From patchwork Sat Feb 20 21:40:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chaitanya Kulkarni X-Patchwork-Id: 12097079 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C487EC433DB for ; Sat, 20 Feb 2021 21:42:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B50064E2F for ; Sat, 20 Feb 2021 21:42:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229842AbhBTVmX (ORCPT ); Sat, 20 Feb 2021 16:42:23 -0500 Received: from esa1.hgst.iphmx.com ([68.232.141.245]:61339 "EHLO esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229953AbhBTVl6 (ORCPT ); Sat, 20 Feb 2021 16:41:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1613857317; x=1645393317; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=slEW5jUIHdjn6ZgklOXQG+55T+E7Y+l5P0x8rbnaJGc=; b=a2fhnTr34jrgs0DMUYFMgaW3FFcPGSXJuJZM+3dPvv7MzKFaHYtCnr4l VKTv7SlEnwjPR7BHCiJhKD+6WCzAtqez1hveRsON3IKuc6tE17iWPeYa8 ELqDLJanaAlB+WyTzD34LMpLQcJZaepGH0ZCkZb0G/EdwflcQP7IYeOz7 dd4Z9YnVzneB91pjMAg5OEQrTSF9qZjNWixiw2NP8Oc+Kv+qWoINLPTgJ ZmkTeFgTwUkHhtc1hBnzQyq0hB8+p/tpEZabuGvSfGUvM95kKxIRklRRq 6lJD6OXOTmwHa9knPWwyXHxSf9QNq9T3QFgMM85zUeQ7+qsII6vMSuV9r A==; IronPort-SDR: zpxZB9zCCrwwU4nZXmqt6kwEDIO7MkRquagMcxT+jKtYzU0pnn2gX8Uaz4Hc6Zxppft1nPKe/y lQfavDcd+Zl6NNS+JBfXlbsfRa6PxWD/OfLnsCGNmHB3e8UBJ3Nav6vkOuZbGh5v+60nNU3yMv lce916/HjECltogQ9OjIDkP7H4+CMjloBC5PiR/nZfDFXsuQwHp8oEz1N5kuQfWjmNaxmiDvg9 +ghriwKe9pB/sQfmXb7ma1h08Yl2uPiqneaipP8ZgQArmF/ZIsRMGj85sakyzRvcZjrxZXqcOu tFw= X-IronPort-AV: E=Sophos;i="5.81,193,1610380800"; d="scan'208";a="270955012" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 21 Feb 2021 05:40:52 +0800 IronPort-SDR: uO0FNYYmxufwjbRexr2USOTzMbZ1apiTqWO18tD2WGKjkcdBaSyymoA/NSkfnQEVxbg18zdyk1 2Z7HyEmHZFOuCH7TdPt8sg43SvMslNXxzUwx9xQ18Rw5w1/WxNt9EC7yA5igI/O2OgqwWCwXFG 7Fn+BXdOlKcEi/8FF0VzNB5pEGN8q7rbFLgSZj0PJi0291SGFmhnJNKhDs6tUZh30RfFNjTxj2 B1y8e0rI0xq6aAoMjKVrc2xLkbXNzX1wOwWX57EE+AqVwVDg6LNtR8aKweO18TxegRp0pJrg6N lnbeU3X3oLnSQWxWHGf6nbkv Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Feb 2021 13:24:15 -0800 IronPort-SDR: 52IIn5Z2HvQ2QL6R9+vrHuD/ZHyatKkqGm/NWnkdDPs5QJ1aoCEb5lV9Alli5MXBkGq0nHgulU RMEN8a7RAOZjmBP5JNzKtyGlKJ8r6E98zra/ovzGZuvjcWD/uKdx/UUeLLIJviR3DuNOBcMzVt Dawdc4If4XknE3xl/QSMy3Q7y7t2lWek0CcD7So9/xM9qOrwKw+sDK0IrscZGArm4Ve3db9mCb 7TTRVanb2hT5glTrW2kJYiPRNvnB8ySTl6Kzt+24nnYKXYzUjDUlyvNdfLpDYbUxeSGYtCNiAz bgk= WDCIronportException: Internal Received: from vm.labspan.wdc.com (HELO vm.sc.wdc.com) ([10.6.137.102]) by uls-op-cesaip02.wdc.com with ESMTP; 20 Feb 2021 13:40:52 -0800 From: Chaitanya Kulkarni To: linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Cc: martin.petersen@oracle.com, hare@suse.de, jejb@linux.ibm.com, mlombard@redhat.com, michael.christie@oracle.com, houpu@bytedance.com, Chaitanya Kulkarni Subject: [RFC PATCH 22/24] target/pr: remove the memset with declare-init Date: Sat, 20 Feb 2021 13:40:51 -0800 Message-Id: <20210220214051.7381-1-chaitanya.kulkarni@wdc.com> X-Mailer: git-send-email 2.22.1.dirty MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Signed-off-by: Chaitanya Kulkarni --- drivers/target/target_core_pr.c | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 3644d2642929..894cda06261c 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -896,9 +896,8 @@ static void core_scsi3_aptpl_reserve( struct se_node_acl *node_acl, struct t10_pr_registration *pr_reg) { - char i_buf[PR_REG_ISID_ID_LEN]; + char i_buf[PR_REG_ISID_ID_LEN] = { }; - memset(i_buf, 0, PR_REG_ISID_ID_LEN); core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); spin_lock(&dev->dev_reservation_lock); @@ -1021,9 +1020,8 @@ static void __core_scsi3_dump_registration( enum