diff mbox series

[net-next,4/5] netxen_nic: constify 'struct bin_attribute'

Message ID 20241216-sysfs-const-bin_attr-net-v1-4-ec460b91f274@weissschuh.net (mailing list archive)
State New
Delegated to: Johannes Berg
Headers show
Series net: constify 'struct bin_attribute' | expand

Commit Message

Thomas Weißschuh Dec. 16, 2024, 11:30 a.m. UTC 
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@weissschuh.net>
---
 drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

Comments

Simon Horman Dec. 17, 2024, 10:28 a.m. UTC | #1 
On Mon, Dec 16, 2024 at 12:30:11PM +0100, Thomas Weißschuh wrote:
> 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@weissschuh.net>

Reviewed-by: Simon Horman <horms@kernel.org>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 9cff0a8ffb2c55de195983051e4e7f8568528c0f..3383ee1dad14e2cb40062b27f32a7cffb6f3fac2 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -2832,7 +2832,7 @@  netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
 
 static ssize_t
 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
-		struct bin_attribute *attr,
+		const struct bin_attribute *attr,
 		char *buf, loff_t offset, size_t size)
 {
 	struct device *dev = kobj_to_dev(kobj);
@@ -2860,7 +2860,7 @@  netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
 
 static ssize_t
 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
-		struct bin_attribute *attr,
+		const struct bin_attribute *attr,
 		char *buf, loff_t offset, size_t size)
 {
 	struct device *dev = kobj_to_dev(kobj);
@@ -2901,7 +2901,7 @@  netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
 
 static ssize_t
 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
-		struct bin_attribute *attr,
+		const struct bin_attribute *attr,
 		char *buf, loff_t offset, size_t size)
 {
 	struct device *dev = kobj_to_dev(kobj);
@@ -2922,7 +2922,7 @@  netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
 }
 
 static ssize_t netxen_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);
@@ -2946,20 +2946,20 @@  static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
 static const struct bin_attribute bin_attr_crb = {
 	.attr = { .name = "crb", .mode = 0644 },
 	.size = 0,
-	.read = netxen_sysfs_read_crb,
-	.write = netxen_sysfs_write_crb,
+	.read_new = netxen_sysfs_read_crb,
+	.write_new = netxen_sysfs_write_crb,
 };
 
 static const struct bin_attribute bin_attr_mem = {
 	.attr = { .name = "mem", .mode = 0644 },
 	.size = 0,
-	.read = netxen_sysfs_read_mem,
-	.write = netxen_sysfs_write_mem,
+	.read_new = netxen_sysfs_read_mem,
+	.write_new = netxen_sysfs_write_mem,
 };
 
 static ssize_t
 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
-		struct bin_attribute *attr,
+		const struct bin_attribute *attr,
 		char *buf, loff_t offset, size_t size)
 {
 	struct device *dev = kobj_to_dev(kobj);
@@ -3082,7 +3082,7 @@  netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
 static const struct bin_attribute bin_attr_dimm = {
 	.attr = { .name = "dimm", .mode = 0644 },
 	.size = sizeof(struct netxen_dimm_cfg),
-	.read = netxen_sysfs_read_dimm,
+	.read_new = netxen_sysfs_read_dimm,
 };