scsi: aacraid: Added sysfs for driver version

Added support to retrieve driver version from a new sysfs variable called
driver_version. It makes it easier for the user to figure out the driver
version that is currently running.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index ab4f1e7870b940093e160f4e7e6f000023a9475e..df027847f20831b25c23faffbd972b1afbb68405 100644 (file)
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1131,6 +1131,13 @@ static ssize_t aac_show_bios_version(struct device *device,
        return len;
 }
 
+static ssize_t aac_show_driver_version(struct device *device,
+                                       struct device_attribute *attr,
+                                       char *buf)
+{
+       return snprintf(buf, PAGE_SIZE, "%s\n", aac_driver_version);
+}
+
 static ssize_t aac_show_serial_number(struct device *device,
                               struct device_attribute *attr, char *buf)
 {
@@ -1241,6 +1248,13 @@ static struct device_attribute aac_bios_version = {
        },
        .show = aac_show_bios_version,
 };
+static struct device_attribute aac_lld_version = {
+       .attr = {
+               .name = "driver_version",
+               .mode = 0444,
+       },
+       .show = aac_show_driver_version,
+};
 static struct device_attribute aac_serial_number = {
        .attr = {
                .name = "serial_number",
@@ -1278,6 +1292,7 @@ static struct device_attribute *aac_attrs[] = {
        &aac_kernel_version,
        &aac_monitor_version,
        &aac_bios_version,
+       &aac_lld_version,
        &aac_serial_number,
        &aac_max_channel,
        &aac_max_id,