From: JP Kobryn <inwardvessel@xxxxxxxxx>
This patch changes the return types of bpf_map_ops functions to long, where
previously int was returned. Using long allows for bpf programs to maintain
the sign bit in cases where a bpf helper func makes an inline call to one
of these bpf_map_ops funcs and a negative error is returned.
Signed-off-by: JP Kobryn <inwardvessel@xxxxxxxxx>
---
include/linux/bpf.h | 10 +++++-----
kernel/bpf/arraymap.c | 8 ++++----
kernel/bpf/bloom_filter.c | 12 ++++++------
kernel/bpf/bpf_cgrp_storage.c | 6 +++---
kernel/bpf/bpf_inode_storage.c | 6 +++---
kernel/bpf/bpf_struct_ops.c | 6 +++---
kernel/bpf/bpf_task_storage.c | 6 +++---
kernel/bpf/cpumap.c | 6 +++---
kernel/bpf/devmap.c | 20 ++++++++++----------
kernel/bpf/hashtab.c | 32 ++++++++++++++++----------------
kernel/bpf/local_storage.c | 6 +++---
kernel/bpf/lpm_trie.c | 6 +++---
kernel/bpf/queue_stack_maps.c | 22 +++++++++++-----------
kernel/bpf/reuseport_array.c | 2 +-
kernel/bpf/ringbuf.c | 6 +++---
kernel/bpf/stackmap.c | 6 +++---
kernel/bpf/verifier.c | 10 +++++-----
net/core/bpf_sk_storage.c | 6 +++---
net/core/sock_map.c | 8 ++++----
net/xdp/xskmap.c | 6 +++---
20 files changed, 95 insertions(+), 95 deletions(-)
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 3ef98fb92987..7c972ffd1cf4 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -96,11 +96,11 @@ struct bpf_map_ops {
/* funcs callable from userspace and from eBPF programs */
void *(*map_lookup_elem)(struct bpf_map *map, void *key);
- int (*map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags);
- int (*map_delete_elem)(struct bpf_map *map, void *key);
- int (*map_push_elem)(struct bpf_map *map, void *value, u64 flags);
- int (*map_pop_elem)(struct bpf_map *map, void *value);
- int (*map_peek_elem)(struct bpf_map *map, void *value);
+ long (*map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags);
+ long (*map_delete_elem)(struct bpf_map *map, void *key);
+ long (*map_push_elem)(struct bpf_map *map, void *value, u64 flags);
+ long (*map_pop_elem)(struct bpf_map *map, void *value);
+ long (*map_peek_elem)(struct bpf_map *map, void *value);
void *(*map_lookup_percpu_elem)(struct bpf_map *map, void *key, u32 cpu);
/* funcs called by prog_array and perf_event_array map */
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 1588c793a715..05fc57d0de03 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -307,8 +307,8 @@ static int array_map_get_next_key(struct bpf_map *map, void *key, void *next_key
}
/* Called from syscall or from eBPF program */
-static int array_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long array_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
struct bpf_array *array = container_of(map, struct bpf_array, map);
u32 index = *(u32 *)key;
@@ -386,7 +386,7 @@ int bpf_percpu_array_update(struct bpf_map *map, void *key, void *value,
}
/* Called from syscall or from eBPF program */
-static int array_map_delete_elem(struct bpf_map *map, void *key)
+static long array_map_delete_elem(struct bpf_map *map, void *key)
{
return -EINVAL;
}
@@ -871,7 +871,7 @@ int bpf_fd_array_map_update_elem(struct bpf_map *map, struct file *map_file,
return 0;
}
-static int fd_array_map_delete_elem(struct bpf_map *map, void *key)
+static long fd_array_map_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_array *array = container_of(map, struct bpf_array, map);
void *old_ptr;
diff --git a/kernel/bpf/bloom_filter.c b/kernel/bpf/bloom_filter.c
index 6350c5d35a9b..db19784601a7 100644
--- a/kernel/bpf/bloom_filter.c
+++ b/kernel/bpf/bloom_filter.c
@@ -41,7 +41,7 @@ static u32 hash(struct bpf_bloom_filter *bloom, void *value,
return h & bloom->bitset_mask;
}
-static int bloom_map_peek_elem(struct bpf_map *map, void *value)
+static long bloom_map_peek_elem(struct bpf_map *map, void *value)
{
struct bpf_bloom_filter *bloom =
container_of(map, struct bpf_bloom_filter, map);
@@ -56,7 +56,7 @@ static int bloom_map_peek_elem(struct bpf_map *map, void *value)
return 0;
}
-static int bloom_map_push_elem(struct bpf_map *map, void *value, u64 flags)
+static long bloom_map_push_elem(struct bpf_map *map, void *value, u64 flags)
{
struct bpf_bloom_filter *bloom =
container_of(map, struct bpf_bloom_filter, map);
@@ -73,12 +73,12 @@ static int bloom_map_push_elem(struct bpf_map *map, void *value, u64 flags)
return 0;
}
-static int bloom_map_pop_elem(struct bpf_map *map, void *value)
+static long bloom_map_pop_elem(struct bpf_map *map, void *value)
{
return -EOPNOTSUPP;
}
-static int bloom_map_delete_elem(struct bpf_map *map, void *value)
+static long bloom_map_delete_elem(struct bpf_map *map, void *value)
{
return -EOPNOTSUPP;
}
@@ -177,8 +177,8 @@ static void *bloom_map_lookup_elem(struct bpf_map *map, void *key)
return ERR_PTR(-EINVAL);
}
-static int bloom_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 flags)
+static long bloom_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 flags)
{
/* The eBPF program should use map_push_elem instead */
return -EINVAL;
diff --git a/kernel/bpf/bpf_cgrp_storage.c b/kernel/bpf/bpf_cgrp_storage.c
index c975cacdd16b..f5b016a5484d 100644
--- a/kernel/bpf/bpf_cgrp_storage.c
+++ b/kernel/bpf/bpf_cgrp_storage.c
@@ -93,8 +93,8 @@ static void *bpf_cgrp_storage_lookup_elem(struct bpf_map *map, void *key)
return sdata ? sdata->data : NULL;
}
-static int bpf_cgrp_storage_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags)
+static long bpf_cgrp_storage_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags)
{
struct bpf_local_storage_data *sdata;
struct cgroup *cgroup;
@@ -125,7 +125,7 @@ static int cgroup_storage_delete(struct cgroup *cgroup, struct bpf_map *map)
return 0;
}
-static int bpf_cgrp_storage_delete_elem(struct bpf_map *map, void *key)
+static long bpf_cgrp_storage_delete_elem(struct bpf_map *map, void *key)
{
struct cgroup *cgroup;
int err, fd;
diff --git a/kernel/bpf/bpf_inode_storage.c b/kernel/bpf/bpf_inode_storage.c
index ad2ab0187e45..9a5f05151898 100644
--- a/kernel/bpf/bpf_inode_storage.c
+++ b/kernel/bpf/bpf_inode_storage.c
@@ -91,8 +91,8 @@ static void *bpf_fd_inode_storage_lookup_elem(struct bpf_map *map, void *key)
return sdata ? sdata->data : NULL;
}
-static int bpf_fd_inode_storage_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags)
+static long bpf_fd_inode_storage_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags)
{
struct bpf_local_storage_data *sdata;
struct file *f;
@@ -127,7 +127,7 @@ static int inode_storage_delete(struct inode *inode, struct bpf_map *map)
return 0;
}
-static int bpf_fd_inode_storage_delete_elem(struct bpf_map *map, void *key)
+static long bpf_fd_inode_storage_delete_elem(struct bpf_map *map, void *key)
{
struct file *f;
int fd, err;
diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index 38903fb52f98..ba7a94276e3b 100644
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -349,8 +349,8 @@ int bpf_struct_ops_prepare_trampoline(struct bpf_tramp_links *tlinks,
model, flags, tlinks, NULL);
}
-static int bpf_struct_ops_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 flags)
