[jolsa-perf:bpf/tramp_22 8/21] kernel/trace/ftrace.c:5582:22: sparse: sparse: incorrect type in assignment (different address spaces)

From: kernel test robot
Date: Tue Jul 05 2022 - 23:59:28 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tramp_22
head: 1d891c46bb689a24985cea58f4eddb053d6b1331
commit: 5b091bc758fd64f7f3748f61c0e43e09b9366a1a [8/21] ftrace: Add set_ftrace_direct function
config: i386-randconfig-s001 (https://download.01.org/0day-ci/archive/20220706/202207061143.x1Av3ceC-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=5b091bc758fd64f7f3748f61c0e43e09b9366a1a
git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
git fetch --no-tags jolsa-perf bpf/tramp_22
git checkout 5b091bc758fd64f7f3748f61c0e43e09b9366a1a
# 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:1987:54: 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:1987:54: sparse: expected struct ftrace_hash *old_hash
kernel/trace/ftrace.c:1987:54: 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:1965:50: 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:1976:50: 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:3316:14: 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:3333:22: 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:3913:22: 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:3916:22: 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:4340:27: 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:4342:27: 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:4715:19: 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:4859:19: 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:4865:34: 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:5139:27: 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:5141:27: 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:5383:14: 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:5582:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:5584:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash **orig @@ got struct ftrace_hash [noderef] __rcu ** @@
kernel/trace/ftrace.c:5741:14: 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:5803:50: 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:5870:14: 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:6095:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash [noderef] __rcu *extern [addressable] [toplevel] ftrace_graph_hash @@ got struct ftrace_hash *[assigned] hash @@
kernel/trace/ftrace.c:6097:43: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ftrace_hash [noderef] __rcu *extern [addressable] [toplevel] ftrace_graph_notrace_hash @@ got struct ftrace_hash *[assigned] hash @@
kernel/trace/ftrace.c:6158:35: 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:6162:35: 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:6216:47: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash [noderef] __rcu *[addressable] [toplevel] ftrace_graph_hash @@ got struct ftrace_hash * @@
kernel/trace/ftrace.c:6217:55: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ftrace_hash [noderef] __rcu *[addressable] [toplevel] ftrace_graph_notrace_hash @@ got struct ftrace_hash * @@
kernel/trace/ftrace.c:6866:18: 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:6866:66: 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:6918:59: 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:6919:59: 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:7301:62: 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:7302:62: 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:7347:36: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/ftrace.c:7347:36: sparse: struct ftrace_ops [noderef] __rcu *
kernel/trace/ftrace.c:7347:36: sparse: struct ftrace_ops *
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:3111:46: 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:3111:46: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:3111:46: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:3112:47: 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:3112:47: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:3112:47: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:3116:44: 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:3116:44: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:3116:44: sparse: got struct ftrace_hash [noderef] __rcu *notrace_hash
kernel/trace/ftrace.c:3088:48: 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:3088:48: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:3088:48: sparse: got struct ftrace_hash [noderef] __rcu *filter_hash
kernel/trace/ftrace.c:3089:49: 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:3089:49: sparse: expected struct ftrace_hash *hash
kernel/trace/ftrace.c:3089:49: sparse: got struct ftrace_hash [noderef] __rcu *notrace_hash

vim +5582 kernel/trace/ftrace.c

5565
5566 static int set_ftrace_ops(struct ftrace_ops *ops, struct ftrace_hash *set, int enable)
5567 {
5568 struct ftrace_func_entry *iter, *entry;
5569 struct ftrace_hash **orig, *hash = NULL;
5570 int i, err = -ENOMEM, size;
5571 unsigned long ip;
5572 bool enabled;
5573
5574 if (!set)
5575 return -EINVAL;
5576 if (unlikely(ftrace_disabled))
5577 return -ENODEV;
5578
5579 mutex_lock(&direct_mutex);
5580
5581 if (enable)
> 5582 orig = &ops->func_hash->filter_hash;
5583 else
5584 orig = &ops->func_hash->notrace_hash;
5585
5586 hash = dup_hash(*orig, (*orig)->count, false);
5587 if (!hash)
5588 goto out_unlock_direct;
5589
5590 err = -EBUSY;
5591 size = 1 << set->size_bits;
5592 for (i = 0; i < size; i++) {
5593 hlist_for_each_entry(iter, &set->buckets[i], hlist) {
5594 ip = ftrace_location(iter->ip);
5595 if (!ip) {
5596 err = -EINVAL;
5597 goto out_unlock_direct;
5598 }
5599 entry = __ftrace_lookup_ip(hash, ip);
5600 if (!entry) {
5601 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
5602 if (!entry) {
5603 err = -ENOMEM;
5604 goto out_unlock_direct;
5605 }
5606 entry->ip = ip;
5607 entry->direct = iter->direct;
5608 ftrace_hash_add_entry(hash, entry);
5609 continue;
5610 }
5611 if (iter->direct)
5612 entry->direct = iter->direct;
5613 else
5614 free_hash_entry(hash, entry);
5615 }
5616 }
5617
5618 mutex_lock(&ftrace_lock);
5619
5620 ftrace_ops_init(ops);
5621 enabled = ops->flags & FTRACE_OPS_FL_ENABLED;
5622
5623 if ((hash->count == 0) && enabled) {
5624 /* no functions to enable, going down */
5625 err = ftrace_shutdown(ops, 0);
5626 if (err)
5627 goto out_unlock_ftrace;
5628 err = ftrace_hash_move_and_update_ops(ops, orig, hash, enable);
5629 ftrace_hash_free(direct_functions);
5630 direct_functions = NULL;
5631 } else if (!enabled) {
5632 /* ops not enabled, starting */
5633 ftrace_hash_free(direct_functions);
5634 direct_functions = dup_hash(hash, hash->count, false);
5635 if (!direct_functions)
5636 goto out_unlock_ftrace;
5637
5638 err = ftrace_hash_move_and_update_ops(ops, orig, hash, enable);
5639 if (err)
5640 goto out_unlock_ftrace;
5641 err = ftrace_startup(ops, 0);
5642 } else {
5643 /* ops enabled, we need to shut it down, change and start again */
5644 err = ftrace_shutdown(ops, 0);
5645 if (err)
5646 goto out_unlock_ftrace;
5647 err = ftrace_hash_move_and_update_ops(ops, orig, EMPTY_HASH, enable);
5648 if (err)
5649 goto out_unlock_ftrace;
5650
5651 ftrace_hash_free(direct_functions);
5652 direct_functions = dup_hash(hash, hash->count, false);
5653 if (!direct_functions)
5654 goto out_unlock_ftrace;
5655
5656 err = ftrace_hash_move_and_update_ops(ops, orig, hash, enable);
5657 if (err)
5658 goto out_unlock_ftrace;
5659 err = ftrace_startup(ops, 0);
5660 }
5661
5662 out_unlock_ftrace:
5663 mutex_unlock(&ftrace_lock);
5664
5665 out_unlock_direct:
5666 mutex_unlock(&direct_mutex);
5667 ftrace_hash_free(hash);
5668 return err;
5669 }
5670

--
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