Files
linux/arch/powerpc/include/asm/secvar.h
Russell Currey ec2f40bd00 powerpc/secvar: Handle format string in the consumer
The code that handles the format string in secvar-sysfs.c is entirely
OPAL specific, so create a new "format" op in secvar_operations to make
the secvar code more generic.  No functional change.

Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230210080401.345462-8-ajd@linux.ibm.com
2023-02-12 22:12:37 +11:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 IBM Corporation
* Author: Nayna Jain
*
* PowerPC secure variable operations.
*/
#ifndef SECVAR_OPS_H
#define SECVAR_OPS_H
#include <linux/types.h>
#include <linux/errno.h>
extern const struct secvar_operations *secvar_ops;
struct secvar_operations {
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);
ssize_t (*format)(char *buf, size_t bufsize);
};
#ifdef CONFIG_PPC_SECURE_BOOT
int set_secvar_ops(const struct secvar_operations *ops);
#else
static inline int set_secvar_ops(const struct secvar_operations *ops) { return 0; }
#endif
#endif