bpf: fix sysctl.c warning
When CONFIG_BPF_SYSCALL or CONFIG_SYSCTL is disabled, we get a warning about an unused function: kernel/sysctl.c:3331:12: error: 'proc_dointvec_minmax_bpf_stats' defined but not used [-Werror=unused-function] static int proc_dointvec_minmax_bpf_stats(struct ctl_table *table, int write, The CONFIG_BPF_SYSCALL check was already handled, but the SYSCTL check is needed on top. Fixes: 492ecee8 ("bpf: enable program stats") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Reviewed-by: NKees Cook <keescook@chromium.org> Reviewed-by: NChristian Brauner <christian@brauner.io> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
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