From nobody Sun Feb 8 18:10:44 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 2931F15688F for ; Fri, 31 May 2024 09:05:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717146310; cv=none; b=IhytyJuRWMGwXx6ns5NJ3kpyl4OF6SSt4vo311Th7lNkq7GyBS3IsIPnBNsLyHVvjLKYwVr1UILsz4dtwm4YKYV6XFvFAxUP57hOcWHAKqx4rJhs54SzgRpBOPDTl9+A4AnZ8n0qKpt3s3RjPCZMNzHEqZJljzrIXoS0Pk33Q9Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717146310; c=relaxed/simple; bh=HC/iebU12r4tuo/bQ21zBgXZmHDhLCixcZMw3ZfNxMQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=r+zl1rkDvuh6osmouKY6Ak8GB9uho5j53JUAdlT6f+3pDHT80y+oTYgxZaJ5Vj0JZdalNs/kCaOd+HNrhfphXujuio5wttffiQkSWTTZJn6xrHfKPkuu2tSLc7HclSm81IKjPYSeYjr7bi7iG8KS/rIhM0ZPDE74tDxpi+6/eW4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=d22hFSf2; arc=none smtp.client-ip=192.198.163.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="d22hFSf2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717146309; x=1748682309; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HC/iebU12r4tuo/bQ21zBgXZmHDhLCixcZMw3ZfNxMQ=; b=d22hFSf2iS5fBGIGn47z3rCR8Um2WnPfY9nQhkwf17jzo7zaySgkvsZM gmcwI45sNioMlWaixXk3Im7JrbZIKhILaD0ifLTSpXT6c/asZUj9QVvGV KNoPU3T3vAuUSRMq7a56CjaBxlDe0pdyqsalA/CnQgh8XV8xFF47zRlri OGROJooiKxxiz4qCKWrnEP6T6hkeUG5Uyysmme2Y5pL2m4BN9Fx75eyxh AdGovE9jJ3Qbud2hdtx18brtMBlVu930Jlsjeh9l/VStVU+SnOppBmrg1 4yAjXt7xXe3RyChWKuGGp36QqMmvIeTcyJt0m+lHatABZ9hhUhv9sNo/u w==; X-CSE-ConnectionGUID: X5+ftijOQCKGsg+ZWGK2mw== X-CSE-MsgGUID: qE+2nOELRl68D3as+2gMcg== X-IronPort-AV: E=McAfee;i="6600,9927,11088"; a="39074066" X-IronPort-AV: E=Sophos;i="6.08,203,1712646000"; d="scan'208";a="39074066" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2024 02:05:09 -0700 X-CSE-ConnectionGUID: m9Gq5WLzSc2KPusanhgQ+g== X-CSE-MsgGUID: sbEKQx1WTJCQaLM+lOXRqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,203,1712646000"; d="scan'208";a="40543234" Received: from bergbenj-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.246.190]) by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2024 02:05:07 -0700 From: Jani Nikula To: linux-kernel@vger.kernel.org Cc: jani.nikula@intel.com, Andrew Morton , Greg KH Subject: [PATCH 1/4] kernel/panic: return early from print_tainted() when not tainted Date: Fri, 31 May 2024 12:04:54 +0300 Message-Id: <01d6c03de1c9d1b52b59c652a3704a0a9886ed63.1717146197.git.jani.nikula@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Reduce indent to make follow-up changes slightly easier on the eyes. Cc: Andrew Morton Cc: Greg KH Signed-off-by: Jani Nikula Reviewed-by: Greg Kroah-Hartman --- kernel/panic.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/kernel/panic.c b/kernel/panic.c index 6df2ba08d5ae..5c9396418e1c 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -508,22 +508,23 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT= ] =3D { const char *print_tainted(void) { static char buf[TAINT_FLAGS_COUNT + sizeof("Tainted: ")]; + char *s; + int i; =20 BUILD_BUG_ON(ARRAY_SIZE(taint_flags) !=3D TAINT_FLAGS_COUNT); =20 - if (tainted_mask) { - char *s; - int i; - - s =3D buf + sprintf(buf, "Tainted: "); - for (i =3D 0; i < TAINT_FLAGS_COUNT; i++) { - const struct taint_flag *t =3D &taint_flags[i]; - *s++ =3D test_bit(i, &tainted_mask) ? - t->c_true : t->c_false; - } - *s =3D 0; - } else + if (!tainted_mask) { snprintf(buf, sizeof(buf), "Not tainted"); + return buf; + } + + s =3D buf + sprintf(buf, "Tainted: "); + for (i =3D 0; i < TAINT_FLAGS_COUNT; i++) { + const struct taint_flag *t =3D &taint_flags[i]; + *s++ =3D test_bit(i, &tainted_mask) ? + t->c_true : t->c_false; + } + *s =3D 0; =20 return buf; } --=20 2.39.2