From 422969bbb5af2f7226cf75cdb4aae02f46299dc2 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 9 Jul 2021 13:26:20 -0700 Subject: scsi: core: Fix the documentation of the scsi_execute() time parameter The unit of the scsi_execute() timeout parameter is 1/HZ seconds instead of one second, just like the timeouts used in the block layer. Fix the documentation header above the definition of the scsi_execute() macro. Link: https://lore.kernel.org/r/20210709202638.9480-3-bvanassche@acm.org Fixes: "[SCSI] use scatter lists for all block pc requests and simplify hw handlers" # v2.6.16.28 Cc: "James E.J. Bottomley" Cc: Hannes Reinecke Cc: Ming Lei Cc: John Garry Reviewed-by: Avri Altman Reviewed-by: Hannes Reinecke Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 8f9727e525aa..7456a26aef51 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -194,7 +194,7 @@ void scsi_queue_insert(struct scsi_cmnd *cmd, int reason) * @bufflen: len of buffer * @sense: optional sense buffer * @sshdr: optional decoded sense header - * @timeout: request timeout in seconds + * @timeout: request timeout in HZ * @retries: number of times to retry request * @flags: flags for ->cmd_flags * @rq_flags: flags for ->rq_flags -- cgit v1.2.3 From fbf1a58701ecbf61211476277a77eaada6c091d4 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Sat, 10 Jul 2021 20:36:23 -0700 Subject: scsi: fas216: Fix a build error Use SAM_STAT_GOOD instead of GOOD since GOOD has been removed. Link: https://lore.kernel.org/r/20210711033623.11267-1-bvanassche@acm.org Fixes: 3d45cefc8edd ("scsi: core: Drop obsolete Linux-specific SCSI status codes") Fixes: df1303147649 ("scsi: fas216: Use get_status_byte() to avoid using Linux-specific status codes") Cc: Hannes Reinecke Reviewed-by: Hannes Reinecke Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/scsi/arm/fas216.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c index 30ed3d23635a..6baa9b36367d 100644 --- a/drivers/scsi/arm/fas216.c +++ b/drivers/scsi/arm/fas216.c @@ -2010,7 +2010,7 @@ static void fas216_rq_sns_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, "request sense complete, result=0x%04x%02x%02x", result, SCpnt->SCp.Message, SCpnt->SCp.Status); - if (result != DID_OK || SCpnt->SCp.Status != GOOD) + if (result != DID_OK || SCpnt->SCp.Status != SAM_STAT_GOOD) /* * Something went wrong. Make sure that we don't * have valid data in the sense buffer that could -- cgit v1.2.3 From 93aa71ad7379900e61c8adff6a710a4c18c7c99b Mon Sep 17 00:00:00 2001 From: Tyrel Datwyler Date: Thu, 1 Jul 2021 13:56:59 -0600 Subject: scsi: core: Fix bad pointer dereference when ehandler kthread is invalid Commit 66a834d09293 ("scsi: core: Fix error handling of scsi_host_alloc()") changed the allocation logic to call put_device() to perform host cleanup with the assumption that IDA removal and stopping the kthread would properly be performed in scsi_host_dev_release(). However, in the unlikely case that the error handler thread fails to spawn, shost->ehandler is set to ERR_PTR(-ENOMEM). The error handler cleanup code in scsi_host_dev_release() will call kthread_stop() if shost->ehandler != NULL which will always be the case whether the kthread was successfully spawned or not. In the case that it failed to spawn this has the nasty side effect of trying to dereference an invalid pointer when kthread_stop() is called. The following splat provides an example of this behavior in the wild: scsi host11: error handler thread failed to spawn, error = -4 Kernel attempted to read user page (10c) - exploit attempt? (uid: 0) BUG: Kernel NULL pointer dereference on read at 0x0000010c Faulting instruction address: 0xc00000000818e9a8 Oops: Kernel access of bad area, sig: 11 [#1] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries Modules linked in: ibmvscsi(+) scsi_transport_srp dm_multipath dm_mirror dm_region hash dm_log dm_mod fuse overlay squashfs loop CPU: 12 PID: 274 Comm: systemd-udevd Not tainted 5.13.0-rc7 #1 NIP: c00000000818e9a8 LR: c0000000089846e8 CTR: 0000000000007ee8 REGS: c000000037d12ea0 TRAP: 0300 Not tainted (5.13.0-rc7) MSR: 800000000280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> CR: 28228228 XER: 20040001 CFAR: