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Subject[PATCH] net, lib/once: Remove {net_}get_random_once_wait macro
Date
DO_ONCE(func, ...) will call func with spinlock which acquired by
spin_lock_irqsave in __do_once_start. But the get_random_once_wait
will sleep in get_random_bytes_wait -> wait_for_random_bytes.

Fortunately, there is no place to use {net_}get_random_once_wait,
so we could remove them simply.

Signed-off-by: wuchi <wuchi.zero@gmail.com>
---
include/linux/net.h | 2 --
include/linux/once.h | 2 --
2 files changed, 4 deletions(-)

diff --git a/include/linux/net.h b/include/linux/net.h
index 12093f4db50c..8613772a1f58 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -303,8 +303,6 @@ do { \

#define net_get_random_once(buf, nbytes) \
get_random_once((buf), (nbytes))
-#define net_get_random_once_wait(buf, nbytes) \
- get_random_once_wait((buf), (nbytes))

/*
* E.g. XFS meta- & log-data is in slab pages, or bcache meta
diff --git a/include/linux/once.h b/include/linux/once.h
index f54523052bbc..b14d8b309d52 100644
--- a/include/linux/once.h
+++ b/include/linux/once.h
@@ -54,7 +54,5 @@ void __do_once_done(bool *done, struct static_key_true *once_key,

#define get_random_once(buf, nbytes) \
DO_ONCE(get_random_bytes, (buf), (nbytes))
-#define get_random_once_wait(buf, nbytes) \
- DO_ONCE(get_random_bytes_wait, (buf), (nbytes)) \

#endif /* _LINUX_ONCE_H */
--
2.20.1
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