* [PATCH] scsi: pmcraid: Use sysfs_emit in show function callback
@ 2023-01-30 20:22 Deepak R Varma
0 siblings, 0 replies; only message in thread
From: Deepak R Varma @ 2023-01-30 20:22 UTC (permalink / raw)
To: James E.J. Bottomley, Martin K. Petersen, linux-scsi, linux-kernel
Cc: Saurabh Singh Sengar, Praveen Kumar, Deepak R Varma
According to Documentation/filesystems/sysfs.rst, show() callback
function should only use sysfs_emit() or sysfs_emit_at() instead
of sprint() family functions when formatting the device attribute
values to be returned to user space.
Issue identified using the device_attr_show.cocci Coccinelle script.
Signed-off-by: Deepak R Varma <drv@mailo.com>
---
drivers/scsi/pmcraid.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 836ddc476764..2705dcaa7798 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -3493,7 +3493,7 @@ static ssize_t pmcraid_show_log_level(
struct Scsi_Host *shost = class_to_shost(dev);
struct pmcraid_instance *pinstance =
(struct pmcraid_instance *)shost->hostdata;
- return snprintf(buf, PAGE_SIZE, "%d\n", pinstance->current_log_level);
+ return sysfs_emit(buf, "%d\n", pinstance->current_log_level);
}
/**
@@ -3554,8 +3554,7 @@ static ssize_t pmcraid_show_drv_version(
char *buf
)
{
- return snprintf(buf, PAGE_SIZE, "version: %s\n",
- PMCRAID_DRIVER_VERSION);
+ return sysfs_emit(buf, "version: %s\n", PMCRAID_DRIVER_VERSION);
}
static struct device_attribute pmcraid_driver_version_attr = {
@@ -3588,9 +3587,8 @@ static ssize_t pmcraid_show_adapter_id(
pinstance->pdev->devfn;
u32 aen_group = pmcraid_event_family.id;
- return snprintf(buf, PAGE_SIZE,
- "adapter id: %d\nminor: %d\naen group: %d\n",
- adapter_id, MINOR(pinstance->cdev.dev), aen_group);
+ return sysfs_emit(buf, "adapter id: %d\nminor: %d\naen group: %d\n",
+ adapter_id, MINOR(pinstance->cdev.dev), aen_group);
}
static struct device_attribute pmcraid_adapter_id_attr = {
--
2.34.1
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