dmaengine: ti-cppi5: 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-rc1/process/deprecated.html#zero-length-and-one-element-arrays

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

diff --git a/include/linux/dma/ti-cppi5.h b/include/linux/dma/ti-cppi5.h
index 5896441..efa2f03 100644 (file)
--- a/include/linux/dma/ti-cppi5.h
+++ b/include/linux/dma/ti-cppi5.h
@@ -47,7 +47,7 @@ struct cppi5_host_desc_t {
        u32 buf_info1;
        u32 org_buf_len;
        u64 org_buf_ptr;
-       u32 epib[0];
+       u32 epib[];
 } __packed;
 
 #define CPPI5_DESC_MIN_ALIGN                   (16U)
@@ -139,7 +139,7 @@ struct cppi5_desc_epib_t {
  */
 struct cppi5_monolithic_desc_t {
        struct cppi5_desc_hdr_t hdr;
-       u32 epib[0];
+       u32 epib[];
 };
 
 #define CPPI5_INFO2_MDESC_DATA_OFFSET_SHIFT    (18U)