linux-kernel - [PATCH 1/3] USB: core: Constify static attribute

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Message-Id: <20201125162500.37228-2-rikard.falkeborn@gmail.com>
Date:   Wed, 25 Nov 2020 17:24:58 +0100
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Eugeniu Rosca <erosca@...adit-jv.com>,
        chenqiwu <chenqiwu@...omi.com>,
        Zeng Tao <prime.zeng@...ilicon.com>
Subject: [PATCH 1/3] USB: core: Constify static attribute_group structs

These are never modified, so make them const to allow the compiler to
put them in read-only memory. Done with the help of coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/usb/core/endpoint.c |  2 +-
 drivers/usb/core/port.c     |  4 ++--
 drivers/usb/core/sysfs.c    | 14 +++++++-------
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c
index 1c2c04079676..903426b6d305 100644
--- a/drivers/usb/core/endpoint.c
+++ b/drivers/usb/core/endpoint.c
@@ -153,7 +153,7 @@ static struct attribute *ep_dev_attrs[] = {
 	&dev_attr_direction.attr,
 	NULL,
 };
-static struct attribute_group ep_dev_attr_grp = {
+static const struct attribute_group ep_dev_attr_grp = {
 	.attrs = ep_dev_attrs,
 };
 static const struct attribute_group *ep_dev_groups[] = {
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 235a7c645503..dfcca9c876c7 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -155,7 +155,7 @@ static struct attribute *port_dev_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group port_dev_attr_grp = {
+static const struct attribute_group port_dev_attr_grp = {
 	.attrs = port_dev_attrs,
 };
 
@@ -169,7 +169,7 @@ static struct attribute *port_dev_usb3_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group port_dev_usb3_attr_grp = {
+static const struct attribute_group port_dev_usb3_attr_grp = {
 	.attrs = port_dev_usb3_attrs,
 };
 
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 8d134193fa0c..d85699bee671 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -641,7 +641,7 @@ static struct attribute *usb2_hardware_lpm_attr[] = {
 	&dev_attr_usb2_lpm_besl.attr,
 	NULL,
 };
-static struct attribute_group usb2_hardware_lpm_attr_group = {
+static const struct attribute_group usb2_hardware_lpm_attr_group = {
 	.name	= power_group_name,
 	.attrs	= usb2_hardware_lpm_attr,
 };
@@ -651,7 +651,7 @@ static struct attribute *usb3_hardware_lpm_attr[] = {
 	&dev_attr_usb3_hardware_lpm_u2.attr,
 	NULL,
 };
-static struct attribute_group usb3_hardware_lpm_attr_group = {
+static const struct attribute_group usb3_hardware_lpm_attr_group = {
 	.name	= power_group_name,
 	.attrs	= usb3_hardware_lpm_attr,
 };
@@ -663,7 +663,7 @@ static struct attribute *power_attrs[] = {
 	&dev_attr_active_duration.attr,
 	NULL,
 };
-static struct attribute_group power_attr_group = {
+static const struct attribute_group power_attr_group = {
 	.name	= power_group_name,
 	.attrs	= power_attrs,
 };
@@ -832,7 +832,7 @@ static struct attribute *dev_attrs[] = {
 #endif
 	NULL,
 };
-static struct attribute_group dev_attr_grp = {
+static const struct attribute_group dev_attr_grp = {
 	.attrs = dev_attrs,
 };
 
@@ -865,7 +865,7 @@ static umode_t dev_string_attrs_are_visible(struct kobject *kobj,
 	return a->mode;
 }
 
-static struct attribute_group dev_string_attr_grp = {
+static const struct attribute_group dev_string_attr_grp = {
 	.attrs =	dev_string_attrs,
 	.is_visible =	dev_string_attrs_are_visible,
 };
@@ -1222,7 +1222,7 @@ static struct attribute *intf_attrs[] = {
 	&dev_attr_interface_authorized.attr,
 	NULL,
 };
-static struct attribute_group intf_attr_grp = {
+static const struct attribute_group intf_attr_grp = {
 	.attrs = intf_attrs,
 };
 
@@ -1246,7 +1246,7 @@ static umode_t intf_assoc_attrs_are_visible(struct kobject *kobj,
 	return a->mode;
 }
 
-static struct attribute_group intf_assoc_attr_grp = {
+static const struct attribute_group intf_assoc_attr_grp = {
 	.attrs =	intf_assoc_attrs,
 	.is_visible =	intf_assoc_attrs_are_visible,
 };
-- 
2.29.2