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authorIngo Molnar <[email protected]>2023-10-07 11:32:24 +0200
committerIngo Molnar <[email protected]>2023-10-07 11:32:24 +0200
commit8db30574db25fa20cdcfa03e374edc3f8b8dc301 (patch)
tree0b54686593694b68fb0537197eaa4bec7a44985d /include/uapi/linux
parentd4d6596b43868a1e05fe5b047e73c3aff96444c6 (diff)
parent9e0bc36ab07c550d791bf17feeb479f1dfc42d89 (diff)
Merge branch 'sched/urgent' into sched/core, to pick up fixes and refresh the branch
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/uapi/linux')
-rw-r--r--include/uapi/linux/bpf.h4
-rw-r--r--include/uapi/linux/stddef.h7
2 files changed, 10 insertions, 1 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 8790b3962e4b..0448700890f7 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -1962,7 +1962,9 @@ union bpf_attr {
* performed again, if the helper is used in combination with
* direct packet access.
* Return
- * 0 on success, or a negative error in case of failure.
+ * 0 on success, or a negative error in case of failure. Positive
+ * error indicates a potential drop or congestion in the target
+ * device. The particular positive error codes are not defined.
*
* u64 bpf_get_current_pid_tgid(void)
* Description
diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h
index 7c3fc3980881..5c6c4269f7ef 100644
--- a/include/uapi/linux/stddef.h
+++ b/include/uapi/linux/stddef.h
@@ -29,6 +29,11 @@
struct TAG { MEMBERS } ATTRS NAME; \
}
+#ifdef __cplusplus
+/* sizeof(struct{}) is 1 in C++, not 0, can't use C version of the macro. */
+#define __DECLARE_FLEX_ARRAY(T, member) \
+ T member[0]
+#else
/**
* __DECLARE_FLEX_ARRAY() - Declare a flexible array usable in a union
*
@@ -49,3 +54,5 @@
#ifndef __counted_by
#define __counted_by(m)
#endif
+
+#endif /* _UAPI_LINUX_STDDEF_H */