Re: [PATCH v3] driver core: Add CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Fri, Mar 17, 2023 at 10:19:42AM -0700, Saravana Kannan wrote:
> Add a build time equivalent of fw_devlink.sync_state=timeout so that
> board specific kernels could enable it and not have to deal with setting
> or cluttering the kernel commandline.
> 
> Cc: Doug Anderson <dianders@chromium.org>
> Signed-off-by: Saravana Kannan <saravanak@google.com>
> ---
>  drivers/base/Kconfig | 12 ++++++++++++
>  drivers/base/core.c  |  5 +++++
>  2 files changed, 17 insertions(+)
> 
> diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
> index 6f04b831a5c0..2b8fd6bb7da0 100644
> --- a/drivers/base/Kconfig
> +++ b/drivers/base/Kconfig
> @@ -230,4 +230,16 @@ config GENERIC_ARCH_NUMA
>  	  Enable support for generic NUMA implementation. Currently, RISC-V
>  	  and ARM64 use it.
>  
> +config FW_DEVLINK_SYNC_STATE_TIMEOUT
> +	bool "sync_state() behavior defaults to timeout instead of strict"
> +	help
> +	  This is build time equivalent of adding kernel command line parameter
> +	  "fw_devlink.sync_state=timeout". Give up waiting on consumers and
> +	  call sync_state() on any devices that haven't yet received their
> +	  sync_state() calls after deferred_probe_timeout has expired or by
> +	  late_initcall() if !CONFIG_MODULES. You should almost always want to
> +	  select N here unless you have already successfully tested with the
> +	  command line option on every system/board your kernel is expected to
> +	  work on.
> +
>  endmenu
> diff --git a/drivers/base/core.c b/drivers/base/core.c
> index fe74a786e2c3..adc81871829f 100644
> --- a/drivers/base/core.c
> +++ b/drivers/base/core.c
> @@ -1672,7 +1672,12 @@ early_param("fw_devlink.strict", fw_devlink_strict_setup);
>  #define FW_DEVLINK_SYNC_STATE_STRICT	0
>  #define FW_DEVLINK_SYNC_STATE_TIMEOUT	1
>  
> +#ifndef CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT
>  static int fw_devlink_sync_state;
> +#else
> +static int fw_devlink_sync_state = FW_DEVLINK_SYNC_STATE_TIMEOUT;
> +#endif
> +
>  static int __init fw_devlink_sync_state_setup(char *arg)
>  {
>  	if (!arg)
> -- 
> 2.40.0.rc2.332.ga46443480c-goog
> 

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
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created.  Hopefully you will not take offence and will fix the problem
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