firmware: google: memconsole: Use const 'struct bin_attribute' callback

The sysfs core now provides callback variants that explicitly take a
const pointer. Use them so the non-const variants can be removed.

Signed-off-by: Thomas Weißschuh <[email protected]>
Acked-by: Brian Norris <[email protected]>
Link: https://lore.kernel.org/r/20241215-sysfs-const-bin_attr-google-v1-3-e5c2808f5833@weissschuh.net
Signed-off-by: Tzung-Bi Shih <[email protected]>

Author: t-8ch

drivers/firmware/google/memconsole.c

@@ -14,7 +14,7 @@
 #include "memconsole.h"
 
 static ssize_t memconsole_read(struct file *filp, struct kobject *kobp,
-			       struct bin_attribute *bin_attr, char *buf,
+			       const struct bin_attribute *bin_attr, char *buf,
 			       loff_t pos, size_t count)
 {
 	ssize_t (*memconsole_read_func)(char *, loff_t, size_t);
@@ -28,7 +28,7 @@ static ssize_t memconsole_read(struct file *filp, struct kobject *kobp,
 
 static struct bin_attribute memconsole_bin_attr = {
 	.attr = {.name = "log", .mode = 0444},
-	.read = memconsole_read,
+	.read_new = memconsole_read,
 };
 
 void memconsole_setup(ssize_t (*read_func)(char *, loff_t, size_t))