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--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -172,26 +172,9 @@ void ath9k_hw_loadnf(struct ath_hw *ah,
struct ath9k_nfcal_hist *h;
unsigned i, j;
int32_t val;
- u8 chainmask;
+ u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
struct ath_common *common = ath9k_hw_common(ah);
- if (AR_SREV_9300_20_OR_LATER(ah))
- chainmask = 0x3F;
- else if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
- chainmask = 0x9;
- else if (AR_SREV_9280(ah) || AR_SREV_9287(ah)) {
- if ((ah->rxchainmask & 0x2) || (ah->rxchainmask & 0x4))
- chainmask = 0x1B;
- else
- chainmask = 0x09;
- } else {
- if (ah->rxchainmask & 0x4)
- chainmask = 0x3F;
- else if (ah->rxchainmask & 0x2)
- chainmask = 0x1B;
- else
- chainmask = 0x09;
- }
h = ah->nfCalHist;
for (i = 0; i < NUM_NF_READINGS; i++) {
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