From: Dan Carpenter Date: Mon, 04 Jan 2016 20:44:24 +0000 Subject: [patch] drm/amd/powerplay: precedence bug in init_non_clock_fields() Message-Id: <20160104204424.GD19867@mwanda> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: David Airlie , Jammy Zhou Cc: Alex Deucher , Tom St Denis , kernel-janitors@vger.kernel.org, Rex Zhu , dri-devel@lists.freedesktop.org The cast to uint8_t happens before the right shift so this always sets .m3arb to zero. The cast is actually a no-op so we can remove it. Fixes: 3bace3591493 ('drm/amd/powerplay: add hardware manager sub-component') Signed-off-by: Dan Carpenter --- Static analysis stuff. Not tested. diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c index 1d385f4..9031a44 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c @@ -735,8 +735,8 @@ static int init_non_clock_fields(struct pp_hwmgr *hwmgr, ps->memory.dllOff = (0 != tmp); - ps->memory.m3arb = (uint8_t)(le32_to_cpu(pnon_clock_info->ulCapsAndSettings) & - ATOM_PPLIB_M3ARB_MASK) >> ATOM_PPLIB_M3ARB_SHIFT; + ps->memory.m3arb = (le32_to_cpu(pnon_clock_info->ulCapsAndSettings) & + ATOM_PPLIB_M3ARB_MASK) >> ATOM_PPLIB_M3ARB_SHIFT; ps->temperatures.min = PP_TEMPERATURE_UNITS_PER_CENTIGRADES * pnon_clock_info->ucMinTemperature;