[PATCH] scsi: pm8001: Use sysfs_emit in show function callsbacks
From: Deepak R Varma
Date: Thu Dec 08 2022 - 15:12:06 EST
According to Documentation/filesystems/sysfs.rst, the show() callback
function of kobject attributes should strictly use sysfs_emit instead
of sprintf family functions.
Issue identified using the coccinelle device_attr_show.cocci script.
Signed-off-by: Deepak R Varma <drv@xxxxxxxxx>
---
drivers/scsi/pm8001/pm8001_ctl.c | 48 +++++++++++++++-----------------
1 file changed, 22 insertions(+), 26 deletions(-)
diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c
index 73f036bed128..8cfdf9b412c9 100644
--- a/drivers/scsi/pm8001/pm8001_ctl.c
+++ b/drivers/scsi/pm8001/pm8001_ctl.c
@@ -61,10 +61,10 @@ static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return sysfs_emit(buf, "%d\n",
pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev);
} else {
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return sysfs_emit(buf, "%d\n",
pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev);
}
}
@@ -86,7 +86,7 @@ static ssize_t controller_fatal_error_show(struct device *cdev,
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return sysfs_emit(buf, "%d\n",
pm8001_ha->controller_fatal_error);
}
static DEVICE_ATTR_RO(controller_fatal_error);
@@ -107,13 +107,13 @@ static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
- return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
+ return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8),
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev));
} else {
- return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
+ return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8),
@@ -138,7 +138,7 @@ static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id != chip_8001) {
- return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
+ return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8),
@@ -164,7 +164,7 @@ static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev,
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id != chip_8001) {
- return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
+ return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8),
@@ -191,10 +191,10 @@ static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return sysfs_emit(buf, "%d\n",
pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
} else {
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return sysfs_emit(buf, "%d\n",
pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
}
}
@@ -215,13 +215,11 @@ static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
- return snprintf(buf, PAGE_SIZE, "%04d\n",
- (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
- );
+ return sysfs_emit(buf, "%04d\n",
+ (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16));
} else {
- return snprintf(buf, PAGE_SIZE, "%04d\n",
- (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
- );
+ return sysfs_emit(buf, "%04d\n",
+ (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16));
}
}
static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
@@ -242,13 +240,11 @@ static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
- return snprintf(buf, PAGE_SIZE, "%04d\n",
- pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
- );
+ return sysfs_emit(buf, "%04d\n",
+ pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF);
} else {
- return snprintf(buf, PAGE_SIZE, "%04d\n",
- pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
- );
+ return sysfs_emit(buf, "%04d\n",
+ pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF);
}
}
static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
@@ -315,7 +311,7 @@ static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
- return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
+ return sysfs_emit(buf, "0x%016llx\n",
be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
}
static DEVICE_ATTR(host_sas_address, S_IRUGO,
@@ -336,7 +332,7 @@ static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
- return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
+ return sysfs_emit(buf, "%08xh\n", pm8001_ha->logging_level);
}
static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
@@ -517,7 +513,7 @@ static ssize_t event_log_size_show(struct device *cdev,
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return sysfs_emit(buf, "%d\n",
pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size);
}
static DEVICE_ATTR_RO(event_log_size);
@@ -604,7 +600,7 @@ static ssize_t non_fatal_count_show(struct device *cdev,
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
- return snprintf(buf, PAGE_SIZE, "%08x",
+ return sysfs_emit(buf, "%08x",
pm8001_ha->non_fatal_count);
}
@@ -884,7 +880,7 @@ static ssize_t pm8001_show_update_fw(struct device *cdev,
if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
pm8001_ha->fw_status = FLASH_OK;
- return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
+ return sysfs_emit(buf, "status=%x %s\n",
flash_error_table[i].err_code,
flash_error_table[i].reason);
}
--
2.34.1