1 files changed, 49 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1185-drm-amd-display-Use-memset-to-initialize-variable-in.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1185-drm-amd-display-Use-memset-to-initialize-variable-in.patch
new file mode 100644
index 00000000..380b7844
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1185-drm-amd-display-Use-memset-to-initialize-variable-in.patch
@@ -0,0 +1,49 @@
+From 9a2a8f1c132f58998aab206a92b4fdfdfdfabc87 Mon Sep 17 00:00:00 2001
+From: Nathan Chancellor <natechancellor@gmail.com>
+Date: Fri, 1 Feb 2019 13:15:41 -0700
+Subject: [PATCH 1185/2940] drm/amd/display: Use memset to initialize variable
+ in wait_for_training_aux_rd_interval
+
+Clang warns:
+
+drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c:50:57:
+warning: suggest braces around initialization of subobject
+[-Wmissing-braces]
+        union training_aux_rd_interval training_rd_interval = {0};
+                                                               ^
+                                                               {}
+1 warning generated.
+
+Previous efforts to fix this type of warning by adding or removing
+braces have been met with some pushback in favor of using memset [1][2].
+Do that here, mirroring commit 05794eff1aa6 ("drm/amdgpu/gmc: fix
+compiler errors [-Werror,-Wmissing-braces] (V2)") in this tree.
+
+[1]: https://lore.kernel.org/lkml/022e41c0-8465-dc7a-a45c-64187ecd9684@amd.com/
+[2]: https://lore.kernel.org/lkml/20181128.215241.702406654469517539.davem@davemloft.net/
+
+Fixes: 3cec41769d21 ("drm/amd/display: Fix use of uninitialized union")
+Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+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 92f565ca1260..5ee36d6e0512 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
+@@ -47,7 +47,9 @@ static void wait_for_training_aux_rd_interval(
+ 	struct dc_link *link,
+ 	uint32_t default_wait_in_micro_secs)
+ {
+-	union training_aux_rd_interval training_rd_interval = {0};
++	union training_aux_rd_interval training_rd_interval;
++
++	memset(&training_rd_interval, 0, sizeof(training_rd_interval));
+ 
+ 	/* overwrite the delay if rev > 1.1*/
+ 	if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_12) {
+-- 
+2.17.1
+