Re: [PATCH] rtlwifi: rtl8821ae: add in a missing break in switch statement
From: Joe Perches
Date: Sat Oct 06 2018 - 18:03:27 EST
On Sat, 2018-10-06 at 17:00 -0500, Larry Finger wrote:
> On 10/6/18 3:17 PM, Joe Perches wrote:
> > On Sat, 2018-10-06 at 15:05 -0500, Larry Finger wrote:
> > > On 10/6/18 2:30 PM, Kalle Valo wrote:
> > > > Colin King <colin.king@xxxxxxxxxxxxx> writes:
> > > >
> > > > > From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> > > > >
> > > > > The switch case RATR_INX_WIRELESS_MC has a missing break, this seems
> > > > > to be unintentional as the setting of variable ret gets overwritten
> > > > > when the case falls through to the following RATR_INX_WIRELESS_AC_5N
> > > > > case. Fix this by adding in the missing break.
> > > > >
> > > > > Detected by CoverityScan, CID#1167237 ("Missing break in switch")
> > > > >
> > > > > Fixes: 3c05bedb5fef ("Staging: rtl8812ae: Add Realtek 8821 PCI WIFI driver")
> > > > > Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> > > > > ---
> > > > > drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c | 1 +
> > > >
> > > > Is the fixes line correct? This patch is not for staging.
> > >
> > > No, the correct fixes commit is 21e4b0726dc67 (" rtlwifi: rtl8821ae: Move driver
> > > from staging to regular tree").
> > >
> > > This driver was initially placed in staging as it was needed for a special
> > > project, which is the commit that Colin used. As the patch subject states, the
> > > driver was later moved to the regular wireless tree.
> > >
> > > That break is required, thus ACKed-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
> >
> > Why not remove this entirely and use the generic routine in
> > drivers/net/wireless/realtek/rtlwifi/base.c?
> >
> > Is there a real difference?
>
> I did not see any difference other than the removal of a bunch of magic numbers
> and better formatting.
Me neither.