { 0 };
> +struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv12_soc = { };
>   
>   #ifndef mmDP0_DP_DPHY_INTERNAL_CTRL
>   	#define mmDP0_DP_DPHY_INTERNAL_CTRL		0x210f
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> index 960a0716dde5..4aae6fb333bb 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c
> @@ -365,9 +365,9 @@ void hubp21_validate_dml_output(struct hubp *hubp,
>   		struct _vcs_dpi_display_ttu_regs_st *dml_ttu_attr)
>   {
>   	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
> -	struct _vcs_dpi_display_rq_regs_st rq_regs = {0};
> -	struct _vcs_dpi_display_dlg_regs_st dlg_attr = {0};
> -	struct _vcs_dpi_display_ttu_regs_st ttu_attr = {0};
> +	struct _vcs_dpi_display_rq_regs_st rq_regs = { };
> +	struct _vcs_dpi_display_dlg_regs_st dlg_attr = { };
> +	struct _vcs_dpi_display_ttu_regs_st ttu_attr = { };
>   	DC_LOGGER_INIT(ctx->logger);
>   	DC_LOG_DEBUG("DML Validation | Running Validation");
>   
> 

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Re: [PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Arnd Bergmann]

On Wed, Apr 29, 2020 at 3:42 PM Kazlauskas, Nicholas
<nicholas.kazlauskas@amd.com> wrote:
>
> On 2020-04-29 5:20 a.m., Arnd Bergmann wrote:
> > Older compilers warn about initializers with incorrect curly
> > braces:
> >
> > drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
> > drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
> >    struct drm_dp_desc desc = { 0 };
> >           ^
> >
> > Change all instances in the amd gpu driver to using the GNU empty
> > initializer extension.
>
> These should actually be memset - instead of GCC complaining, it'll be
> clang instead.

I'm not sure what you mean, clang certainly supports most GNU extensions,
and this one is used all over the kernel.

There is a good reason for using memset instead of ={}, e.g. when you want
to be sure that all padding fields get initialized before copying
stack variables
to user space, but I find it a little harder to read.

       Arnd

Re: [PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Arnd Bergmann]

On Wed, Apr 29, 2020 at 3:42 PM Kazlauskas, Nicholas
<nicholas.kazlauskas@amd.com> wrote:
>
> On 2020-04-29 5:20 a.m., Arnd Bergmann wrote:
> > Older compilers warn about initializers with incorrect curly
> > braces:
> >
> > drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
> > drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
> >    struct drm_dp_desc desc = { 0 };
> >           ^
> >
> > Change all instances in the amd gpu driver to using the GNU empty
> > initializer extension.
>
> These should actually be memset - instead of GCC complaining, it'll be
> clang instead.

I'm not sure what you mean, clang certainly supports most GNU extensions,
and this one is used all over the kernel.

There is a good reason for using memset instead of ={}, e.g. when you want
to be sure that all padding fields get initialized before copying
stack variables
to user space, but I find it a little harder to read.

       Arnd
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Re: [PATCH] [v2] amdgpu: fix gcc-4.8 build warnings

[Arnd Bergmann]

On Wed, Apr 29, 2020 at 3:42 PM Kazlauskas, Nicholas
<nicholas.kazlauskas@amd.com> wrote:
>
> On 2020-04-29 5:20 a.m., Arnd Bergmann wrote:
> > Older compilers warn about initializers with incorrect curly
> > braces:
> >
> > drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
> > drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: error: missing braces around initializer [-Werror=missing-braces]
> >    struct drm_dp_desc desc = { 0 };
> >           ^
> >
> > Change all instances in the amd gpu driver to using the GNU empty
> > initializer extension.
>
> These should actually be memset - instead of GCC complaining, it'll be
> clang instead.

I'm not sure what you mean, clang certainly supports most GNU extensions,
and this one is used all over the kernel.

There is a good reason for using memset instead of ={}, e.g. when you want
to be sure that all padding fields get initialized before copying
stack variables
to user space, but I find it a little harder to read.

       Arnd
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