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| 1 | +// SPDX-License-Identifier: GPL-2.0-only |
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| 1 | 2 | /* |
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| 2 | 3 | * memconsole.c |
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| 3 | 4 | * |
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| 4 | 5 | * Architecture-independent parts of the memory based BIOS console. |
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| 5 | 6 | * |
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| 6 | 7 | * Copyright 2017 Google Inc. |
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| 7 | | - * |
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| 8 | | - * This program is free software; you can redistribute it and/or modify |
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| 9 | | - * it under the terms of the GNU General Public License v2.0 as published by |
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| 10 | | - * the Free Software Foundation. |
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| 11 | | - * |
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| 12 | | - * This program is distributed in the hope that it will be useful, |
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| 13 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | | - * GNU General Public License for more details. |
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| 16 | 8 | */ |
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| 17 | 9 | |
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| 18 | | -#include <linux/init.h> |
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| 19 | 10 | #include <linux/sysfs.h> |
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| 20 | 11 | #include <linux/kobject.h> |
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| 21 | 12 | #include <linux/module.h> |
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| 22 | 13 | |
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| 23 | 14 | #include "memconsole.h" |
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| 24 | 15 | |
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| 25 | | -static ssize_t (*memconsole_read_func)(char *, loff_t, size_t); |
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| 26 | | - |
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| 27 | 16 | static ssize_t memconsole_read(struct file *filp, struct kobject *kobp, |
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| 28 | 17 | struct bin_attribute *bin_attr, char *buf, |
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| 29 | 18 | loff_t pos, size_t count) |
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| 30 | 19 | { |
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| 20 | + ssize_t (*memconsole_read_func)(char *, loff_t, size_t); |
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| 21 | + |
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| 22 | + memconsole_read_func = bin_attr->private; |
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| 31 | 23 | if (WARN_ON_ONCE(!memconsole_read_func)) |
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| 32 | 24 | return -EIO; |
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| 25 | + |
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| 33 | 26 | return memconsole_read_func(buf, pos, count); |
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| 34 | 27 | } |
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| 35 | 28 | |
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| .. | .. |
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| 40 | 33 | |
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| 41 | 34 | void memconsole_setup(ssize_t (*read_func)(char *, loff_t, size_t)) |
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| 42 | 35 | { |
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| 43 | | - memconsole_read_func = read_func; |
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| 36 | + memconsole_bin_attr.private = read_func; |
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| 44 | 37 | } |
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| 45 | 38 | EXPORT_SYMBOL(memconsole_setup); |
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| 46 | 39 | |
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