11:40 p.m.
Hi Johannes,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on mac80211-next/master]
[also build test ERROR on mac80211/master v5.9-rc5 next-20200917]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url:
https://github.com/0day-ci/linux/commits/Johannes-Berg/nl80211-cfg80211-s...
base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
config: powerpc64-randconfig-r035-20200917 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
1321160a26e7e489baf9b10d6de90a342f898960)
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 powerpc64 cross compiling tool for clang build
# apt-get install binutils-powerpc64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
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: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>:213:1: 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/scan.c: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>:215:1: 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/scan.c: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>:217:1: 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/scan.c: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>:219:1: 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/scan.c: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>:221:1: 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/scan.c:839:7: error: implicit declaration of
function 'cfg80211_is_psc' [-Werror,-Wimplicit-function-declaration]
if (cfg80211_is_psc(chan) && !need_scan_psc)
^
12 warnings and 1 error generated.
# https://github.com/0day-ci/linux/commit/6c8ef71e4783e7524ee2a59e264dd6767...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Johannes-Berg/nl80211-cfg80211-support-6-GHz-scanning/20200917-170112
git checkout 6c8ef71e4783e7524ee2a59e264dd67676a5f532
vim +/cfg80211_is_psc +839 net/wireless/scan.c
720
721 static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev)
722 {
723 u8 i;
724 struct cfg80211_colocated_ap *ap;
725 int n_channels, count = 0, err;
726 struct cfg80211_scan_request *request, *rdev_req = rdev->scan_req;
727 LIST_HEAD(coloc_ap_list);
728 bool need_scan_psc;
729 const struct ieee80211_sband_iftype_data *iftd;
730
731 rdev_req->scan_6ghz = true;
732
733 if (!rdev->wiphy.bands[NL80211_BAND_6GHZ])
734 return -EOPNOTSUPP;
735
736 iftd = ieee80211_get_sband_iftype_data(rdev->wiphy.bands[NL80211_BAND_6GHZ],
737 rdev_req->wdev->iftype);
738 if (!iftd || !iftd->he_cap.has_he)
739 return -EOPNOTSUPP;
740
741 n_channels = rdev->wiphy.bands[NL80211_BAND_6GHZ]->n_channels;
742
743 if (rdev_req->flags & NL80211_SCAN_FLAG_COLOCATED_6GHZ) {
744 struct cfg80211_internal_bss *intbss;
745
746 spin_lock_bh(&rdev->bss_lock);
747 list_for_each_entry(intbss, &rdev->bss_list, list) {
748 struct cfg80211_bss *res = &intbss->pub;
749
750 count += cfg80211_parse_colocated_ap(res->ies,
751 &coloc_ap_list);
752 }
753 spin_unlock_bh(&rdev->bss_lock);
754 }
755
756 request = kzalloc(struct_size(request, channels, n_channels) +
757 sizeof(*request->scan_6ghz_params) * count,
758 GFP_KERNEL);
759 if (!request) {
760 cfg80211_free_coloc_ap_list(&coloc_ap_list);
761 return -ENOMEM;
762 }
763
764 *request = *rdev_req;
765 request->n_channels = 0;
766 request->scan_6ghz_params =
767 (void *)&request->channels[n_channels];
768
769 /*
770 * PSC channels should not be scanned if all the reported co-located APs
771 * are indicating that all APs in the same ESS are co-located
772 */
773 if (count) {
774 need_scan_psc = false;
775
776 list_for_each_entry(ap, &coloc_ap_list, list) {
777 if (!ap->colocated_ess) {
778 need_scan_psc = true;
779 break;
780 }
781 }
782 } else {
783 need_scan_psc = true;
784 }
785
786 /*
787 * add to the scan request the channels that need to be scanned
788 * regardless of the collocated APs (PSC channels or all channels
789 * in case that NL80211_SCAN_FLAG_COLOCATED_6GHZ is not set)
790 */
791 for (i = 0; i < rdev_req->n_channels; i++) {
792 if (rdev_req->channels[i]->band == NL80211_BAND_6GHZ &&
793 ((need_scan_psc &&
794 cfg80211_channel_is_psc(rdev_req->channels[i])) ||
795 !(rdev_req->flags & NL80211_SCAN_FLAG_COLOCATED_6GHZ))) {
796 cfg80211_scan_req_add_chan(request,
797 rdev_req->channels[i],
798 false);
799 }
800 }
801
802 if (!(rdev_req->flags & NL80211_SCAN_FLAG_COLOCATED_6GHZ))
803 goto skip;
804
805 list_for_each_entry(ap, &coloc_ap_list, list) {
806 bool found = false;
807 struct cfg80211_scan_6ghz_params *scan_6ghz_params =
808 &request->scan_6ghz_params[request->n_6ghz_params];
809 struct ieee80211_channel *chan =
810 ieee80211_get_channel(&rdev->wiphy, ap->center_freq);
811
812 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
813 continue;
814
815 for (i = 0; i < rdev_req->n_channels; i++) {
816 if (rdev_req->channels[i] == chan)
817 found = true;
818 }
819
820 if (!found)
821 continue;
822
823 if (request->n_ssids > 0 &&
824 !cfg80211_find_ssid_match(ap, request))
825 continue;
826
827 cfg80211_scan_req_add_chan(request, chan, true);
828 memcpy(scan_6ghz_params->bssid, ap->bssid, ETH_ALEN);
829 scan_6ghz_params->short_ssid = ap->short_ssid;
830 scan_6ghz_params->short_ssid_valid = ap->short_ssid_valid;
831 scan_6ghz_params->unsolicited_probe = ap->unsolicited_probe;
832
833 /*
834 * If a PSC channel is added to the scan and 'need_scan_psc' is
835 * set to false, then all the APs that the scan logic is
836 * interested with on the channel are collocated and thus there
837 * is no need to perform the initial PSC channel listen.
838 */
839 if (cfg80211_is_psc(chan) && !need_scan_psc)
840 scan_6ghz_params->psc_no_listen = true;
841
842 request->n_6ghz_params++;
843 }
844
845 skip:
846 cfg80211_free_coloc_ap_list(&coloc_ap_list);
847
848 if (request->n_channels) {
849 struct cfg80211_scan_request *old = rdev->int_scan_req;
850
851 rdev->int_scan_req = request;
852
853 /*
854 * If this scan follows a previous scan, save the scan start
855 * info from the first part of the scan
856 */
857 if (old)
858 rdev->int_scan_req->info = old->info;
859
860 err = rdev_scan(rdev, request);
861 if (err) {
862 rdev->int_scan_req = old;
863 kfree(request);
864 } else {
865 kfree(old);
866 }
867
868 return err;
869 }
870
871 kfree(request);
872 return -EINVAL;
873 }
874
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org