Since bpf_log_attr_init() now supports struct bpf_common_attr, pass the
common attributes to it to enable syscall common attributes support for
BPF_BTF_LOAD.
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
---
include/linux/bpf_verifier.h | 3 ++-
kernel/bpf/log.c | 5 +++--
kernel/bpf/syscall.c | 8 +++++---
3 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 28e22a03ac84..732bc4baee1c 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -642,7 +642,8 @@ struct bpf_log_attr {
int bpf_prog_load_log_attr_init(struct bpf_log_attr *log_attr, struct bpf_attrs *attrs,
struct bpf_attrs *attrs_common);
-int bpf_btf_load_log_attr_init(struct bpf_log_attr *log_attr, struct bpf_attrs *attrs);
+int bpf_btf_load_log_attr_init(struct bpf_log_attr *log_attr, struct bpf_attrs *attrs,
+ struct bpf_attrs *attrs_common);
int bpf_log_attr_finalize(struct bpf_log_attr *log_attr, struct bpf_verifier_log *log);
#define BPF_MAX_SUBPROGS 256
diff --git a/kernel/bpf/log.c b/kernel/bpf/log.c
index f1ed24157d71..3cccb0c5e482 100644
--- a/kernel/bpf/log.c
+++ b/kernel/bpf/log.c
@@ -902,13 +902,14 @@ int bpf_prog_load_log_attr_init(struct bpf_log_attr *log_attr, struct bpf_attrs
offsetof(union bpf_attr, log_true_size), attrs_common);
}
-int bpf_btf_load_log_attr_init(struct bpf_log_attr *log_attr, struct bpf_attrs *attrs)
+int bpf_btf_load_log_attr_init(struct bpf_log_attr *log_attr, struct bpf_attrs *attrs,
+ struct bpf_attrs *attrs_common)
{
const union bpf_attr *attr = attrs->attr;
return bpf_log_attr_init(log_attr, attrs, attr->btf_log_buf, attr->btf_log_size,
attr->btf_log_level, offsetof(union bpf_attr, btf_log_true_size),
- NULL);
+ attrs_common);
}
int bpf_log_attr_finalize(struct bpf_log_attr *log_attr, struct bpf_verifier_log *log)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 1ed007511776..040b105ab676 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -5449,7 +5449,8 @@ static int bpf_obj_get_info_by_fd(const union bpf_attr *attr,
#define BPF_BTF_LOAD_LAST_FIELD btf_token_fd
-static int bpf_btf_load(const union bpf_attr *attr, bpfptr_t uattr, __u32 uattr_size)
+static int bpf_btf_load(const union bpf_attr *attr, bpfptr_t uattr, __u32 uattr_size,
+ struct bpf_attrs *attrs_common)
{
struct bpf_token *token = NULL;
struct bpf_log_attr log_attr;
@@ -5463,7 +5464,7 @@ static int bpf_btf_load(const union bpf_attr *attr, bpfptr_t uattr, __u32 uattr_
return -EINVAL;
bpf_attrs_init(&attrs, attr, uattr, uattr_size);
- err = bpf_btf_load_log_attr_init(&log_attr, &attrs);
+ err = bpf_btf_load_log_attr_init(&log_attr, &attrs, attrs_common);
if (err)
return err;
@@ -6297,7 +6298,8 @@ static int __sys_bpf(enum bpf_cmd cmd, bpfptr_t uattr, unsigned int size,
err = bpf_raw_tracepoint_open(&attr);
break;
case BPF_BTF_LOAD:
- err = bpf_btf_load(&attr, uattr, size);
+ bpf_attrs_init(&attrs_common, &attr_common, uattr_common, size_common);
+ err = bpf_btf_load(&attr, uattr, size, &attrs_common);
break;
case BPF_BTF_GET_FD_BY_ID:
err = bpf_btf_get_fd_by_id(&attr);
--
2.52.0