diff mbox

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

Message ID 1510242077-8122-3-git-send-email-yamada.masahiro@socionext.com (mailing list archive)
State New, archived
Headers show

Commit Message

Masahiro Yamada Nov. 9, 2017, 3:41 p.m. UTC
I do not why $(wildcard ...) needs to be called twice for computing
cmd_files.  Remove the first one.

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(-)

Comments

Doug Anderson Nov. 10, 2017, 4:53 a.m. UTC | #1
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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Masahiro Yamada Nov. 10, 2017, 4:55 a.m. UTC | #2
2017-11-10 13:53 GMT+09:00 Doug Anderson <dianders@chromium.org>:
> 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...


Good catch!
I will fix this.

Thanks!
diff mbox

Patch

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))
 
 ifneq ($(cmd_files),)
 	include $(cmd_files)
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 16923ba..cf125c1 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -143,8 +143,7 @@  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)