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[80.193.200.194]) by smtp.gmail.com with ESMTPSA id iv13-20020a05600c548d00b004064cd71aa8sm2415838wmb.34.2023.10.17.10.16.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Oct 2023 10:16:56 -0700 (PDT) From: Colin Ian King To: "Rafael J . Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Matthias Brugger , AngeloGioacchino Del Regno , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH][next] thermal: lvts: make some read-only arrays static const Date: Tue, 17 Oct 2023 18:16:55 +0100 Message-Id: <20231017171655.177096-1-colin.i.king@gmail.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231017_101702_654590_9A6EEA32 X-CRM114-Status: GOOD ( 11.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Don't populate the read-only arrays on the stack, instead make them static const. Make lvts_write_config parameters cmds and nr_cmds const too. Signed-off-by: Colin Ian King --- drivers/thermal/mediatek/lvts_thermal.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c index 877a0e5ac3fd..b20e69cb466f 100644 --- a/drivers/thermal/mediatek/lvts_thermal.c +++ b/drivers/thermal/mediatek/lvts_thermal.c @@ -308,7 +308,7 @@ static int lvts_get_temp(struct thermal_zone_device *tz, int *temp) static void lvts_update_irq_mask(struct lvts_ctrl *lvts_ctrl) { - u32 masks[] = { + static const u32 masks[] = { LVTS_MONINT_OFFSET_SENSOR0, LVTS_MONINT_OFFSET_SENSOR1, LVTS_MONINT_OFFSET_SENSOR2, @@ -400,7 +400,7 @@ static irqreturn_t lvts_ctrl_irq_handler(struct lvts_ctrl *lvts_ctrl) { irqreturn_t iret = IRQ_NONE; u32 value; - u32 masks[] = { + static const u32 masks[] = { LVTS_INT_SENSOR0, LVTS_INT_SENSOR1, LVTS_INT_SENSOR2, @@ -781,7 +781,7 @@ static int lvts_ctrl_init(struct device *dev, struct lvts_domain *lvts_td, * each write in the configuration register must be separated by a * delay of 2 us. */ -static void lvts_write_config(struct lvts_ctrl *lvts_ctrl, u32 *cmds, int nr_cmds) +static void lvts_write_config(struct lvts_ctrl *lvts_ctrl, const u32 *cmds, const int nr_cmds) { int i; @@ -865,7 +865,8 @@ static int lvts_ctrl_set_enable(struct lvts_ctrl *lvts_ctrl, int enable) static int lvts_ctrl_connect(struct device *dev, struct lvts_ctrl *lvts_ctrl) { - u32 id, cmds[] = { 0xC103FFFF, 0xC502FF55 }; + u32 id; + static const u32 cmds[] = { 0xC103FFFF, 0xC502FF55 }; lvts_write_config(lvts_ctrl, cmds, ARRAY_SIZE(cmds)); @@ -889,7 +890,7 @@ static int lvts_ctrl_initialize(struct device *dev, struct lvts_ctrl *lvts_ctrl) /* * Write device mask: 0xC1030000 */ - u32 cmds[] = { + static const u32 cmds[] = { 0xC1030E01, 0xC1030CFC, 0xC1030A8C, 0xC103098D, 0xC10308F1, 0xC10307A6, 0xC10306B8, 0xC1030500, 0xC1030420, 0xC1030300, 0xC1030030, 0xC10300F6, 0xC1030050, 0xC1030060, 0xC10300AC,