From: Su Hui <suhui@nfschina.com>
Date: Wed, 31 May 2023 04:32:51 +0000 (+0800)
Subject: bpf/tests: Use struct_size()
X-Git-Tag: v6.6.7~2536^2~23^2~43
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0d2da4b595d03009db7dfb5ebf01c547b89b0ad8;p=platform%2Fkernel%2Flinux-starfive.git

bpf/tests: Use struct_size()

Use struct_size() instead of hand writing it. This is less verbose and
more informative.

Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20230531043251.989312-1-suhui@nfschina.com
---

diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index ade9ac6..fa08334 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -15056,8 +15056,7 @@ static __init int prepare_tail_call_tests(struct bpf_array **pprogs)
 	int which, err;
 
 	/* Allocate the table of programs to be used for tall calls */
-	progs = kzalloc(sizeof(*progs) + (ntests + 1) * sizeof(progs->ptrs[0]),
-			GFP_KERNEL);
+	progs = kzalloc(struct_size(progs, ptrs, ntests + 1), GFP_KERNEL);
 	if (!progs)
 		goto out_nomem;