diff options
| -rw-r--r-- | drivers/usb/atm/cxacru.c | 73 |
1 files changed, 31 insertions, 42 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 8bcf7fe1dd80..1bc884051e0f 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -171,7 +171,7 @@ struct cxacru_data { struct delayed_work poll_work; u32 card_info[CXINF_MAX]; struct mutex poll_state_serialize; - int poll_state; + enum cxacru_poll_state poll_state; /* contol handles */ struct mutex cm_serialize; @@ -226,58 +226,48 @@ static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf) static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf) { - if (unlikely(value < 0)) { - return snprintf(buf, PAGE_SIZE, "%d.%02u\n", - value / 100, -value % 100); - } else { - return snprintf(buf, PAGE_SIZE, "%d.%02u\n", - value / 100, value % 100); - } + return snprintf(buf, PAGE_SIZE, "%d.%02u\n", + value / 100, abs(value) % 100); } static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf) { - switch (value) { - case 0: return snprintf(buf, PAGE_SIZE, "no\n"); - case 1: return snprintf(buf, PAGE_SIZE, "yes\n"); - default: return 0; - } + static char *str[] = { "no", "yes" }; + if (unlikely(value >= ARRAY_SIZE(str))) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf) { - switch (value) { - case 1: return snprintf(buf, PAGE_SIZE, "not connected\n"); - case 2: return snprintf(buf, PAGE_SIZE, "connected\n"); - case 3: return snprintf(buf, PAGE_SIZE, "lost\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { NULL, "not connected", "connected", "lost" }; + if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf) { - switch (value) { - case 0: return snprintf(buf, PAGE_SIZE, "down\n"); - case 1: return snprintf(buf, PAGE_SIZE, "attempting to activate\n"); - case 2: return snprintf(buf, PAGE_SIZE, "training\n"); - case 3: return snprintf(buf, PAGE_SIZE, "channel analysis\n"); - case 4: return snprintf(buf, PAGE_SIZE, "exchange\n"); - case 5: return snprintf(buf, PAGE_SIZE, "up\n"); - case 6: return snprintf(buf, PAGE_SIZE, "waiting\n"); - case 7: return snprintf(buf, PAGE_SIZE, "initialising\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { "down", "attempting to activate", + "training", "channel analysis", "exchange", "up", + "waiting", "initialising" + }; + if (unlikely(value >= ARRAY_SIZE(str))) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf) { - switch (value) { - case 0: return 0; - case 1: return snprintf(buf, PAGE_SIZE, "ANSI T1.413\n"); - case 2: return snprintf(buf, PAGE_SIZE, "ITU-T G.992.1 (G.DMT)\n"); - case 3: return snprintf(buf, PAGE_SIZE, "ITU-T G.992.2 (G.LITE)\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { + NULL, + "ANSI T1.413", + "ITU-T G.992.1 (G.DMT)", + "ITU-T G.992.2 (G.LITE)" + }; + if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } /* @@ -308,11 +298,10 @@ static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev, struct cxacru_data *instance = usbatm_instance->driver_data; u32 value = instance->card_info[CXINF_LINE_STARTABLE]; - switch (value) { - case 0: return snprintf(buf, PAGE_SIZE, "running\n"); - case 1: return snprintf(buf, PAGE_SIZE, "stopped\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { "running", "stopped" }; + if (unlikely(value >= ARRAY_SIZE(str))) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev, |