In a discussion regarding a potential backward incompatible change [1], Andrii Nakryiko points out that unused bytes of bpf_attr should be zero. Add this bit of information to the bpf(2) man page. [1] https://lore.kernel.org/bpf/CAEf4BzbT4vQBnZzdD00SuPCDkeb4Cm=F6PLUoO_3X93UQD5hbQ@xxxxxxxxxxxxxx/ Signed-off-by: Jakub Sitnicki <jakub@xxxxxxxxxxxxxx> --- man2/bpf.2 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/man2/bpf.2 b/man2/bpf.2 index 2d257eaa6..ee57226ee 100644 --- a/man2/bpf.2 +++ b/man2/bpf.2 @@ -142,7 +142,7 @@ provided via .IR attr , which is a pointer to a union of type .I bpf_attr -(see below). +(see below). The unused fields and padding must be zeroed out before the call. The .I size argument is the size of the union pointed to by -- 2.35.1
