From patchwork Thu Mar 7 09:37:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xingui Yang X-Patchwork-Id: 779633 Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) (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 88C4D83CDD; Thu, 7 Mar 2024 09:39:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.35 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709804354; cv=none; b=Tc9pwqhZiPrT2A0Tjw2yA5kCTFhrHBfaERRHIr6lDKnoeHL+zWnK+OVDDhjMXFEWGRNK9RcXJOke3NhymTmlWsyR0cOc411EIbvrj8auapoi37LQ5k0a2mowp31BBYBlfxnbIwOfMQGwrn38bPwHY5KOAoT2/oX/rGBqx1iO6F0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709804354; c=relaxed/simple; bh=6/g2twa7SZ1wwd/bmFk+LdlNvEtLHm/7fgAKyqC66rw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TwOLvQJrYqB644OxuFh9U78ZkBrsDMnSg3br8/ErPGT+A3/yMEmu8dgpoEh7OGZF/ezUSHlcn79mGxQEt7+OsISIGucFmxObdJj5bbLJ/tlgWnsxV7NQAFiQfDPzByGEO5KDL6b2oqD5jTYbrVwLf5e2ZRi+RjUXbApMMXHvpVk= 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=45.249.212.35 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 [172.19.163.44]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4Tr426209Gz1QB5g; Thu, 7 Mar 2024 17:36:46 +0800 (CST) Received: from dggpemd100001.china.huawei.com (unknown [7.185.36.94]) by mail.maildlp.com (Postfix) with ESMTPS id 936AC1402CA; Thu, 7 Mar 2024 17:39:08 +0800 (CST) Received: from localhost.localdomain (10.50.165.33) by dggpemd100001.china.huawei.com (7.185.36.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Thu, 7 Mar 2024 17:39:08 +0800 From: Xingui Yang To: , , , , CC: , , , , , Subject: [PATCH v3 2/3] scsi: libsas: Add a helper sas_get_sas_addr_and_dev_type() Date: Thu, 7 Mar 2024 09:37:32 +0000 Message-ID: <20240307093733.41222-3-yangxingui@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240307093733.41222-1-yangxingui@huawei.com> References: <20240307093733.41222-1-yangxingui@huawei.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemd100001.china.huawei.com (7.185.36.94) Add a helper to get attached_sas_addr and device type from disc_resp. Suggested-by: John Garry Signed-off-by: Xingui Yang --- drivers/scsi/libsas/sas_expander.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 1eeb69cba8da..d6147616339f 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -1631,6 +1631,16 @@ int sas_discover_root_expander(struct domain_device *dev) /* ---------- Domain revalidation ---------- */ +static void sas_get_sas_addr_and_dev_type(struct smp_disc_resp *disc_resp, + u8 *sas_addr, + enum sas_device_type *type) +{ + memcpy(sas_addr, disc_resp->disc.attached_sas_addr, SAS_ADDR_SIZE); + *type = to_dev_type(&disc_resp->disc); + if (*type == SAS_PHY_UNUSED) + memset(sas_addr, 0, SAS_ADDR_SIZE); +} + static int sas_get_phy_discover(struct domain_device *dev, int phy_id, struct smp_disc_resp *disc_resp) { @@ -1684,13 +1694,8 @@ int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id, return -ENOMEM; res = sas_get_phy_discover(dev, phy_id, disc_resp); - if (res == 0) { - memcpy(sas_addr, disc_resp->disc.attached_sas_addr, - SAS_ADDR_SIZE); - *type = to_dev_type(&disc_resp->disc); - if (*type == 0) - memset(sas_addr, 0, SAS_ADDR_SIZE); - } + if (res == 0) + sas_get_sas_addr_and_dev_type(disc_resp, sas_addr, type); kfree(disc_resp); return res; }