diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/calib.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/calib.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index fb270df75eb2..b4ab85bd7895 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -16,32 +16,25 @@ #include "hw.h" #include "hw-ops.h" +#include <linux/sort.h> #include <linux/export.h> /* Common calibration code */ +static int rcmp_i16(const void *x, const void *y) +{ + /* Sort in reverse order. */ + return *(int16_t *)y - *(int16_t *)x; +} static int16_t ath9k_hw_get_nf_hist_mid(int16_t *nfCalBuffer) { - int16_t nfval; - int16_t sort[ATH9K_NF_CAL_HIST_MAX]; - int i, j; - - for (i = 0; i < ATH9K_NF_CAL_HIST_MAX; i++) - sort[i] = nfCalBuffer[i]; - - for (i = 0; i < ATH9K_NF_CAL_HIST_MAX - 1; i++) { - for (j = 1; j < ATH9K_NF_CAL_HIST_MAX - i; j++) { - if (sort[j] > sort[j - 1]) { - nfval = sort[j]; - sort[j] = sort[j - 1]; - sort[j - 1] = nfval; - } - } - } - nfval = sort[(ATH9K_NF_CAL_HIST_MAX - 1) >> 1]; + int16_t nfcal[ATH9K_NF_CAL_HIST_MAX]; + + memcpy(nfcal, nfCalBuffer, sizeof(nfcal)); + sort(nfcal, ATH9K_NF_CAL_HIST_MAX, sizeof(int16_t), rcmp_i16, NULL); - return nfval; + return nfcal[(ATH9K_NF_CAL_HIST_MAX - 1) >> 1]; } static struct ath_nf_limits *ath9k_hw_get_nf_limits(struct ath_hw *ah, |