linux-kernel - [PATCH v3] thermal: ti-soc-thermal: Remove unused variable 'val'

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Message-ID: <20210421084256.57591-1-linruizhe@huawei.com>
Date:   Wed, 21 Apr 2021 16:42:56 +0800
From:   Lin Ruizhe <linruizhe@...wei.com>
To:     <rui.zhang@...el.com>, <edubezval@...il.com>, <j-keerthy@...com>,
        <daniel.lezcano@...aro.org>, <amitk@...nel.org>,
        <gregkh@...uxfoundation.org>, <radhesh.fadnis@...com>,
        <eballetbo@...il.com>
CC:     <linux-pm@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linruizhe@...wei.com>
Subject: [PATCH v3] thermal: ti-soc-thermal: Remove unused variable 'val'

The variable 'val'in function ti_bandgap_restore_ctxt is
the register value of read bandgap registers. This function is to
restore the context. But there is no operation on the return value
of this register, so this block is redundant. Hulk robot scans this
warning.This commit remove the dead code.

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: b87ea759a4cc ("staging: omap-thermal: fix context restore function")
Signed-off-by: Lin Ruizhe <linruizhe@...wei.com>
---
v3:
-Add Fixes tag and more accurate commit message in this patch.
v2:
-As suggest remove the whole unuesed block in fuction
 ti_bandgap_restore_ctxt

 drivers/thermal/ti-soc-thermal/ti-bandgap.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index d81af89166d2..684ffb645aa9 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1142,14 +1142,10 @@ static int ti_bandgap_restore_ctxt(struct ti_bandgap *bgp)
 	for (i = 0; i < bgp->conf->sensor_count; i++) {
 		struct temp_sensor_registers *tsr;
 		struct temp_sensor_regval *rval;
-		u32 val = 0;
 
 		rval = &bgp->regval[i];
 		tsr = bgp->conf->sensors[i].registers;
 
-		if (TI_BANDGAP_HAS(bgp, COUNTER))
-			val = ti_bandgap_readl(bgp, tsr->bgap_counter);
-
 		if (TI_BANDGAP_HAS(bgp, TSHUT_CONFIG))
 			ti_bandgap_writel(bgp, rval->tshut_threshold,
 					  tsr->tshut_threshold);
-- 
2.22.0