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From d73c5624eb62a1b88f18296d53ee6b9b2bf0e773 Mon Sep 17 00:00:00 2001
From: Harry Wentland <harry.wentland@amd.com>
Date: Mon, 2 Oct 2017 15:27:26 -0400
Subject: [PATCH 2543/4131] drm/amd/display: Ignore wrong tautological warning
Some of our HW calcs functions compares a var against
itself to check for NaN. Gcc isn't fond of it and wrongfully
warns about a tautological comparison. Disable this check
for dcn_calcs_math.c.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
---
drivers/gpu/drm/amd/display/dc/calcs/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/Makefile b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
index a095472..41ef359 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
@@ -5,7 +5,7 @@
CFLAGS_dcn_calcs.o := -mhard-float -msse -mpreferred-stack-boundary=4
CFLAGS_dcn_calc_auto.o := -mhard-float -msse -mpreferred-stack-boundary=4
-CFLAGS_dcn_calc_math.o := -mhard-float -msse -mpreferred-stack-boundary=4
+CFLAGS_dcn_calc_math.o := -mhard-float -msse -mpreferred-stack-boundary=4 -Wno-tautological-compare
BW_CALCS = dce_calcs.o bw_fixed.o custom_float.o
--
2.7.4
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