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Message-Id: <20241216-sysfs-const-bin_attr-net-v1-5-ec460b91f274@weissschuh.net>
Date: Mon, 16 Dec 2024 12:30:12 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Roopa Prabhu <roopa@...dia.com>,
Nikolay Aleksandrov <razor@...ckwall.org>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Simon Horman <horms@...nel.org>, Andrew Lunn <andrew@...n.ch>,
Heiner Kallweit <hkallweit1@...il.com>,
Russell King <linux@...linux.org.uk>, Kalle Valo <kvalo@...nel.org>,
Manish Chopra <manishc@...vell.com>, Rahul Verma <rahulv@...vell.com>,
GR-Linux-NIC-Dev@...vell.com, Andrew Lunn <andrew+netdev@...n.ch>,
Shahed Shaikh <shshaikh@...vell.com>
Cc: bridge@...ts.linux.dev, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH net-next 5/5] qlcnic: constify 'struct bin_attribute'
The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c | 70 +++++++++++------------
1 file changed, 35 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index 74125188beb82515f57a20ae24dcd526943d05ee..82c357865f19ba8f272426abc09f47b40d6b53da 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -264,7 +264,7 @@ static int qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
}
static ssize_t qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
- struct bin_attribute *attr, char *buf,
+ const struct bin_attribute *attr, char *buf,
loff_t offset, size_t size)
{
struct device *dev = kobj_to_dev(kobj);
@@ -281,7 +281,7 @@ static ssize_t qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
}
static ssize_t qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
- struct bin_attribute *attr, char *buf,
+ const struct bin_attribute *attr, char *buf,
loff_t offset, size_t size)
{
struct device *dev = kobj_to_dev(kobj);
@@ -310,7 +310,7 @@ static int qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
}
static ssize_t qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
- struct bin_attribute *attr, char *buf,
+ const struct bin_attribute *attr, char *buf,
loff_t offset, size_t size)
{
struct device *dev = kobj_to_dev(kobj);
@@ -332,7 +332,7 @@ static ssize_t qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
}
static ssize_t qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
- struct bin_attribute *attr, char *buf,
+ const struct bin_attribute *attr, char *buf,
loff_t offset, size_t size)
{
struct device *dev = kobj_to_dev(kobj);
@@ -396,7 +396,7 @@ static int validate_pm_config(struct qlcnic_adapter *adapter,
static ssize_t qlcnic_sysfs_write_pm_config(struct file *filp,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -446,7 +446,7 @@ static ssize_t qlcnic_sysfs_write_pm_config(struct file *filp,
static ssize_t qlcnic_sysfs_read_pm_config(struct file *filp,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -539,7 +539,7 @@ static int validate_esw_config(struct qlcnic_adapter *adapter,
static ssize_t qlcnic_sysfs_write_esw_config(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -623,7 +623,7 @@ static ssize_t qlcnic_sysfs_write_esw_config(struct file *file,
static ssize_t qlcnic_sysfs_read_esw_config(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -675,7 +675,7 @@ static int validate_npar_config(struct qlcnic_adapter *adapter,
static ssize_t qlcnic_sysfs_write_npar_config(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -722,7 +722,7 @@ static ssize_t qlcnic_sysfs_write_npar_config(struct file *file,
static ssize_t qlcnic_sysfs_read_npar_config(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -769,7 +769,7 @@ static ssize_t qlcnic_sysfs_read_npar_config(struct file *file,
static ssize_t qlcnic_sysfs_get_port_stats(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -804,7 +804,7 @@ static ssize_t qlcnic_sysfs_get_port_stats(struct file *file,
