diff options
| author |   Mateusz Kulikowski <mateusz.kulikowski@gmail.com> | 2015-09-20 21:04:32 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-09-29 04:26:07 +0200 |
| commit | 77b6c42e0278decff0c98999fb835f36048415ab (patch) | |
| tree | 5f5b1cb2880423ec1f2f52ea6329b426540ebc94 /drivers/staging/rtl8192e/rtl8192e | |
| parent | staging: rtl8192e: Remove extra braces (diff) | |
| download | linux-dev-77b6c42e0278decff0c98999fb835f36048415ab.tar.xz linux-dev-77b6c42e0278decff0c98999fb835f36048415ab.zip | |
staging: rtl8192e: Simplify _rtl92e_calculate_bit_shift
Use ffs instead of iteration. Behaviour of function doesn't change.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rtl8192e/rtl8192e')
| -rw-r--r-- | drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c index b3a10f9f01cd..0b407feb5407 100644 --- a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c +++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c @@ -13,6 +13,7 @@ * wlanfae <wlanfae@realtek.com> ******************************************************************************/ +#include <linux/bitops.h> #include "rtl_core.h" #include "r8192E_hw.h" #include "r8192E_phyreg.h" @@ -50,13 +51,9 @@ static void _rtl92e_phy_rf_fw_write(struct net_device *dev, static u32 _rtl92e_calculate_bit_shift(u32 dwBitMask) { - u32 i; - - for (i = 0; i <= 31; i++) { - if (((dwBitMask >> i) & 0x1) == 1) - break; - } - return i; + if (!dwBitMask) + return 32; + return ffs(dwBitMask) - 1; } u8 rtl92e_is_legal_rf_path(struct net_device *dev, u32 eRFPath) |