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authorMark Brown <broonie@kernel.org>2022-10-19 18:37:01 +0300
committerMark Brown <broonie@kernel.org>2022-10-19 18:37:01 +0300
commit008f05a72d32dcc14038801649ec67af765fcc3c (patch)
treec958a2ab7039ea3e03621b1cbae4fcad41ee947c /kernel/bpf/arraymap.c
parent32def55d237e8507d4eb8442628fc2e59a899ea0 (diff)
parentdf496157a5afa1b6d1f4c46ad6549c2c346d1e59 (diff)
downloadlinux-008f05a72d32dcc14038801649ec67af765fcc3c.tar.xz
ASoC: jz4752b: Capture fixes
Merge series from Siarhei Volkau <lis8215@gmail.com>: The patchset fixes: - Line In path stays powered off during capturing or bypass to mixer. - incorrectly represented dB values in alsamixer, et al. - incorrect represented Capture input selector in alsamixer in Playback tab. - wrong control selected as Capture Master
Diffstat (limited to 'kernel/bpf/arraymap.c')
-rw-r--r--kernel/bpf/arraymap.c33
1 files changed, 24 insertions, 9 deletions
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 624527401d4d..832b2659e96e 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -279,7 +279,8 @@ int bpf_percpu_array_copy(struct bpf_map *map, void *key, void *value)
rcu_read_lock();
pptr = array->pptrs[index & array->index_mask];
for_each_possible_cpu(cpu) {
- bpf_long_memcpy(value + off, per_cpu_ptr(pptr, cpu), size);
+ copy_map_value_long(map, value + off, per_cpu_ptr(pptr, cpu));
+ check_and_init_map_value(map, value + off);
off += size;
}
rcu_read_unlock();
@@ -338,8 +339,9 @@ static int array_map_update_elem(struct bpf_map *map, void *key, void *value,
return -EINVAL;
if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY) {
- memcpy(this_cpu_ptr(array->pptrs[index & array->index_mask]),
- value, map->value_size);
+ val = this_cpu_ptr(array->pptrs[index & array->index_mask]);
+ copy_map_value(map, val, value);
+ check_and_free_fields(array, val);
} else {
val = array->value +
(u64)array->elem_size * (index & array->index_mask);
@@ -383,7 +385,8 @@ int bpf_percpu_array_update(struct bpf_map *map, void *key, void *value,
rcu_read_lock();
pptr = array->pptrs[index & array->index_mask];
for_each_possible_cpu(cpu) {
- bpf_long_memcpy(per_cpu_ptr(pptr, cpu), value + off, size);
+ copy_map_value_long(map, per_cpu_ptr(pptr, cpu), value + off);
+ check_and_free_fields(array, per_cpu_ptr(pptr, cpu));
off += size;
}
rcu_read_unlock();
@@ -421,8 +424,20 @@ static void array_map_free(struct bpf_map *map)
int i;
if (map_value_has_kptrs(map)) {
- for (i = 0; i < array->map.max_entries; i++)
- bpf_map_free_kptrs(map, array_map_elem_ptr(array, i));
+ if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY) {
+ for (i = 0; i < array->map.max_entries; i++) {
+ void __percpu *pptr = array->pptrs[i & array->index_mask];
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ bpf_map_free_kptrs(map, per_cpu_ptr(pptr, cpu));
+ cond_resched();
+ }
+ }
+ } else {
+ for (i = 0; i < array->map.max_entries; i++)
+ bpf_map_free_kptrs(map, array_map_elem_ptr(array, i));
+ }
bpf_map_free_kptr_off_tab(map);
}
@@ -608,9 +623,9 @@ static int __bpf_array_map_seq_show(struct seq_file *seq, void *v)
pptr = v;
size = array->elem_size;
for_each_possible_cpu(cpu) {
- bpf_long_memcpy(info->percpu_value_buf + off,
- per_cpu_ptr(pptr, cpu),
- size);
+ copy_map_value_long(map, info->percpu_value_buf + off,
+ per_cpu_ptr(pptr, cpu));
+ check_and_init_map_value(map, info->percpu_value_buf + off);
off += size;
}
ctx.value = info->percpu_value_buf;