From 2feaebc0ef5213a0545f9bd803ea9424984babbe Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Sat, 7 May 2022 14:54:44 +0800
Subject: drm/amd/pm: suppress compile warning about possible unaligned
accesses
Git-commit: 663e48113136769814c913471fbb9ced080b0af2
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Suppress the following compile warning:
In file included from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu13/smu_v13_0_0_ppt.c:39:
>> drivers/gpu/drm/amd/amdgpu/../pm/inc/smu_v13_0_0_pptable.h:194:39:
warning: field overdrive_table within 'struct smu_13_0_0_powerplay_table' is
less aligned than 'struct smu_13_0_0_overdrive_table' and is usually due to
'struct smu_13_0_0_powerplay_table' being packed,
which can lead to unaligned accesses [-Wunaligned-access]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/pm/inc/smu_v13_0_0_pptable.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/pm/inc/smu_v13_0_0_pptable.h b/drivers/gpu/drm/amd/pm/inc/smu_v13_0_0_pptable.h
index 670f2ef67868..566a0da59e53 100644
--- a/drivers/gpu/drm/amd/pm/inc/smu_v13_0_0_pptable.h
+++ b/drivers/gpu/drm/amd/pm/inc/smu_v13_0_0_pptable.h
@@ -22,6 +22,8 @@
#ifndef SMU_13_0_0_PPTABLE_H
#define SMU_13_0_0_PPTABLE_H
+#pragma pack(push, 1)
+
#define SMU_13_0_0_TABLE_FORMAT_REVISION 15
//// POWERPLAYTABLE::ulPlatformCaps
@@ -194,7 +196,8 @@ struct smu_13_0_0_powerplay_table
struct smu_13_0_0_overdrive_table overdrive_table;
uint8_t padding1;
PPTable_t smc_pptable; //PPTable_t in driver_if.h
-} __attribute__((packed));
+};
+#pragma pack(pop)
#endif
--
2.38.1