linux-kernel - [PATCH][next] ASoC: uniphier: aio-core: Make some read-only arrays static const

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Message-Id: <20221202164156.1812971-1-colin.i.king@gmail.com>
Date:   Fri,  2 Dec 2022 16:41:56 +0000
From:   Colin Ian King <colin.i.king@...il.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] ASoC: uniphier: aio-core: Make some read-only arrays static const

Don't populate the read-only arrays slotsel_2ch, slotsel_multi, v_pll
and v_div on the stack but instead make them static const. Also makes
the object code a little smaller.

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 sound/soc/uniphier/aio-core.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/sound/soc/uniphier/aio-core.c b/sound/soc/uniphier/aio-core.c
index b8195778953e..0eba60758134 100644
--- a/sound/soc/uniphier/aio-core.c
+++ b/sound/soc/uniphier/aio-core.c
@@ -277,17 +277,18 @@ void aio_port_reset(struct uniphier_aio_sub *sub)
 static int aio_port_set_ch(struct uniphier_aio_sub *sub)
 {
 	struct regmap *r = sub->aio->chip->regmap;
-	u32 slotsel_2ch[] = {
+	static const u32 slotsel_2ch[] = {
 		0, 0, 0, 0, 0,
 	};
-	u32 slotsel_multi[] = {
+	static const u32 slotsel_multi[] = {
 		OPORTMXTYSLOTCTR_SLOTSEL_SLOT0,
 		OPORTMXTYSLOTCTR_SLOTSEL_SLOT1,
 		OPORTMXTYSLOTCTR_SLOTSEL_SLOT2,
 		OPORTMXTYSLOTCTR_SLOTSEL_SLOT3,
 		OPORTMXTYSLOTCTR_SLOTSEL_SLOT4,
 	};
-	u32 mode, *slotsel;
+	u32 mode;
+	const u32 *slotsel;
 	int i;
 
 	switch (params_channels(&sub->params)) {
@@ -515,13 +516,13 @@ static int aio_port_set_clk(struct uniphier_aio_sub *sub)
 	struct uniphier_aio_chip *chip = sub->aio->chip;
 	struct device *dev = &sub->aio->chip->pdev->dev;
 	struct regmap *r = sub->aio->chip->regmap;
-	u32 v_pll[] = {
+	static const u32 v_pll[] = {
 		OPORTMXCTR2_ACLKSEL_A1, OPORTMXCTR2_ACLKSEL_F1,
 		OPORTMXCTR2_ACLKSEL_A2, OPORTMXCTR2_ACLKSEL_F2,
 		OPORTMXCTR2_ACLKSEL_A2PLL,
 		OPORTMXCTR2_ACLKSEL_RX1,
 	};
-	u32 v_div[] = {
+	static const u32 v_div[] = {
 		OPORTMXCTR2_DACCKSEL_1_2, OPORTMXCTR2_DACCKSEL_1_3,
 		OPORTMXCTR2_DACCKSEL_1_1, OPORTMXCTR2_DACCKSEL_2_3,
 	};
-- 
2.38.1