+static long bpf_struct_ops_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 flags)
{
struct bpf_struct_ops_map *st_map = (struct bpf_struct_ops_map *)map;
const struct bpf_struct_ops *st_ops = st_map->st_ops;
@@ -524,7 +524,7 @@ static int bpf_struct_ops_map_update_elem(struct bpf_map *map, void *key,
return err;
}
-static int bpf_struct_ops_map_delete_elem(struct bpf_map *map, void *key)
+static long bpf_struct_ops_map_delete_elem(struct bpf_map *map, void *key)
{
enum bpf_struct_ops_state prev_state;
struct bpf_struct_ops_map *st_map;
diff --git a/kernel/bpf/bpf_task_storage.c b/kernel/bpf/bpf_task_storage.c
index c88cc04c17c1..ab5bd1ef58c4 100644
--- a/kernel/bpf/bpf_task_storage.c
+++ b/kernel/bpf/bpf_task_storage.c
@@ -120,8 +120,8 @@ static void *bpf_pid_task_storage_lookup_elem(struct bpf_map *map, void *key)
return ERR_PTR(err);
}
-static int bpf_pid_task_storage_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags)
+static long bpf_pid_task_storage_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags)
{
struct bpf_local_storage_data *sdata;
struct task_struct *task;
@@ -173,7 +173,7 @@ static int task_storage_delete(struct task_struct *task, struct bpf_map *map,
return 0;
}
-static int bpf_pid_task_storage_delete_elem(struct bpf_map *map, void *key)
+static long bpf_pid_task_storage_delete_elem(struct bpf_map *map, void *key)
{
struct task_struct *task;
unsigned int f_flags;
diff --git a/kernel/bpf/cpumap.c b/kernel/bpf/cpumap.c
index 871809e71b4e..1120cc8cc1c4 100644
--- a/kernel/bpf/cpumap.c
+++ b/kernel/bpf/cpumap.c
@@ -540,7 +540,7 @@ static void __cpu_map_entry_replace(struct bpf_cpu_map *cmap,
}
}
-static int cpu_map_delete_elem(struct bpf_map *map, void *key)
+static long cpu_map_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_cpu_map *cmap = container_of(map, struct bpf_cpu_map, map);
u32 key_cpu = *(u32 *)key;
@@ -553,8 +553,8 @@ static int cpu_map_delete_elem(struct bpf_map *map, void *key)
return 0;
}
-static int cpu_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long cpu_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
struct bpf_cpu_map *cmap = container_of(map, struct bpf_cpu_map, map);
struct bpf_cpumap_val cpumap_value = {};
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index 19b036a228f7..d0461c2b1289 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -809,7 +809,7 @@ static void __dev_map_entry_free(struct rcu_head *rcu)
kfree(dev);
}
-static int dev_map_delete_elem(struct bpf_map *map, void *key)
+static long dev_map_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_dtab *dtab = container_of(map, struct bpf_dtab, map);
struct bpf_dtab_netdev *old_dev;
@@ -826,7 +826,7 @@ static int dev_map_delete_elem(struct bpf_map *map, void *key)
return 0;
}
-static int dev_map_hash_delete_elem(struct bpf_map *map, void *key)
+static long dev_map_hash_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_dtab *dtab = container_of(map, struct bpf_dtab, map);
struct bpf_dtab_netdev *old_dev;
@@ -897,8 +897,8 @@ static struct bpf_dtab_netdev *__dev_map_alloc_node(struct net *net,
return ERR_PTR(-EINVAL);
}
-static int __dev_map_update_elem(struct net *net, struct bpf_map *map,
- void *key, void *value, u64 map_flags)
+static long __dev_map_update_elem(struct net *net, struct bpf_map *map,
+ void *key, void *value, u64 map_flags)
{
struct bpf_dtab *dtab = container_of(map, struct bpf_dtab, map);
struct bpf_dtab_netdev *dev, *old_dev;
@@ -939,15 +939,15 @@ static int __dev_map_update_elem(struct net *net, struct bpf_map *map,
