linux-kernel - Re: [PATCH] selftests: Makefile: create OUTPUT dir

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Message-ID: <20240920123827.715ff109@kernel.org>
Date: Fri, 20 Sep 2024 12:38:27 +0200
From: Jakub Kicinski <kuba@...nel.org>
To: Shuah Khan <skhan@...uxfoundation.org>
Cc: Anders Roxell <anders.roxell@...aro.org>, shuah@...nel.org,
 willemb@...gle.com, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests: Makefile: create OUTPUT dir

On Thu, 19 Sep 2024 09:51:47 -0600 Shuah Khan wrote:
> > @@ -261,6 +261,7 @@ ifdef INSTALL_PATH
> >   	@ret=1;	\
> >   	for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do \
> >   		BUILD_TARGET=$$BUILD/$$TARGET;	\
> > +		mkdir -p $$BUILD_TARGET;	\
> >   		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install \
> >   				INSTALL_PATH=$(INSTALL_PATH)/$$TARGET \
> >   				SRC_PATH=$(shell readlink -e $$(pwd)) \  
> 
> Doesn't the "all" target mkdir work for this case? Why do we need another mkdir here?

I was wondering about that, too. Looks like the code from the all
target is copy/pasted in the install target except the mkdir line.
Best fix would be to make the dependency work, I don't understand
why it doesn't already, tho.