diff options
Diffstat (limited to 'drivers/misc/mei/init.c')
| -rw-r--r-- | drivers/misc/mei/init.c | 38 |
1 files changed, 33 insertions, 5 deletions
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 7901d076c127..9306219d5675 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -54,6 +54,35 @@ const char *mei_pg_state_str(enum mei_pg_state state) #undef MEI_PG_STATE } +/** + * mei_fw_status2str - convert fw status registers to printable string + * + * @fw_status: firmware status + * @buf: string buffer at minimal size MEI_FW_STATUS_STR_SZ + * @len: buffer len must be >= MEI_FW_STATUS_STR_SZ + * + * Return: number of bytes written or -EINVAL if buffer is to small + */ +ssize_t mei_fw_status2str(struct mei_fw_status *fw_status, + char *buf, size_t len) +{ + ssize_t cnt = 0; + int i; + + buf[0] = '\0'; + + if (len < MEI_FW_STATUS_STR_SZ) + return -EINVAL; + + for (i = 0; i < fw_status->count; i++) + cnt += scnprintf(buf + cnt, len - cnt, "%08X ", + fw_status->status[i]); + + /* drop last space */ + buf[cnt] = '\0'; + return cnt; +} +EXPORT_SYMBOL_GPL(mei_fw_status2str); /** * mei_cancel_work - Cancel mei background jobs @@ -86,12 +115,11 @@ int mei_reset(struct mei_device *dev) state != MEI_DEV_DISABLED && state != MEI_DEV_POWER_DOWN && state != MEI_DEV_POWER_UP) { - struct mei_fw_status fw_status; + char fw_sts_str[MEI_FW_STATUS_STR_SZ]; - mei_fw_status(dev, &fw_status); - dev_warn(dev->dev, - "unexpected reset: dev_state = %s " FW_STS_FMT "\n", - mei_dev_state_str(state), FW_STS_PRM(fw_status)); + mei_fw_status_str(dev, fw_sts_str, MEI_FW_STATUS_STR_SZ); + dev_warn(dev->dev, "unexpected reset: dev_state = %s fw status = %s\n", + mei_dev_state_str(state), fw_sts_str); } /* we're already in reset, cancel the init timer |