From patchwork Thu Aug 22 13:39:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773412 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (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 335091C9449; Thu, 22 Aug 2024 13:31:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333497; cv=none; b=AacUDuRgN3Lej+XCW4+BRdsazbOUS8CX6f72hIyj/wXfDb51UO+guhn3gX+cWvarPzO3ARxBRd6icACqiaHb5T2wc3IrCNFiXDMAPUvvZpWV0r0hn5jyuP9D3BICO1CZK7sn6Acj3+4pDeTAtOw6oGkrwyeD9hMZ/D5ta6Qv3sY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333497; c=relaxed/simple; bh=dOiaHvnaJZLdD5pe9zasHOzpCN3wlvpWVlFHVL2FAoI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=YEro0aHcmt2MVs+JKywoM7jHMP4o6th1Ap3B9Q2vTUm+IeEKkz1M/ZcTg6KGtydF2h6x7/mdu+zxgcF1fcvgpi+/T1iS+lHhmnV2DUnb5tzbFEfvs/HH3u3wB7ljrOWcF7aHxB3Henc9is7YJU5cn09KO10mSMNi2DRltn0Y72E= 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=45.249.212.189 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 [172.19.88.105]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4WqPB06mn8z69Mv; Thu, 22 Aug 2024 21:26:48 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 3F3B3140109; Thu, 22 Aug 2024 21:31:32 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:31 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 1/8] atm: use min() to simplify the code Date: Thu, 22 Aug 2024 21:39:01 +0800 Message-ID: <20240822133908.1042240-2-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) When copying data to user, it needs to determine the copy length. It is easier to understand using min() here. Signed-off-by: Li Zetao --- net/atm/addr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/atm/addr.c b/net/atm/addr.c index 0530b63f509a..6c4c942b2cb9 100644 --- a/net/atm/addr.c +++ b/net/atm/addr.c @@ -136,7 +136,7 @@ int atm_get_addr(struct atm_dev *dev, struct sockaddr_atmsvc __user * buf, unsigned long flags; struct atm_dev_addr *this; struct list_head *head; - int total = 0, error; + size_t total = 0, error; struct sockaddr_atmsvc *tmp_buf, *tmp_bufp; spin_lock_irqsave(&dev->lock, flags); @@ -155,7 +155,7 @@ int atm_get_addr(struct atm_dev *dev, struct sockaddr_atmsvc __user * buf, memcpy(tmp_bufp++, &this->addr, sizeof(struct sockaddr_atmsvc)); spin_unlock_irqrestore(&dev->lock, flags); error = total > size ? -E2BIG : total; - if (copy_to_user(buf, tmp_buf, total < size ? total : size)) + if (copy_to_user(buf, tmp_buf, min(total, size))) error = -EFAULT; kfree(tmp_buf); return error; From patchwork Thu Aug 22 13:39:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773413 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (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 66E48183CB0; Thu, 22 Aug 2024 13:31:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333499; cv=none; b=RA4i1pqxsrHsn2jdxpsf8LUgM34zj16LZMPc9pnYmb5mAAbCWfvidgcTBhb9mokUjfBs794fAwxwJtb5UBBH3iDfp0uyl4cUbK01rJ7VtE/sxC1n8cbKn25B21scp9l/zSOhBNkJSA/ylsChAbuVZ819aZoru7O9Z7HOPB2MPM8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333499; c=relaxed/simple; bh=h6QniSsn+iP/ZJ8YjlAlY0rwKvwjfTZgr12f0Msgkc4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=BEnw7uCb+t6xwEB9p6J0xoJ7IN2Olb86157EOhquUo0r2sp1C9IgN8hrDn1jIXZvmZ+GAs81gLoy8ALku/eVRaA6xl1zyL3o8Or5BcsJwgOsUEJBPVauTAZYwRiMlozAc1zOB5NAyk6/pebNzdDLOYl6oHxdmP3StTa113VdG/Q= 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=45.249.212.188 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 [172.19.163.174]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4WqPFh1wJKzpTj8; Thu, 22 Aug 2024 21:30:00 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 500AD140134; Thu, 22 Aug 2024 21:31:33 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:32 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 2/8] Bluetooth: use min() to simplify the code Date: Thu, 22 Aug 2024 21:39:02 +0800 Message-ID: <20240822133908.1042240-3-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) When copying data from skb, it needs to determine the copy length. It is easier to understand using min() here. Signed-off-by: Li Zetao --- net/bluetooth/hidp/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index 707f229f896a..7bf24f2993ba 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -294,7 +294,7 @@ static int hidp_get_raw_report(struct hid_device *hid, skb = session->report_return; if (skb) { - len = skb->len < count ? skb->len : count; + len = min(skb->len, count); memcpy(data, skb->data, len); kfree_skb(skb); From