return 0;
}
-static int dev_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long dev_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
return __dev_map_update_elem(current->nsproxy->net_ns,
map, key, value, map_flags);
}
-static int __dev_map_hash_update_elem(struct net *net, struct bpf_map *map,
- void *key, void *value, u64 map_flags)
+static long __dev_map_hash_update_elem(struct net *net, struct bpf_map *map,
+ void *key, void *value, u64 map_flags)
{
struct bpf_dtab *dtab = container_of(map, struct bpf_dtab, map);
struct bpf_dtab_netdev *dev, *old_dev;
@@ -999,8 +999,8 @@ static int __dev_map_hash_update_elem(struct net *net, struct bpf_map *map,
return err;
}
-static int dev_map_hash_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long dev_map_hash_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
return __dev_map_hash_update_elem(current->nsproxy->net_ns,
map, key, value, map_flags);
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index 0df4b0c10f59..38ee2e0cdab9 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -1073,8 +1073,8 @@ static int check_flags(struct bpf_htab *htab, struct htab_elem *l_old,
}
/* Called from syscall or from eBPF program */
-static int htab_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long htab_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
struct htab_elem *l_new = NULL, *l_old;
@@ -1175,8 +1175,8 @@ static void htab_lru_push_free(struct bpf_htab *htab, struct htab_elem *elem)
bpf_lru_push_free(&htab->lru, &elem->lru_node);
}
-static int htab_lru_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long htab_lru_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
struct htab_elem *l_new, *l_old = NULL;
@@ -1242,9 +1242,9 @@ static int htab_lru_map_update_elem(struct bpf_map *map, void *key, void *value,
return ret;
}
-static int __htab_percpu_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags,
- bool onallcpus)
+static long __htab_percpu_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags,
+ bool onallcpus)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
struct htab_elem *l_new = NULL, *l_old;
@@ -1297,9 +1297,9 @@ static int __htab_percpu_map_update_elem(struct bpf_map *map, void *key,
return ret;
}
-static int __htab_lru_percpu_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags,
- bool onallcpus)
+static long __htab_lru_percpu_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags,
+ bool onallcpus)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
struct htab_elem *l_new = NULL, *l_old;
@@ -1364,21 +1364,21 @@ static int __htab_lru_percpu_map_update_elem(struct bpf_map *map, void *key,
return ret;
}
-static int htab_percpu_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags)
+static long htab_percpu_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags)
{
return __htab_percpu_map_update_elem(map, key, value, map_flags, false);
}
-static int htab_lru_percpu_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags)
+static long htab_lru_percpu_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags)
{
return __htab_lru_percpu_map_update_elem(map, key, value, map_flags,
false);
}
/* Called from syscall or from eBPF program */
-static int htab_map_delete_elem(struct bpf_map *map, void *key)
+static long htab_map_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
struct hlist_nulls_head *head;
@@ -1414,7 +1414,7 @@ static int htab_map_delete_elem(struct bpf_map *map, void *key)
return ret;
}
-static int htab_lru_map_delete_elem(struct bpf_map *map, void *key)
