mei: hw: 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>

diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index 8bac86c4d86b778a4554f5a6c3ecc34a7fe5f587..df2fb9520dd8d03cdbc422243f37f5f737e4ba0a 100644 (file)
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -224,7 +224,7 @@ struct mei_ext_hdr {
        u8 type;
        u8 length;
        u8 ext_payload[2];
-       u8 hdr[0];
+       u8 hdr[];
 };
 
 /**
@@ -238,7 +238,7 @@ struct mei_ext_meta_hdr {
        u8 count;
        u8 size;
        u8 reserved[2];
-       struct mei_ext_hdr hdrs[0];
+       struct mei_ext_hdr hdrs[];
 };
 
 /*
@@ -308,7 +308,7 @@ struct mei_msg_hdr {
        u32 dma_ring:1;
        u32 internal:1;
        u32 msg_complete:1;
-       u32 extension[0];
+       u32 extension[];
 } __packed;
 
 /* The length is up to 9 bits */