From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933811Ab0HLPcv (ORCPT ); Thu, 12 Aug 2010 11:32:51 -0400 Received: from trinity.develer.com ([83.149.158.210]:32926 "EHLO trinity.develer.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933710Ab0HLPcq (ORCPT ); Thu, 12 Aug 2010 11:32:46 -0400 From: Andrea Righi To: Stefani Seibold Cc: Greg Kroah-Hartman , Mauro Carvalho Chehab , Andi Kleen , linux-kernel@vger.kernel.org Subject: [PATCH 1/2] kfifo: implement missing __kfifo_skip_r() Date: Thu, 12 Aug 2010 17:32:37 +0200 Message-Id: <1281627158-9461-1-git-send-email-arighi@develer.com> X-Mailer: git-send-email 1.7.0.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kfifo_skip() is currently broken, due to the missing of the internal helper function. Add it. Signed-off-by: Andrea Righi --- 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