patchwork Thu Aug 22 13:39:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773414 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) (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 3071F1C944B; Thu, 22 Aug 2024 13:31:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.190 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333500; cv=none; b=WWldeq+s5f65M1wlO+6zKJ7hRQ7U2nv3HyBNqKCr5mo42KQGALLuvTpcvOgNS/NI2VqQAI3KfEf6pbl+UpD1nVVmDtHxBjloDRmvFj6hxIkuBf9XHL7a2ST6ZW3G5imtUxWxsuRBSZhr9o7Nl9YaRUo7axh/x7icP3W4r6mdTjo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333500; c=relaxed/simple; bh=NFgLzZeCnwGzYZjN2AnH5yOVdhYopM0nyGVaWiOVNe4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Cf+1NIVwZxZ6Y2iKBYRlnkjreNqUXDTrWS2++6tBC9OFESj94/kwagJCELfmrWR089eQAgJuHrgH/kEhwUDeIW7snHqD+hVednEDXoIoC/YqpmfjgWSgHlXNe+2EZc0n+/+ZxVSUknewBQFTqgKTJCpT2L8nFA/OFPgYfi8KU98= 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=45.249.212.190 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 [172.19.88.234]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4WqPHQ4kstz2Cn9w; Thu, 22 Aug 2024 21:31:30 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 601B41400CA; Thu, 22 Aug 2024 21:31:34 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:33 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 3/8] net: caif: use max() to simplify the code Date: Thu, 22 Aug 2024 21:39:03 +0800 Message-ID: <20240822133908.1042240-4-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) When processing the tail append of sk buffer, the final length needs to be determined based on expectlen and addlen. Using max() here can increase the readability of the code. Signed-off-by: Li Zetao Reviewed-by: Simon Horman --- net/caif/cfpkt_skbuff.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/caif/cfpkt_skbuff.c b/net/caif/cfpkt_skbuff.c index 2ae8cfa3df88..96236d21b18e 100644 --- a/net/caif/cfpkt_skbuff.c +++ b/net/caif/cfpkt_skbuff.c @@ -298,10 +298,8 @@ struct cfpkt *cfpkt_append(struct cfpkt *dstpkt, if (unlikely(is_erronous(dstpkt) || is_erronous(addpkt))) { return dstpkt; } - if (expectlen > addlen) - neededtailspace = expectlen; - else - neededtailspace = addlen; + + neededtailspace = max(expectlen, addlen); if (dst->tail + neededtailspace > dst->end) { /* Create a dumplicate of 'dst' with more tail space */ From patchwork Thu Aug 22 13:39:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773415 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (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 6FF171CBE97; Thu, 22 Aug 2024 13:31:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333500; cv=none; b=daQaW5MAR3JdW8Izu21Zp3zv/Qur1/SbjnVEt+uXM4qBbGTlJAhAD5Agjx12X7M+3PfIB/Ck1iBmfmu/OhPo9SX1C6PDA5CWFm45erAOBVmk43GcuzR2pO2b5tsFgDyROi97Qu4S6wI3ZwjxXSBvuslvmfFhygvIF4c/giMtsqU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333500; c=relaxed/simple; bh=t7BKP1fJyf+XGyVjS1hmdmpmT50V/P9F1DFki6pafgo=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=H9s4eO7U1UmnRDIz5jShGI+wxWmYLVvT9fU7KKYXEo+RQLp26qLpr6iGU2/6DCHSVi9muZy5jwcUKZkL7WTLihiXg8keNxwvifE4iBYQSU5P2vVfHagk1xHIXPki+WF7NGHd7Iv2cSiGDIORA8mr1HSfAnuPMbYG9V5DfJWFQZo= 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=45.249.212.188 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 [172.19.162.254]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4WqPFB2klbzhY9H; Thu, 22 Aug 2024 21:29:34 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 716121800FF; Thu, 22 Aug 2024 21:31:35 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:34 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 4/8] libceph: use min() to simplify the code Date: Thu, 22 Aug 2024 21:39:04 +0800 Message-ID: <20240822133908.1042240-5-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) When resolving name in ceph_dns_resolve_name(), the end address of name is determined by the minimum value of delim_p and colon_p. So using min() here is more in line with the context. Signed-off-by: Li Zetao Reviewed-by: Simon Horman Acked-by: Ilya Dryomov --- net/ceph/messenger.