diff options
| author | Daniel Halperin <dhalperi@cs.washington.edu> | 2011-03-19 01:48:55 (GMT) |
|---|---|---|
| committer | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2011-03-25 13:58:06 (GMT) |
| commit | 2520546aecc969372080448a2422b39eedb2a528 (patch) | |
| tree | da1c3a8a13dc507e916ddb5351aacd2cb552a054 /drivers/net/wireless/iwlwifi/iwl-agn-rs.c | |
| parent | d0eb633431ec922f8f9b2040f46d9b42a4cec193 (diff) | |
| download | linux-2520546aecc969372080448a2422b39eedb2a528.tar.xz | |
iwlwifi: add RATE_MCS_RATE_MSK
Throughout the code we use rate_n_flags & 0xff to extract the lower byte
of the rate_n_flags u32 that contains the information about the rate.
Add a #define and remove the use of the magic number.
Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-rs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 63b58ec..e394e49 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -115,13 +115,18 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { /* FIXME:RS: ^^ should be INV (legacy) */ }; +static inline u8 rs_extract_rate(u32 rate_n_flags) +{ + return (u8)(rate_n_flags & RATE_MCS_RATE_MSK); +} + static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) { int idx = 0; /* HT rate format */ if (rate_n_flags & RATE_MCS_HT_MSK) { - idx = (rate_n_flags & 0xff); + idx = rs_extract_rate(rate_n_flags); if (idx >= IWL_RATE_MIMO3_6M_PLCP) idx = idx - IWL_RATE_MIMO3_6M_PLCP; @@ -138,7 +143,8 @@ static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) /* legacy rate format, search for match in table */ } else { for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) - if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) + if (iwl_rates[idx].plcp == + rs_extract_rate(rate_n_flags)) return idx; } @@ -239,11 +245,6 @@ static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = { #define MCS_INDEX_PER_STREAM (8) -static inline u8 rs_extract_rate(u32 rate_n_flags) -{ - return (u8)(rate_n_flags & 0xFF); -} - static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window) { window->data = 0; |