From patchwork Tue Aug 22 15:30:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 716005 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48B22EE49A3 for ; Tue, 22 Aug 2023 15:31:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237125AbjHVPbO (ORCPT ); Tue, 22 Aug 2023 11:31:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237117AbjHVPbO (ORCPT ); Tue, 22 Aug 2023 11:31:14 -0400 Received: from mail-il1-f178.google.com (mail-il1-f178.google.com [209.85.166.178]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 482A5CE7 for ; Tue, 22 Aug 2023 08:31:10 -0700 (PDT) Received: by mail-il1-f178.google.com with SMTP id e9e14a558f8ab-34c9f8c9876so10822115ab.3 for ; Tue, 22 Aug 2023 08:31:10 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692718269; x=1693323069; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=3Gdk4CuSFOEhAJXwsAU/ygf8gmkeoSfjq3T8qNuvsWI=; b=H0tNdxKyR9uzazdpRkgV6d3aYvwVdJaM+GU6emIHHB6NaEbvMtQwkakF3pOMM8saZF tnJ5a688eeaaO+efOHA4iL6plvwWL1oORdF1EatJA1z48A0Zxhxv9O5STPBN/G0U+0KY IgtlIz9gsB7Xr7K5iMVT7v+iSG2EXQLQ3UNQ2FMPtLAMqjKzln1b4i8YOqn4ryBmWH78 ZqgRCHqkYL3hvwXArbzlYzpoVmqaFooiEOflVb6tPqlBZzu1QMfo1NYPY+K8AnR6G5ji HkaiYIxKMCgDXT8pMcjSmJiRdUOwYIb5odNsPVdGy1z8Yx4YD4zZLvzY68yHgi/bX4vs XKkQ== X-Gm-Message-State: AOJu0Yz0TPa2H9c8YnuF70e9Izx0J6skuXxUWroDjSXN5CXThuTvj5c9 yNdu29UaH+xdm91gio/GrZ4= X-Google-Smtp-Source: AGHT+IErKIFIa7O8pnTroLn8/Qd8MEwMVizx324tx9TJ8RWoYslEFCoVAhTz9rinNfNhrwNgEkc1MA== X-Received: by 2002:a05:6e02:1bc5:b0:34c:a244:bb9c with SMTP id x5-20020a056e021bc500b0034ca244bb9cmr11472076ilv.21.1692718269321; Tue, 22 Aug 2023 08:31:09 -0700 (PDT) Received: from bvanassche-linux.mtv.corp.google.com ([2620:15c:211:201:88be:bf57:de29:7cc]) by smtp.gmail.com with ESMTPSA id p15-20020a637f4f000000b00563590be25esm8197556pgn.29.2023.08.22.08.31.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Aug 2023 08:31:08 -0700 (PDT) From: Bart Van Assche To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Bart Van Assche , Hannes Reinecke , Damien Le Moal , John Garry , Mike Christie , Ming Lei , Damien Le Moal , Adaptec OEM Raid Solutions , "James E.J. Bottomley" , Don Brace , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , "Michael S. Tsirkin" , Jason Wang Subject: [PATCH v2] scsi: core: Improve type safety of scsi_rescan_device() Date: Tue, 22 Aug 2023 08:30:41 -0700 Message-ID: <20230822153043.4046244-1-bvanassche@acm.org> X-Mailer: git-send-email 2.42.0.rc1.204.g551eb34607-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Most callers of scsi_rescan_device() have the scsi_device pointer readily available. Pass a struct scsi_device pointer to scsi_rescan_device() instead of a struct device pointer. This change prevents that a pointer to another struct device would be passed accidentally to scsi_rescan_device(). Remove the scsi_rescan_device() declaration from the scsi_priv.h header file since it duplicates the declaration in . Reviewed-by: Hannes Reinecke Reviewed-by: Damien Le Moal Reviewed-by: John Garry Cc: Mike Christie Cc: Ming Lei Signed-off-by: Bart Van Assche --- Changes compared to v1: - Inserted the word "readily" in the patch description. - Removed a redundant occurence of the word pointer from the patch description. drivers/ata/libata-scsi.c | 2 +- drivers/scsi/aacraid/commsup.c | 2 +- drivers/scsi/mvumi.c | 2 +- drivers/scsi/scsi_lib.c | 2 +- drivers/scsi/scsi_priv.h | 1 - drivers/scsi/scsi_scan.c | 4 ++-- drivers/scsi/scsi_sysfs.c | 4 ++-- drivers/scsi/smartpqi/smartpqi_init.c | 2 +- drivers/scsi/storvsc_drv.c | 2 +- drivers/scsi/virtio_scsi.c | 2 +- include/scsi/scsi_host.h | 2 +- 11 files changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 370d18aca71e..f5c36c8c243a 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -4884,7 +4884,7 @@ void ata_scsi_dev_rescan(struct work_struct *work) } spin_unlock_irqrestore(ap->lock, flags); - scsi_rescan_device(&(sdev->sdev_gendev)); + scsi_rescan_device(sdev); scsi_device_put(sdev); spin_lock_irqsave(ap->lock, flags); } diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 3f062e4013ab..013a9a334972 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1451,7 +1451,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) #endif break; } - scsi_rescan_device(&device->sdev_gendev); + scsi_rescan_device(device); break; default: diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c