On Mon, May 14, 2018 at 04:17:36PM +0300, Dan Carpenter wrote: > On Sun, May 06, 2018 at 03:03:00PM -0700, Nathan Chancellor wrote: > > uwrq is an unsigned 32-bit integer, it cannot be less than zero. > > > > Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx> > > --- > > drivers/staging/ks7010/ks_wlan_net.c | 6 +++--- > > 1 file changed, 3 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/staging/ks7010/ks_wlan_net.c b/drivers/staging/ks7010/ks_wlan_net.c > > index e96477937f65..0c83d6fe270f 100644 > > --- a/drivers/staging/ks7010/ks_wlan_net.c > > +++ b/drivers/staging/ks7010/ks_wlan_net.c > > @@ -1928,7 +1928,7 @@ static int ks_wlan_set_beacon_lost(struct net_device *dev, > > if (priv->sleep_mode == SLP_SLEEP) > > return -EPERM; > > /* for SLEEP MODE */ > > - if (*uwrq < BEACON_LOST_COUNT_MIN || *uwrq > BEACON_LOST_COUNT_MAX) > > + if (*uwrq > BEACON_LOST_COUNT_MAX) > > I believe Smatch is supposed to ignore this sort of code because > comparing "if (foo < 0 || foo > max) " is pretty readable and idiomatic. > > Presumably this was so we could redefine BEACON_LOST_COUNT_MIN, but it's > fine to unused code. The define isn't needed at all, so you can > delete that as well. > > regards, > dan carpenter > Hi Dan, Thanks for the suggestion, I just sent a patch. This warning came from GCC as a -Wtype-limit warning. I should have put that in the commit message to be more clear. I will keep this in mind for the future if I come across any more checks like this with defines. Thanks! Nathan Chancellor _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
