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| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2020-10-27 13:50:19 -0500 |
|---|---|---|
| committer | Gustavo A. R. Silva <gustavoars@kernel.org> | 2020-10-30 16:57:42 -0500 |
| commit | a38283da05d321fa1fce38ea3cf41c9f1dbd1f21 (patch) | |
| tree | 73c6bdf0064bdeb1cf509a52a9619b0be923b96b | |
| parent | 7206d58a3a538c80b36305d1904de313cf47ef4c (diff) | |
| download | lwn-a38283da05d321fa1fce38ea3cf41c9f1dbd1f21.tar.gz lwn-a38283da05d321fa1fce38ea3cf41c9f1dbd1f21.zip | |
printk: ringbuffer: Replace zero-length array with flexible-array member
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.9/process/deprecated.html#zero-length-and-one-element-arrays
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
| -rw-r--r-- | kernel/printk/printk_ringbuffer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/printk/printk_ringbuffer.c b/kernel/printk/printk_ringbuffer.c index 24a960a89aa8..6b1525685277 100644 --- a/kernel/printk/printk_ringbuffer.c +++ b/kernel/printk/printk_ringbuffer.c @@ -345,7 +345,7 @@ DESC_ID((id) - DESCS_COUNT(desc_ring)) */ struct prb_data_block { unsigned long id; - char data[0]; + char data[]; }; /* |