<linux/seccomp.h> needs to include <linux/errno.h>.

<linux/seccomp.h> uses EINVAL so should include <linux/errno.h>.  This
fixes a build error on 64-bit MIPS if CONFIG_SECCOMP is disabled.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index 262a8dc..167c333 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -21,6 +21,8 @@
 
 #else /* CONFIG_SECCOMP */
 
+#include <linux/errno.h>
+
 typedef struct { } seccomp_t;
 
 #define secure_computing(x) do { } while (0)