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-rw-r--r--include/linux/kfifo.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index ad6bdf5a5970..c3f8d82efd34 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -1,6 +1,7 @@
1/* 1/*
2 * A simple kernel FIFO implementation. 2 * A generic kernel FIFO implementation.
3 * 3 *
4 * Copyright (C) 2009 Stefani Seibold <stefani@seibold.net>
4 * Copyright (C) 2004 Stelian Pop <stelian@popies.net> 5 * Copyright (C) 2004 Stelian Pop <stelian@popies.net>
5 * 6 *
6 * This program is free software; you can redistribute it and/or modify 7 * This program is free software; you can redistribute it and/or modify
@@ -32,10 +33,10 @@ struct kfifo {
32 spinlock_t *lock; /* protects concurrent modifications */ 33 spinlock_t *lock; /* protects concurrent modifications */
33}; 34};
34 35
35extern struct kfifo *kfifo_init(unsigned char *buffer, unsigned int size, 36extern void kfifo_init(struct kfifo *fifo, unsigned char *buffer,
36 gfp_t gfp_mask, spinlock_t *lock); 37 unsigned int size, spinlock_t *lock);
37extern struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask, 38extern __must_check int kfifo_alloc(struct kfifo *fifo, unsigned int size,
38 spinlock_t *lock); 39 gfp_t gfp_mask, spinlock_t *lock);
39extern void kfifo_free(struct kfifo *fifo); 40extern void kfifo_free(struct kfifo *fifo);
40extern unsigned int __kfifo_put(struct kfifo *fifo, 41extern unsigned int __kfifo_put(struct kfifo *fifo,
41 const unsigned char *buffer, unsigned int len); 42 const unsigned char *buffer, unsigned int len);