c0000000089846e4 DAR: 000000000000010c DSISR: 40000000 IRQMASK: 0 GPR00: c0000000089846e8 c000000037d13140 c000000009cc1100 fffffffffffffffc GPR04: 0000000000000001 0000000000000000 0000000000000000 c000000037dc0000 GPR08: 0000000000000000 c000000037dc0000 0000000000000001 00000000fffff7ff GPR12: 0000000000008000 c00000000a049000 c000000037d13d00 000000011134d5a0 GPR16: 0000000000001740 c0080000190d0000 c0080000190d1740 c000000009129288 GPR20: c000000037d13bc0 0000000000000001 c000000037d13bc0 c0080000190b7898 GPR24: c0080000190b7708 0000000000000000 c000000033bb2c48 0000000000000000 GPR28: c000000046b28280 0000000000000000 000000000000010c fffffffffffffffc NIP [c00000000818e9a8] kthread_stop+0x38/0x230 LR [c0000000089846e8] scsi_host_dev_release+0x98/0x160 Call Trace: [c000000033bb2c48] 0xc000000033bb2c48 (unreliable) [c0000000089846e8] scsi_host_dev_release+0x98/0x160 [c00000000891e960] device_release+0x60/0x100 [c0000000087e55c4] kobject_release+0x84/0x210 [c00000000891ec78] put_device+0x28/0x40 [c000000008984ea4] scsi_host_alloc+0x314/0x430 [c0080000190b38bc] ibmvscsi_probe+0x54/0xad0 [ibmvscsi] [c000000008110104] vio_bus_probe+0xa4/0x4b0 [c00000000892a860] really_probe+0x140/0x680 [c00000000892aefc] driver_probe_device+0x15c/0x200 [c00000000892b63c] device_driver_attach+0xcc/0xe0 [c00000000892b740] __driver_attach+0xf0/0x200 [c000000008926f28] bus_for_each_dev+0xa8/0x130 [c000000008929ce4] driver_attach+0x34/0x50 [c000000008928fc0] bus_add_driver+0x1b0/0x300 [c00000000892c798] driver_register+0x98/0x1a0 [c00000000810eb60] __vio_register_driver+0x80/0xe0 [c0080000190b4a30] ibmvscsi_module_init+0x9c/0xdc [ibmvscsi] [c0000000080121d0] do_one_initcall+0x60/0x2d0 [c000000008261abc] do_init_module+0x7c/0x320 [c000000008265700] load_module+0x2350/0x25b0 [c000000008265cb4] __do_sys_finit_module+0xd4/0x160 [c000000008031110] system_call_exception+0x150/0x2d0 [c00000000800d35c] system_call_common+0xec/0x278 Fix this be nulling shost->ehandler when the kthread fails to spawn. Link: https://lore.kernel.org/r/20210701195659.3185475-1-tyreld@linux.ibm.com Fixes: 66a834d09293 ("scsi: core: Fix error handling of scsi_host_alloc()") Cc: stable@vger.kernel.org Reviewed-by: Ming Lei Signed-off-by: Tyrel Datwyler Signed-off-by: Martin K. Petersen --- drivers/scsi/hosts.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 929a3b043ad7..3f6f14f0cafb 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -488,6 +488,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) shost_printk(KERN_WARNING, shost, "error handler thread failed to spawn, error = %ld\n", PTR_ERR(shost->ehandler)); + shost->ehandler = NULL; goto fail; } -- cgit v1.2.3 From 8b3bdd99c092bbaeaa7d9eecb1a3e5dc9112002b Mon Sep 17 00:00:00 2001 From: Steffen Maier Date: Fri, 2 Jul 2021 18:09:22 +0200 Subject: scsi: zfcp: Report port fc_security as unknown early during remote cable pull On remote cable pull, a zfcp_port keeps its status and only gets ZFCP_STATUS_PORT_LINK_TEST added. Only after an ADISC timeout, we would actually start port recovery and remove ZFCP_STATUS_COMMON_UNBLOCKED which zfcp_sysfs_port_fc_security_show() detected and reported as "unknown" instead of the old and possibly stale zfcp_port->connection_info. Add check for ZFCP_STATUS_PORT_LINK_TEST for timely "unknown" report. Link: https://lore.kernel.org/r/20210702160922.2667874-1-maier@linux.ibm.com Fixes: a17c78460093 ("scsi: zfcp: report FC Endpoint Security in sysfs") Cc: #5.7+ Reviewed-by: Benjamin Block Signed-off-by: Steffen Maier Signed-off-by: Martin K. Petersen --- drivers/s390/scsi/zfcp_sysfs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index 544efd4c42f0..b8cd75a872ee 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -487,6 +487,7 @@ static ssize_t zfcp_sysfs_port_fc_security_show(struct device *dev, if (0 == (status & ZFCP_STATUS_COMMON_OPEN) || 0 == (status & ZFCP_STATUS_COMMON_UNBLOCKED) || 0 == (status & ZFCP_STATUS_PORT_PHYS_OPEN) || + 0 != (status & ZFCP_STATUS_PORT_LINK_TEST) || 0 != (status & ZFCP_STATUS_COMMON_ERP_FAILED) || 0 != (status & ZFCP_STATUS_COMMON_ACCESS_BOXED)) i = sprintf(buf, "unknown\n"); -- cgit v1.2.3 From bb6beabf2f79ea063750bf16e78b61e5a50f2d5c Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 