* [tip: core/rcu] rcu: Fix kfree_rcu() docbook errors
@ 2021-04-11 13:43 tip-bot2 for Mauro Carvalho Chehab
0 siblings, 0 replies; only message in thread
From: tip-bot2 for Mauro Carvalho Chehab @ 2021-04-11 13:43 UTC (permalink / raw)
To: linux-tip-commits
Cc: Uladzislau Rezki (Sony),
Mauro Carvalho Chehab, Paul E. McKenney, x86, linux-kernel
The following commit has been merged into the core/rcu branch of tip:
Commit-ID: e75956bd00cf4246067c6aee7751faf313233435
Gitweb: https://git.kernel.org/tip/e75956bd00cf4246067c6aee7751faf313233435
Author: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
AuthorDate: Thu, 14 Jan 2021 08:22:02 +01:00
Committer: Paul E. McKenney <paulmck@kernel.org>
CommitterDate: Mon, 08 Mar 2021 14:17:35 -08:00
rcu: Fix kfree_rcu() docbook errors
After commit 5130b8fd0690 ("rcu: Introduce kfree_rcu() single-argument macro"),
kernel-doc now emits two warnings:
./include/linux/rcupdate.h:884: warning: Excess function parameter 'ptr' description in 'kfree_rcu'
./include/linux/rcupdate.h:884: warning: Excess function parameter 'rhf' description in 'kfree_rcu'
This commit added some macro magic in order to call two different versions
of kfree_rcu(), the first having just one argument and the second having
two arguments. That makes it difficult to document the kfree_rcu() arguments
in the docboook header.
In order to make clearer that this macro accepts optional arguments,
this commit uses macro concatenation so that this macro changes from:
#define kfree_rcu kvfree_rcu
to:
#define kfree_rcu(ptr, rhf...) kvfree_rcu(ptr, ## rhf)
That not only helps kernel-doc understand the macro arguments, but also
provides a better C definition that makes clearer that the first argument
is mandatory and the second one is optional.
Fixes: 5130b8fd0690 ("rcu: Introduce kfree_rcu() single-argument macro")
Tested-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
include/linux/rcupdate.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index bd04f72..5cc6dea 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -881,7 +881,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
* The BUILD_BUG_ON check must not involve any function calls, hence the
* checks are done in macros here.
*/
-#define kfree_rcu kvfree_rcu
+#define kfree_rcu(ptr, rhf...) kvfree_rcu(ptr, ## rhf)
/**
* kvfree_rcu() - kvfree an object after a grace period.
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2021-04-11 13:48 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-11 13:43 [tip: core/rcu] rcu: Fix kfree_rcu() docbook errors tip-bot2 for Mauro Carvalho Chehab
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).