8:43 a.m.
Hi "Alvin,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on net-next/master]
url:
https://github.com/0day-ci/linux/commits/Alvin-ipraga/net-dsa-add-support...
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
9b60ac54ab7cf92af76240cdad549e8fde605eee
config: x86_64-randconfig-a014-20210822 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project
a83d99c55ebb14532c414066a5aa3bdb65389965)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://github.com/0day-ci/linux/commit/beb62a71799fa3a99ca2e585290454c60...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Alvin-ipraga/net-dsa-add-support-for-RTL8365MB-VC/20210823-033419
git checkout beb62a71799fa3a99ca2e585290454c60b174cd7
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
> net/dsa/tag_rtl8_4.c:78:6: warning: variable 'out' set
but not used [-Wunused-but-set-variable]
u16 out;
^
1 warning generated.
vim +/out +78 net/dsa/tag_rtl8_4.c
71
72 static struct sk_buff *rtl8_4_tag_xmit(struct sk_buff *skb,
73 struct net_device *dev)
74 {
75 struct dsa_port *dp = dsa_slave_to_port(dev);
76 __be16 *p;
77 u8 *tag;
78 u16 out;
79
80 /* Pad out so that the (stripped) packet is at least 64 bytes long
81 * (including FCS), otherwise the switch will drop the packet.
82 * Then we need an additional 8 bytes for the Realtek tag.
83 */
84 if (__skb_put_padto(skb, ETH_ZLEN + RTL8_4_TAG_LEN, false))
85 return NULL;
86
87 skb_push(skb, RTL8_4_TAG_LEN);
88
89 dsa_alloc_etype_header(skb, RTL8_4_TAG_LEN);
90 tag = dsa_etype_header_pos_tx(skb);
91
92 /* Set Realtek EtherType */
93 p = (__be16 *)tag;
94 *p = htons(RTL8_4_ETHERTYPE);
95
96 /* Set Protocol; zero REASON */
97 p = (__be16 *)(tag + 2);
98 *p = htons(RTL8_4_PROTOCOL_RTL8365MB << 8);
99
100 /* Zero FID_EN, FID, PRI_EN, PRI, KEEP, LEARN_DIS */
101 p = (__be16 *)(tag + 4);
102 *p = 0;
103
104 /* Zero ALLOW; set RX (CPU->switch) forwarding port mask */
105 p = (__be16 *)(tag + 6);
106 out = BIT(dp->index);
107 *p = htons(~(1 << 15) & BIT(dp->index));
108
109 return skb;
110 }
111
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org