8 Jul 2021 09:57:23 -0700 Subject: scsi: pm8001: Clean up kernel-doc and comments Fix kernel-doc warnings then test again, wash, rinse, find more, then repeat more/again. Also fix spellos, some grammar, and some punctuation. ../drivers/scsi/pm8001/pm8001_ctl.c:557: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst ** pm8001_ctl_fatal_log_show - fatal error logging ../drivers/scsi/pm8001/pm8001_ctl.c:577: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst ** non_fatal_log_show - non fatal error logging ../drivers/scsi/pm8001/pm8001_ctl.c:622: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst ** pm8001_ctl_gsm_log_show - gsm dump collection Link: https://lore.kernel.org/r/20210708165723.8594-1-rdunlap@infradead.org Cc: Jack Wang Cc: linux-scsi@vger.kernel.org Cc: "James E.J. Bottomley" Cc: "Martin K. Petersen" Acked-by: Jack Wang Signed-off-by: Randy Dunlap Signed-off-by: Martin K. Petersen --- drivers/scsi/pm8001/pm8001_ctl.c | 48 ++++++++++++++++++++----------------- drivers/scsi/pm8001/pm8001_hwi.c | 18 +++++++------- drivers/scsi/pm8001/pm8001_init.c | 29 ++++++++++++----------- drivers/scsi/pm8001/pm8001_sas.c | 41 +++++++++++++++++--------------- drivers/scsi/pm8001/pm80xx_hwi.c | 50 +++++++++++++++++++-------------------- 5 files changed, 97 insertions(+), 89 deletions(-) diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c index 0b8802beb7ce..ec05c42e8ee6 100644 --- a/drivers/scsi/pm8001/pm8001_ctl.c +++ b/drivers/scsi/pm8001/pm8001_ctl.c @@ -77,7 +77,7 @@ DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL); * @attr: device attribute (unused) * @buf: the buffer returned * - * A sysfs 'read only' shost attribute. + * A sysfs 'read-only' shost attribute. */ static ssize_t controller_fatal_error_show(struct device *cdev, struct device_attribute *attr, char *buf) @@ -149,7 +149,7 @@ static ssize_t pm8001_ctl_ila_version_show(struct device *cdev, static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL); /** - * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number + * pm8001_ctl_inactive_fw_version_show - Inactive firmware version number * @cdev: pointer to embedded class device * @attr: device attribute (unused) * @buf: the buffer returned @@ -396,6 +396,7 @@ static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL); * @cdev:pointer to embedded class device * @attr: device attribute (unused) * @buf: the buffer returned + * * A sysfs 'read-only' shost attribute. */ static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev, @@ -430,6 +431,7 @@ static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL); * @cdev:pointer to embedded class device * @attr: device attribute (unused) * @buf: the buffer returned + * * A sysfs 'read-only' shost attribute. */ @@ -464,6 +466,7 @@ static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL); * @cdev:pointer to embedded class device * @attr: device attribute (unused) * @buf:the buffer returned + * * A sysfs 'read-only' shost attribute. */ static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, @@ -555,13 +558,13 @@ static ssize_t pm8001_ctl_iop_log_show(struct device *cdev, static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL); /** - ** pm8001_ctl_fatal_log_show - fatal error logging - ** @cdev:pointer to embedded class device - ** @attr: device attribute - ** @buf: the buffer returned - ** - ** A sysfs 'read-only' shost attribute. - **/ + * pm8001_ctl_fatal_log_show - fatal error logging + * @cdev:pointer to embedded class device + * @attr: device attribute + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev, struct device_attribute *attr, char *buf) @@ -575,13 +578,13 @@ static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev, static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL); /** - ** non_fatal_log_show - non fatal error logging - ** @cdev:pointer to embedded class device - ** @attr: device attribute - ** @buf: the buffer returned - ** - ** A sysfs 'read-only' shost attribute. - **/ + * non_fatal_log_show - non fatal error logging + * @cdev:pointer to embedded class device + * @attr: device attribute + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ static