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| author |   wuchi <wuchi.zero@gmail.com> | 2022-06-19 15:46:41 +0800 |
|---|---|---|
| committer |   akpm <akpm@linux-foundation.org> | 2022-07-17 17:31:37 -0700 |
| commit | 62df90b53e6f332bb69b73621998826c49a17323 (patch) | |
| tree | 2d414545c113543a6a08d5bb6a733c0d0751f1d2 | |
| parent | lib/lru_cache: fix error free handing in lc_create (diff) | |
| download | linux-dev-62df90b53e6f332bb69b73621998826c49a17323.tar.xz linux-dev-62df90b53e6f332bb69b73621998826c49a17323.zip | |
net, lib/once: remove {net_}get_random_once_wait macro
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.
Link: https://lkml.kernel.org/r/20220619074641.40916-1-wuchi.zero@gmail.com
Signed-off-by: wuchi <wuchi.zero@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | include/linux/net.h | 2 | ||||
| -rw-r--r-- | include/linux/once.h | 2 |
2 files changed, 0 insertions, 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 */ |