diff options
| author | Dr. David Alan Gilbert <linux@treblig.org> | 2024-12-26 01:13:54 +0000 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2025-01-10 15:12:38 +0200 |
| commit | 413859e909a425a04a221240e1066e48cd2220a2 (patch) | |
| tree | e9bc170d15f832484dae5cfa6dc1561caa6a1443 | |
| parent | 280c8b39050bc19fe78ca259d68328dd23bc9599 (diff) | |
wifi: iwlegacy: Remove unused il3945_calc_db_from_ratio()
The last use of il3945_calc_db_from_ratio() was removed in 2010 by
commit ed1b6e99b5e6 ("iwlwifi: remove noise reporting")
when it was still called iwl3945_calc_db_from_ratio().
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20241226011355.135417-2-linux@treblig.org
| -rw-r--r-- | drivers/net/wireless/intel/iwlegacy/3945-mac.c | 38 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlegacy/3945.h | 1 |
2 files changed, 0 insertions, 39 deletions
diff --git a/drivers/net/wireless/intel/iwlegacy/3945-mac.c b/drivers/net/wireless/intel/iwlegacy/3945-mac.c index 74fc76c00ebc..4013443698a2 100644 --- a/drivers/net/wireless/intel/iwlegacy/3945-mac.c +++ b/drivers/net/wireless/intel/iwlegacy/3945-mac.c @@ -1127,44 +1127,6 @@ il3945_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq) rxq->rb_stts = NULL; } -/* Convert linear signal-to-noise ratio into dB */ -static u8 ratio2dB[100] = { -/* 0 1 2 3 4 5 6 7 8 9 */ - 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ - 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ - 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ - 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ - 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ - 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ - 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ - 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ - 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ - 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ -}; - -/* Calculates a relative dB value from a ratio of linear - * (i.e. not dB) signal levels. - * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ -int -il3945_calc_db_from_ratio(int sig_ratio) -{ - /* 1000:1 or higher just report as 60 dB */ - if (sig_ratio >= 1000) - return 60; - - /* 100:1 or higher, divide by 10 and use table, - * add 20 dB to make up for divide by 10 */ - if (sig_ratio >= 100) - return 20 + (int)ratio2dB[sig_ratio / 10]; - - /* We shouldn't see this */ - if (sig_ratio < 1) - return 0; - - /* Use table for ratios 1:1 - 99:1 */ - return (int)ratio2dB[sig_ratio]; -} - /* * il3945_rx_handle - Main entry function for receiving responses from uCode * diff --git a/drivers/net/wireless/intel/iwlegacy/3945.h b/drivers/net/wireless/intel/iwlegacy/3945.h index ffbe11902628..fb1e33c89d0e 100644 --- a/drivers/net/wireless/intel/iwlegacy/3945.h +++ b/drivers/net/wireless/intel/iwlegacy/3945.h @@ -173,7 +173,6 @@ struct il3945_ibss_seq { * for use by iwl-*.c * *****************************************************************************/ -int il3945_calc_db_from_ratio(int sig_ratio); void il3945_rx_replenish(void *data); void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq); unsigned int il3945_fill_beacon_frame(struct il_priv *il, |