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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/Makefile')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dml/Makefile9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
index 1bd6e307b7f8..ef1bdd20b425 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
@@ -27,6 +27,15 @@
dml_ccflags := -mhard-float -msse
ifdef CONFIG_CC_IS_GCC
+ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+IS_OLD_GCC = 1
+endif
+endif
+
+ifdef IS_OLD_GCC
+# Stack alignment mismatch, proceed with caution.
+# GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
+# (8B stack alignment).
dml_ccflags += -mpreferred-stack-boundary=4
endif