linux-kernel - Re: [PATCH net-next v3 2/2] net: vxlan: vxlan_core.c: Add extack support to vxlan_fdb

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Date:   Sun, 24 Apr 2022 22:03:55 +0300
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     Alaa Mohamed <eng.alaamohamedsoliman.am@...il.com>,
        Julia Lawall <julia.lawall@...ia.fr>
Cc:     netdev@...r.kernel.org, outreachy@...ts.linux.dev,
        roopa@...dia.com, jdenham@...hat.com, sbrivio@...hat.com,
        jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        vladimir.oltean@....com, claudiu.manoil@....com,
        alexandre.belloni@...tlin.com, shshaikh@...vell.com,
        manishc@...vell.com, intel-wired-lan@...ts.osuosl.org,
        linux-kernel@...r.kernel.org, UNGLinuxDriver@...rochip.com,
        GR-Linux-NIC-Dev@...vell.com, bridge@...ts.linux-foundation.org
Subject: Re: [PATCH net-next v3 2/2] net: vxlan: vxlan_core.c: Add extack
 support to vxlan_fdb_delete

On 24/04/2022 21:52, Alaa Mohamed wrote:
> 
> On ٢٤‏/٤‏/٢٠٢٢ ١٨:١٥, Julia Lawall wrote:
>>
>> On Sun, 24 Apr 2022, Alaa Mohamed wrote:
>>
>>> Add extack to vxlan_fdb_delete and vxlan_fdb_parse
>> It could be helpful to say more about what adding extack support involves.
>>
>>> Signed-off-by: Alaa Mohamed <eng.alaamohamedsoliman.am@...il.com>
>>> ---
>>> changes in V2:
>>>     - fix spelling vxlan_fdb_delete
>>>     - add missing braces
>>>     - edit error message
>>> ---
>>> changes in V3:
>>>     fix errors reported by checkpatch.pl
>> But your changes would seem to also be introducing more checkpatch errors,
>> because the Linux kernel coding style puts a space before an { at the
>> start of an if branch.
> I ran checkpatch script before submitting this patch and got no error

This is what I got:
WARNING: suspect code indent for conditional statements (8, 24)
#366: FILE: drivers/net/vxlan/vxlan_core.c:1137:
 	if (tb[NDA_NH_ID] && (tb[NDA_DST] || tb[NDA_VNI] || tb[NDA_IFINDEX] ||
[...]
+			NL_SET_ERR_MSG(extack, "DST, VNI, ifindex and port are mutually exclusive with NH_ID");

WARNING: line length of 111 exceeds 100 columns
#370: FILE: drivers/net/vxlan/vxlan_core.c:1139:
+			NL_SET_ERR_MSG(extack, "DST, VNI, ifindex and port are mutually exclusive with NH_ID");

ERROR: space required before the open brace '{'
#377: FILE: drivers/net/vxlan/vxlan_core.c:1145:
+		if (err){

ERROR: space required before the open brace '{'
#389: FILE: drivers/net/vxlan/vxlan_core.c:1164:
+		if (nla_len(tb[NDA_PORT]) != sizeof(__be16)){

ERROR: space required before the open brace '{'
#400: FILE: drivers/net/vxlan/vxlan_core.c:1174:
+		if (nla_len(tb[NDA_VNI]) != sizeof(u32)){

ERROR: space required before the open brace '{'
#411: FILE: drivers/net/vxlan/vxlan_core.c:1184:
+		if (nla_len(tb[NDA_SRC_VNI]) != sizeof(u32)){

ERROR: space required before the open brace '{'
#423: FILE: drivers/net/vxlan/vxlan_core.c:1196:
+		if (nla_len(tb[NDA_IFINDEX]) != sizeof(u32)){

ERROR: space required before the open brace '{'
#430: FILE: drivers/net/vxlan/vxlan_core.c:1202:
+		if (!tdev){

ERROR: space required after that ',' (ctx:VxV)
#431: FILE: drivers/net/vxlan/vxlan_core.c:1203:
+			NL_SET_ERR_MSG(extack,"Device not found");