On Thu, Nov 10, 2016 at 07:16:42PM +0100, Sergio Paracuellos wrote: > This patch replace actual mask stuff using BIT macros with > or operators to make use of GENMASK macro which simplifies > code clearity and readibility. > > It applies for two bitwise operations included in prism2sta.c source file. > > Signed-off-by: Sergio Paracuellos <sergio.paracuel...@gmail.com> > --- > drivers/staging/wlan-ng/prism2sta.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/staging/wlan-ng/prism2sta.c > b/drivers/staging/wlan-ng/prism2sta.c > index 351f08d..984804b 100644 > --- a/drivers/staging/wlan-ng/prism2sta.c > +++ b/drivers/staging/wlan-ng/prism2sta.c > @@ -654,8 +654,8 @@ static int prism2sta_getcardinfo(struct wlandevice > *wlandev) > hw->ident_sta_fw.minor = le16_to_cpu(hw->ident_sta_fw.minor); > > /* strip out the 'special' variant bits */ > - hw->mm_mods = hw->ident_sta_fw.variant & (BIT(14) | BIT(15)); > - hw->ident_sta_fw.variant &= ~((u16)(BIT(14) | BIT(15))); > + hw->mm_mods = hw->ident_sta_fw.variant & GENMASK(15, 14); > + hw->ident_sta_fw.variant &= ~((u16)GENMASK(15, 14));
The cast is a no-op because of type promotion. It gets cast to u16 then immediately recast to int before the bitwise negate op. regards, dan carpenter _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
