diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 51 |
1 files changed, 19 insertions, 32 deletions
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index f19f0f967e28..367616a408b6 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -49,11 +49,17 @@ static int handle_one_recv_msg(struct ipmi_smi *intf, static bool initialized; static bool drvregistered; +/* Numbers in this enumerator should be mapped to ipmi_panic_event_str */ enum ipmi_panic_event_op { IPMI_SEND_PANIC_EVENT_NONE, IPMI_SEND_PANIC_EVENT, - IPMI_SEND_PANIC_EVENT_STRING + IPMI_SEND_PANIC_EVENT_STRING, + IPMI_SEND_PANIC_EVENT_MAX }; + +/* Indices in this array should be mapped to enum ipmi_panic_event_op */ +static const char *const ipmi_panic_event_str[] = { "none", "event", "string", NULL }; + #ifdef CONFIG_IPMI_PANIC_STRING #define IPMI_PANIC_DEFAULT IPMI_SEND_PANIC_EVENT_STRING #elif defined(CONFIG_IPMI_PANIC_EVENT) @@ -68,46 +74,27 @@ static int panic_op_write_handler(const char *val, const struct kernel_param *kp) { char valcp[16]; - char *s; - - strncpy(valcp, val, 15); - valcp[15] = '\0'; + int e; - s = strstrip(valcp); - - if (strcmp(s, "none") == 0) - ipmi_send_panic_event = IPMI_SEND_PANIC_EVENT_NONE; - else if (strcmp(s, "event") == 0) - ipmi_send_panic_event = IPMI_SEND_PANIC_EVENT; - else if (strcmp(s, "string") == 0) - ipmi_send_panic_event = IPMI_SEND_PANIC_EVENT_STRING; - else - return -EINVAL; + strscpy(valcp, val, sizeof(valcp)); + e = match_string(ipmi_panic_event_str, -1, strstrip(valcp)); + if (e < 0) + return e; + ipmi_send_panic_event = e; return 0; } static int panic_op_read_handler(char *buffer, const struct kernel_param *kp) { - switch (ipmi_send_panic_event) { - case IPMI_SEND_PANIC_EVENT_NONE: - strcpy(buffer, "none\n"); - break; - - case IPMI_SEND_PANIC_EVENT: - strcpy(buffer, "event\n"); - break; - - case IPMI_SEND_PANIC_EVENT_STRING: - strcpy(buffer, "string\n"); - break; + const char *event_str; - default: - strcpy(buffer, "???\n"); - break; - } + if (ipmi_send_panic_event >= IPMI_SEND_PANIC_EVENT_MAX) + event_str = "???"; + else + event_str = ipmi_panic_event_str[ipmi_send_panic_event]; - return strlen(buffer); + return sprintf(buffer, "%s\n", event_str); } static const struct kernel_param_ops panic_op_ops = { |