powerpc/secvar: Use u64 in secvar_operations

There's no reason for secvar_operations to use uint64_t vs the more
common kernel type u64.

The types are compatible, but they require different printk format
strings which can lead to confusion.

Change all the secvar related routines to use u64.
Reviewed-by: Russell Currey <ruscur@russell.cc>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230210080401.345462-5-ajd@linux.ibm.com

arch/powerpc/include/asm/secvar.h

@@ -14,12 +14,9 @@
 extern const struct secvar_operations *secvar_ops;
 
 struct secvar_operations {
-	int (*get)(const char *key, uint64_t key_len, u8 *data,
-		   uint64_t *data_size);
-	int (*get_next)(const char *key, uint64_t *key_len,
-			uint64_t keybufsize);
-	int (*set)(const char *key, uint64_t key_len, u8 *data,
-		   uint64_t data_size);
+	int (*get)(const char *key, u64 key_len, u8 *data, u64 *data_size);
+	int (*get_next)(const char *key, u64 *key_len, u64 keybufsize);
+	int (*set)(const char *key, u64 key_len, u8 *data, u64 data_size);
 };
 
 #ifdef CONFIG_PPC_SECURE_BOOT

arch/powerpc/kernel/secvar-sysfs.c

@@ -47,7 +47,7 @@ static ssize_t format_show(struct kobject *kobj, struct kobj_attribute *attr,
 static ssize_t size_show(struct kobject *kobj, struct kobj_attribute *attr,
 			 char *buf)
 {
-	uint64_t dsize;
+	u64 dsize;
 	int rc;
 
 	rc = secvar_ops->get(kobj->name, strlen(kobj->name) + 1, NULL, &dsize);
@@ -64,8 +64,8 @@ static ssize_t data_read(struct file *filep, struct kobject *kobj,
 			 struct bin_attribute *attr, char *buf, loff_t off,
 			 size_t count)
 {
-	uint64_t dsize;
 	char *data;
+	u64 dsize;
 	int rc;
 
 	rc = secvar_ops->get(kobj->name, strlen(kobj->name) + 1, NULL, &dsize);
@@ -166,9 +166,9 @@ static int update_kobj_size(void)
 
 static int secvar_sysfs_load(void)
 {
-	char *name;
-	uint64_t namesize = 0;
 	struct kobject *kobj;
+	u64 namesize = 0;
+	char *name;
 	int rc;
 
 	name = kzalloc(NAME_MAX_SIZE, GFP_KERNEL);

arch/powerpc/platforms/powernv/opal-secvar.c

@@ -54,8 +54,7 @@ static int opal_status_to_err(int rc)
 	return err;
 }
 
-static int opal_get_variable(const char *key, uint64_t ksize,
-			     u8 *data, uint64_t *dsize)
+static int opal_get_variable(const char *key, u64 ksize, u8 *data, u64 *dsize)
 {
 	int rc;
 
@@ -71,8 +70,7 @@ static int opal_get_variable(const char *key, uint64_t ksize,
 	return opal_status_to_err(rc);
 }
 
-static int opal_get_next_variable(const char *key, uint64_t *keylen,
-				  uint64_t keybufsize)
+static int opal_get_next_variable(const char *key, u64 *keylen, u64 keybufsize)
 {
 	int rc;
 
@@ -88,8 +86,7 @@ static int opal_get_next_variable(const char *key, uint64_t *keylen,
 	return opal_status_to_err(rc);
 }
 
-static int opal_set_variable(const char *key, uint64_t ksize, u8 *data,
-			     uint64_t dsize)
+static int opal_set_variable(const char *key, u64 ksize, u8 *data, u64 dsize)
 {
 	int rc;
 

security/integrity/platform_certs/load_powerpc.c

@@ -18,7 +18,7 @@
 /*
  * Get a certificate list blob from the named secure variable.
  */
-static __init void *get_cert_list(u8 *key, unsigned long keylen, uint64_t *size)
+static __init void *get_cert_list(u8 *key, unsigned long keylen, u64 *size)
 {
 	int rc;
 	void *db;
@@ -51,7 +51,7 @@ static __init void *get_cert_list(u8 *key, unsigned long keylen, uint64_t *size)
 static int __init load_powerpc_certs(void)
 {
 	void *db = NULL, *dbx = NULL;
-	uint64_t dbsize = 0, dbxsize = 0;
+	u64 dbsize = 0, dbxsize = 0;
 	int rc = 0;
 	struct device_node *node;