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Message-ID: <20251103130501.40158-1-i.shihao.999@gmail.com> Date: Mon, 3 Nov 2025 18:35:01 +0530 From: Shi Hao <i.shihao.999@...il.com> To: sathya.prakash@...adcom.com Cc: sreekanth.reddy@...adcom.com, suganath-prabu.subramani@...adcom.com, James.Bottomley@...senPartnership.com, martin.petersen@...cle.com, MPT-FusionLinux.pdl@...adcom.com, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org, i.shihao.999@...il.com Subject: [PATCH] scsi: mpt3sas: use sysfs_emit function in sysfs Replace snprintf() with sysfs_emit() function as it removes unnecessary use cases of PAGE_SIZE also it is much preferred for sysfs functions. This conversion makes code more maintainable and follows current kernel code guidelines. Signed-off-by: Shi Hao <i.shihao.999@...il.com> --- drivers/scsi/mpt3sas/mpt3sas_ctl.c | 44 +++++++++++++++--------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c index 3b951589feeb..749f7163c7ee 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -3149,7 +3149,7 @@ version_fw_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", + return sysfs_emit(buf, "%02d.%02d.%02d.%02d\n", (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, @@ -3174,7 +3174,7 @@ version_bios_show(struct device *cdev, struct device_attribute *attr, u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion); - return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", + return sysfs_emit(buf, "%02d.%02d.%02d.%02d\n", (version & 0xFF000000) >> 24, (version & 0x00FF0000) >> 16, (version & 0x0000FF00) >> 8, @@ -3197,7 +3197,7 @@ version_mpi_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%03x.%02x\n", + return sysfs_emit(buf, "%03x.%02x\n", ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8); } static DEVICE_ATTR_RO(version_mpi); @@ -3236,7 +3236,7 @@ version_nvdata_persistent_show(struct device *cdev, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%08xh\n", + return sysfs_emit(buf, "%08xh\n", le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word)); } static DEVICE_ATTR_RO(version_nvdata_persistent); @@ -3256,7 +3256,7 @@ version_nvdata_default_show(struct device *cdev, struct device_attribute struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%08xh\n", + return sysfs_emit(buf, "%08xh\n", le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word)); } static DEVICE_ATTR_RO(version_nvdata_default); @@ -3336,7 +3336,7 @@ io_delay_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); + return sysfs_emit(buf, "%02d\n", ioc->io_missing_delay); } static DEVICE_ATTR_RO(io_delay); @@ -3358,7 +3358,7 @@ device_delay_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); + return sysfs_emit(buf, "%02d\n", ioc->device_missing_delay); } static DEVICE_ATTR_RO(device_delay); @@ -3379,7 +3379,7 @@ fw_queue_depth_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit); + return sysfs_emit(buf, "%02d\n", ioc->facts.RequestCredit); } static DEVICE_ATTR_RO(fw_queue_depth); @@ -3401,7 +3401,7 @@ host_sas_address_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "0x%016llx\n", + return sysfs_emit(buf, "0x%016llx\n", (unsigned long long)ioc->sas_hba.sas_address); } static DEVICE_ATTR_RO(host_sas_address); @@ -3421,7 +3421,7 @@ logging_level_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level); + return sysfs_emit(buf, "%08xh\n", ioc->logging_level); } static ssize_t logging_level_store(struct device *cdev, struct device_attribute *attr, @@ -3457,7 +3457,7 @@ fwfault_debug_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug); + return sysfs_emit(buf, "%d\n", ioc->fwfault_debug); } static ssize_t fwfault_debug_store(struct device *cdev, struct device_attribute *attr, @@ -3494,7 +3494,7 @@ ioc_reset_count_show(struct device *cdev, struct device_attribute *attr, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count); + return sysfs_emit(buf, "%d\n", ioc->ioc_reset_count); } static DEVICE_ATTR_RO(ioc_reset_count); @@ -3522,7 +3522,7 @@ reply_queue_count_show(struct device *cdev, else reply_queue_count = 1; - return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count); + return sysfs_emit(buf, "%d\n", reply_queue_count); } static DEVICE_ATTR_RO(reply_queue_count); @@ -3644,7 +3644,7 @@ host_trace_buffer_size_show(struct device *cdev, size = le32_to_cpu(request_data->Size); ioc->ring_buffer_sz = size; - return snprintf(buf, PAGE_SIZE, "%d\n", size); + return sysfs_emit(buf, "%d\n", size); } static DEVICE_ATTR_RO(host_trace_buffer_size); @@ -3731,12 +3731,12 @@ host_trace_buffer_enable_show(struct device *cdev, if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) || ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)) - return snprintf(buf, PAGE_SIZE, "off\n"); + return sysfs_emit(buf, "off\n"); else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & MPT3_DIAG_BUFFER_IS_RELEASED)) - return snprintf(buf, PAGE_SIZE, "release\n"); + return sysfs_emit(buf, "release\n"); else - return snprintf(buf, PAGE_SIZE, "post\n"); + return sysfs_emit(buf, "post\n"); } static ssize_t @@ -4152,7 +4152,7 @@ drv_support_bitmap_show(struct device *cdev, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "0x%08x\n", ioc->drv_support_bitmap); + return sysfs_emit(buf, "0x%08x\n", ioc->drv_support_bitmap); } static DEVICE_ATTR_RO(drv_support_bitmap); @@ -4172,7 +4172,7 @@ enable_sdev_max_qd_show(struct device *cdev, struct Scsi_Host *shost = class_to_shost(cdev); struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); - return snprintf(buf, PAGE_SIZE, "%d\n", ioc->enable_sdev_max_qd); + return sysfs_emit(buf, "%d\n", ioc->enable_sdev_max_qd); } /** @@ -4320,7 +4320,7 @@ sas_address_show(struct device *dev, struct device_attribute *attr, struct scsi_device *sdev = to_scsi_device(dev); struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata; - return snprintf(buf, PAGE_SIZE, "0x%016llx\n", + return sysfs_emit(buf, "0x%016llx\n", (unsigned long long)sas_device_priv_data->sas_target->sas_address); } static DEVICE_ATTR_RO(sas_address); @@ -4342,7 +4342,7 @@ sas_device_handle_show(struct device *dev, struct device_attribute *attr, struct scsi_device *sdev = to_scsi_device(dev); struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata; - return snprintf(buf, PAGE_SIZE, "0x%04x\n", + return sysfs_emit(buf, "0x%04x\n", sas_device_priv_data->sas_target->handle); } static DEVICE_ATTR_RO(sas_device_handle); @@ -4380,7 +4380,7 @@ sas_ncq_prio_enable_show(struct device *dev, struct scsi_device *sdev = to_scsi_device(dev); struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata; - return snprintf(buf, PAGE_SIZE, "%d\n", + return sysfs_emit(buf, "%d\n", sas_device_priv_data->ncq_prio_enable); } -- 2.51.0
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