+static long htab_lru_map_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
struct hlist_nulls_head *head;
diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c
index a993560f200a..4c7bbec4a9e4 100644
--- a/kernel/bpf/local_storage.c
+++ b/kernel/bpf/local_storage.c
@@ -141,8 +141,8 @@ static void *cgroup_storage_lookup_elem(struct bpf_map *_map, void *key)
return &READ_ONCE(storage->buf)->data[0];
}
-static int cgroup_storage_update_elem(struct bpf_map *map, void *key,
- void *value, u64 flags)
+static long cgroup_storage_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 flags)
{
struct bpf_cgroup_storage *storage;
struct bpf_storage_buffer *new;
@@ -348,7 +348,7 @@ static void cgroup_storage_map_free(struct bpf_map *_map)
bpf_map_area_free(map);
}
-static int cgroup_storage_delete_elem(struct bpf_map *map, void *key)
+static long cgroup_storage_delete_elem(struct bpf_map *map, void *key)
{
return -EINVAL;
}
diff --git a/kernel/bpf/lpm_trie.c b/kernel/bpf/lpm_trie.c
index dc23f2ac9cde..e0d3ddf2037a 100644
--- a/kernel/bpf/lpm_trie.c
+++ b/kernel/bpf/lpm_trie.c
@@ -300,8 +300,8 @@ static struct lpm_trie_node *lpm_trie_node_alloc(const struct lpm_trie *trie,
}
/* Called from syscall or from eBPF program */
-static int trie_update_elem(struct bpf_map *map,
- void *_key, void *value, u64 flags)
+static long trie_update_elem(struct bpf_map *map,
+ void *_key, void *value, u64 flags)
{
struct lpm_trie *trie = container_of(map, struct lpm_trie, map);
struct lpm_trie_node *node, *im_node = NULL, *new_node = NULL;
@@ -431,7 +431,7 @@ static int trie_update_elem(struct bpf_map *map,
}
/* Called from syscall or from eBPF program */
-static int trie_delete_elem(struct bpf_map *map, void *_key)
+static long trie_delete_elem(struct bpf_map *map, void *_key)
{
struct lpm_trie *trie = container_of(map, struct lpm_trie, map);
struct bpf_lpm_trie_key *key = _key;
diff --git a/kernel/bpf/queue_stack_maps.c b/kernel/bpf/queue_stack_maps.c
index 63ecbbcb349d..601609164ef3 100644
--- a/kernel/bpf/queue_stack_maps.c
+++ b/kernel/bpf/queue_stack_maps.c
@@ -95,7 +95,7 @@ static void queue_stack_map_free(struct bpf_map *map)
bpf_map_area_free(qs);
}
-static int __queue_map_get(struct bpf_map *map, void *value, bool delete)
+static long __queue_map_get(struct bpf_map *map, void *value, bool delete)
{
struct bpf_queue_stack *qs = bpf_queue_stack(map);
unsigned long flags;
@@ -124,7 +124,7 @@ static int __queue_map_get(struct bpf_map *map, void *value, bool delete)
}
-static int __stack_map_get(struct bpf_map *map, void *value, bool delete)
+static long __stack_map_get(struct bpf_map *map, void *value, bool delete)
{
struct bpf_queue_stack *qs = bpf_queue_stack(map);
unsigned long flags;
@@ -156,32 +156,32 @@ static int __stack_map_get(struct bpf_map *map, void *value, bool delete)
}
/* Called from syscall or from eBPF program */
-static int queue_map_peek_elem(struct bpf_map *map, void *value)
+static long queue_map_peek_elem(struct bpf_map *map, void *value)
{
return __queue_map_get(map, value, false);
}
/* Called from syscall or from eBPF program */
-static int stack_map_peek_elem(struct bpf_map *map, void *value)
+static long stack_map_peek_elem(struct bpf_map *map, void *value)
{
return __stack_map_get(map, value, false);
}
/* Called from syscall or from eBPF program */
-static int queue_map_pop_elem(struct bpf_map *map, void *value)
+static long queue_map_pop_elem(struct bpf_map *map, void *value)
{
return __queue_map_get(map, value, true);
}
/* Called from syscall or from eBPF program */
