Messages in this thread Patch in this message |  | | | From | Andrea Righi <> | | Subject | [PATCH 1/2] kfifo: implement missing __kfifo_skip_r() | | Date | Thu, 12 Aug 2010 17:32:37 +0200 |
| |
kfifo_skip() is currently broken, due to the missing of the internal helper function. Add it.
Signed-off-by: Andrea Righi <arighi@develer.com> --- include/linux/kfifo.h | 2 ++ kernel/kfifo.c | 9 +++++++++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h index 311f875..4aa95f2 100644 --- a/include/linux/kfifo.h +++ b/include/linux/kfifo.h @@ -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); diff --git a/kernel/kfifo.c b/kernel/kfifo.c index 02192dd..06d6eee 100644 --- a/kernel/kfifo.c +++ b/kernel/kfifo.c @@ -504,6 +504,15 @@ 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) { -- 1.7.0.4
|  |