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

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Message-ID: <CA+icZUV9waE16ZW4RNEDeiemv6eRd=MetzdGbF-vpfT_u1N4_w@mail.gmail.com>
Date:   Thu, 28 Jul 2022 10:01:52 +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 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.

Regards,
-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
>