ssize_t non_fatal_log_show(struct device *cdev, struct device_attribute *attr, char *buf) { @@ -620,12 +623,13 @@ static ssize_t non_fatal_count_store(struct device *cdev, static DEVICE_ATTR_RW(non_fatal_count); /** - ** pm8001_ctl_gsm_log_show - gsm dump collection - ** @cdev:pointer to embedded class device - ** @attr: device attribute (unused) - ** @buf: the buffer returned - ** A sysfs 'read-only' shost attribute. - **/ + * pm8001_ctl_gsm_log_show - gsm dump collection + * @cdev:pointer to embedded class device + * @attr: device attribute (unused) + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev, struct device_attribute *attr, char *buf) { diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 33f8217577b1..17c0f26e683a 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -384,7 +384,7 @@ static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha, /** * pm8001_bar4_shift - function is called to shift BAR base address - * @pm8001_ha : our hba card infomation + * @pm8001_ha : our hba card information * @shiftValue : shifting value in memory bar. */ int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue) @@ -1151,7 +1151,7 @@ static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha) } /** - * pm8001_chip_iounmap - which maped when initialized. + * pm8001_chip_iounmap - which mapped when initialized. * @pm8001_ha: our hba card information */ void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha) @@ -1187,10 +1187,10 @@ pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha) pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL); } - /** - * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt - * @pm8001_ha: our hba card information - */ +/** + * pm8001_chip_intx_interrupt_disable - disable PM8001 chip interrupt + * @pm8001_ha: our hba card information + */ static void pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha) { @@ -1876,8 +1876,8 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha, * @piomb: the message contents of this outbound message. * * When FW has completed a ssp request for example a IO request, after it has - * filled the SG data with the data, it will trigger this event represent - * that he has finished the job,please check the coresponding buffer. + * filled the SG data with the data, it will trigger this event representing + * that he has finished the job; please check the corresponding buffer. * So we will tell the caller who maybe waiting the result to tell upper layer * that the task has been finished. */ @@ -3522,7 +3522,7 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb) * * when sas layer find a device it will notify LLDD, then the driver register * the domain device to FW, this event is the return device ID which the FW - * has assigned, from now,inter-communication with FW is no longer using the + * has assigned, from now, inter-communication with FW is no longer using the * SAS address, use device ID which FW assigned. */ int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb) diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 313248c7bab9..47db7e0beae6 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -233,7 +233,7 @@ static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque) /** * pm8001_interrupt_handler_intx - main INTx interrupt handler. * @irq: interrupt number - * @dev_id: sas_ha structure. The HBA is retrieved from sas_has structure. + * @dev_id: sas_ha structure. The HBA is retrieved from sas_ha structure. */ static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id) @@ -439,9 +439,9 @@ err_out: } /** - * pm8001_ioremap - remap the pci high physical address to kernal virtual + * pm8001_ioremap - remap the pci high physical address to kernel virtual * address so that we can access them. - * @pm8001_ha:our hba structure. + * @pm8001_ha: our hba structure. */ static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha) { @@ -652,7 +652,7 @@ static void pm8001_post_sas_ha_init(struct Scsi_Host *shost, * pm8001_init_sas_add - initialize sas address * @pm8001_ha: our ha struct. * - * Currently we just set the fixed SAS address to our HBA,for manufacture, + * Currently we just set the fixed SAS address to our HBA, for