[PATCH v7 bpf-next 4/9] bpf: use prog->jited_len in bpf_prog_ksym_set_addr()

[Song Liu <song@xxxxxxxxxx>]

Using prog->jited_len is simpler and more accurate than current
estimation (header + header->size).

Signed-off-by: Song Liu <song@xxxxxxxxxx>
---
 kernel/bpf/core.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 69f348d9f816..7cbcf6bfbb52 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -537,13 +537,10 @@ long bpf_jit_limit_max __read_mostly;
 static void
 bpf_prog_ksym_set_addr(struct bpf_prog *prog)
 {
-	const struct bpf_binary_header *hdr = bpf_jit_binary_hdr(prog);
-	unsigned long addr = (unsigned long)hdr;
-
 	WARN_ON_ONCE(!bpf_prog_ebpf_jited(prog));
 
 	prog->aux->ksym.start = (unsigned long) prog->bpf_func;
-	prog->aux->ksym.end   = addr + hdr->size;
+	prog->aux->ksym.end   = prog->aux->ksym.start + prog->jited_len;
 }
 
 static void
-- 
2.30.2