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 3c8b78d9c4d1..d1b5705dc0c6 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -1254,7 +1254,7 @@ static int ceph_dns_resolve_name(const char *name, size_t namelen, colon_p = memchr(name, ':', namelen); if (delim_p && colon_p) - end = delim_p < colon_p ? delim_p : colon_p; + end = min(delim_p, colon_p); else if (!delim_p && colon_p) end = colon_p; else { From patchwork Thu Aug 22 13:39:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773416 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (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 DB29E1C9449; Thu, 22 Aug 2024 13:31:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333500; cv=none; b=rhKgypF7EBCD37G99OqXy1GfXSQx78al5KUkoF5eniqaDqtSiUfK6FOmkazyEwKbfYEq7KbjVeVGgIU2xH20Xv39mzV1de+xAaJy1SY0xbcuXyr5DWaWlws5QwEvXhon9RdLa0hY6glvzDlw0X1PqSCe62n8XteenPlrJiZrUlU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333500; c=relaxed/simple; bh=d1a/3Sd+36deN85pJ5KQ8bi8G8VN5Djen+1eXVXVhXM=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=jFoGdzyTXB5kXGOYPEo0byTnQmkP/pMygL/kkyzbgzOIpSjhg2+rX66dzwvAVlepkKUkg3Sw2+Rvo5xYuabGVByQH6k4ZvW+PWPIPopcDKfQhaR4vyhT1IwpxRp6XB+oLyB25EvU6j4uhfotkuglR93PeJr6Bm9NfBSLY6uHoyk= 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=45.249.212.189 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 [172.19.88.194]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4WqPB51XmNz69NR; Thu, 22 Aug 2024 21:26:53 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 7E48A140553; Thu, 22 Aug 2024 21:31:36 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:35 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 5/8] net: remove redundant judgments to simplify the code Date: Thu, 22 Aug 2024 21:39:05 +0800 Message-ID: <20240822133908.1042240-6-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) The res variable has been initialized to 0, and the number of prots being used will not exceed MAX_INT, so there is no need to judge whether it is greater than 0 before returning. Refer to the implementation of sock_inuse_get. Signed-off-by: Li Zetao --- net/core/sock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/sock.c b/net/core/sock.c index bbe4c58470c3..52bfc86a2f37 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3800,7 +3800,7 @@ int sock_prot_inuse_get(struct net *net, struct proto *prot) for_each_possible_cpu(cpu) res += per_cpu_ptr(net->core.prot_inuse, cpu)->val[idx]; - return res >= 0 ? res : 0; + return res; } EXPORT_SYMBOL_GPL(sock_prot_inuse_get); From patchwork Thu Aug 22 13:39:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773417 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 9D9121CBEB1; Thu, 22 Aug 2024 13:31:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333501; cv=none; b=gEOF4TzrcibuBEkY8VQvvbN34sAR9XX6+z9LUmQ6k+iqSGs2nwRGQxRcvMpkg9AjNmIMqLCYu4ObCC+SEWLETRBaZ42R/CbnsGL07r4/Z6uMeY47NbKT9rFmPo0/cUc/PJH1xmXLIIB5G0Y6VnYnACmhuhk6IEv+H5JM2OW9m8s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333501; c=relaxed/simple; bh=pfQnEsmFpxURztmKAKTGTjicEIdByeH+xqzYCEcJRGA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=P14u2MUGQnP/O+vG//P5ULUtMVbU1C448CpGEOvlsqQGCJor9lMcxfLJr7UzetdoOvEB6MkvVBHz8qyxDuqjbIdZYwCVjnBQUZJiRQ6rw9uudtWU4DkYxQjCdKKs2Z7VO2OUkkckEqb2SgqiqEKlmRRIXj1Ko0qVibCDYKe+gjo= 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=45.249.212.187 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 [172.19.163.48]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4WqPH55FWfzyRG0; Thu, 22 Aug 2024 21:31:13 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 8DF19180087; Thu, 22 Aug 2024 21:31:37 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:36 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 6/8] ipv6: mcast: use min() to simplify the code Date: Thu, 22 Aug 2024 21:39:06 +0800 Message-ID: <20240822133908.1042240-7-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) When coping sockaddr in ip6_mc_msfget(), the time of copies depends on the minimum value between sl_count and gf_numsrc. Using min() here is very semantic. Signed-off-by: Li Zetao Reviewed-by: Simon Horman --- net/ipv6/mcast.