Merge tag 'bpf-next-6.12-struct-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf 'struct fd' updates from Alexei Starovoitov:
 "This includes struct_fd BPF changes from Al and Andrii"

* tag 'bpf-next-6.12-struct-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
  bpf: convert bpf_token_create() to CLASS(fd, ...)
  security,bpf: constify struct path in bpf_token_create() LSM hook
  bpf: more trivial fdget() conversions
  bpf: trivial conversions for fdget()
  bpf: switch maps to CLASS(fd, ...)
  bpf: factor out fetching bpf_map from FD and adding it to used_maps list
  bpf: switch fdget_raw() uses to CLASS(fd_raw, ...)
  bpf: convert __bpf_prog_get() to CLASS(fd, ...)

1 files changed, 3 insertions, 8 deletions

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 83bbf935c562..75e4fe83c509 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -7711,21 +7711,16 @@ int btf_new_fd(const union bpf_attr *attr, bpfptr_t uattr, u32 uattr_size)
 struct btf *btf_get_by_fd(int fd)
 {
 	struct btf *btf;
-	struct fd f;
+	CLASS(fd, f)(fd);
 
-	f = fdget(fd);
-
-	if (!fd_file(f))
+	if (fd_empty(f))
 		return ERR_PTR(-EBADF);
 
-	if (fd_file(f)->f_op != &btf_fops) {
-		fdput(f);
+	if (fd_file(f)->f_op != &btf_fops)
 		return ERR_PTR(-EINVAL);
-	}
 
 	btf = fd_file(f)->private_data;
 	refcount_inc(&btf->refcnt);
-	fdput(f);
 
 	return btf;
 }