Re: [PATCH] rtlwifi: rtl8821ae: add in a missing break in switch statement

From: Larry Finger
Date: Sat Oct 06 2018 - 18:00:33 EST


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.

Larry