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SubjectRe: [PATCH 2/4] kbuild: remove redundant $(wildcard ...) for cmd_files calculation
Hi,

On Thu, Nov 9, 2017 at 7:41 AM, Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
> I do not why $(wildcard ...) needs to be called twice for computing
> cmd_files. Remove the first one.

I tried and I can't find any reason for the two calls $(wildcard ...)
either, so this seems fine to me.


> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
>
> Makefile | 3 +--
> scripts/Makefile.build | 3 +--
> scripts/Makefile.headersinst | 3 +--
> scripts/Makefile.modpost | 3 +--
> 4 files changed, 4 insertions(+), 8 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index a7476e6..58dd245 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1693,8 +1693,7 @@ cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
>
> # read all saved command lines
>
> -targets := $(wildcard $(sort $(targets)))
> -cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
> +cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
>
> ifneq ($(cmd_files),)
> $(cmd_files): ; # Do not try to update included dependency files
> diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> index 061d0c3..62d5314 100644
> --- a/scripts/Makefile.build
> +++ b/scripts/Makefile.build
> @@ -583,8 +583,7 @@ FORCE:
> # optimization, we don't need to read them if the target does not
> # exist, we will rebuild anyway in that case.
>
> -targets := $(wildcard $(sort $(targets)))
> -cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
> +cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
>
> ifneq ($(cmd_files),)
> include $(cmd_files)
> diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
> index 5692d7a..2aa9181 100644
> --- a/scripts/Makefile.headersinst
> +++ b/scripts/Makefile.headersinst
> @@ -114,9 +114,8 @@ $(check-file): scripts/headers_check.pl $(output-files) FORCE
>
> endif
>
> -targets := $(wildcard $(sort $(targets)))
> cmd_files := $(wildcard \
> - $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
> + $(foreach f,$(sort $$(targets)),$(dir $(f)).$(notdir $(f)).cmd))

Did you mean the "$$" here before (targets)? At first glance it seems wrong...

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