On 2010-11-10 1:23 PM, Vivek Natarajan wrote:
> Keycache entry for a sta has the details of the negotiated
> beamforming parameters which is to be used by the hardware
> while trasmitting to that specific sta.
>
> Signed-off-by: Vivek Natarajan <vnatarajan@xxxxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath.h | 2 ++
> drivers/net/wireless/ath/key.c | 29 +++++++++++++++++++++++++++++
> 2 files changed, 31 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/key.c b/drivers/net/wireless/ath/key.c
> index 62e3dac..11f562e 100644
> --- a/drivers/net/wireless/ath/key.c
> +++ b/drivers/net/wireless/ath/key.c
> @@ -115,6 +115,7 @@ static bool ath_hw_set_keycache_entry(struct ath_common *common, u16 entry,
> void *ah = common->ah;
> u32 key0, key1, key2, key3, key4;
> u32 keyType;
> + u32 txbf = 0;
>
> if (entry >= common->keymax) {
> ath_print(common, ATH_DBG_FATAL,
> @@ -199,6 +200,9 @@ static bool ath_hw_set_keycache_entry(struct ath_common *common, u16 entry,
> REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
> REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
>
> + REG_WRITE(ah, AR_KEYTABLE_TYPE(entry),
> + keyType | txbf);
> +
> /* Write MAC address for the entry */
> (void) ath_hw_keysetmac(common, entry, mac);
>
What's the point of this change, if txbf is always zero?
And why duplicate the REG_WRITE?
- Felix
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