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SubjectRe: [PATCH] fpga: dfl: improve configuration of dfl pci devices
Hi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.8-rc3 next-20200629]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/trix-redhat-com/fpga-dfl-improve-configuration-of-dfl-pci-devices/20200628-231854
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 719fdd32921fb7e3208db8832d32ae1c2d68900f
config: s390-randconfig-s031-20200629 (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.2-3-gfa153962-dirty
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C= CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=s390

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

drivers/fpga/dfl-fme-perf.c:788:61: sparse: sparse: using member 'hw' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:789:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
>> drivers/fpga/dfl-fme-perf.c:789:38: sparse: sparse: cast from unknown type
drivers/fpga/dfl-fme-perf.c:789:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:789:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:792:47: sparse: sparse: using member 'hw' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:797:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:797:38: sparse: sparse: cast from unknown type
drivers/fpga/dfl-fme-perf.c:797:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:797:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:798:43: sparse: sparse: using member 'hw' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:803:18: sparse: sparse: using member 'attr' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:803:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:811:13: sparse: sparse: undefined identifier 'is_sampling_event'
drivers/fpga/dfl-fme-perf.c:814:18: sparse: sparse: using member 'cpu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:817:18: sparse: sparse: using member 'cpu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:820:19: sparse: sparse: using member 'attr' in incomplete struct perf_event
>> drivers/fpga/dfl-fme-perf.c:820:19: sparse: sparse: incompatible types for operation (>):
>> drivers/fpga/dfl-fme-perf.c:820:19: sparse: unsigned long long
>> drivers/fpga/dfl-fme-perf.c:820:19: sparse: bad type
drivers/fpga/dfl-fme-perf.c:820:19: sparse: sparse: using member 'attr' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:820:19: sparse: sparse: cast from unknown type
drivers/fpga/dfl-fme-perf.c:821:18: sparse: sparse: using member 'attr' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:821:18: sparse: sparse: incompatible types for operation (>):
drivers/fpga/dfl-fme-perf.c:821:18: sparse: unsigned long long
drivers/fpga/dfl-fme-perf.c:821:18: sparse: bad type
drivers/fpga/dfl-fme-perf.c:821:18: sparse: sparse: using member 'attr' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:821:18: sparse: sparse: cast from unknown type
drivers/fpga/dfl-fme-perf.c:822:18: sparse: sparse: using member 'attr' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:822:18: sparse: sparse: incompatible types for operation (>):
drivers/fpga/dfl-fme-perf.c:822:18: sparse: unsigned long long
drivers/fpga/dfl-fme-perf.c:822:18: sparse: bad type
drivers/fpga/dfl-fme-perf.c:822:18: sparse: sparse: using member 'attr' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:822:18: sparse: sparse: cast from unknown type
drivers/fpga/dfl-fme-perf.c:826:12: sparse: sparse: using member 'event_base' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:827:12: sparse: sparse: using member 'idx' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:828:12: sparse: sparse: using member 'config_base' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:830:14: sparse: sparse: using member 'destroy' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:844:61: sparse: sparse: using member 'hw' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:845:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:845:38: sparse: sparse: cast from unknown type
drivers/fpga/dfl-fme-perf.c:845:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:845:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:846:43: sparse: sparse: using member 'hw' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:849:47: sparse: sparse: using member 'idx' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:849:57: sparse: sparse: using member 'config_base' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:850:16: sparse: sparse: using member 'prev_count' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:853:9: sparse: sparse: using member 'count' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:858:61: sparse: sparse: using member 'hw' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:859:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:859:38: sparse: sparse: cast from unknown type
drivers/fpga/dfl-fme-perf.c:859:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:859:38: sparse: sparse: using member 'pmu' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:860:43: sparse: sparse: using member 'hw' in incomplete struct perf_event
drivers/fpga/dfl-fme-perf.c:863:49: sparse: sparse: using member 'idx' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:863:59: sparse: sparse: using member 'config_base' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:864:9: sparse: sparse: using member 'prev_count' in incomplete struct hw_perf_event
drivers/fpga/dfl-fme-perf.c:929:15: sparse: sparse: undefined identifier 'perf_pmu_register'
drivers/fpga/dfl-fme-perf.c:938:9: sparse: sparse: undefined identifier 'perf_pmu_unregister'
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:236:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] val @@ got restricted __le64 [usertype] @@
include/asm-generic/io.h:236:22: sparse: expected unsigned long long [usertype] val
include/asm-generic/io.h:236:22: sparse: got restricted __le64 [usertype]
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:193:15: sparse: sparse: cast to restricted __le64
include/asm-generic/io.h:236:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] val @@ got restricted __le64 [usertype] @@
include/asm-generic/io.h:236:22: sparse: expected unsigned long long [usertype] val

