FS-Cache: 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/fscache-cache.h b/include/linux/fscache-cache.h
index ce0b5fb..3f0b19d 100644 (file)
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -46,7 +46,7 @@ struct fscache_cache_tag {
        unsigned long           flags;
 #define FSCACHE_TAG_RESERVED   0               /* T if tag is reserved for a cache */
        atomic_t                usage;
-       char                    name[0];        /* tag name */
+       char                    name[]; /* tag name */
 };
 
 /*