diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2010-01-15 12:01:49 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-01-15 17:05:27 -0500 |
| commit | 857c0fc490d8474d1a232d9b6568a4b229634bcd (patch) | |
| tree | c1e07a00af9644cd80ae7af4ad61675aff796ded /drivers | |
| parent | e239d8591843945630521ec85edca08289f1a751 (diff) | |
b43: use standard fls for finding the most significant bit
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/b43/phy_lp.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c index eb4fb4581ed..b58d6cf2658 100644 --- a/drivers/net/wireless/b43/phy_lp.c +++ b/drivers/net/wireless/b43/phy_lp.c @@ -1710,19 +1710,6 @@ static const struct lpphy_rx_iq_comp lpphy_rev2plus_iq_comp = { .c0 = 0, }; -static u8 lpphy_nbits(s32 val) -{ - u32 tmp = abs(val); - u8 nbits = 0; - - while (tmp != 0) { - nbits++; - tmp >>= 1; - } - - return nbits; -} - static int lpphy_calc_rx_iq_comp(struct b43_wldev *dev, u16 samples) { struct lpphy_iq_est iq_est; @@ -1749,8 +1736,8 @@ static int lpphy_calc_rx_iq_comp(struct b43_wldev *dev, u16 samples) goto out; } - prod_msb = lpphy_nbits(prod); - q_msb = lpphy_nbits(qpwr); + prod_msb = fls(abs(prod)); + q_msb = fls(abs(qpwr)); tmp1 = prod_msb - 20; if (tmp1 >= 0) { |