vim +789 drivers/fpga/dfl-fme-perf.c

724142f8c42a7b Wu Hao 2020-04-27 785
724142f8c42a7b Wu Hao 2020-04-27 786 static void fme_perf_event_destroy(struct perf_event *event)
724142f8c42a7b Wu Hao 2020-04-27 787 {
724142f8c42a7b Wu Hao 2020-04-27 788 struct fme_perf_event_ops *ops = get_event_ops(event->hw.event_base);
724142f8c42a7b Wu Hao 2020-04-27 @789 struct fme_perf_priv *priv = to_fme_perf_priv(event->pmu);
724142f8c42a7b Wu Hao 2020-04-27 790
724142f8c42a7b Wu Hao 2020-04-27 791 if (ops->event_destroy)
724142f8c42a7b Wu Hao 2020-04-27 792 ops->event_destroy(priv, event->hw.idx, event->hw.config_base);
724142f8c42a7b Wu Hao 2020-04-27 793 }
724142f8c42a7b Wu Hao 2020-04-27 794
724142f8c42a7b Wu Hao 2020-04-27 795 static int fme_perf_event_init(struct perf_event *event)
724142f8c42a7b Wu Hao 2020-04-27 796 {
724142f8c42a7b Wu Hao 2020-04-27 797 struct fme_perf_priv *priv = to_fme_perf_priv(event->pmu);
724142f8c42a7b Wu Hao 2020-04-27 798 struct hw_perf_event *hwc = &event->hw;
724142f8c42a7b Wu Hao 2020-04-27 799 struct fme_perf_event_ops *ops;
724142f8c42a7b Wu Hao 2020-04-27 800 u32 eventid, evtype, portid;
724142f8c42a7b Wu Hao 2020-04-27 801
724142f8c42a7b Wu Hao 2020-04-27 802 /* test the event attr type check for PMU enumeration */
724142f8c42a7b Wu Hao 2020-04-27 803 if (event->attr.type != event->pmu->type)
724142f8c42a7b Wu Hao 2020-04-27 804 return -ENOENT;
724142f8c42a7b Wu Hao 2020-04-27 805
724142f8c42a7b Wu Hao 2020-04-27 806 /*
724142f8c42a7b Wu Hao 2020-04-27 807 * fme counters are shared across all cores.
724142f8c42a7b Wu Hao 2020-04-27 808 * Therefore, it does not support per-process mode.
724142f8c42a7b Wu Hao 2020-04-27 809 * Also, it does not support event sampling mode.
724142f8c42a7b Wu Hao 2020-04-27 810 */
724142f8c42a7b Wu Hao 2020-04-27 811 if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK)
724142f8c42a7b Wu Hao 2020-04-27 812 return -EINVAL;
724142f8c42a7b Wu Hao 2020-04-27 813
724142f8c42a7b Wu Hao 2020-04-27 814 if (event->cpu < 0)
724142f8c42a7b Wu Hao 2020-04-27 815 return -EINVAL;
724142f8c42a7b Wu Hao 2020-04-27 816
724142f8c42a7b Wu Hao 2020-04-27 817 if (event->cpu != priv->cpu)
724142f8c42a7b Wu Hao 2020-04-27 818 return -EINVAL;
724142f8c42a7b Wu Hao 2020-04-27 819
724142f8c42a7b Wu Hao 2020-04-27 @820 eventid = get_event(event->attr.config);
724142f8c42a7b Wu Hao 2020-04-27 821 portid = get_portid(event->attr.config);
724142f8c42a7b Wu Hao 2020-04-27 822 evtype = get_evtype(event->attr.config);
724142f8c42a7b Wu Hao 2020-04-27 823 if (evtype > FME_EVTYPE_MAX)
724142f8c42a7b Wu Hao 2020-04-27 824 return -EINVAL;
724142f8c42a7b Wu Hao 2020-04-27 825
724142f8c42a7b Wu Hao 2020-04-27 826 hwc->event_base = evtype;
724142f8c42a7b Wu Hao 2020-04-27 827 hwc->idx = (int)eventid;
724142f8c42a7b Wu Hao 2020-04-27 828 hwc->config_base = portid;
724142f8c42a7b Wu Hao 2020-04-27 829
724142f8c42a7b Wu Hao 2020-04-27 830 event->destroy = fme_perf_event_destroy;
724142f8c42a7b Wu Hao 2020-04-27 831
724142f8c42a7b Wu Hao 2020-04-27 832 dev_dbg(priv->dev, "%s event=0x%x, evtype=0x%x, portid=0x%x,\n",
724142f8c42a7b Wu Hao 2020-04-27 833 __func__, eventid, evtype, portid);
724142f8c42a7b Wu Hao 2020-04-27 834
724142f8c42a7b Wu Hao 2020-04-27 835 ops = get_event_ops(evtype);
724142f8c42a7b Wu Hao 2020-04-27 836 if (ops->event_init)
724142f8c42a7b Wu Hao 2020-04-27 837 return ops->event_init(priv, eventid, portid);
724142f8c42a7b Wu Hao 2020-04-27 838
724142f8c42a7b Wu Hao 2020-04-27 839 return 0;
724142f8c42a7b Wu Hao 2020-04-27 840 }
724142f8c42a7b Wu Hao 2020-04-27 841

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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