manufacture, * it should read from the EEPROM */ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha) @@ -790,7 +790,7 @@ struct pm8001_mpi3_phy_pg_trx_config { }; /** - * pm8001_get_internal_phy_settings : Retrieves the internal PHY settings + * pm8001_get_internal_phy_settings - Retrieves the internal PHY settings * @pm8001_ha : our adapter * @phycfg : PHY config page to populate */ @@ -810,7 +810,7 @@ void pm8001_get_internal_phy_settings(struct pm8001_hba_info *pm8001_ha, } /** - * pm8001_get_external_phy_settings : Retrieves the external PHY settings + * pm8001_get_external_phy_settings - Retrieves the external PHY settings * @pm8001_ha : our adapter * @phycfg : PHY config page to populate */ @@ -830,7 +830,7 @@ void pm8001_get_external_phy_settings(struct pm8001_hba_info *pm8001_ha, } /** - * pm8001_get_phy_mask : Retrieves the mask that denotes if a PHY is int/ext + * pm8001_get_phy_mask - Retrieves the mask that denotes if a PHY is int/ext * @pm8001_ha : our adapter * @phymask : The PHY mask */ @@ -868,7 +868,7 @@ void pm8001_get_phy_mask(struct pm8001_hba_info *pm8001_ha, int *phymask) } /** - * pm8001_set_phy_settings_ven_117c_12G() : Configure ATTO 12Gb PHY settings + * pm8001_set_phy_settings_ven_117c_12G() - Configure ATTO 12Gb PHY settings * @pm8001_ha : our adapter */ static @@ -903,7 +903,7 @@ int pm8001_set_phy_settings_ven_117c_12G(struct pm8001_hba_info *pm8001_ha) } /** - * pm8001_configure_phy_settings : Configures PHY settings based on vendor ID. + * pm8001_configure_phy_settings - Configures PHY settings based on vendor ID. * @pm8001_ha : our hba. */ static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha) @@ -1053,8 +1053,8 @@ intx: * @ent: pci device id * * This function is the main initialization function, when register a new - * pci driver it is invoked, all struct an hardware initilization should be done - * here, also, register interrupt + * pci driver it is invoked, all struct and hardware initialization should be + * done here, also, register interrupt. */ static int pm8001_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) @@ -1172,10 +1172,11 @@ err_out_enable: return rc; } -/* +/** * pm8001_init_ccb_tag - allocate memory to CCB and tag. * @pm8001_ha: our hba card information. * @shost: scsi host which has been allocated outside. + * @pdev: pci device. */ static int pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha, struct Scsi_Host *shost, @@ -1270,7 +1271,7 @@ static void pm8001_pci_remove(struct pci_dev *pdev) * pm8001_pci_suspend - power management suspend main entry point * @dev: Device struct * - * Returns 0 success, anything else error. + * Return: 0 on success, anything else on error. */ static int __maybe_unused pm8001_pci_suspend(struct device *dev) { @@ -1315,7 +1316,7 @@ static int __maybe_unused pm8001_pci_suspend(struct device *dev) * pm8001_pci_resume - power management resume main entry point * @dev: Device struct * - * Returns 0 success, anything else error. + * Return: 0 on success, anything else on error. */ static int __maybe_unused pm8001_pci_resume(struct device *dev) { diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c index 6f33d821e545..48548a95327b 100644 --- a/drivers/scsi/pm8001/pm8001_sas.c +++ b/drivers/scsi/pm8001/pm8001_sas.c @@ -98,14 +98,16 @@ void pm8001_tag_init(struct pm8001_hba_info *pm8001_ha) pm8001_tag_free(pm8001_ha, i); } - /** - * pm8001_mem_alloc - allocate memory for pm8001. - * @pdev: pci device. - * @virt_addr: the allocated virtual address - * @pphys_addr_hi: the physical address high byte address. - * @pphys_addr_lo: the physical address low byte address. - * @mem_size: memory size. - */ +/** + * pm8001_mem_alloc - allocate memory for pm8001. + * @pdev: pci device. + * @virt_addr: the allocated virtual address + * @pphys_addr: DMA address for this device + * @pphys_addr_hi: the physical address high byte address. + * @pphys_addr_lo: the physical address low byte address. + * @mem_size: memory size. + * @align: requested byte alignment + */ int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr, dma_addr_t *pphys_addr, u32 *pphys_addr_hi, u32 *pphys_addr_lo, u32 mem_size, u32 align) @@ -339,7 +341,7 @@ static