Re: [PATCH] bpf: Fix build in minimal configurations, again

Daniel Borkmann
2019-12-11T13:00:36Z

On Tue, Dec 10, 2019 at 09:35:46PM +0100, Arnd Bergmann wrote:
> 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>

Applied, thanks!