[PATCH 2/2] drm/amd/pm: fix compile warnings about variable used uninitialized

Deucher, Alexander Alexander.Deucher at amd.com
Wed Oct 28 02:53:15 UTC 2020


[AMD Official Use Only - Internal Distribution Only]

Series is:
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
________________________________
From: Quan, Evan <Evan.Quan at amd.com>
Sent: Tuesday, October 27, 2020 10:45 PM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Quan, Evan <Evan.Quan at amd.com>; kernel test robot <lkp at intel.com>
Subject: [PATCH 2/2] drm/amd/pm: fix compile warnings about variable used uninitialized

Fix the compile warnings below:
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:1743:13: warning: variable 'min' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/smu7_hwmgr.c:1743:13: warning: variable 'max' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]

Change-Id: Id2dece80162cd10f004abbf3b62cba0c84e988f2
Signed-off-by: Evan Quan <evan.quan at amd.com>
Reported-by: kernel test robot <lkp at intel.com>
---
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
index 49db61a89505..5937150e6b37 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
@@ -1856,7 +1856,7 @@ static int smu7_calculate_ro_range(struct pp_hwmgr *hwmgr)
 {
         struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
         struct amdgpu_device *adev = hwmgr->adev;
-       uint32_t asicrev1, evv_revision, max, min;
+       uint32_t asicrev1, evv_revision, max = 0, min = 0;

         atomctrl_read_efuse(hwmgr, STRAP_EVV_REVISION_LSB, STRAP_EVV_REVISION_MSB,
                         &evv_revision);
@@ -1893,8 +1893,7 @@ static int smu7_calculate_ro_range(struct pp_hwmgr *hwmgr)
                                 max = 2500;
                         }
                 }
-       } else if ((hwmgr->chip_id == CHIP_POLARIS11) ||
-                  (hwmgr->chip_id == CHIP_POLARIS12)) {
+       } else {
                 min = 1100;
                 max = 2100;
         }
--
2.29.0

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