linux-kernel - [PATCH][next] drm/amd/powerplay: remove a less than zero uint32

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Message-Id: <20190628152804.16954-1-colin.king@canonical.com>
Date:   Fri, 28 Jun 2019 16:28:04 +0100
From:   Colin King <colin.king@...onical.com>
To:     Rex Zhu <rex.zhu@....com>, Evan Quan <evan.quan@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        David Zhou <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] drm/amd/powerplay: remove a less than zero uint32_t check

From: Colin Ian King <colin.king@...onical.com>

The check to see if the uint32_t variable 'size' is less than zero
is redundant as it is unsigned and can never be less than zero.
Remove this redundant check.

Addresses-Coverity: ("Unsigned compared to zero")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index ac151da..6ea48d6 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -1043,9 +1043,6 @@ 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 << 16,
 				       (void *)(&activity_monitor), false);
-- 
2.7.4