int pm8001_task_prep_ssp_tm(struct pm8001_hba_info *pm8001_ha, } /** - * pm8001_task_prep_ssp - the dispatcher function,prepare ssp data for ssp task + * pm8001_task_prep_ssp - the dispatcher function, prepare ssp data for ssp task * @pm8001_ha: our hba card information * @ccb: the ccb which attached to ssp task */ @@ -554,10 +556,10 @@ void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha, pm8001_tag_free(pm8001_ha, ccb_idx); } - /** - * pm8001_alloc_dev - find a empty pm8001_device - * @pm8001_ha: our hba card information - */ +/** + * pm8001_alloc_dev - find a empty pm8001_device + * @pm8001_ha: our hba card information + */ static struct pm8001_device *pm8001_alloc_dev(struct pm8001_hba_info *pm8001_ha) { u32 dev; @@ -705,7 +707,7 @@ static void pm8001_tmf_timedout(struct timer_list *t) * @parameter: ssp task parameter. * * when errors or exception happened, we may want to do something, for example - * abort the issued task which result in this execption, it is done by calling + * abort the issued task which result in this exception, it is done by calling * this function, note it is also with the task execute interface. */ static int pm8001_exec_internal_tmf_task(struct domain_device *dev, @@ -984,11 +986,12 @@ void pm8001_open_reject_retry( } /** - * pm8001_I_T_nexus_reset() - * Standard mandates link reset for ATA (type 0) and hard reset for - * SSP (type 1) , only for RECOVERY - * @dev: the device structure for the device to reset. - */ + * pm8001_I_T_nexus_reset() - reset the initiator/target connection + * @dev: the device structure for the device to reset. + * + * Standard mandates link reset for ATA (type 0) and hard reset for + * SSP (type 1), only for RECOVERY + */ int pm8001_I_T_nexus_reset(struct domain_device *dev) { int rc = TMF_RESP_FUNC_FAILED; diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 45ecd9639977..6ffe17b849ae 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -140,7 +140,7 @@ ssize_t pm80xx_get_fatal_dump(struct device *cdev, pm8001_ha->fatal_bar_loc = 0; } - /* Read until accum_len is retrived */ + /* Read until accum_len is retrieved */ accum_len = pm8001_mr32(fatal_table_address, MPI_FATAL_EDUMP_TABLE_ACCUM_LEN); /* Determine length of data between previously stored transfer length @@ -1011,7 +1011,7 @@ static int mpi_init_check(struct pm8001_hba_info *pm8001_ha) value); return -EBUSY; } - /* check the MPI-State for initialization upto 100ms*/ + /* check the MPI-State for initialization up to 100ms*/ max_wait_count = 5;/* 100 msec */ do { msleep(FW_READY_INTERVAL); @@ -1093,7 +1093,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha) value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0); - /** + /* * lower 26 bits of SCRATCHPAD0 register describes offset within the * PCIe BAR where the MPI configuration table is present */ @@ -1101,7 +1101,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha) pm8001_dbg(pm8001_ha, DEV, "Scratchpad 0 Offset: 0x%x value 0x%x\n", offset, value); - /** + /* * Upper 6 bits describe the offset within PCI config space where BAR * is located. */ @@ -1109,7 +1109,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha) pcibar = get_pci_bar_index(pcilogic); pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 PCI BAR: %d\n", pcibar); - /** + /* * Make sure the offset falls inside the ioremapped PCI BAR */ if (offset > pm8001_ha->io_mem[pcibar].memsize) { @@ -1121,7 +1121,7 @@ static int init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha) pm8001_ha->main_cfg_tbl_addr = base_addr = pm8001_ha->io_mem[pcibar].memvirtaddr + offset; - /** + /* * Validate main configuration table address: first DWord should read * "PMCS" */ @@ -1385,7 +1385,7 @@ pm80xx_get_encrypt_info(struct pm8001_hba_info *pm8001_ha) } /** - * pm80xx_encrypt_update - update flash with encryption informtion + * pm80xx_encrypt_update - update flash with encryption information * @pm8001_ha: our hba card information. */ static int pm80xx_encrypt_update(struct pm8001_hba_info *pm8001_ha) @@ -1422,7 +1422,7 @@ static int pm80xx_encrypt_update(struct pm8001_hba_info *pm8001_ha) } /** - * pm80xx_chip_init - the main init function that initialize whole PM8001 chip. + * pm80xx_chip_init - the main init function that initializes whole PM8001 chip. * @pm8001_ha: our hba card information */ static int pm80xx_chip_init(struct pm8001_hba_info *pm8001_ha) @@ -1541,7 +1541,7 @@ static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha) } /** - * pm80xx_fatal_errors - returns non zero *ONLY* when fatal errors + * pm80xx_fatal_errors - returns non-zero *ONLY* when fatal errors * @pm8001_ha: our hba card information * * Fatal errors are recoverable only after a host reboot. @@ -1576,8 +1576,8 @@ pm80xx_fatal_errors(struct pm8001_hba_info *pm8001_ha) } /** - * pm80xx_chip_soft_rst - soft reset the PM8001 chip, so that the clear all - * the FW register status to the originated status. + * pm80xx_chip_soft_rst - soft reset the PM8001 chip, so that all + * FW register status are reset to the originated status. * @pm8001_ha: our hba card information */ @@ -1895,13 +1895,13 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha, } /** - * mpi_ssp_completion- process the event that FW response to the SSP request. + * mpi_ssp_completion - process the event that FW response to the SSP request. * @pm8001_ha: our hba card information * @piomb: the message contents of this outbound message. * * When FW has completed a ssp request for example a IO request, after it has - * filled the SG data with the data, it will trigger this event represent - * that he has finished the job,please check the coresponding buffer. + * filled the SG data with the data, it will trigger this event representing + * that he has finished the job; please check the corresponding buffer. * So we will tell the caller who maybe waiting the result to tell upper layer * that the task has been finished. */ @@ -3217,7 +3217,7 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) } /** - * pm80xx_hw_event_ack_req- For PM8001,some events need to acknowage to FW. + * pm80xx_hw_event_ack_req- For PM8001, some events need to acknowledge to FW. * @pm8001_ha: our hba card information * @Qnum: the outbound queue message number. * @SEA: source of event to ack @@ -3275,7 +3275,7 @@ static void hw_event_port_recover(struct pm8001_hba_info *pm8001_ha, } /** - * hw_event_sas_phy_up -FW tells me a SAS phy up event. + * hw_event_sas_phy_up - FW tells me a SAS phy up event. * @pm8001_ha: our hba card information * @piomb: IO message buffer */ @@ -3353,7 +3353,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb) } /** - * hw_event_sata_phy_up -FW tells me a SATA phy up event. + * hw_event_sata_phy_up - FW tells me a SATA phy up event. * @pm8001_ha: our hba card information * @piomb: IO message buffer */ @@ -3400,7 +3400,7 @@ hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb) } /** - * hw_event_phy_down -we should notify the libsas the phy is down. + * hw_event_phy_down - we should notify the libsas the phy is down. * @pm8001_ha: our hba card information * @piomb: IO message buffer */ @@ -3500,7 +3500,7 @@ static int mpi_phy_start_resp(struct pm8001_hba_info *pm8001_ha, void *piomb) } /** - * mpi_thermal_hw_event -The hw event has come. + * mpi_thermal_hw_event - a thermal hw event has come. * @pm8001_ha: our hba card information * @piomb: IO message buffer */ @@ -3530,7 +3530,7 @@ static int mpi_thermal_hw_event(struct pm8001_hba_info *pm8001_ha, void *piomb) } /** - * mpi_hw_event -The hw event has come. + * mpi_hw_event - The hw event has come. * @pm8001_ha: our hba card information * @piomb: IO message buffer */ @@ -4025,7 +4025,7 @@ static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb) case OPC_OUB_SET_DEV_INFO: pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEV_INFO\n"); break; - /* spcv specifc commands */ + /* spcv specific commands */ case OPC_OUB_PHY_START_RESP: pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_PHY_START_RESP opcode:%x\n", opc); @@ -4186,7 +4186,7 @@ static void build_smp_cmd(u32 deviceID, __le32 hTag, } /** - * pm80xx_chip_smp_req - send a SMP task to FW + * pm80xx_chip_smp_req - send an SMP task to FW * @pm8001_ha: our hba card information. * @ccb: the ccb information this request used. */ @@ -4346,7 +4346,7 @@ static int check_enc_sat_cmd(struct sas_task *task) } /** - * pm80xx_chip_ssp_io_req - send