linux-kernel - [PATCH 3/3] phy: phy-brcm-usb: Constify static structs

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Date:   Sat, 16 May 2020 14:04:41 +0200
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     kishon@...com, vkoul@...nel.org, alcooperx@...il.com
Cc:     linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH 3/3] phy: phy-brcm-usb: Constify static structs

A number of structs were not modified and can therefore be made const
to allow the compiler to put them in read-only memory.

In order to do so, update a few functions that don't modify there input
to take pointers to const.

Before:
   text    data     bss     dec     hex filename
  15511    6448      64   22023    5607 drivers/phy/broadcom/phy-brcm-usb.o

After:
   text    data     bss     dec     hex filename
  16058    5936      64   22058    562a drivers/phy/broadcom/phy-brcm-usb.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/phy/broadcom/phy-brcm-usb.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
index 491bbd46c5b3..99fbc7e4138b 100644
--- a/drivers/phy/broadcom/phy-brcm-usb.c
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -39,14 +39,14 @@ struct match_chip_info {
 	u8 optional_reg;
 };
 
-static struct value_to_name_map brcm_dr_mode_to_name[] = {
+static const struct value_to_name_map brcm_dr_mode_to_name[] = {
 	{ USB_CTLR_MODE_HOST, "host" },
 	{ USB_CTLR_MODE_DEVICE, "peripheral" },
 	{ USB_CTLR_MODE_DRD, "drd" },
 	{ USB_CTLR_MODE_TYPEC_PD, "typec-pd" }
 };
 
-static struct value_to_name_map brcm_dual_mode_to_name[] = {
+static const struct value_to_name_map brcm_dual_mode_to_name[] = {
 	{ 0, "host" },
 	{ 1, "device" },
 	{ 2, "auto" },
@@ -138,7 +138,7 @@ static int brcm_usb_phy_exit(struct phy *gphy)
 	return 0;
 }
 
-static struct phy_ops brcm_usb_phy_ops = {
+static const struct phy_ops brcm_usb_phy_ops = {
 	.init		= brcm_usb_phy_init,
 	.exit		= brcm_usb_phy_exit,
 	.owner		= THIS_MODULE,
@@ -170,7 +170,7 @@ static struct phy *brcm_usb_phy_xlate(struct device *dev,
 	return ERR_PTR(-ENODEV);
 }
 
-static int name_to_value(struct value_to_name_map *table, int count,
+static int name_to_value(const struct value_to_name_map *table, int count,
 			 const char *name, int *value)
 {
 	int x;
@@ -185,7 +185,7 @@ static int name_to_value(struct value_to_name_map *table, int count,
 	return -EINVAL;
 }
 
-static const char *value_to_name(struct value_to_name_map *table, int count,
+static const char *value_to_name(const struct value_to_name_map *table, int count,
 				 int value)
 {
 	if (value >= count)
@@ -252,7 +252,7 @@ static const struct attribute_group brcm_usb_phy_group = {
 	.attrs = brcm_usb_phy_attrs,
 };
 
-static struct match_chip_info chip_info_7216 = {
+static const struct match_chip_info chip_info_7216 = {
 	.init_func = &brcm_usb_dvr_init_7216,
 	.required_regs = {
 		BRCM_REGS_CTRL,
@@ -262,7 +262,7 @@ static struct match_chip_info chip_info_7216 = {
 	},
 };
 
-static struct match_chip_info chip_info_7211b0 = {
+static const struct match_chip_info chip_info_7211b0 = {
 	.init_func = &brcm_usb_dvr_init_7211b0,
 	.required_regs = {
 		BRCM_REGS_CTRL,
@@ -275,7 +275,7 @@ static struct match_chip_info chip_info_7211b0 = {
 	.optional_reg = BRCM_REGS_BDC_EC,
 };
 
-static struct match_chip_info chip_info_7445 = {
+static const struct match_chip_info chip_info_7445 = {
 	.init_func = &brcm_usb_dvr_init_7445,
 	.required_regs = {
 		BRCM_REGS_CTRL,
-- 
2.26.2