linux-kernel - [PATCH] drm/radeon: remove unreachable code

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Message-Id: <1421673040-12305-1-git-send-email-der.herr@hofr.at>
Date:	Mon, 19 Jan 2015 14:10:40 +0100
From:	Nicholas Mc Guire <der.herr@...r.at>
To:	Alex Deucher <alexander.deucher@....com>
Cc:	Christian Koenig <christian.koenig@....com>,
	David Airlie <airlied@...ux.ie>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Nicholas Mc Guire <der.herr@...r.at>
Subject: [PATCH] drm/radeon: remove unreachable code

Signed-off-by: Nicholas Mc Guire <der.herr@...r.at>
---

As the if (CISLAND_MINIMUM_ENGINE_CLOCK != CISLAND_MINIMUM_ENGINE_CLOCK) is never
satisfied - the entire else branch is never going to be executed and could be 
removed - provided this is not simply a bug and needs to be fixed...

Patch is against 3.19.0-rc5 -next-20150119

Patch was only compile tested with x86_64_defconfig + CONFIG_DRM=m,
CONFIG_DRM_RADEON=m

 drivers/gpu/drm/radeon/ci_dpm.c |    7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index f373a81..28db529 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -3805,13 +3805,8 @@ static void ci_find_dpm_states_clocks_in_dpm_table(struct radeon_device *rdev,
 			break;
 	}
 
-	if (i >= sclk_table->count) {
+	if (i >= sclk_table->count)
 		pi->need_update_smu7_dpm_table |= DPMTABLE_OD_UPDATE_SCLK;
-	} else {
-		/* XXX check display min clock requirements */
-		if (CISLAND_MINIMUM_ENGINE_CLOCK != CISLAND_MINIMUM_ENGINE_CLOCK)
-			pi->need_update_smu7_dpm_table |= DPMTABLE_UPDATE_SCLK;
-	}
 
 	for (i = 0; i < mclk_table->count; i++) {
 		if (mclk == mclk_table->dpm_levels[i].value)
-- 
1.7.10.4

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