[PATCH] sound: stm32: replace "%p" with "%pK"

[PATCH] sound: stm32: replace "%p" with "%pK"

[Benjamin Gaignard]

The format specifier "%p" can leak kernel addresses.
Use "%pK" instead.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
---
 sound/soc/stm/stm32_adfsdm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index db73fef3e500..0e9373064032 100644
--- a/sound/soc/stm/stm32_adfsdm.c
+++ b/sound/soc/stm/stm32_adfsdm.c
@@ -149,7 +149,7 @@ static int stm32_afsdm_pcm_cb(const void *data, size_t size, void *private)
 	unsigned int old_pos = priv->pos;
 	unsigned int cur_size = size;
 
-	dev_dbg(rtd->dev, "%s: buff_add :%p, pos = %d, size = %zu\n",
+	dev_dbg(rtd->dev, "%s: buff_add :%pK, pos = %d, size = %zu\n",
 		__func__, &pcm_buff[priv->pos], priv->pos, size);
 
 	if ((priv->pos + size) > buff_size) {
-- 
2.15.0

Re: [PATCH] sound: stm32: replace "%p" with "%pK"

[Takashi Iwai]

On Fri, 06 Jul 2018 15:07:03 +0200,
Benjamin Gaignard wrote:
> 
> The format specifier "%p" can leak kernel addresses.
> Use "%pK" instead.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>

The code change itself is OK (apart from the subject prefix to be
"ASoC").  But do we really want to patch manually every single place
like this?  There are thousands of files using '%p'.


thanks,

Takashi

Re: [PATCH] sound: stm32: replace "%p" with "%pK"

[Benjamin Gaignard]

2018-07-06 16:59 GMT+02:00 Takashi Iwai <tiwai@suse.de>:
> On Fri, 06 Jul 2018 15:07:03 +0200,
> Benjamin Gaignard wrote:
>>
>> The format specifier "%p" can leak kernel addresses.
>> Use "%pK" instead.
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
>
> The code change itself is OK (apart from the subject prefix to be
> "ASoC").  But do we really want to patch manually every single place
> like this?  There are thousands of files using '%p'.

I have limited myself to the few remaining %p in STM32 architecture.

>
>
> thanks,
>
> Takashi

Applied "ASoC: stm32: replace "%p" with "%pK"" to the asoc tree

[Mark Brown]

The patch

   ASoC: stm32: replace "%p" with "%pK"

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 8db339d66774821091f73bd0e57c8a7511c5988e Mon Sep 17 00:00:00 2001
From: "benjamin.gaignard@linaro.org" <benjamin.gaignard@linaro.org>
Date: Fri, 6 Jul 2018 15:07:03 +0200
Subject: [PATCH] ASoC: stm32: replace "%p" with "%pK"

The format specifier "%p" can leak kernel addresses.
Use "%pK" instead.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/stm/stm32_adfsdm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index db73fef3e500..0e9373064032 100644
--- a/sound/soc/stm/stm32_adfsdm.c
+++ b/sound/soc/stm/stm32_adfsdm.c
@@ -149,7 +149,7 @@ static int stm32_afsdm_pcm_cb(const void *data, size_t size, void *private)
 	unsigned int old_pos = priv->pos;
 	unsigned int cur_size = size;
 
-	dev_dbg(rtd->dev, "%s: buff_add :%p, pos = %d, size = %zu\n",
+	dev_dbg(rtd->dev, "%s: buff_add :%pK, pos = %d, size = %zu\n",
 		__func__, &pcm_buff[priv->pos], priv->pos, size);
 
 	if ((priv->pos + size) > buff_size) {
-- 
2.18.0.rc2