4:04 a.m.
tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-linux-5.4.y
head: f85baf8e2e6374594eb76d4c14ada9d62a2fa98b
commit: f85baf8e2e6374594eb76d4c14ada9d62a2fa98b [1/1] Merge tag 'v5.4.69' of
http://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into ti-linux-5.4.y
config: alpha-randconfig-r026-20201013 (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
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
git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git
git fetch --no-tags ti ti-linux-5.4.y
git checkout f85baf8e2e6374594eb76d4c14ada9d62a2fa98b
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha
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/hsr/hsr_forward.c: In function 'prp_fill_rct':
> net/hsr/hsr_forward.c:244:3: warning: ignoring return value of
'skb_put_padto', declared with attribute warn_unused_result [-Wunused-result]
244 | skb_put_padto(skb, VLAN_ETH_ZLEN);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/hsr/hsr_forward.c:246:3: warning: ignoring return value of 'skb_put_padto',
declared with attribute warn_unused_result [-Wunused-result]
246 | skb_put_padto(skb, ETH_ZLEN);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/hsr/hsr_forward.c: In function 'hsr_fill_tag':
net/hsr/hsr_forward.c:279:2: warning: ignoring return value of 'skb_put_padto',
declared with attribute warn_unused_result [-Wunused-result]
279 | skb_put_padto(skb, ETH_ZLEN + HSR_HLEN);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/skb_put_padto +244 net/hsr/hsr_forward.c
cec32b3c1209701 Murali Karicheri 2020-06-02 232
cec32b3c1209701 Murali Karicheri 2020-06-02 233 /* Tailroom for PRP rct should have been
created before calling this */
cec32b3c1209701 Murali Karicheri 2020-06-02 234 static void prp_fill_rct(struct sk_buff
*skb, struct hsr_frame_info *frame,
cec32b3c1209701 Murali Karicheri 2020-06-02 235 struct hsr_port *port)
cec32b3c1209701 Murali Karicheri 2020-06-02 236 {
cec32b3c1209701 Murali Karicheri 2020-06-02 237 struct prp_rct *trailer;
cec32b3c1209701 Murali Karicheri 2020-06-02 238 int lsdu_size;
cec32b3c1209701 Murali Karicheri 2020-06-02 239
cec32b3c1209701 Murali Karicheri 2020-06-02 240 if (!skb)
cec32b3c1209701 Murali Karicheri 2020-06-02 241 return;
cec32b3c1209701 Murali Karicheri 2020-06-02 242
cec32b3c1209701 Murali Karicheri 2020-06-02 243 if (frame->is_vlan)
cec32b3c1209701 Murali Karicheri 2020-06-02 @244 skb_put_padto(skb, VLAN_ETH_ZLEN);
cec32b3c1209701 Murali Karicheri 2020-06-02 245 else
cec32b3c1209701 Murali Karicheri 2020-06-02 246 skb_put_padto(skb, ETH_ZLEN);
cec32b3c1209701 Murali Karicheri 2020-06-02 247
cec32b3c1209701 Murali Karicheri 2020-06-02 248 trailer = (struct prp_rct
*)skb_put(skb, HSR_HLEN);
cec32b3c1209701 Murali Karicheri 2020-06-02 249 lsdu_size = skb->len - 14;
cec32b3c1209701 Murali Karicheri 2020-06-02 250 if (frame->is_vlan)
cec32b3c1209701 Murali Karicheri 2020-06-02 251 lsdu_size -= 4;
cec32b3c1209701 Murali Karicheri 2020-06-02 252 prp_set_lan_id(trailer, port);
cec32b3c1209701 Murali Karicheri 2020-06-02 253 set_prp_LSDU_size(trailer, lsdu_size);
cec32b3c1209701 Murali Karicheri 2020-06-02 254 trailer->sequence_nr =
htons(frame->sequence_nr);
cec32b3c1209701 Murali Karicheri 2020-06-02 255 trailer->PRP_suffix =
htons(ETH_P_PRP);
cec32b3c1209701 Murali Karicheri 2020-06-02 256 }
cec32b3c1209701 Murali Karicheri 2020-06-02 257
:::::: The code at line 244 was first introduced by commit
:::::: cec32b3c120970149886c47f9e5b7e09c73ba020 net: prp: add packet handling support
:::::: TO: Murali Karicheri <m-karicheri2(a)ti.com>
:::::: CC: Murali Karicheri <m-karicheri2(a)ti.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org