linux-kernel - [PATCH -next] drm/amdgpu/navi10: fix unsigned comparison with 0

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Date:   Wed, 6 May 2020 13:11:13 +0800
From:   ChenTao <chentao107@...wei.com>
To:     <airlied@...ux.ie>, <daniel@...ll.ch>
CC:     <alexander.deucher@....com>, <christian.koenig@....com>,
        <David1.Zhou@....com>, <amd-gfx@...ts.freedesktop.org>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <chentao107@...wei.com>
Subject: [PATCH -next] drm/amdgpu/navi10: fix unsigned comparison with 0

Fixes warning because size is uint32_t and can never be negtative

drivers/gpu/drm/amd/amdgpu/../powerplay/navi10_ppt.c:1296:12: warning:
comparison of unsigned expression < 0 is always false [-Wtype-limits]
   if (size < 0)

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: ChenTao <chentao107@...wei.com>
---
 drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 2184d247a9f7..0c9be864d072 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -1293,8 +1293,6 @@ static int navi10_set_power_profile_mode(struct smu_context *smu, long *input, u
 	}
 
 	if (smu->power_profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) {
-		if (size < 0)
-			return -EINVAL;
 
 		ret = smu_update_table(smu,
 				       SMU_TABLE_ACTIVITY_MONITOR_COEFF, WORKLOAD_PPLIB_CUSTOM_BIT,
-- 
2.22.0