From patchwork Tue Nov 28 12:11:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artem Chernyshev X-Patchwork-Id: 13471079 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from gw.red-soft.ru (red-soft.ru [188.246.186.2]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9B09E182; Tue, 28 Nov 2023 04:12:06 -0800 (PST) Received: from localhost.biz (unknown [10.81.81.211]) by gw.red-soft.ru (Postfix) with ESMTPA id 66B1E3E1AF3; Tue, 28 Nov 2023 15:12:04 +0300 (MSK) From: Artem Chernyshev To: Artur Paszkiewicz Cc: Artem Chernyshev , "James E . J . Bottomley" , "Martin K . Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org Subject: [PATCH] scsi: isci: Remove redundant check in isci_task_request_build() Date: Tue, 28 Nov 2023 15:11:59 +0300 Message-Id: <20231128121159.2373975-1-artem.chernyshev@red-soft.ru> X-Mailer: git-send-email 2.37.3 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-KLMS-Rule-ID: 1 X-KLMS-Message-Action: clean X-KLMS-AntiSpam-Lua-Profiles: 181653 [Nov 28 2023] X-KLMS-AntiSpam-Version: 6.0.0.2 X-KLMS-AntiSpam-Envelope-From: artem.chernyshev@red-soft.ru X-KLMS-AntiSpam-Rate: 0 X-KLMS-AntiSpam-Status: not_detected X-KLMS-AntiSpam-Method: none X-KLMS-AntiSpam-Auth: dkim=none X-KLMS-AntiSpam-Info: LuaCore: 5 0.3.5 98d108ddd984cca1d7e65e595eac546a62b0144b, {Tracking_from_domain_doesnt_match_to}, 127.0.0.199:7.1.2;localhost.biz:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;red-soft.ru:7.1.1, FromAlignment: s X-MS-Exchange-Organization-SCL: -1 X-KLMS-AntiSpam-Interceptor-Info: scan successful X-KLMS-AntiPhishing: Clean, bases: 2023/11/28 09:02:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2023/11/28 07:11:00 #22560184 X-KLMS-AntiVirus-Status: Clean, skipped sci_task_request_construct_ssp() have invariant return. Change this function to void and get rid of unnecessary checks. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Artem Chernyshev --- drivers/scsi/isci/request.c | 5 +---- drivers/scsi/isci/request.h | 2 +- drivers/scsi/isci/task.c | 4 +--- 3 files changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index a7b3243b471d..71f711cb0628 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -738,8 +738,7 @@ static enum sci_status sci_io_request_construct_basic_ssp(struct isci_request *i return SCI_SUCCESS; } -enum sci_status sci_task_request_construct_ssp( - struct isci_request *ireq) +void sci_task_request_construct_ssp(struct isci_request *ireq) { /* Construct the SSP Task SCU Task Context */ scu_ssp_task_request_construct_task_context(ireq); @@ -748,8 +747,6 @@ enum sci_status sci_task_request_construct_ssp( sci_task_request_build_ssp_task_iu(ireq); sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); - - return SCI_SUCCESS; } static enum sci_status sci_io_request_construct_basic_sata(struct isci_request *ireq) diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 20b141739e4d..79ddfffbf73c 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -300,7 +300,7 @@ sci_task_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, u16 io_tag, struct isci_request *ireq); -enum sci_status sci_task_request_construct_ssp(struct isci_request *ireq); +void sci_task_request_construct_ssp(struct isci_request *ireq); void sci_smp_request_copy_response(struct isci_request *ireq); static inline int isci_task_is_ncq_recovery(struct sas_task *task) diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index c514b20293b2..3a25b1a2c52d 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -243,9 +243,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, /* XXX convert to get this from task->tproto like other drivers */ if (dev->dev_type == SAS_END_DEVICE) { isci_tmf->proto = SAS_PROTOCOL_SSP; - status = sci_task_request_construct_ssp(ireq); - if (status != SCI_SUCCESS) - return NULL; + sci_task_request_construct_ssp(ireq); } return ireq;