linux-kernel - Re: [PATCH V2] rtla: Fix Makefile when called from -C tools/

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Message-ID: <CA+icZUX2v-u8tL-U73hZJ0nNHXJ6XQYPupTRBV9QaQN88OF2bw@mail.gmail.com>
Date:   Thu, 28 Jul 2022 10:15:34 +0200
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Daniel Bristot de Oliveira <bristot@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-trace-devel@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH V2] rtla: Fix Makefile when called from -C tools/

On Thu, Jul 28, 2022 at 10:01 AM Sedat Dilek <sedat.dilek@...il.com> wrote:
>
> On Wed, Jul 13, 2022 at 11:32 PM Daniel Bristot de Oliveira
> <bristot@...nel.org> wrote:
> >
> > Sedat Dilek reported an error on rtla Makefile when running:
> >
> >     $ make -C tools/ clean
> >     [...]
> >     make[2]: Entering directory
> >     '/home/dileks/src/linux-kernel/git/tools/tracing/rtla'
> >     [...]
> >     '/home/dileks/src/linux-kernel/git/Documentation/tools/rtla'
> >     /bin/sh: 1: test: rtla-make[2]:: unexpected operator    <------ The problem
> >     rm: cannot remove '/home/dileks/src/linux-kernel/git': Is a directory
> >     make[2]: *** [Makefile:120: clean] Error 1
> >     make[2]: Leaving directory
> >
> > This occurred because the rtla calls kernel's Makefile to get the
> > version in silence mode, e.g.,
> >
> >     $ make -sC ../../.. kernelversion
> >     5.19.0-rc4
> >
> > But the -s is being ignored when rtla's makefile is called indirectly,
> > so the output looks like this:
> >
> >     $ make -C ../../.. kernelversion
> >     make: Entering directory '/root/linux'
> >     5.19.0-rc4
> >     make: Leaving directory '/root/linux'
> >
> > Using 'grep -v make' avoids this problem, e.g.,
> >
> >     $ make -C ../../.. kernelversion | grep -v make
> >     5.19.0-rc4
> >
> > Thus, add | grep -v make.
> >
> > Cc: Steven Rostedt <rostedt@...dmis.org>
> > Fixes: 8619e32825fd ("rtla: Follow kernel version")
> > Reported-by: Sedat Dilek <sedat.dilek@...il.com>
> > Tested-by: Sedat Dilek <sedat.dilek@...il.com>
> > Signed-off-by: Daniel Bristot de Oliveira <bristot@...nel.org>
>
> Hi,
>
> what is the status of this patch?
>
> Is it missing some ACKs e.g. from Steven?
>
> Can this go directly to Linus tree as I wanted to see it in Linux v5.19 FINAL?
>
> Thanks.
>

INFO:

Steven's autoresponder says:

I'm currently traveling and may be slow to respond (and may not at all).
I'll be back at my normal hours on Tuesday, Aug 2nd.

Here the lore-link to v2:

[1] https://lore.kernel.org/all/870c02d4d97a921f02a31fa3b229fc549af61a20.1657747763.git.bristot@kernel.org/

-Sedat-

>
> > ---
> >  tools/tracing/rtla/Makefile | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/tools/tracing/rtla/Makefile b/tools/tracing/rtla/Makefile
> > index 3822f4ea5f49..1bea2d16d4c1 100644
> > --- a/tools/tracing/rtla/Makefile
> > +++ b/tools/tracing/rtla/Makefile
> > @@ -1,6 +1,6 @@
> >  NAME   :=      rtla
> >  # Follow the kernel version
> > -VERSION :=     $(shell cat VERSION 2> /dev/null || make -sC ../../.. kernelversion)
> > +VERSION :=     $(shell cat VERSION 2> /dev/null || make -sC ../../.. kernelversion | grep -v make)
> >
> >  # From libtracefs:
> >  # Makefiles suck: This macro sets a default value of $(2) for the
> > --
> > 2.32.0
> >