wl1271: refactor debugfs function generation code

refactor wl1271_debugfs by using a format&copy function, instead of
duplicating the code for each generated function.

this change reduces about 3Kb from wl1271.ko

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>

diff --git a/drivers/net/wireless/wl12xx/wl1271_debugfs.c b/drivers/net/wireless/wl12xx/wl1271_debugfs.c
index 66c2b90ddfd461df7471aef34e7c3335c84a360b..3468b849852e05493979fc0c29fe62c04310924d 100644 (file)
--- a/drivers/net/wireless/wl12xx/wl1271_debugfs.c
+++ b/drivers/net/wireless/wl12xx/wl1271_debugfs.c
@@ -35,17 +35,28 @@
 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
 
 /* debugfs macros idea from mac80211 */
+#define DEBUGFS_FORMAT_BUFFER_SIZE 100
+static int wl1271_format_buffer(char __user *userbuf, size_t count,
+                                   loff_t *ppos, char *fmt, ...)
+{
+       va_list args;
+       char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
+       int res;
 
-#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)             \
+       va_start(args, fmt);
+       res = vscnprintf(buf, sizeof(buf), fmt, args);
+       va_end(args);
+
+       return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+#define DEBUGFS_READONLY_FILE(name, fmt, value...)                     \
 static ssize_t name## _read(struct file *file, char __user *userbuf,   \
                            size_t count, loff_t *ppos)                 \
 {                                                                      \
        struct wl1271 *wl = file->private_data;                         \
-       char buf[buflen];                                               \
-       int res;                                                        \
-                                                                       \
-       res = scnprintf(buf, buflen, fmt "\n", ##value);                \
-       return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+       return wl1271_format_buffer(userbuf, count, ppos,               \
+                                   fmt "\n", ##value);                 \
 }                                                                      \
                                                                        \
 static const struct file_operations name## _ops = {                    \
@@ -69,20 +80,17 @@ static const struct file_operations name## _ops = {                 \
                wl->debugfs.name = NULL;                                \
        } while (0)
 
-#define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt)                   \
+#define DEBUGFS_FWSTATS_FILE(sub, name, fmt)                           \
 static ssize_t sub## _ ##name## _read(struct file *file,               \
                                      char __user *userbuf,             \
                                      size_t count, loff_t *ppos)       \
 {                                                                      \
        struct wl1271 *wl = file->private_data;                         \
-       char buf[buflen];                                               \
-       int res;                                                        \
                                                                        \
        wl1271_debugfs_update_stats(wl);                                \
                                                                        \
-       res = scnprintf(buf, buflen, fmt "\n",                          \
-                       wl->stats.fw_stats->sub.name);                  \
-       return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+       return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",     \
+                                   wl->stats.fw_stats->sub.name);      \
 }                                                                      \
                                                                        \
 static const struct file_operations sub## _ ##name## _ops = {          \
@@ -126,100 +134,99 @@ static int wl1271_open_file_generic(struct inode *inode, struct file *file)
        return 0;
 }
 
-DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
-DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
-DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
-DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
-DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
-DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
+DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
+
+DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
+DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
+DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
+DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
+DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
+DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
+DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
+DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
+
+DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
+DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
+DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
+DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
+
+DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
+DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
+DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
+DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
+DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
+DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
+DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
+DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
+DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
+DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
+DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
+DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
+DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
+DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
+DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
+
+DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
+DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
 /* skipping wep.reserved */
-DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
-DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
-DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
-DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
-DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
+DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
+DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
+DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
+DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
+
+DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
+DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
 /* skipping cont_miss_bcns_spread for now */
-DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
-DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
-DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
-DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
-DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
-DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
-DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
-DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
-DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
-DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
-DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
-DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
-DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
-DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
-DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
-DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
-DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
-DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
-DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
-DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");
-
-DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
-                    20, "%u");
-DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
-DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");
-
-DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
-DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
+DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
+
+DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
+DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
+
+DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
+DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
+DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
+DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
+DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
+DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
+
+DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
+DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
+DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
+DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
+DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
+DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
+DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
+DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
+
+DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
+DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
+DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
+DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
+
+DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
+DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
+
+DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
+DEBUGFS_READONLY_FILE(excessive_retries, "%u",
                      wl->stats.excessive_retries);
 
 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,