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 7ba01d8cfbae..b244dbf61d5f 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -586,7 +586,8 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf, const struct in6_addr *group; struct ipv6_mc_socklist *pmc; struct ip6_sf_socklist *psl; - int i, count, copycount; + unsigned int count; + int i, copycount; group = &((struct sockaddr_in6 *)&gsf->gf_group)->sin6_addr; @@ -610,7 +611,7 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf, psl = sock_dereference(pmc->sflist, sk); count = psl ? psl->sl_count : 0; - copycount = count < gsf->gf_numsrc ? count : gsf->gf_numsrc; + copycount = min(count, gsf->gf_numsrc); gsf->gf_numsrc = count; for (i = 0; i < copycount; i++) { struct sockaddr_in6 *psin6; From patchwork Thu Aug 22 13:39:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773418 Received: from szxga06-in.huawei.com (szxga06-in.huawei.com [45.249.212.32]) (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 66DDE1CC89F; Thu, 22 Aug 2024 13:31:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333502; cv=none; b=ZA+sEnrcO2BL0lcWkk7G2y2elMaKhU99ZTbMYdqJUxytvMK4IuSTvsX5JXMh0GV1EQAgAWo2NMSHPB3Hj/oNWkY4QWOTbbPNxSCxBbU78UHgMhak7Kt2QwACa83VG8KUWVIAMiheBJJ/FGCQxEwnxZOYV3nHo2z484zKp75dMFE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333502; c=relaxed/simple; bh=t4FIOjBlHFfm6xHxfdsoMnhaAA6dSAZlYtY+WOfRbkA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=V0OnRaqE9JlxHcZblubuFSLD9AvprZuuEuhnEjGXNtyOEvhIyY6MMXKg/eBLYiZi11tPvD6IiJ7dWVOKejBUTwAT2DfHTyRLizBCjfaRc2rKZ3923nvlciMj2CnZtjGec4GiS7hMB7TKyFU/r5gIYh4yYU9FTKhHlomtD+9/ahU= 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=45.249.212.32 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 [172.19.88.163]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4WqPFM4SpHz1xvn1; Thu, 22 Aug 2024 21:29:43 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 9A91C18001B; Thu, 22 Aug 2024 21:31:38 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:37 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 7/8] tipc: use min() to simplify the code Date: Thu, 22 Aug 2024 21:39:07 +0800 Message-ID: <20240822133908.1042240-8-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) When calculating size of own domain based on number of peers, the result should be less than MAX_MON_DOMAIN, so using min() here is very semantic. Signed-off-by: Li Zetao Reviewed-by: Simon Horman --- net/tipc/monitor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/monitor.c b/net/tipc/monitor.c index 77a3d016cade..e2f19627e43d 100644 --- a/net/tipc/monitor.c +++ b/net/tipc/monitor.c @@ -149,7 +149,7 @@ static int dom_size(int peers) while ((i * i) < peers) i++; - return i < MAX_MON_DOMAIN ? i : MAX_MON_DOMAIN; + return min(i, MAX_MON_DOMAIN); } static void map_set(u64 *up_map, int i, unsigned int v) From patchwork Thu Aug 22 13:39:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13773419 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 D11721CC8B8; Thu, 22 Aug 2024 13:31:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333503; cv=none; b=PxKHHJtOVmdAcCD4TOQdQ2R2j9j3BZQFMe9A9YFSat/AsnBv2h6LiRwIC3UUfXGxOWpQqLnztR7guOQQxIyM4Dk5G1+RULeZ8M4xOIZ7iC98Kw1xWpdg4bgGu0EatuzI6Oc+V3f/KDpTaWnEkMwj3SP8Snat+UVrsx72Dz1hh+g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724333503; c=relaxed/simple; bh=MsepUvgicJgEAXMFRoMiH1n5u/4ICpNE6DF8goEDdWE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=n02eHzQhyqGz+Nca+2DCv7By9lJwD0cyz6Bkn/JeAfsqdr6jee2GNBSInEYoe0fDyCezhlLWF73mBts6ilo8yNEZHh7Q4bZ6aZhhCeiadfqiu3XgqUQLk64jyB+fHm1u3JCR4jl5VrEK5y5DCuz7mQanLJNLUTPhDul3xCDArTw= 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=45.249.212.187 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 [172.19.163.48]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4WqPGp71xmzyQPx; Thu, 22 Aug 2024 21:30:58 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id A6F98180087; Thu, 22 Aug 2024 21:31:39 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 22 Aug 2024 21:31:38 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , Subject: [PATCH net-next 8/8] SUNRPC: use min() to simplify the code Date: Thu, 22 Aug 2024 21:39:08 +0800 Message-ID: <20240822133908.1042240-9-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822133908.1042240-1-lizetao1@huawei.com> References: <20240822133908.1042240-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd500012.china.huawei.com (7.221.188.25) When reading pages in xdr_read_pages, the number of XDR encoded bytes should be less than the len of aligned pages, so using min() here is very semantic. Signed-off-by: Li Zetao Reviewed-by: Simon Horman Acked-by: Chuck Lever --- net/sunrpc/xdr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 62e07c330a66..6746e920dbbb 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -1602,7 +1602,7 @@ unsigned int xdr_read_pages(struct xdr_stream *xdr, unsigned int len) end = xdr_stream_remaining(xdr) - pglen; xdr_set_tail_base(xdr, base, end); - return len <= pglen ? len : pglen; + return min(len, pglen); } EXPORT_SYMBOL_GPL(xdr_read_pages);