Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH] bpf: Fix build in minimal configurations, again | Date | Tue, 10 Dec 2019 21:35:46 +0100 |
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Building with -Werror showed another failure:
kernel/bpf/btf.c: In function 'btf_get_prog_ctx_type.isra.31': kernel/bpf/btf.c:3508:63: error: array subscript 0 is above array bounds of 'u8[0]' {aka 'unsigned char[0]'} [-Werror=array-bounds] ctx_type = btf_type_member(conv_struct) + bpf_ctx_convert_map[prog_type] * 2;
I don't actually understand why the array is empty, but a similar fix has addressed a related problem, so I suppose we can do the same thing here.
Fixes: ce27709b8162 ("bpf: Fix build in minimal configurations") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- kernel/bpf/btf.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 7d40da240891..ed2075884724 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -3470,6 +3470,7 @@ static u8 bpf_ctx_convert_map[] = { [_id] = __ctx_convert##_id, #include <linux/bpf_types.h> #undef BPF_PROG_TYPE + 0, /* avoid empty array */ }; #undef BPF_MAP_TYPE -- 2.20.0
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