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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: ohad@wizery.com, loic.pallardy@st.com, arnaud.pouliquen@st.com,
	s-anna@ti.com, linux-remoteproc@vger.kernel.org, corbet@lwn.net,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 01/14] remoteproc: Make core operations optional
Date: Tue, 5 May 2020 15:16:08 -0700	[thread overview]
Message-ID: <20200505221608.GA2329931@builder.lan> (raw)
In-Reply-To: <20200424200135.28825-2-mathieu.poirier@linaro.org>

On Fri 24 Apr 13:01 PDT 2020, Mathieu Poirier wrote:

> When synchronizing with a remote processor, it is entirely possible that
> the remoteproc core is not the life cycle manager.  In such a case core
> operations don't exist and should not be called.
> 

Why would the core call these functions if it knows the remote is in a
state where it doesn't need these?

Regards,
Bjorn

> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
> ---
>  drivers/remoteproc/remoteproc_internal.h | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
> index b389dc79da81..59fc871743c7 100644
> --- a/drivers/remoteproc/remoteproc_internal.h
> +++ b/drivers/remoteproc/remoteproc_internal.h
> @@ -67,7 +67,7 @@ rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...);
>  static inline
>  int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
>  {
> -	if (rproc->ops->sanity_check)
> +	if (rproc->ops && rproc->ops->sanity_check)
>  		return rproc->ops->sanity_check(rproc, fw);
>  
>  	return 0;
> @@ -76,7 +76,7 @@ int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
>  static inline
>  u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
>  {
> -	if (rproc->ops->get_boot_addr)
> +	if (rproc->ops && rproc->ops->get_boot_addr)
>  		return rproc->ops->get_boot_addr(rproc, fw);
>  
>  	return 0;
> @@ -85,7 +85,7 @@ u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
>  static inline
>  int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
>  {
> -	if (rproc->ops->load)
> +	if (rproc->ops && rproc->ops->load)
>  		return rproc->ops->load(rproc, fw);
>  
>  	return -EINVAL;
> @@ -93,7 +93,7 @@ int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
>  
>  static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
>  {
> -	if (rproc->ops->parse_fw)
> +	if (rproc->ops && rproc->ops->parse_fw)
>  		return rproc->ops->parse_fw(rproc, fw);
>  
>  	return 0;
> @@ -103,7 +103,7 @@ static inline
>  int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset,
>  		     int avail)
>  {
> -	if (rproc->ops->handle_rsc)
> +	if (rproc->ops && rproc->ops->handle_rsc)
>  		return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset,
>  					      avail);
>  
> @@ -114,7 +114,7 @@ static inline
>  struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
>  						   const struct firmware *fw)
>  {
> -	if (rproc->ops->find_loaded_rsc_table)
> +	if (rproc->ops && rproc->ops->find_loaded_rsc_table)
>  		return rproc->ops->find_loaded_rsc_table(rproc, fw);
>  
>  	return NULL;
> -- 
> 2.20.1
> 

  parent reply	other threads:[~2020-05-05 22:15 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-24 20:01 [PATCH v3 00/14] remoteproc: Add support for synchronisaton with rproc Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 01/14] remoteproc: Make core operations optional Mathieu Poirier
2020-04-28 16:18   ` Arnaud POULIQUEN
2020-04-30 19:39     ` Mathieu Poirier
2020-05-05 22:16   ` Bjorn Andersson [this message]
2020-05-08 19:09     ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 02/14] remoteproc: Introduce function rproc_alloc_internals() Mathieu Poirier
2020-05-05 22:31   ` Bjorn Andersson
2020-05-08 19:37     ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 03/14] remoteproc: Add new operation and flags for synchronistation Mathieu Poirier
2020-04-28 16:38   ` Arnaud POULIQUEN
2020-04-30 19:49     ` Mathieu Poirier
2020-05-06  0:22   ` Bjorn Andersson
2020-05-08 21:01     ` Mathieu Poirier
2020-05-14  1:32       ` Bjorn Andersson
2020-05-15 19:24         ` Mathieu Poirier
2020-05-19  0:55           ` Bjorn Andersson
2020-05-20 22:06             ` Mathieu Poirier
2020-05-21  5:21               ` Bjorn Andersson
2020-05-21 21:55                 ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 04/14] remoteproc: Refactor function rproc_boot() Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 05/14] remoteproc: Refactor function rproc_fw_boot() Mathieu Poirier
2020-05-06  0:33   ` Bjorn Andersson
2020-05-08 21:27     ` Mathieu Poirier
2020-05-14  2:10       ` Bjorn Andersson
2020-05-15 19:46         ` Mathieu Poirier
2020-05-19  0:22           ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 06/14] remoteproc: Refactor function rproc_trigger_auto_boot() Mathieu Poirier
2020-04-28 17:00   ` Arnaud POULIQUEN
2020-04-24 20:01 ` [PATCH v3 07/14] remoteproc: Introducting new start and stop functions Mathieu Poirier
2020-05-06  0:42   ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 08/14] remoteproc: Call core functions based on synchronisation flag Mathieu Poirier
2020-04-28 17:27   ` Arnaud POULIQUEN
2020-04-30 19:57     ` Mathieu Poirier
2020-05-04 11:14       ` Arnaud POULIQUEN
2020-05-05 22:10         ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 09/14] remoteproc: Deal with synchronisation when crashing Mathieu Poirier
2020-04-29  7:44   ` Arnaud POULIQUEN
2020-04-30 20:11     ` Mathieu Poirier
2020-05-06  1:01   ` Bjorn Andersson
2020-05-08 21:47     ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 10/14] remoteproc: Deal with synchronisation when shutting down Mathieu Poirier
2020-04-29  8:19   ` Arnaud POULIQUEN
2020-04-30 20:23     ` Mathieu Poirier
2020-05-04 11:34       ` Arnaud POULIQUEN
2020-05-05 22:03         ` Mathieu Poirier
2020-05-06  7:51           ` Arnaud POULIQUEN
2020-05-06  1:10   ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 11/14] remoteproc: Deal with synchronisation when changing FW image Mathieu Poirier
2020-04-29  8:52   ` Arnaud POULIQUEN
2020-04-30 20:32     ` Mathieu Poirier
2020-05-06  1:27   ` Bjorn Andersson
2020-04-24 20:01 ` [PATCH v3 12/14] remoteproc: Introducing function rproc_set_state_machine() Mathieu Poirier
2020-04-29  9:22   ` Arnaud POULIQUEN
2020-04-29 14:38     ` Arnaud POULIQUEN
2020-04-30 20:51       ` Mathieu Poirier
2020-05-04 12:00         ` Arnaud POULIQUEN
2020-04-30 20:42     ` Mathieu Poirier
2020-05-04 11:57       ` Arnaud POULIQUEN
2020-05-05 21:43         ` Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 13/14] remoteproc: Document " Mathieu Poirier
2020-04-24 20:01 ` [PATCH v3 14/14] remoteproc: Expose synchronisation flags via debugfs Mathieu Poirier
2020-05-18 13:28 ` [PATCH v3 00/14] remoteproc: Add support for synchronisaton with rproc Peng Fan
2020-05-18 16:29   ` Mathieu Poirier

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