Patch "perf build: Conditionally define NDEBUG" has been added to the 6.1-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    perf build: Conditionally define NDEBUG

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     perf-build-conditionally-define-ndebug.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From stable+bounces-250203-greg=kroah.com@vger.kernel.org Wed May 20 22:29:26 2026
From: Florian Fainelli <florian.fainelli@broadcom.com>
Date: Wed, 20 May 2026 09:33:16 -0700
Subject: perf build: Conditionally define NDEBUG
To: stable@vger.kernel.org
Cc: Ian Rogers <irogers@google.com>, Adrian Hunter <adrian.hunter@intel.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Ingo Molnar <mingo@redhat.com>, Jiri Olsa <jolsa@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Namhyung Kim <namhyung@kernel.org>, Paolo Bonzini <pbonzini@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Sean Christopherson <seanjc@google.com>, Arnaldo Carvalho de Melo <acme@redhat.com>, Florian Fainelli <florian.fainelli@broadcom.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Nathan Chancellor <nathan@kernel.org>, Nick Desaulniers <ndesaulniers@google.com>, Tom Rix <trix@redhat.com>, linux-perf-users@vger.kernel.org (open list:PERFORMANCE EVENTS SUBSYSTEM), linux-kernel@vger.kernel.org (open list:PERFORMANCE EVENTS SUBSYSTEM), bpf@vger.kernel.org (open list:BPF [MISC]), llvm@lists.linux.dev (open list:CLANG/LLVM BUILD SUPPORT), bcm-kernel-feedback-list@broadcom.com
Message-ID: <20260520163320.3073037-2-florian.fainelli@broadcom.com>

From: Ian Rogers <irogers@google.com>

commit 616b14b47a86d880ba21a363440f20f82152d8f2 upstream

When a build is done without DEBUG=1 then define NDEBUG. This will
compile out asserts and other debug code.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20230330183827.1412303-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/Makefile.config |    1 +
 1 file changed, 1 insertion(+)

--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -228,6 +228,7 @@ ifndef DEBUG
 endif
 
 ifeq ($(DEBUG),0)
+CORE_CFLAGS += -DNDEBUG=1
 ifeq ($(CC_NO_CLANG), 0)
   CORE_CFLAGS += -O3
 else


Patches currently in stable-queue which might be from florian.fainelli@broadcom.com are

queue-6.1/perf-build-remove-wno-unused-but-set-variable-from-the-flex-flags-when-building-with-clang-13.0.0.patch
queue-6.1/perf-build-conditionally-define-ndebug.patch
queue-6.1/perf-parse-events-make-yydebug-dependent-on-doing-a-debug-build.patch
queue-6.1/perf-build-disable-fewer-bison-warnings.patch
queue-6.1/tools-build-add-3-component-logical-version-comparators.patch