On Thu, 2017-08-31 at 17:44 +0200, Greg Kroah-Hartman wrote: > 4.9-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Jiri Slaby <jslaby@xxxxxxx> > > commit 6f17581788206444cbbcdbc107498f85e9765e3d upstream. > > gcc 7 complains: > drivers/net/wireless/intersil/p54/fwio.c: In function 'p54_scan': > drivers/net/wireless/intersil/p54/fwio.c:491:4: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size] > > Fix that by passing the correct size to memset. > > Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> > Cc: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx> > Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx> > Acked-by: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > --- > drivers/net/wireless/intersil/p54/fwio.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- a/drivers/net/wireless/intersil/p54/fwio.c > +++ b/drivers/net/wireless/intersil/p54/fwio.c > @@ -488,7 +488,7 @@ int p54_scan(struct p54_common *priv, u1 > > entry += sizeof(__le16); > chan->pa_points_per_curve = 8; > - memset(chan->curve_data, 0, sizeof(*chan->curve_data)); > + memset(chan->curve_data, 0, sizeof(chan->curve_data)); > memcpy(chan->curve_data, entry, > sizeof(struct p54_pa_curve_data_sample) * > min((u8)8, curve_data->points_per_channel)); > Why is this change correct? curve_data is a pointer. This now clears the sizeof a pointer and not the sizeof struct p54_cal_database