linux-kernel - [jolsa-perf:kprobe/multi 7/13] samples/kprobes/kprobe_example.c:124:5: error: 'struct kprobe' has no member named 'multi'

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Message-ID: <202112291203.QEXXBIxn-lkp@intel.com>
Date:   Wed, 29 Dec 2021 13:05:13 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [jolsa-perf:kprobe/multi 7/13]
 samples/kprobes/kprobe_example.c:124:5: error: 'struct kprobe' has no member
 named 'multi'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git kprobe/multi
head:   774280c9bc95e4e50cda3cd09324bd03fec50b52
commit: 2bf53e58ccdc41fb37bc2768bfa17ed9f822bf1e [7/13] samples/kprobes: Add support for multi kprobe interface
config: x86_64-randconfig-c022-20211228 (https://download.01.org/0day-ci/archive/20211229/202112291203.QEXXBIxn-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=2bf53e58ccdc41fb37bc2768bfa17ed9f822bf1e
        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 2bf53e58ccdc41fb37bc2768bfa17ed9f822bf1e
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   samples/kprobes/kprobe_example.c: In function 'kprobe_init':
>> samples/kprobes/kprobe_example.c:124:5: error: 'struct kprobe' has no member named 'multi'
     124 |   kp.multi.symbols = (const char **) symbols;
         |     ^
   samples/kprobes/kprobe_example.c:125:5: error: 'struct kprobe' has no member named 'multi'
     125 |   kp.multi.cnt = cnt;
         |     ^


vim +124 samples/kprobes/kprobe_example.c

    98	
    99	static int __init kprobe_init(void)
   100	{
   101		char *p, *tmp, **symbols = NULL;
   102		int cnt, ret;
   103	
   104		kp.pre_handler = handler_pre;
   105		kp.post_handler = handler_post;
   106	
   107		if (strchr(symbol, ',')) {
   108			tmp = kstrdup(symbol, GFP_KERNEL);
   109			if (!tmp)
   110				return -ENOMEM;
   111	
   112			p = strchr(tmp, ',');
   113			while (p) {
   114				*p = ' ';
   115				p = strchr(p + 1, ',');
   116			}
   117	
   118			symbols = argv_split(GFP_KERNEL, tmp, &cnt);
   119			if (!symbols) {
   120				ret = -ENOMEM;
   121				goto out;
   122			}
   123	
 > 124			kp.multi.symbols = (const char **) symbols;
   125			kp.multi.cnt = cnt;
   126		}
   127	
   128		ret = register_kprobe(&kp);
   129		if (ret < 0) {
   130			pr_err("register_kprobe failed, returned %d\n", ret);
   131			goto out;
   132		}
   133	
   134		if (symbols)
   135			pr_info("Planted multi kprobe to %s\n", symbol);
   136		else
   137			pr_info("Planted kprobe at %p\n", kp.addr);
   138	
   139	out:
   140		kfree(tmp);
   141		if (symbols)
   142			argv_free(symbols);
   143		return ret;
   144	}
   145	

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