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From:   Arnd Bergmann <arnd@kernel.org>
To:     Harry Wentland <harry.wentland@amd.com>,
        Leo Li <sunpeng.li@amd.com>,
        Alex Deucher <alexander.deucher@amd.com>,
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Cc:     Arnd Bergmann <arnd@arndb.de>, Denis Efremov <efremov@linux.com>,
        Aric Cyr <Aric.Cyr@amd.com>, Josip Pavic <Josip.Pavic@amd.com>,
        Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>,
        Reza Amini <Reza.Amini@amd.com>,
        Lewis Huang <Lewis.Huang@amd.com>,
        amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] drm/amdgpu: fix build_coefficients() argument
Date:   Mon, 26 Oct 2020 22:00:32 +0100
Message-Id: <20201026210039.3884312-4-arnd@kernel.org>
In-Reply-To: <20201026210039.3884312-1-arnd@kernel.org>
References: <20201026210039.3884312-1-arnd@kernel.org>
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From: Arnd Bergmann <arnd@arndb.de>

gcc -Wextra warns about a function taking an enum argument
being called with a bool:

drivers/gpu/drm/amd/amdgpu/../display/modules/color/color_gamma.c: In function 'apply_degamma_for_user_regamma':
drivers/gpu/drm/amd/amdgpu/../display/modules/color/color_gamma.c:1617:29: warning: implicit conversion from 'enum <anonymous>' to 'enum dc_transfer_func_predefined' [-Wenum-conversion]
 1617 |  build_coefficients(&coeff, true);

It appears that a patch was added using the old calling conventions
after the type was changed, and the value should actually be 0
(TRANSFER_FUNCTION_SRGB) here instead of 1 (true).

Fixes: 55a01d4023ce ("drm/amd/display: Add user_regamma to color module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/amd/display/modules/color/color_gamma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
index b8695660b480..09bc2c249e1a 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
@@ -1614,7 +1614,7 @@ static void apply_degamma_for_user_regamma(struct pwl_float_data_ex *rgb_regamma
 	struct pwl_float_data_ex *rgb = rgb_regamma;
 	const struct hw_x_point *coord_x = coordinates_x;
 
-	build_coefficients(&coeff, true);
+	build_coefficients(&coeff, TRANSFER_FUNCTION_SRGB);
 
 	i = 0;
 	while (i != hw_points_num + 1) {
-- 
2.27.0