-static int stack_map_pop_elem(struct bpf_map *map, void *value)
+static long stack_map_pop_elem(struct bpf_map *map, void *value)
{
return __stack_map_get(map, value, true);
}
/* Called from syscall or from eBPF program */
-static int queue_stack_map_push_elem(struct bpf_map *map, void *value,
- u64 flags)
+static long queue_stack_map_push_elem(struct bpf_map *map, void *value,
+ u64 flags)
{
struct bpf_queue_stack *qs = bpf_queue_stack(map);
unsigned long irq_flags;
@@ -227,14 +227,14 @@ static void *queue_stack_map_lookup_elem(struct bpf_map *map, void *key)
}
/* Called from syscall or from eBPF program */
-static int queue_stack_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 flags)
+static long queue_stack_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 flags)
{
return -EINVAL;
}
/* Called from syscall or from eBPF program */
-static int queue_stack_map_delete_elem(struct bpf_map *map, void *key)
+static long queue_stack_map_delete_elem(struct bpf_map *map, void *key)
{
return -EINVAL;
}
diff --git a/kernel/bpf/reuseport_array.c b/kernel/bpf/reuseport_array.c
index 71cb72f5b733..cbf2d8d784b8 100644
--- a/kernel/bpf/reuseport_array.c
+++ b/kernel/bpf/reuseport_array.c
@@ -59,7 +59,7 @@ static void *reuseport_array_lookup_elem(struct bpf_map *map, void *key)
}
/* Called from syscall only */
-static int reuseport_array_delete_elem(struct bpf_map *map, void *key)
+static long reuseport_array_delete_elem(struct bpf_map *map, void *key)
{
struct reuseport_array *array = reuseport_array(map);
u32 index = *(u32 *)key;
diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c
index 0d2a45ff83f1..875ac9b698d9 100644
--- a/kernel/bpf/ringbuf.c
+++ b/kernel/bpf/ringbuf.c
@@ -242,13 +242,13 @@ static void *ringbuf_map_lookup_elem(struct bpf_map *map, void *key)
return ERR_PTR(-ENOTSUPP);
}
-static int ringbuf_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 flags)
+static long ringbuf_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 flags)
{
return -ENOTSUPP;
}
-static int ringbuf_map_delete_elem(struct bpf_map *map, void *key)
+static long ringbuf_map_delete_elem(struct bpf_map *map, void *key)
{
return -ENOTSUPP;
}
diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c
index 0f1d8dced933..b25fce425b2c 100644
--- a/kernel/bpf/stackmap.c
+++ b/kernel/bpf/stackmap.c
@@ -618,14 +618,14 @@ static int stack_map_get_next_key(struct bpf_map *map, void *key,
return 0;
}
-static int stack_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long stack_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
return -EINVAL;
}
/* Called from syscall or from eBPF program */
-static int stack_map_delete_elem(struct bpf_map *map, void *key)
+static long stack_map_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_stack_map *smap = container_of(map, struct bpf_stack_map, map);
struct stack_map_bucket *old_bucket;
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 99394a2f7ee4..f4c8d17f37bc 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -17683,17 +17683,17 @@ static int do_misc_fixups(struct bpf_verifier_env *env)
BUILD_BUG_ON(!__same_type(ops->map_lookup_elem,
(void *(*)(struct bpf_map *map, void *key))NULL));
BUILD_BUG_ON(!__same_type(ops->map_delete_elem,
- (int (*)(struct bpf_map *map, void *key))NULL));
+ (long (*)(struct bpf_map *map, void *key))NULL));
BUILD_BUG_ON(!__same_type(ops->map_update_elem,
- (int (*)(struct bpf_map *map, void *key, void *value,
+ (long (*)(struct bpf_map *map, void *key, void *value,
u64 flags))NULL));
