diff mbox series

[net-next,5/6,v6] net: dsa: rtl8366: Fix a bug in deleting VLANs

Message ID 20210925132311.2040272-6-linus.walleij@linaro.org (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series RTL8366(RB) cleanups part 1 | expand

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Context Check Description
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netdev/tree_selection success Clearly marked for net-next
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netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link

Commit Message

Linus Walleij Sept. 25, 2021, 1:23 p.m. UTC
We were checking that the MC (member config) was != 0
for some reason, all we need to check is that the config
has no ports, i.e. no members. Then it can be recycled.
This must be some misunderstanding.

Fixes: 4ddcaf1ebb5e ("net: dsa: rtl8366: Properly clear member config")
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Mauri Sandberg <sandberg@mailfence.com>
Cc: Alvin Šipraga <alsi@bang-olufsen.dk>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v5->v6:
- No changes just resending with the rest of the
  patches.
ChangeLog v4->v5:
- Collect Florians review tag
- Add Fixes tag
ChangeLog v1->v4:
- New patch for a bug found while fixing the other issues.
---
 drivers/net/dsa/rtl8366.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Alvin Šipraga Sept. 25, 2021, 5:18 p.m. UTC | #1
On 9/25/21 3:23 PM, Linus Walleij wrote:
> We were checking that the MC (member config) was != 0

Minor nitpick: actually we were checking the untag mask != 0, right?

The change itself seems fine though:

Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>

> for some reason, all we need to check is that the config
> has no ports, i.e. no members. Then it can be recycled.
> This must be some misunderstanding.
> 
> Fixes: 4ddcaf1ebb5e ("net: dsa: rtl8366: Properly clear member config")
> Cc: Vladimir Oltean <olteanv@gmail.com>
> Cc: Mauri Sandberg <sandberg@mailfence.com>
> Cc: Alvin Šipraga <alsi@bang-olufsen.dk>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: DENG Qingfang <dqfext@gmail.com>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ChangeLog v5->v6:
> - No changes just resending with the rest of the
>    patches.
> ChangeLog v4->v5:
> - Collect Florians review tag
> - Add Fixes tag
> ChangeLog v1->v4:
> - New patch for a bug found while fixing the other issues.
> ---
>   drivers/net/dsa/rtl8366.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c
> index 0672dd56c698..f815cd16ad48 100644
> --- a/drivers/net/dsa/rtl8366.c
> +++ b/drivers/net/dsa/rtl8366.c
> @@ -374,7 +374,7 @@ int rtl8366_vlan_del(struct dsa_switch *ds, int port,
>   			 * anymore then clear the whole member
>   			 * config so it can be reused.
>   			 */
> -			if (!vlanmc.member && vlanmc.untag) {
> +			if (!vlanmc.member) {
>   				vlanmc.vid = 0;
>   				vlanmc.priority = 0;
>   				vlanmc.fid = 0;
>
Vladimir Oltean Sept. 25, 2021, 6:50 p.m. UTC | #2
On Sat, Sep 25, 2021 at 03:23:10PM +0200, Linus Walleij wrote:
> We were checking that the MC (member config) was != 0
> for some reason, all we need to check is that the config
> has no ports, i.e. no members. Then it can be recycled.
> This must be some misunderstanding.
> 
> Fixes: 4ddcaf1ebb5e ("net: dsa: rtl8366: Properly clear member config")
> Cc: Vladimir Oltean <olteanv@gmail.com>
> Cc: Mauri Sandberg <sandberg@mailfence.com>
> Cc: Alvin Šipraga <alsi@bang-olufsen.dk>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: DENG Qingfang <dqfext@gmail.com>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---

Reviewed-by: Vladimir Oltean <olteanv@gmail.com>

but bug fixes should go to the "net" tree and from there towards "stable".
At the very least they should be the first patches in a series.
diff mbox series

Patch

diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c
index 0672dd56c698..f815cd16ad48 100644
--- a/drivers/net/dsa/rtl8366.c
+++ b/drivers/net/dsa/rtl8366.c
@@ -374,7 +374,7 @@  int rtl8366_vlan_del(struct dsa_switch *ds, int port,
 			 * anymore then clear the whole member
 			 * config so it can be reused.
 			 */
-			if (!vlanmc.member && vlanmc.untag) {
+			if (!vlanmc.member) {
 				vlanmc.vid = 0;
 				vlanmc.priority = 0;
 				vlanmc.fid = 0;