git: 8d55837dc133 - main - qeueue.h: Add {SLIST, STAILQ, LIST, TAILQ}_END()
Alex Richardson
arichardson at FreeBSD.org
Mon Jan 25 15:11:16 UTC 2021
The branch main has been updated by arichardson:
URL: https://cgit.FreeBSD.org/src/commit/?id=8d55837dc1331a5cdacad539b1788ab1070159b4
commit 8d55837dc1331a5cdacad539b1788ab1070159b4
Author: Alex Richardson <arichardson at FreeBSD.org>
AuthorDate: 2021-01-25 14:11:45 +0000
Commit: Alex Richardson <arichardson at FreeBSD.org>
CommitDate: 2021-01-25 15:09:35 +0000
qeueue.h: Add {SLIST,STAILQ,LIST,TAILQ}_END()
We provide these for compat with other queue.h headers since some software
assumes it exists (e.g. the libevent contrib code), but we are not
encouraging their use (NULL should be used instead).
This fixes the following warning (which should arguable be an error since
it results in a function call to an undefined function):
.../contrib/libevent/buffer.c:495:16: warning: implicit declaration of function 'LIST_END' is invalid in C99 [-Wimplicit-function-declaration]
cbent != LIST_END(&buffer->callbacks);
^
.../contrib/libevent/buffer.c:495:13: warning: comparison between pointer and integer ('struct evbuffer_cb_entry *' and 'int') [-Wpointer-integer-compare]
cbent != LIST_END(&buffer->callbacks);
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Reviewed By: jhb
Differential Revision: https://reviews.freebsd.org/D27151
---
sys/fs/nfs/nfsport.h | 2 ++
sys/sys/queue.h | 10 ++++++++++
2 files changed, 12 insertions(+)
diff --git a/sys/fs/nfs/nfsport.h b/sys/fs/nfs/nfsport.h
index 7d1c3b1c8cea..9f2789f57bec 100644
--- a/sys/fs/nfs/nfsport.h
+++ b/sys/fs/nfs/nfsport.h
@@ -880,9 +880,11 @@ int nfsmsleep(void *, void *, int, const char *, struct timespec *);
/*
* Some queue.h files don't have these dfined in them.
*/
+#ifndef LIST_END
#define LIST_END(head) NULL
#define SLIST_END(head) NULL
#define TAILQ_END(head) NULL
+#endif
/*
* This must be defined to be a global variable that increments once
diff --git a/sys/sys/queue.h b/sys/sys/queue.h
index 14d55905dfc0..25091ec815f1 100644
--- a/sys/sys/queue.h
+++ b/sys/sys/queue.h
@@ -91,6 +91,7 @@
* _CLASS_ENTRY + + + +
* _INIT + + + +
* _EMPTY + + + +
+ * _END + + + +
* _FIRST + + + +
* _NEXT + + + +
* _PREV - + - +
@@ -305,6 +306,8 @@ struct { \
SLIST_FIRST(head2) = swap_first; \
} while (0)
+#define SLIST_END(head) NULL
+
/*
* Singly-linked Tail queue declarations.
*/
@@ -437,6 +440,9 @@ struct { \
(head2)->stqh_last = &STAILQ_FIRST(head2); \
} while (0)
+#define STAILQ_END(head) NULL
+
+
/*
* List declarations.
*/
@@ -611,6 +617,8 @@ struct { \
swap_tmp->field.le_prev = &LIST_FIRST((head2)); \
} while (0)
+#define LIST_END(head) NULL
+
/*
* Tail queue declarations.
*/
@@ -867,4 +875,6 @@ struct { \
(head2)->tqh_last = &(head2)->tqh_first; \
} while (0)
+#define TAILQ_END(head) NULL
+
#endif /* !_SYS_QUEUE_H_ */
More information about the dev-commits-src-main
mailing list