linux-kernel - Re: [PATCH v10 04/24] coresight: add coresight prefix to barrier_pkt

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Message-ID: <010101747b07e180-4022bb44-65df-41c4-af32-1e177843c0e4-000000@us-west-2.amazonses.com>
Date:   Fri, 11 Sep 2020 02:39:08 +0000
From:   Tingwei Zhang <tingweiz@...eaurora.org>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     Tingwei Zhang <tingwei@...eaurora.org>, tsoni@...eaurora.org,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Kim Phillips <kim.phillips@....com>,
        Mao Jinlong <jinlmao@...eaurora.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        coresight@...ts.linaro.org, Randy Dunlap <rdunlap@...radead.org>,
        Mian Yousaf Kaukab <ykaukab@...e.de>,
        Russell King <linux@...linux.org.uk>,
        linux-kernel@...r.kernel.org, Leo Yan <leo.yan@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        Mike Leach <mike.leach@...aro.org>
Subject: Re: [PATCH v10 04/24] coresight: add coresight prefix to barrier_pkt

On Fri, Sep 11, 2020 at 06:19:18AM +0800, Mathieu Poirier wrote:
> On Fri, Aug 21, 2020 at 11:44:25AM +0800, Tingwei Zhang wrote:
> > Add coresight prefix to make it specific. It will be a export symbol.
> > 
> > Signed-off-by: Mian Yousaf Kaukab <ykaukab@...e.de>
> > Signed-off-by: Tingwei Zhang <tingwei@...eaurora.org>
> > Reviewed-by: Suzuki K Poulose <suzuki.poulose@....com>
> > Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> > ---
> >  drivers/hwtracing/coresight/coresight-etb10.c   | 2 +-
> >  drivers/hwtracing/coresight/coresight-priv.h    | 8 ++++----
> >  drivers/hwtracing/coresight/coresight-tmc-etf.c | 2 +-
> >  drivers/hwtracing/coresight/coresight.c         | 2 +-
> >  4 files changed, 7 insertions(+), 7 deletions(-)
> > 
> > diff --git a/drivers/hwtracing/coresight/coresight-etb10.c
> b/drivers/hwtracing/coresight/coresight-etb10.c
> > index 03e3f2590191..04ee9cda988d 100644
> > --- a/drivers/hwtracing/coresight/coresight-etb10.c
> > +++ b/drivers/hwtracing/coresight/coresight-etb10.c
> > @@ -525,7 +525,7 @@ static unsigned long etb_update_buffer(struct
> coresight_device *csdev,
> >  
> >  	cur = buf->cur;
> >  	offset = buf->offset;
> > -	barrier = barrier_pkt;
> > +	barrier = coresight_barrier_pkt;
> >  
> >  	for (i = 0; i < to_read; i += 4) {
> >  		buf_ptr = buf->data_pages[cur] + offset;
> > diff --git a/drivers/hwtracing/coresight/coresight-priv.h
> b/drivers/hwtracing/coresight/coresight-priv.h
> > index d801a2755432..dcb8aeb6af62 100644
> > --- a/drivers/hwtracing/coresight/coresight-priv.h
> > +++ b/drivers/hwtracing/coresight/coresight-priv.h
> > @@ -66,8 +66,8 @@ static DEVICE_ATTR_RO(name)
> >  #define coresight_simple_reg64(type, name, lo_off, hi_off)		\
> >  	__coresight_simple_func(type, NULL, name, lo_off, hi_off)
> >  
> > -extern const u32 barrier_pkt[4];
> > -#define CORESIGHT_BARRIER_PKT_SIZE (sizeof(barrier_pkt))
> > +extern const u32 coresight_barrier_pkt[4];
> > +#define CORESIGHT_BARRIER_PKT_SIZE (sizeof(coresight_barrier_pkt))
> >  
> >  enum etm_addr_type {
> >  	ETM_ADDR_TYPE_NONE,
> > @@ -104,10 +104,10 @@ struct cs_buffers {
> >  static inline void coresight_insert_barrier_packet(void *buf)
> >  {
> >  	if (buf)
> > -		memcpy(buf, barrier_pkt, CORESIGHT_BARRIER_PKT_SIZE);
> > +		memcpy(buf, coresight_barrier_pkt,
> > +				CORESIGHT_BARRIER_PKT_SIZE);
> 
> Didn't I comment on this before?
> 
Sorry for missing below comment from you, Mathieu.
Indentation problem.

I'll fix it in v11.

Thanks,
Tingwei

> >  }
> >  
> > -
> >  static inline void CS_LOCK(void __iomem *addr)
> >  {
> >  	do {
> > diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c
> b/drivers/hwtracing/coresight/coresight-tmc-etf.c
> > index 6375504ba8b0..44402d413ebb 100644
> > --- a/drivers/hwtracing/coresight/coresight-tmc-etf.c
> > +++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c
> > @@ -519,7 +519,7 @@ static unsigned long tmc_update_etf_buffer(struct
> coresight_device *csdev,
> >  
> >  	cur = buf->cur;
> >  	offset = buf->offset;
> > -	barrier = barrier_pkt;
> > +	barrier = coresight_barrier_pkt;
> >  
> >  	/* for every byte to read */
> >  	for (i = 0; i < to_read; i += 4) {
> > diff --git a/drivers/hwtracing/coresight/coresight.c
> b/drivers/hwtracing/coresight/coresight.c
> > index e9c90f2de34a..d515088cc47d 100644
> > --- a/drivers/hwtracing/coresight/coresight.c
> > +++ b/drivers/hwtracing/coresight/coresight.c
> > @@ -53,7 +53,7 @@ static struct list_head *stm_path;
> >   * beginning of the data collected in a buffer.  That way the decoder
> knows that
> >   * it needs to look for another sync sequence.
> >   */
> > -const u32 barrier_pkt[4] = {0x7fffffff, 0x7fffffff, 0x7fffffff,
> 0x7fffffff};
> > +const u32 coresight_barrier_pkt[4] = {0x7fffffff, 0x7fffffff,
> 0x7fffffff, 0x7fffffff};
> >  
> >  static int coresight_id_match(struct device *dev, void *data)
> >  {
> > -- 
> > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
> Forum,
> > a Linux Foundation Collaborative Project
> > 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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