tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f6e1ea19649216156576aeafa784e3b4cee45549 commit: 44f3625bc61653ea3bde9960298faf2f5518fda5 netlink: export policy in extended ACK date: 3 months ago config: powerpc-randconfig-r036-20210101 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 6b316febb4388764789677f81f03aff373ec35b2) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=44f3625bc61653ea3bde9960298faf2f5518fda5 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 44f3625bc61653ea3bde9960298faf2f5518fda5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:219:1: note: expanded from here __do_insw ^ arch/powerpc/include/asm/io.h:542:56: note: expanded from macro '__do_insw' #define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from net/wireless/pmsr.c:7: In file included from include/net/cfg80211.h:13: In file included from include/linux/netdevice.h:37: In file included from include/linux/ethtool.h:18: In file included from include/uapi/linux/ethtool.h:19: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:31: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/powerpc/include/asm/io.h:604: arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:221:1: note: expanded from here __do_insl ^ arch/powerpc/include/asm/io.h:543:56: note: expanded from macro '__do_insl' #define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from net/wireless/pmsr.c:7: In file included from include/net/cfg80211.h:13: In file included from include/linux/netdevice.h:37: In file included from include/linux/ethtool.h:18: In file included from include/uapi/linux/ethtool.h:19: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:31: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/powerpc/include/asm/io.h:604: arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:223:1: note: expanded from here __do_outsb ^ arch/powerpc/include/asm/io.h:544:58: note: expanded from macro '__do_outsb' #define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from net/wireless/pmsr.c:7: In file included from include/net/cfg80211.h:13: In file included from include/linux/netdevice.h:37: In file included from include/linux/ethtool.h:18: In file included from include/uapi/linux/ethtool.h:19: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:31: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/powerpc/include/asm/io.h:604: arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:225:1: note: expanded from here __do_outsw ^ arch/powerpc/include/asm/io.h:545:58: note: expanded from macro '__do_outsw' #define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from net/wireless/pmsr.c:7: In file included from include/net/cfg80211.h:13: In file included from include/linux/netdevice.h:37: In file included from include/linux/ethtool.h:18: In file included from include/uapi/linux/ethtool.h:19: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:31: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/powerpc/include/asm/io.h:604: arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:227:1: note: expanded from here __do_outsl ^ arch/powerpc/include/asm/io.h:546:58: note: expanded from macro '__do_outsl' #define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ >> net/wireless/pmsr.c:164:12: warning: stack frame size of 2432 bytes in >> function 'pmsr_parse_peer' [-Wframe-larger-than=] static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, ^ 13 warnings generated. vim +/pmsr_parse_peer +164 net/wireless/pmsr.c 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 163 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 @164 static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 165 struct nlattr *peer, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 166 struct cfg80211_pmsr_request_peer *out, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 167 struct genl_info *info) 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 168 { 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 169 struct nlattr *tb[NL80211_PMSR_PEER_ATTR_MAX + 1]; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 170 struct nlattr *req[NL80211_PMSR_REQ_ATTR_MAX + 1]; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 171 struct nlattr *treq; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 172 int err, rem; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 173 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 174 /* no validation needed - was already done via nested policy */ 8cb081746c031fb Johannes Berg 2019-04-26 175 nla_parse_nested_deprecated(tb, NL80211_PMSR_PEER_ATTR_MAX, peer, 8cb081746c031fb Johannes Berg 2019-04-26 176 NULL, NULL); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 177 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 178 if (!tb[NL80211_PMSR_PEER_ATTR_ADDR] || 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 179 !tb[NL80211_PMSR_PEER_ATTR_CHAN] || 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 180 !tb[NL80211_PMSR_PEER_ATTR_REQ]) { 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 181 NL_SET_ERR_MSG_ATTR(info->extack, peer, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 182 "insufficient peer data"); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 183 return -EINVAL; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 184 } 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 185 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 186 memcpy(out->addr, nla_data(tb[NL80211_PMSR_PEER_ATTR_ADDR]), ETH_ALEN); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 187 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 188 /* reuse info->attrs */ 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 189 memset(info->attrs, 0, sizeof(*info->attrs) * (NL80211_ATTR_MAX + 1)); 8cb081746c031fb Johannes Berg 2019-04-26 190 err = nla_parse_nested_deprecated(info->attrs, NL80211_ATTR_MAX, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 191 tb[NL80211_PMSR_PEER_ATTR_CHAN], d15da2a2e813679 Johannes Berg 2020-04-30 192 NULL, info->extack); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 193 if (err) 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 194 return err; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 195 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 196 err = nl80211_parse_chandef(rdev, info, &out->chandef); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 197 if (err) 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 198 return err; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 199 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 200 /* no validation needed - was already done via nested policy */ 8cb081746c031fb Johannes Berg 2019-04-26 201 nla_parse_nested_deprecated(req, NL80211_PMSR_REQ_ATTR_MAX, 8cb081746c031fb Johannes Berg 2019-04-26 202 tb[NL80211_PMSR_PEER_ATTR_REQ], NULL, 8cb081746c031fb Johannes Berg 2019-04-26 203 NULL); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 204 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 205 if (!req[NL80211_PMSR_REQ_ATTR_DATA]) { 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 206 NL_SET_ERR_MSG_ATTR(info->extack, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 207 tb[NL80211_PMSR_PEER_ATTR_REQ], 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 208 "missing request type/data"); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 209 return -EINVAL; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 210 } 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 211 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 212 if (req[NL80211_PMSR_REQ_ATTR_GET_AP_TSF]) 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 213 out->report_ap_tsf = true; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 214 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 215 if (out->report_ap_tsf && !rdev->wiphy.pmsr_capa->report_ap_tsf) { 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 216 NL_SET_ERR_MSG_ATTR(info->extack, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 217 req[NL80211_PMSR_REQ_ATTR_GET_AP_TSF], 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 218 "reporting AP TSF is not supported"); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 219 return -EINVAL; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 220 } 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 221 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 222 nla_for_each_nested(treq, req[NL80211_PMSR_REQ_ATTR_DATA], rem) { 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 223 switch (nla_type(treq)) { 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 224 case NL80211_PMSR_TYPE_FTM: 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 225 err = pmsr_parse_ftm(rdev, treq, out, info); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 226 break; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 227 default: 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 228 NL_SET_ERR_MSG_ATTR(info->extack, treq, 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 229 "unsupported measurement type"); 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 230 err = -EINVAL; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 231 } 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 232 } 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 233 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 234 if (err) 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 235 return err; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 236 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 237 return 0; 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 238 } 9bb7e0f24e7e7d0 Johannes Berg 2018-09-10 239 :::::: The code at line 164 was first introduced by commit :::::: 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 cfg80211: add peer measurement with FTM initiator API :::::: TO: Johannes Berg <johannes.b...@intel.com> :::::: CC: Johannes Berg <johannes.b...@intel.com> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip