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Subject[jolsa-perf:kprobe/multi 4/13] kernel/kprobes.c:1757:9: error: no member named 'multi' in 'struct kprobe'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git kprobe/multi
head: 774280c9bc95e4e50cda3cd09324bd03fec50b52
commit: b20ae58e76fd39a4b63168d1b8b97db3a45c5680 [4/13] kprobe: Add support to register multiple ftrace kprobes
config: riscv-buildonly-randconfig-r006-20211228 (https://download.01.org/0day-ci/archive/20211229/202112291313.NBZhynh0-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7171af744543433ac75b232eb7dfdaef7efd4d7a)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=b20ae58e76fd39a4b63168d1b8b97db3a45c5680
git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
git fetch --no-tags jolsa-perf kprobe/multi
git checkout b20ae58e76fd39a4b63168d1b8b97db3a45c5680
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> kernel/kprobes.c:1757:9: error: no member named 'multi' in 'struct kprobe'
if (p->multi.cnt)
~ ^
kernel/kprobes.c:1989:12: warning: no previous prototype for function 'kprobe_exceptions_notify' [-Wmissing-prototypes]
int __weak kprobe_exceptions_notify(struct notifier_block *self,
^
kernel/kprobes.c:1989:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __weak kprobe_exceptions_notify(struct notifier_block *self,
^
static
1 warning and 1 error generated.


vim +1757 kernel/kprobes.c

1745
1746 int register_kprobe(struct kprobe *p)
1747 {
1748 struct module *probed_mod = NULL;
1749 struct kprobe *old_p;
1750 int ret;
1751
1752 /* User can pass only KPROBE_FLAG_DISABLED to register_kprobe */
1753 p->flags &= KPROBE_FLAG_DISABLED;
1754 p->nmissed = 0;
1755 INIT_LIST_HEAD(&p->list);
1756
> 1757 if (p->multi.cnt)
1758 ret = check_ftrace_multi(p);
1759 else
1760 ret = check_addr(p, &probed_mod);
1761 if (ret)
1762 return ret;
1763
1764 mutex_lock(&kprobe_mutex);
1765
1766 old_p = get_kprobe(p->addr);
1767 if (old_p) {
1768 /* Since this may unoptimize 'old_p', locking 'text_mutex'. */
1769 ret = register_aggr_kprobe(old_p, p);
1770 goto out;
1771 }
1772
1773 cpus_read_lock();
1774 /* Prevent text modification */
1775 mutex_lock(&text_mutex);
1776 ret = prepare_kprobe(p);
1777 mutex_unlock(&text_mutex);
1778 cpus_read_unlock();
1779 if (ret)
1780 goto out;
1781
1782 /*
1783 * Multi ftrace kprobes do not have single address,
1784 * so they are not stored in the kprobe_table hash.
1785 */
1786 if (kprobe_single(p)) {
1787 INIT_HLIST_NODE(&p->hlist);
1788 hlist_add_head_rcu(&p->hlist,
1789 &kprobe_table[hash_ptr(p->addr, KPROBE_HASH_BITS)]);
1790 }
1791
1792 if (!kprobes_all_disarmed && !kprobe_disabled(p)) {
1793 ret = arm_kprobe(p);
1794 if (ret) {
1795 if (kprobe_single(p))
1796 hlist_del_rcu(&p->hlist);
1797 synchronize_rcu();
1798 goto out;
1799 }
1800 }
1801
1802 /* Try to optimize kprobe */
1803 try_to_optimize_kprobe(p);
1804 out:
1805 mutex_unlock(&kprobe_mutex);
1806
1807 if (probed_mod)
1808 module_put(probed_mod);
1809
1810 return ret;
1811 }
1812 EXPORT_SYMBOL_GPL(register_kprobe);
1813

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

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