index 73aa7059b556..6cfbac518085 100644 --- a/drivers/scsi/mvumi.c +++ b/drivers/scsi/mvumi.c @@ -1500,7 +1500,7 @@ static void mvumi_rescan_devices(struct mvumi_hba *mhba, int id) sdev = scsi_device_lookup(mhba->shost, 0, id, 0); if (sdev) { - scsi_rescan_device(&sdev->sdev_gendev); + scsi_rescan_device(sdev); scsi_device_put(sdev); } } diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index d84209a96b48..b0169ffaefd2 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2445,7 +2445,7 @@ static void scsi_evt_emit(struct scsi_device *sdev, struct scsi_event *evt) envp[idx++] = "SDEV_MEDIA_CHANGE=1"; break; case SDEV_EVT_INQUIRY_CHANGE_REPORTED: - scsi_rescan_device(&sdev->sdev_gendev); + scsi_rescan_device(sdev); envp[idx++] = "SDEV_UA=INQUIRY_DATA_HAS_CHANGED"; break; case SDEV_EVT_CAPACITY_CHANGE_REPORTED: diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index f42388ecb024..65c993c97909 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -138,7 +138,6 @@ extern int scsi_complete_async_scans(void); extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, unsigned int, u64, enum scsi_scan_mode); extern void scsi_forget_host(struct Scsi_Host *); -extern void scsi_rescan_device(struct device *); /* scsi_sysctl.c */ #ifdef CONFIG_SYSCTL diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index e046dd51d326..712eebceda35 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1622,9 +1622,9 @@ int scsi_add_device(struct Scsi_Host *host, uint channel, } EXPORT_SYMBOL(scsi_add_device); -void scsi_rescan_device(struct device *dev) +void scsi_rescan_device(struct scsi_device *sdev) { - struct scsi_device *sdev = to_scsi_device(dev); + struct device *dev = &sdev->sdev_gendev; device_lock(dev); diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 60317676e45f..24f6eefb6803 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -747,7 +747,7 @@ static ssize_t store_rescan_field (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - scsi_rescan_device(dev); + scsi_rescan_device(to_scsi_device(dev)); return count; } static DEVICE_ATTR(rescan, S_IWUSR, NULL, store_rescan_field); @@ -840,7 +840,7 @@ store_state_field(struct device *dev, struct device_attribute *attr, * waiting for pending I/O to finish. */ blk_mq_run_hw_queues(sdev->request_queue, true); - scsi_rescan_device(dev); + scsi_rescan_device(sdev); } return ret == 0 ? count : -EINVAL; diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 6aaaa7ebca37..ed694d939964 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -2257,7 +2257,7 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, device->advertised_queue_depth = device->queue_depth; scsi_change_queue_depth(device->sdev, device->advertised_queue_depth); if (device->rescan) { - scsi_rescan_device(&device->sdev->sdev_gendev); + scsi_rescan_device(device->sdev); device->rescan = false; } } diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 659196a2f63a..6bfd88495edb 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -470,7 +470,7 @@ static void storvsc_device_scan(struct work_struct *work) sdev = scsi_device_lookup(wrk->host, 0, wrk->tgt_id, wrk->lun); if (!sdev) goto done; - scsi_rescan_device(&sdev->sdev_gendev); + scsi_rescan_device(sdev); scsi_device_put(sdev); done: diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index bd5633667d01..9d1bdcdc1331 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -325,7 +325,7 @@ static void virtscsi_handle_param_change(struct virtio_scsi *vscsi, /* Handle "Parameters changed", "Mode parameters changed", and "Capacity data has changed". */ if (asc == 0x2a && (ascq == 0x00 || ascq == 0x01 || ascq == 0x09)) - scsi_rescan_device(&sdev->sdev_gendev); + scsi_rescan_device(sdev); scsi_device_put(sdev); } diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 70b7475dcf56..b07db65906dd 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -764,7 +764,7 @@ scsi_template_proc_dir(const struct scsi_host_template *sht); #define scsi_template_proc_dir(sht) NULL #endif extern void scsi_scan_host(struct Scsi_Host *); -extern void scsi_rescan_device(struct device *); +extern void scsi_rescan_device(struct scsi_device *); extern void scsi_remove_host(struct Scsi_Host *); extern struct Scsi_Host *scsi_host_get(struct Scsi_Host *); extern int scsi_host_busy(struct Scsi_Host *shost);