BUILD_BUG_ON(!__same_type(ops->map_push_elem,
- (int (*)(struct bpf_map *map, void *value,
+ (long (*)(struct bpf_map *map, void *value,
u64 flags))NULL));
BUILD_BUG_ON(!__same_type(ops->map_pop_elem,
- (int (*)(struct bpf_map *map, void *value))NULL));
+ (long (*)(struct bpf_map *map, void *value))NULL));
BUILD_BUG_ON(!__same_type(ops->map_peek_elem,
- (int (*)(struct bpf_map *map, void *value))NULL));
+ (long (*)(struct bpf_map *map, void *value))NULL));
BUILD_BUG_ON(!__same_type(ops->map_redirect,
(int (*)(struct bpf_map *map, u64 index, u64 flags))NULL));
BUILD_BUG_ON(!__same_type(ops->map_for_each_callback,
diff --git a/net/core/bpf_sk_storage.c b/net/core/bpf_sk_storage.c
index 24c3dc0d62e5..cb0f5a105b89 100644
--- a/net/core/bpf_sk_storage.c
+++ b/net/core/bpf_sk_storage.c
@@ -94,8 +94,8 @@ static void *bpf_fd_sk_storage_lookup_elem(struct bpf_map *map, void *key)
return ERR_PTR(err);
}
-static int bpf_fd_sk_storage_update_elem(struct bpf_map *map, void *key,
- void *value, u64 map_flags)
+static long bpf_fd_sk_storage_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 map_flags)
{
struct bpf_local_storage_data *sdata;
struct socket *sock;
@@ -114,7 +114,7 @@ static int bpf_fd_sk_storage_update_elem(struct bpf_map *map, void *key,
return err;
}
-static int bpf_fd_sk_storage_delete_elem(struct bpf_map *map, void *key)
+static long bpf_fd_sk_storage_delete_elem(struct bpf_map *map, void *key)
{
struct socket *sock;
int fd, err;
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 9b854e236d23..7c189c2e2fbf 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -437,7 +437,7 @@ static void sock_map_delete_from_link(struct bpf_map *map, struct sock *sk,
__sock_map_delete(stab, sk, link_raw);
}
-static int sock_map_delete_elem(struct bpf_map *map, void *key)
+static long sock_map_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_stab *stab = container_of(map, struct bpf_stab, map);
u32 i = *(u32 *)key;
@@ -587,8 +587,8 @@ int sock_map_update_elem_sys(struct bpf_map *map, void *key, void *value,
return ret;
}
-static int sock_map_update_elem(struct bpf_map *map, void *key,
- void *value, u64 flags)
+static long sock_map_update_elem(struct bpf_map *map, void *key,
+ void *value, u64 flags)
{
struct sock *sk = (struct sock *)value;
int ret;
@@ -925,7 +925,7 @@ static void sock_hash_delete_from_link(struct bpf_map *map, struct sock *sk,
raw_spin_unlock_bh(&bucket->lock);
}
-static int sock_hash_delete_elem(struct bpf_map *map, void *key)
+static long sock_hash_delete_elem(struct bpf_map *map, void *key)
{
struct bpf_shtab *htab = container_of(map, struct bpf_shtab, map);
u32 hash, key_size = map->key_size;
diff --git a/net/xdp/xskmap.c b/net/xdp/xskmap.c
index 0c38d7175922..0f1a768ff119 100644
--- a/net/xdp/xskmap.c
+++ b/net/xdp/xskmap.c
@@ -162,8 +162,8 @@ static void *xsk_map_lookup_elem_sys_only(struct bpf_map *map, void *key)
return ERR_PTR(-EOPNOTSUPP);
}
-static int xsk_map_update_elem(struct bpf_map *map, void *key, void *value,
- u64 map_flags)
+static long xsk_map_update_elem(struct bpf_map *map, void *key, void *value,
+ u64 map_flags)
{
struct xsk_map *m = container_of(map, struct xsk_map, map);
struct xdp_sock __rcu **map_entry;
@@ -223,7 +223,7 @@ static int xsk_map_update_elem(struct bpf_map *map, void *key, void *value,
return err;
}
-static int xsk_map_delete_elem(struct bpf_map *map, void *key)
+static long xsk_map_delete_elem(struct bpf_map *map, void *key)
{
struct xsk_map *m = container_of(map, struct xsk_map, map);
struct xdp_sock __rcu **map_entry;
--
2.39.2
