提交 b35de43b 编写于 作者: A Andrea Righi 提交者: Linus Torvalds

kfifo: implement missing __kfifo_skip_r()

kfifo_skip() is currently broken, due to the missing of the internal
helper function.  Add it.
Signed-off-by: NAndrea Righi <arighi@develer.com>
Cc: Greg KH <greg@kroah.com>
Acked-by: NStefani Seibold <stefani@seibold.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 c81476df
......@@ -836,6 +836,8 @@ extern void __kfifo_dma_out_finish_r(struct __kfifo *fifo, size_t recsize);
extern unsigned int __kfifo_len_r(struct __kfifo *fifo, size_t recsize);
extern void __kfifo_skip_r(struct __kfifo *fifo, size_t recsize);
extern unsigned int __kfifo_out_peek_r(struct __kfifo *fifo,
void *buf, unsigned int len, size_t recsize);
......
......@@ -503,6 +503,15 @@ unsigned int __kfifo_out_r(struct __kfifo *fifo, void *buf,
}
EXPORT_SYMBOL(__kfifo_out_r);
void __kfifo_skip_r(struct __kfifo *fifo, size_t recsize)
{
unsigned int n;
n = __kfifo_peek_n(fifo, recsize);
fifo->out += n + recsize;
}
EXPORT_SYMBOL(__kfifo_skip_r);
int __kfifo_from_user_r(struct __kfifo *fifo, const void __user *from,
unsigned long len, unsigned int *copied, size_t recsize)
{
......
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