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-rw-r--r--kernel/kfifo.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/kernel/kfifo.c b/kernel/kfifo.c
index 8da6bb9782bb..4950bdbe3477 100644
--- a/kernel/kfifo.c
+++ b/kernel/kfifo.c
@@ -28,11 +28,10 @@
#include <linux/log2.h>
static void _kfifo_init(struct kfifo *fifo, unsigned char *buffer,
- unsigned int size, spinlock_t *lock)
+ unsigned int size)
{
fifo->buffer = buffer;
fifo->size = size;
- fifo->lock = lock;
kfifo_reset(fifo);
}
@@ -42,16 +41,14 @@ static void _kfifo_init(struct kfifo *fifo, unsigned char *buffer,
* @fifo: the fifo to assign the buffer
* @buffer: the preallocated buffer to be used.
* @size: the size of the internal buffer, this have to be a power of 2.
- * @lock: the lock to be used to protect the fifo buffer
*
*/
-void kfifo_init(struct kfifo *fifo, unsigned char *buffer, unsigned int size,
- spinlock_t *lock)
+void kfifo_init(struct kfifo *fifo, unsigned char *buffer, unsigned int size)
{
/* size must be a power of 2 */
BUG_ON(!is_power_of_2(size));
- _kfifo_init(fifo, buffer, size, lock);
+ _kfifo_init(fifo, buffer, size);
}
EXPORT_SYMBOL(kfifo_init);
@@ -60,7 +57,6 @@ EXPORT_SYMBOL(kfifo_init);
* @fifo: the fifo to assign then new buffer
* @size: the size of the buffer to be allocated, this have to be a power of 2.
* @gfp_mask: get_free_pages mask, passed to kmalloc()
- * @lock: the lock to be used to protect the fifo buffer
*
* This function dynamically allocates a new fifo internal buffer
*
@@ -68,8 +64,7 @@ EXPORT_SYMBOL(kfifo_init);
* The buffer will be release with kfifo_free().
* Return 0 if no error, otherwise the an error code
*/
-int kfifo_alloc(struct kfifo *fifo, unsigned int size, gfp_t gfp_mask,
- spinlock_t *lock)
+int kfifo_alloc(struct kfifo *fifo, unsigned int size, gfp_t gfp_mask)
{
unsigned char *buffer;
@@ -84,11 +79,11 @@ int kfifo_alloc(struct kfifo *fifo, unsigned int size, gfp_t gfp_mask,
buffer = kmalloc(size, gfp_mask);
if (!buffer) {
- _kfifo_init(fifo, 0, 0, NULL);
+ _kfifo_init(fifo, 0, 0);
return -ENOMEM;
}
- _kfifo_init(fifo, buffer, size, lock);
+ _kfifo_init(fifo, buffer, size);
return 0;
}