register_type register_type) { struct se_portal_group *se_tpg = nacl->se_tpg; - char i_buf[PR_REG_ISID_ID_LEN]; + char i_buf[PR_REG_ISID_ID_LEN] = { }; - memset(&i_buf[0], 0, PR_REG_ISID_ID_LEN); core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); pr_debug("SPC-3 PR [%s] Service Action: REGISTER%s Initiator" @@ -1283,11 +1281,10 @@ static void __core_scsi3_free_registration( struct t10_reservation *pr_tmpl = &dev->t10_pr; struct se_node_acl *nacl = pr_reg->pr_reg_nacl; struct se_dev_entry *deve; - char i_buf[PR_REG_ISID_ID_LEN]; + char i_buf[PR_REG_ISID_ID_LEN] = { }; lockdep_assert_held(&pr_tmpl->registration_lock); - memset(i_buf, 0, PR_REG_ISID_ID_LEN); core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); if (!list_empty(&pr_reg->pr_reg_list)) @@ -2057,7 +2054,8 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, struct se_portal_group *se_tpg; struct t10_pr_registration *pr_reg, *pr_reg_p, *pr_reg_tmp; struct t10_reservation *pr_tmpl = &dev->t10_pr; - unsigned char isid_buf[PR_REG_ISID_LEN], *isid_ptr = NULL; + unsigned char isid_buf[PR_REG_ISID_LEN] = { }; + unsigned char *isid_ptr = NULL; sense_reason_t ret = TCM_NO_SENSE; int pr_holder = 0, type; @@ -2068,7 +2066,6 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, se_tpg = se_sess->se_tpg; if (se_tpg->se_tpg_tfo->sess_get_initiator_sid) { - memset(&isid_buf[0], 0, PR_REG_ISID_LEN); se_tpg->se_tpg_tfo->sess_get_initiator_sid(se_sess, &isid_buf[0], PR_REG_ISID_LEN); isid_ptr = &isid_buf[0]; @@ -2280,11 +2277,9 @@ core_scsi3_pro_reserve(struct se_cmd *cmd, int type, int scope, u64 res_key) struct se_lun *se_lun = cmd->se_lun; struct t10_pr_registration *pr_reg, *pr_res_holder; struct t10_reservation *pr_tmpl = &dev->t10_pr; - char i_buf[PR_REG_ISID_ID_LEN]; + char i_buf[PR_REG_ISID_ID_LEN] = { }; sense_reason_t ret; - memset(i_buf, 0, PR_REG_ISID_ID_LEN); - if (!se_sess || !se_lun) { pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n"); return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; @@ -2455,12 +2450,11 @@ static void __core_scsi3_complete_pro_release( int unreg) { const struct target_core_fabric_ops *tfo = se_nacl->se_tpg->se_tpg_tfo; - char i_buf[PR_REG_ISID_ID_LEN]; + char i_buf[PR_REG_ISID_ID_LEN] = { }; int pr_res_type = 0, pr_res_scope = 0; lockdep_assert_held(&dev->dev_reservation_lock); - memset(i_buf, 0, PR_REG_ISID_ID_LEN); core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); /* * Go ahead and release the current PR reservation holder. @@ -2766,11 +2760,10 @@ static void __core_scsi3_complete_pro_preempt( { struct se_node_acl *nacl = pr_reg->pr_reg_nacl; const struct target_core_fabric_ops *tfo = nacl->se_tpg->se_tpg_tfo; - char i_buf[PR_REG_ISID_ID_LEN]; + char i_buf[PR_REG_ISID_ID_LEN] = { }; lockdep_assert_held(&dev->dev_reservation_lock); - memset(i_buf, 0, PR_REG_ISID_ID_LEN); core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); /* * Do an implicit RELEASE of the existing reservation. @@ -3156,7 +3149,7 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, struct t10_reservation *pr_tmpl = &dev->t10_pr; unsigned char *buf; const unsigned char *initiator_str; - char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN]; + char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN] = { }; u32 tid_len, tmp_tid_len; int new_reg = 0, type, scope, matching_iname; sense_reason_t ret; @@ -3168,7 +3161,6 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key, return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } - memset(i_buf, 0, PR_REG_ISID_ID_LEN); se_tpg = se_sess->se_tpg; tf_ops = se_tpg->se_tpg_tfo; /*