a SSP task to FW + * pm80xx_chip_ssp_io_req - send an SSP task to FW * @pm8001_ha: our hba card information. * @ccb: the ccb information this request used. */ @@ -4750,13 +4750,13 @@ pm80xx_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id) payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE | LINKMODE_AUTO | pm8001_ha->link_rate | phy_id); /* SSC Disable and SAS Analog ST configuration */ - /** + /* payload.ase_sh_lm_slr_phyid = cpu_to_le32(SSC_DISABLE_30 | SAS_ASE | SPINHOLD_DISABLE | LINKMODE_AUTO | LINKRATE_15 | LINKRATE_30 | LINKRATE_60 | phy_id); Have to add "SAS PHY Analog Setup SPASTI 1 Byte" Based on need - **/ + */ payload.sas_identify.dev_type = SAS_END_DEVICE; payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL; -- cgit v1.2.3 From aa0dc6a73309f1fc779f4560a60ee766a3891adc Mon Sep 17 00:00:00 2001 From: Sreekanth Reddy Date: Wed, 7 Jul 2021 13:47:56 +0530 Subject: scsi: mpi3mr: Fix W=1 compilation warnings Fix for the following W=1 compilation warning: 'strncpy' output may be truncated copying 16 bytes from a string of length 64 Link: https://lore.kernel.org/r/20210707081756.20922-1-sreekanth.reddy@broadcom.com Reported-by: kernel test robot Signed-off-by: Sreekanth Reddy Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi3mr_fw.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 9eceafca59bc..2dba2b0af166 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -2607,14 +2607,13 @@ static int mpi3mr_issue_iocinit(struct mpi3mr_ioc *mrioc) goto out; } drv_info->information_length = cpu_to_le32(data_len); - strncpy(drv_info->driver_signature, "Broadcom", sizeof(drv_info->driver_signature)); - strncpy(drv_info->os_name, utsname()->sysname, sizeof(drv_info->os_name)); - drv_info->os_name[sizeof(drv_info->os_name) - 1] = 0; - strncpy(drv_info->os_version, utsname()->release, sizeof(drv_info->os_version)); - drv_info->os_version[sizeof(drv_info->os_version) - 1] = 0; - strncpy(drv_info->driver_name, MPI3MR_DRIVER_NAME, sizeof(drv_info->driver_name)); - strncpy(drv_info->driver_version, MPI3MR_DRIVER_VERSION, sizeof(drv_info->driver_version)); - strncpy(drv_info->driver_release_date, MPI3MR_DRIVER_RELDATE, sizeof(drv_info->driver_release_date)); + strscpy(drv_info->driver_signature, "Broadcom", sizeof(drv_info->driver_signature)); + strscpy(drv_info->os_name, utsname()->sysname, sizeof(drv_info->os_name)); + strscpy(drv_info->os_version, utsname()->release, sizeof(drv_info->os_version)); + strscpy(drv_info->driver_name, MPI3MR_DRIVER_NAME, sizeof(drv_info->driver_name)); + strscpy(drv_info->driver_version, MPI3MR_DRIVER_VERSION, sizeof(drv_info->driver_version)); + strscpy(drv_info->driver_release_date, MPI3MR_DRIVER_RELDATE, + sizeof(drv_info->driver_release_date)); drv_info->driver_capabilities = 0; memcpy((u8 *)&mrioc->driver_info, (u8 *)drv_info, sizeof(mrioc->driver_info)); -- cgit v1.2.3 From 053c16ac89050ef0e8ab9dc1edaf157bf104c8c6 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 30 Jun 2021 17:51:17 -0700 Subject: scsi: ufs: core: Add missing host_lock in ufshcd_vops_setup_xfer_req() This patch adds a host_lock which existed before on ufshcd_vops_setup_xfer_req(). Link: https://lore.kernel.org/r/20210701005117.3846179-1-jaegeuk@kernel.org Fixes: a45f937110fa ("scsi: ufs: Optimize host lock on transfer requests send/compl paths") Cc: Stanley Chu Cc: Can Guo Cc: Bean Huo Cc: Bart Van Assche Cc: Asutosh Das Reviewed-by: Bart Van Assche Signed-off-by: Jaegeuk Kim Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index c98d540ac044..194755c9ddfe 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -1229,8 +1229,13 @@ static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba, static inline void ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int tag, bool is_scsi_cmd) { - if (hba->vops && hba->vops->setup_xfer_req) - return hba->vops->setup_xfer_req(hba, tag, is_scsi_cmd); + if (hba->vops && hba->vops->setup_xfer_req) { + unsigned long flags; + + spin_lock_irqsave(hba->host->host_lock, flags); + hba->vops->setup_xfer_req(hba, tag, is_scsi_cmd); + spin_unlock_irqrestore(hba->host->host_lock, flags); + } } static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba, -- cgit v1.2.3