diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 8f5bd12ee41b..8f34819e80de 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -3986,6 +3986,12 @@ int do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact) *oact = *k; /* + * Make sure that we never accidentally claim to support SA_UNSUPPORTED, + * e.g. by having an architecture use the bit in their uapi. + */ + BUILD_BUG_ON(UAPI_SA_FLAGS & SA_UNSUPPORTED); + + /* * Clear unknown flag bits in order to allow userspace to detect missing * support for flag bits and to allow the kernel to use non-uapi bits * internally. |