Subject: Re: [PATCH net-next v2 03/11] doc/netlink: Regenerate netlink .rst files if ynl-gen-rst changes

From: Breno Leitao <[email-masked]>
Date: Tue, 12 Dec 2023 12:39:35 -0800

On Mon, Dec 11, 2023 at 04:40:31PM +0000, Donald Hunter wrote:
> Add ynl-gen-rst.py to the dependencies for the netlink .rst files in the
> doc Makefile so that the docs get regenerated if the ynl-gen-rst.py
> script is modified.
> 
> Signed-off-by: Donald Hunter <[email-masked]>
> ---
>  Documentation/Makefile | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/Makefile b/Documentation/Makefile
> index 5c156fbb6cdf..9a31625ea1ff 100644
> --- a/Documentation/Makefile
> +++ b/Documentation/Makefile
> @@ -105,11 +105,12 @@ YNL_TOOL:=$(srctree)/tools/net/ynl/ynl-gen-rst.py
>  YNL_RST_FILES_TMP := $(patsubst %.yaml,%.rst,$(wildcard $(YNL_YAML_DIR)/*.yaml))
>  YNL_RST_FILES := $(patsubst $(YNL_YAML_DIR)%,$(YNL_RST_DIR)%, $(YNL_RST_FILES_TMP))
>  
> -$(YNL_INDEX): $(YNL_RST_FILES)
> +$(YNL_INDEX): $(YNL_RST_FILES) $(YNL_TOOL)
>  	@$(YNL_TOOL) -o $@ -x
>  
> -$(YNL_RST_DIR)/%.rst: $(YNL_YAML_DIR)/%.yaml
> -	@$(YNL_TOOL) -i $< -o $@

> +$(YNL_RST_DIR)/%.rst: $(YNL_TOOL)
> +$(YNL_RST_DIR)/%.rst: $(YNL_YAML_DIR)/%.yaml $(YNL_TOOL)
> +	$(YNL_TOOL) -i $< -o $@

Why do you need both lines here? Isn't the last line enough?

	$(YNL_RST_DIR)/%.rst: $(YNL_YAML_DIR)/%.yaml $(YNL_TOOL)