From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH 7/9] ASoC: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning Date: Thu, 12 May 2011 16:50:10 -0700 Message-ID: <1305244212-19183-8-git-send-email-sboyd@codeaurora.org> References: <1305244212-19183-1-git-send-email-sboyd@codeaurora.org> Return-path: In-Reply-To: <1305244212-19183-1-git-send-email-sboyd@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org, Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown List-Id: alsa-devel@alsa-project.org Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following warning: In file included from arch/x86/include/asm/uaccess.h:573, from include/linux/poll.h:14, from include/sound/pcm.h:29, from include/sound/ac97_codec.h:31, from sound/soc/soc-core.c:34: In function 'copy_from_user', inlined from 'codec_reg_write_file' at sound/soc/soc-core.c:252: arch/x86/include/asm/uaccess_64.h:65: warning: call to 'copy_from_user_overflow' declared with attribute warning: copy_from_user() buffer size is not provably correct presumably due to buf_size being signed causing GCC to fail to see that buf_size can't become negative. Cc: Liam Girdwood Cc: Mark Brown Signed-off-by: Stephen Boyd --- sound/soc/soc-core.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d8562ce..e8a0f64 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -242,7 +242,7 @@ static ssize_t codec_reg_write_file(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { char buf[32]; - int buf_size; + size_t buf_size; char *start = buf; unsigned long reg, value; int step = 1; -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.