linux-kernel - [PATCH] drm/amdgpu: fix warning on older gcc releases

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Message-Id: <20170203164756.3625272-1-arnd@arndb.de>
Date:   Fri,  3 Feb 2017 17:47:26 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Alex Deucher <alexander.deucher@....com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Christian König <christian.koenig@....com>,
        David Airlie <airlied@...ux.ie>,
        Tom St Denis <tom.stdenis@....com>,
        Chunming Zhou <David1.Zhou@....com>,
        Monk Liu <Monk.Liu@....com>, Rex Zhu <Rex.Zhu@....com>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/amdgpu: fix warning on older gcc releases

gcc-4.8 warns about '{0}' being used an an initializer for nested structures:

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c: In function ‘gfx_v8_0_ring_emit_ce_meta_init’:
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:7263:2: warning: missing braces around initializer [-Wmissing-braces]
  } ce_payload = {0};
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c: In function ‘gfx_v8_0_ring_emit_de_meta_init’:
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:7290:2: warning: missing braces around initializer [-Wmissing-braces]
  } de_payload = {0};

Using an empty {} initializer however has the same effect and works on all versions.

Fixes: acad2b2a7b70 ("drm/amdgpu:implement CE/DE meta-init routines")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 35f9cd83b821..cf1cb406b5ed 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -7260,7 +7260,7 @@ static void gfx_v8_0_ring_emit_ce_meta_init(struct amdgpu_ring *ring, uint64_t c
 	static union {
 		struct amdgpu_ce_ib_state regular;
 		struct amdgpu_ce_ib_state_chained_ib chained;
-	} ce_payload = {0};
+	} ce_payload = {};
 
 	if (ring->adev->virt.chained_ib_support) {
 		ce_payload_addr = csa_addr + offsetof(struct amdgpu_gfx_meta_data_chained_ib, ce_payload);
@@ -7287,7 +7287,7 @@ static void gfx_v8_0_ring_emit_de_meta_init(struct amdgpu_ring *ring, uint64_t c
 	static union {
 		struct amdgpu_de_ib_state regular;
 		struct amdgpu_de_ib_state_chained_ib chained;
-	} de_payload = {0};
+	} de_payload = {};
 
 	gds_addr = csa_addr + 4096;
 	if (ring->adev->virt.chained_ib_support) {
-- 
2.9.0