libata: Replace zero-length array with flexible-array

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://github.com/KSPP/linux/issues/21

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

diff --git a/include/linux/libata.h b/include/linux/libata.h
index af83285..8bf5e59 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -609,7 +609,7 @@ struct ata_host {
        struct task_struct      *eh_owner;
 
        struct ata_port         *simplex_claimed;       /* channel owning the DMA */
-       struct ata_port         *ports[0];
+       struct ata_port         *ports[];
 };
 
 struct ata_queued_cmd {