From: Greg KH <gregkh@linuxfoundation.org>
To: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: stable@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Ian Rogers <irogers@google.com>, Jiri Olsa <jolsa@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Tom Rix <trix@redhat.com>,
"open list:PERFORMANCE EVENTS SUBSYSTEM"
<linux-perf-users@vger.kernel.org>,
"open list:PERFORMANCE EVENTS SUBSYSTEM"
<linux-kernel@vger.kernel.org>,
"open list:BPF [MISC]" <bpf@vger.kernel.org>,
"open list:CLANG/LLVM BUILD SUPPORT" <llvm@lists.linux.dev>,
bcm-kernel-feedback-list@broadcom.com
Subject: Re: [PATCH stable 6.1 v2 5/5] perf build: Remove -Wno-unused-but-set-variable from the flex flags when building with clang < 13.0.0
Date: Tue, 16 Jun 2026 17:29:03 +0530 [thread overview]
Message-ID: <2026061608-monorail-thread-bb53@gregkh> (raw)
In-Reply-To: <20260520163320.3073037-6-florian.fainelli@broadcom.com>
On Wed, May 20, 2026 at 09:33:20AM -0700, Florian Fainelli wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> clang < 13.0.0 doesn't grok -Wno-unused-but-set-variable, so just remove
> it to avoid:
>
> error: unknown warning option '-Wno-unused-but-set-variable'; did you mean '-Wno-unused-const-variable'? [-Werror,-Wunknown-warning-option]
> make[4]: *** [/git/perf-6.5.0-rc4/tools/build/Makefile.build:128: /tmp/build/perf/util/pmu-flex.o] Error 1
> make[4]: *** Waiting for unfinished jobs....
>
> Fixes: ddc8e4c966923ad1 ("perf build: Disable fewer bison warnings")
> Cc: Adrian Hunter <adrian.hunter@intel.com>
> Cc: Ian Rogers <irogers@google.com>
> Cc: Jiri Olsa <jolsa@kernel.org>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Link: https://lore.kernel.org/lkml/ZNUSWr52jUnVaaa%2F@kernel.org/
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
> ---
> tools/perf/util/Build | 20 +++++++++++++++++---
> 1 file changed, 17 insertions(+), 3 deletions(-)
>
Oops, no upstream git id? What is it?
thanks,
greg k-h
prev parent reply other threads:[~2026-06-16 12:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 16:33 [PATCH stable 6.1 v2 0/5] perf build fixes Florian Fainelli
2026-05-20 16:33 ` [PATCH stable 6.1 v2 1/5] perf build: Conditionally define NDEBUG Florian Fainelli
2026-05-20 16:33 ` [PATCH stable 6.1 v2 2/5] perf parse-events: Make YYDEBUG dependent on doing a debug build Florian Fainelli
2026-05-20 16:33 ` [PATCH stable 6.1 v2 3/5] perf build: Disable fewer bison warnings Florian Fainelli
2026-05-20 16:33 ` [PATCH stable 6.1 v2 4/5] tools build: Add 3-component logical version comparators Florian Fainelli
2026-05-20 16:33 ` [PATCH stable 6.1 v2 5/5] perf build: Remove -Wno-unused-but-set-variable from the flex flags when building with clang < 13.0.0 Florian Fainelli
2026-05-20 16:35 ` Florian Fainelli
2026-06-16 10:12 ` Greg KH
2026-06-16 11:59 ` Greg KH [this message]
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