[jolsa-perf:bpf/tracing_multi_4 8/35] kernel/trace/ftrace.c:5636:22: sparse: sparse: incorrect type in assignment (different address spaces)

From: kernel test robot
Date: Wed Aug 03 2022 - 10:56:19 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tracing_multi_4
head: a63fc296e166a76b3f7250a966df4651e3a846f1
commit: 0684ed1bd5511a50ab8f70973fe310d711027dc9 [8/35] ftrace: Add set_ftrace_direct function
config: i386-randconfig-s003-20220801 (https://download.01.org/0day-ci/archive/20220803/202208032229.zPwzxkjq-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=0684ed1bd5511a50ab8f70973fe310d711027dc9
git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
git fetch --no-tags jolsa-perf bpf/tracing_multi_4
git checkout 0684ed1bd5511a50ab8f70973fe310d711027dc9
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash kernel/trace/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)
kernel/trace/ftrace.c:116:59: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@ got struct ftrace_ops * @@
kernel/trace/ftrace.c:116:59: sparse: expected struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list
kernel/trace/ftrace.c:116:59: sparse: got struct ftrace_ops *
kernel/trace/ftrace.c:195:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_ops *ops @@ got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@
kernel/trace/ftrace.c:195:49: sparse: expected struct ftrace_ops *ops
kernel/trace/ftrace.c:195:49: sparse: got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list
kernel/trace/ftrace.c:278:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops [noderef] __rcu * @@ got struct ftrace_ops * @@
kernel/trace/ftrace.c:278:23: sparse: expected struct ftrace_ops [noderef] __rcu *
kernel/trace/ftrace.c:278:23: sparse: got struct ftrace_ops *
kernel/trace/ftrace.c:282:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops **p @@ got struct ftrace_ops [noderef] __rcu **list @@
kernel/trace/ftrace.c:282:16: sparse: expected struct ftrace_ops **p
kernel/trace/ftrace.c:282:16: sparse: got struct ftrace_ops [noderef] __rcu **list
kernel/trace/ftrace.c:282:50: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops **p @@ got struct ftrace_ops [noderef] __rcu ** @@
kernel/trace/ftrace.c:282:50: sparse: expected struct ftrace_ops **p
kernel/trace/ftrace.c:282:50: sparse: got struct ftrace_ops [noderef] __rcu **
kernel/trace/ftrace.c:289:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops * @@ got struct ftrace_ops [noderef] __rcu *next @@
kernel/trace/ftrace.c:289:12: sparse: expected struct ftrace_ops *
kernel/trace/ftrace.c:289:12: sparse: got struct ftrace_ops [noderef] __rcu *next
kernel/trace/ftrace.c:1031:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash [noderef] __rcu *notrace_hash @@ got struct ftrace_hash * @@
kernel/trace/ftrace.c:1031:43: sparse: expected struct ftrace_hash [noderef] __rcu *notrace_hash
kernel/trace/ftrace.c:1031:43: sparse: got struct ftrace_hash *
kernel/trace/ftrace.c:1032:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash [noderef] __rcu *filter_hash @@ got struct ftrace_hash * @@
kernel/trace/ftrace.c:1032:43: sparse: expected struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:1032:43: sparse: got struct ftrace_hash *
kernel/trace/ftrace.c:1259:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:1259:40: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:1259:40: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:1260:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:1260:40: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:1260:40: sparse: got struct ftrace_hash [noderef] __rcu *notrace_hash
kernel/trace/ftrace.c:2025:54: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash *old_hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:2025:54: sparse: expected struct ftrace_hash *old_hash
kernel/trace/ftrace.c:2025:54: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:1454:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/ftrace.c:1454:9: sparse: struct ftrace_hash [noderef] __rcu *
kernel/trace/ftrace.c:1454:9: sparse: struct ftrace_hash *
kernel/trace/ftrace.c:1470:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:1471:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:1472:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:1473:42: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:1644:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops *ops @@ got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@
kernel/trace/ftrace.c:1645:43: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops *ops @@ got struct ftrace_ops [noderef] __rcu *next @@
kernel/trace/ftrace.c:1693:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:1694:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *other_hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:1699:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:1700:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *other_hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:3148:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:3149:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:3153:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:2003:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:2014:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:3366:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:3383:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:3963:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:3966:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:4390:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:4392:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:4765:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:4909:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:4915:34: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash [noderef] __rcu *filter_hash @@ got struct ftrace_hash *[assigned] old_hash @@
kernel/trace/ftrace.c:5189:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:5191:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:5435:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
>> kernel/trace/ftrace.c:5636:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:5638:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:5792:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:5854:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:5902:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:6247:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:6251:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig_hash @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:6955:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops *ops @@ got struct ftrace_ops [noderef] __rcu *[addressable] [toplevel] ftrace_ops_list @@
kernel/trace/ftrace.c:6955:66: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_ops *ops @@ got struct ftrace_ops [noderef] __rcu *next @@
kernel/trace/ftrace.c:7007:59: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:7008:59: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:7390:62: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:7391:62: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:7436:36: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/ftrace.c:7436:36: sparse: struct ftrace_ops [noderef] __rcu *
kernel/trace/ftrace.c:7436:36: sparse: struct ftrace_ops *
kernel/trace/ftrace.c:8211:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:8211:14: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:8211:14: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:8260:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:8260:14: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:8260:14: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:193:20: sparse: sparse: dereference of noderef expression
kernel/trace/ftrace.c:193:20: sparse: sparse: dereference of noderef expression
kernel/trace/ftrace.c:193:20: sparse: sparse: dereference of noderef expression
kernel/trace/ftrace.c:3125:48: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *filter_hash @@
kernel/trace/ftrace.c:3125:48: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:3125:48: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:3126:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct ftrace_hash *hash @@ got struct ftrace_hash [noderef] __rcu *notrace_hash @@
kernel/trace/ftrace.c:3126:49: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:3126:49: sparse: got struct ftrace_hash [noderef] __rcu *notrace_hash

