From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A89DB665; Sun, 22 Feb 2026 17:17:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771780655; cv=none; b=dUbyTEMzHD5QGfM9EHS12wOAgPUX7d+NAiw9YZ1r9j2l1U98hXTO6EjEyL7SNCH5bV2L+G1AOuQH62zKNll47C9SUEWWZtXdN+wudzBmikh769GJfBFbYAg62RbUtlloZ8/zcmajU9Up6nDvspfWONev/In/4mAOqNlO3xR5auc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771780655; c=relaxed/simple; bh=V5bRob9/WFKeD7nCmjCkNdekw7Nf2CKVtztVEOWUWyc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eYAqThCj5LWfje7UkZHBGN0zEP6KWld7OqQXC4hS52NL+/ytB1ktW1+YOBU983cwysrM+Xm0dKUxKAiV9EGa5FEPxxl7NBjFifQAbnIEz8nJ1mX1lAdotkQPFGBVEzdy7pHSGVJkDpUXy4VMqSCpn5EkAWRsdPN4ooKZxtp+lMQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=trX7jf1o; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="trX7jf1o" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93B7AC116D0; Sun, 22 Feb 2026 17:17:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771780654; bh=V5bRob9/WFKeD7nCmjCkNdekw7Nf2CKVtztVEOWUWyc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=trX7jf1oD1hXloPLUzVJd6RxxPWMZtlIjU6Dp+X4L+dklnbzuzWSm2NCaclH4ebAd U4jcDd510hbSLjpLLG8AqK+kk9oEwlBV6a5NGDnmWw+pZPZV8lbyPOOkc+tG/EdBG4 yr79rOzU7MPG+q2DGn8ScE9eJKMjBm3rAL11zmxs5+CXft1GZ3ADM/+EwZdmFiX1vc rpckYbylYWTtTJEwvxsckkufKmH6ykfsDFiymuJt8dGMxgCdkls963lhCxsI9UzFGw tqwV8NsiI3NXHGwLhCbMuB/jfeknuNh8ZIaxYeJvQ0gDVi1ZwIQVbZDjLlBeAbn7Vs 2/b191wnxwF0g== From: SeongJae Park To: kernel test robot Cc: SeongJae Park , oe-kbuild-all@lists.linux.dev, damon@lists.linux.dev Subject: Re: [sj:damon/next 30/144] mm/damon/core.c:1693:25: warning: zero-length gnu_printf format string Date: Sun, 22 Feb 2026 09:17:26 -0800 Message-ID: <20260222171727.133222-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <202602221352.odZW8x1R-lkp@intel.com> References: Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Sun, 22 Feb 2026 13:48:19 +0800 kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/sj/linux.git damon/next > head: 4ac50a8b182685ab2e9f2ff9411ce5c0ef3af0ac > commit: ebbed03fc342824e63925232c8dc4ea55e54e2a3 [30/144] mm/damon/core: add damon_reset_aggregated() debug_sanity check > config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20260222/202602221352.odZW8x1R-lkp@intel.com/config) > compiler: m68k-linux-gcc (GCC) 15.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260222/202602221352.odZW8x1R-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-kbuild-all/202602221352.odZW8x1R-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > In file included from arch/m68k/include/asm/bug.h:32, > from include/linux/bug.h:5, > from include/linux/thread_info.h:13, > from include/asm-generic/preempt.h:5, > from ./arch/m68k/include/generated/asm/preempt.h:1, > from include/linux/preempt.h:79, > from arch/m68k/include/asm/processor.h:11, > from include/linux/sched.h:13, > from include/linux/cgroup.h:12, > from include/linux/memcontrol.h:13, > from include/linux/damon.h:11, > from mm/damon/core.c:10: > mm/damon/core.c: In function 'damon_verify_reset_aggregated': > >> mm/damon/core.c:1693:25: warning: zero-length gnu_printf format string [-Wformat-zero-length] > 1693 | WARN_ONCE(true, ""); > | ^~ > include/asm-generic/bug.h:142:62: note: in definition of macro '__WARN_printf' > 142 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ > | ^~~ > include/linux/once_lite.h:31:25: note: in expansion of macro 'WARN' > 31 | func(__VA_ARGS__); \ > | ^~~~ > include/asm-generic/bug.h:185:9: note: in expansion of macro 'DO_ONCE_LITE_IF' > 185 | DO_ONCE_LITE_IF(condition, WARN, 1, format) > | ^~~~~~~~~~~~~~~ > mm/damon/core.c:1693:9: note: in expansion of macro 'WARN_ONCE' > 1693 | WARN_ONCE(true, ""); > | ^~~~~~~~~ Thank you for this report! I just pushed a fix to damon/next. Thanks, SJ [...]