linux-hardening - [PATCH AUTOSEL 6.6 15/18] drm/amdgpu: silence UBSAN warning

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Message-ID: <20240605120409.2967044-15-sashal@kernel.org>
Date: Wed,  5 Jun 2024 08:03:54 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Alex Deucher <alexander.deucher@....com>,
	Christian König <christian.koenig@....com>,
	Sasha Levin <sashal@...nel.org>,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	Hawking.Zhang@....com,
	candice.li@....com,
	li.ma@....com,
	aurabindo.pillai@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-hardening@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 15/18] drm/amdgpu: silence UBSAN warning

From: Alex Deucher <alexander.deucher@....com>

[ Upstream commit 05d9e24ddb15160164ba6e917a88c00907dc2434 ]

Convert a variable sized array from [1] to [].

Reviewed-by: Christian König <christian.koenig@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/include/atomfirmware.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/include/atomfirmware.h b/drivers/gpu/drm/amd/include/atomfirmware.h
index fa7d6ced786f1..06be085515200 100644
--- a/drivers/gpu/drm/amd/include/atomfirmware.h
+++ b/drivers/gpu/drm/amd/include/atomfirmware.h
@@ -3508,7 +3508,7 @@ struct atom_gpio_voltage_object_v4
    uint8_t  phase_delay_us;                      // phase delay in unit of micro second
    uint8_t  reserved;   
    uint32_t gpio_mask_val;                         // GPIO Mask value
-   struct atom_voltage_gpio_map_lut voltage_gpio_lut[1];
+   struct atom_voltage_gpio_map_lut voltage_gpio_lut[] __counted_by(gpio_entry_num);
 };
 
 struct  atom_svid2_voltage_object_v4
-- 
2.43.0