vim +5636 kernel/trace/ftrace.c

5617
5618 static int set_ftrace_ops(struct ftrace_ops *ops, struct ftrace_hash *set, int enable)
5619 {
5620 struct ftrace_func_entry *iter, *entry;
5621 struct ftrace_hash **orig, *hash = NULL;
5622 int i, err = -ENOMEM, size;
5623 unsigned long ip;
5624 bool enabled;
5625
5626 if (!set)
5627 return -EINVAL;
5628 if (unlikely(ftrace_disabled))
5629 return -ENODEV;
5630
5631 mutex_lock(&direct_mutex);
5632
5633 ftrace_ops_init(ops);
5634
5635 if (enable)
> 5636 orig = &ops->func_hash->filter_hash;
5637 else
5638 orig = &ops->func_hash->notrace_hash;
5639
5640 hash = *orig ?: EMPTY_HASH;
5641 hash = dup_hash(hash, hash->count, false);
5642 if (!hash)
5643 goto out_unlock_direct;
5644
5645 err = -EBUSY;
5646 size = 1 << set->size_bits;
5647 for (i = 0; i < size; i++) {
5648 hlist_for_each_entry(iter, &set->buckets[i], hlist) {
5649 ip = ftrace_location(iter->ip);
5650 if (!ip) {
5651 err = -EINVAL;
5652 goto out_unlock_direct;
5653 }
5654 entry = __ftrace_lookup_ip(hash, ip);
5655 if (!entry) {
5656 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
5657 if (!entry) {
5658 err = -ENOMEM;
5659 goto out_unlock_direct;
5660 }
5661 entry->ip = ip;
5662 entry->direct = iter->direct;
5663 ftrace_hash_add_entry(hash, entry);
5664 } if (iter->direct)
5665 entry->direct = iter->direct;
5666 else
5667 free_hash_entry(hash, entry);
5668 }
5669 }
5670
5671 mutex_lock(&ftrace_lock);
5672
5673 enabled = ops->flags & FTRACE_OPS_FL_ENABLED;
5674
5675 if ((hash->count == 0) && enabled) {
5676 /* no functions to enable, going down */
5677 err = ftrace_shutdown(ops, 0);
5678 if (err)
5679 goto out_unlock_ftrace;
5680 err = ftrace_hash_move_and_update_ops(ops, orig, hash, enable);
5681 ftrace_hash_free(direct_functions);
5682 direct_functions = EMPTY_HASH;
5683 } else if (!enabled) {
5684 /* ops not enabled, starting */
5685 ftrace_hash_free(direct_functions);
5686 direct_functions = dup_hash(hash, hash->count, false);
5687 if (!direct_functions)
5688 goto out_unlock_ftrace;
5689
5690 err = ftrace_hash_move_and_update_ops(ops, orig, hash, enable);
5691 if (err)
5692 goto out_unlock_ftrace;
5693 err = ftrace_startup(ops, 0);
5694 } else {
5695 /* ops enabled, we need to shut it down, change and start again */
5696 err = ftrace_shutdown(ops, 0);
5697 if (err)
5698 goto out_unlock_ftrace;
5699 err = ftrace_hash_move_and_update_ops(ops, orig, EMPTY_HASH, enable);
5700 if (err)
5701 goto out_unlock_ftrace;
5702
5703 ftrace_hash_free(direct_functions);
5704 direct_functions = dup_hash(hash, hash->count, false);
5705 if (!direct_functions)
5706 goto out_unlock_ftrace;
5707
5708 err = ftrace_hash_move_and_update_ops(ops, orig, hash, enable);
5709 if (err)
5710 goto out_unlock_ftrace;
5711 err = ftrace_startup(ops, 0);
5712 }
5713
5714 out_unlock_ftrace:
5715 mutex_unlock(&ftrace_lock);
5716
5717 out_unlock_direct:
5718 mutex_unlock(&direct_mutex);
5719 ftrace_hash_free(hash);
5720 return err;
5721 }
5722

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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