From patchwork Wed Sep 11 01:09:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongbo Li X-Patchwork-Id: 13799581 Received: from szxga05-in.huawei.com (szxga05-in.huawei.com [45.249.212.191]) (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 78BBC15E97 for ; Wed, 11 Sep 2024 01:00:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.191 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726016431; cv=none; b=bDV+bp0HGgMYH4vtOMlYv6jtzVHDZTRznHhkGoGGE7O+/6eshXyT/c+vw7xcQjaOfE5rpkwM+j8UzolHh47HjaU7zw6RJIeBrxckXpu1kytTVRZg+E3bBJL26hF/GwvJg/Pitgj0bsnj36PG5o51uL+5+FpgXrjDNsIJoqz5u0o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726016431; c=relaxed/simple; bh=icfjwaa59iJXzHh1lW5ITzv5CyJArTejPAfKv5/BtHI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=F34Q1zdybBzzKRo2dv0CqIMXSqnp169gWkHtFNhZbcDw7A67J+P60ZYrj47d2LDqgBNKh05ZmB65GpV+Xe+XPAJlfErEn37iZVBHIzf4oDKXoufhurLzVPzAGZl+qcQ4CYu0jg1NtNyZhloPc2E+RMs3DeWPwrwAp+02+SbAt4U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.191 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.214]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4X3MbS1g5hz1HJWW; Wed, 11 Sep 2024 08:56:52 +0800 (CST) Received: from dggpeml500022.china.huawei.com (unknown [7.185.36.66]) by mail.maildlp.com (Postfix) with ESMTPS id EB32E1A0170; Wed, 11 Sep 2024 09:00:26 +0800 (CST) Received: from huawei.com (10.90.53.73) by dggpeml500022.china.huawei.com (7.185.36.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Wed, 11 Sep 2024 09:00:26 +0800 From: Hongbo Li To: , , , CC: , Subject: [PATCH -next v3 03/10] coccinelle: Add rules to find str_hi{gh}_lo{w}() replacements Date: Wed, 11 Sep 2024 09:09:20 +0800 Message-ID: <20240911010927.741343-4-lihongbo22@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240911010927.741343-1-lihongbo22@huawei.com> References: <20240911010927.741343-1-lihongbo22@huawei.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpeml500022.china.huawei.com (7.185.36.66) As other rules done, we add rules for str_hi{gh}_lo{w}() to check the relative opportunities. Signed-off-by: Hongbo Li --- scripts/coccinelle/api/string_choices.cocci | 42 +++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/scripts/coccinelle/api/string_choices.cocci b/scripts/coccinelle/api/string_choices.cocci index c3c5bc94fab0..7c631fd8abe2 100644 --- a/scripts/coccinelle/api/string_choices.cocci +++ b/scripts/coccinelle/api/string_choices.cocci @@ -123,3 +123,45 @@ e << str_false_true_r.E; @@ coccilib.report.print_report(p[0], "opportunity for str_false_true(%s)" % e) + +@str_hi_lo depends on patch@ +expression E; +@@ +( +- ((E) ? "hi" : "lo") ++ str_hi_lo(E) +) + +@str_hi_lo_r depends on !patch exists@ +expression E; +position P; +@@ +( +* ((E@P) ? "hi" : "lo") +) + +@script:python depends on report@ +p << str_hi_lo_r.P; +e << str_hi_lo_r.E; +@@ + +coccilib.report.print_report(p[0], "opportunity for str_hi_lo(%s)" % e) + +@str_high_low depends on patch@ +expression E; +@@ +- ((E) ? "high" : "low") ++ str_high_low(E) + +@str_high_low_r depends on !patch exists@ +expression E; +position P; +@@ +* ((E@P) ? "high" : "low") + +@script:python depends on report@ +p << str_high_low_r.P; +e << str_high_low_r.E; +@@ + +coccilib.report.print_report(p[0], "opportunity for str_high_low(%s)" % e)