static ssize_t qlcnic_sysfs_get_esw_stats(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -839,7 +839,7 @@ static ssize_t qlcnic_sysfs_get_esw_stats(struct file *file,
static ssize_t qlcnic_sysfs_clear_esw_stats(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -868,7 +868,7 @@ static ssize_t qlcnic_sysfs_clear_esw_stats(struct file *file,
static ssize_t qlcnic_sysfs_clear_port_stats(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -898,7 +898,7 @@ static ssize_t qlcnic_sysfs_clear_port_stats(struct file *file,
static ssize_t qlcnic_sysfs_read_pci_config(struct file *file,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -938,7 +938,7 @@ static ssize_t qlcnic_sysfs_read_pci_config(struct file *file,
static ssize_t qlcnic_83xx_sysfs_flash_read_handler(struct file *filp,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -1115,7 +1115,7 @@ static int qlcnic_83xx_sysfs_flash_write(struct qlcnic_adapter *adapter,
static ssize_t qlcnic_83xx_sysfs_flash_write_handler(struct file *filp,
struct kobject *kobj,
- struct bin_attribute *attr,
+ const struct bin_attribute *attr,
char *buf, loff_t offset,
size_t size)
{
@@ -1195,64 +1195,64 @@ static const struct device_attribute dev_attr_beacon = {
static const struct bin_attribute bin_attr_crb = {
.attr = { .name = "crb", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_read_crb,
- .write = qlcnic_sysfs_write_crb,
+ .read_new = qlcnic_sysfs_read_crb,
+ .write_new = qlcnic_sysfs_write_crb,
};
static const struct bin_attribute bin_attr_mem = {
.attr = { .name = "mem", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_read_mem,
- .write = qlcnic_sysfs_write_mem,
+ .read_new = qlcnic_sysfs_read_mem,
+ .write_new = qlcnic_sysfs_write_mem,
};
static const struct bin_attribute bin_attr_npar_config = {
.attr = { .name = "npar_config", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_read_npar_config,
- .write = qlcnic_sysfs_write_npar_config,
+ .read_new = qlcnic_sysfs_read_npar_config,
+ .write_new = qlcnic_sysfs_write_npar_config,
};
static const struct bin_attribute bin_attr_pci_config = {
.attr = { .name = "pci_config", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_read_pci_config,
- .write = NULL,
+ .read_new = qlcnic_sysfs_read_pci_config,
+ .write_new = NULL,
};
static const struct bin_attribute bin_attr_port_stats = {
.attr = { .name = "port_stats", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_get_port_stats,
- .write = qlcnic_sysfs_clear_port_stats,
+ .read_new = qlcnic_sysfs_get_port_stats,
+ .write_new = qlcnic_sysfs_clear_port_stats,
};
static const struct bin_attribute bin_attr_esw_stats = {
.attr = { .name = "esw_stats", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_get_esw_stats,
- .write = qlcnic_sysfs_clear_esw_stats,
+ .read_new = qlcnic_sysfs_get_esw_stats,
+ .write_new = qlcnic_sysfs_clear_esw_stats,
};
static const struct bin_attribute bin_attr_esw_config = {
.attr = { .name = "esw_config", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_read_esw_config,
- .write = qlcnic_sysfs_write_esw_config,
+ .read_new = qlcnic_sysfs_read_esw_config,
+ .write_new = qlcnic_sysfs_write_esw_config,
};
static const struct bin_attribute bin_attr_pm_config = {
.attr = { .name = "pm_config", .mode = 0644 },
.size = 0,
- .read = qlcnic_sysfs_read_pm_config,
- .write = qlcnic_sysfs_write_pm_config,
+ .read_new = qlcnic_sysfs_read_pm_config,
+ .write_new = qlcnic_sysfs_write_pm_config,
};
static const struct bin_attribute bin_attr_flash = {
.attr = { .name = "flash", .mode = 0644 },
.size = 0,
- .read = qlcnic_83xx_sysfs_flash_read_handler,
- .write = qlcnic_83xx_sysfs_flash_write_handler,
+ .read_new = qlcnic_83xx_sysfs_flash_read_handler,
+ .write_new = qlcnic_83xx_sysfs_flash_write_handler,
};
#ifdef CONFIG_QLCNIC_HWMON
--
2.47.1
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