firmware: google: memconsole: 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://github.com/KSPP/linux/issues/21

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

diff --git a/drivers/firmware/google/memconsole-coreboot.c b/drivers/firmware/google/memconsole-coreboot.c
index fd7f0fbec07e63ba0809e63b1762ed9cb7702f7f..d17e4d6ac9bc42d36803460cdd3f104e34b0746f 100644 (file)
--- a/drivers/firmware/google/memconsole-coreboot.c
+++ b/drivers/firmware/google/memconsole-coreboot.c
@@ -21,7 +21,7 @@
 struct cbmem_cons {
        u32 size_dont_access_after_boot;
        u32 cursor;
-       u8  body[0];
+       u8  body[];
 } __packed;
 
 #define CURSOR_MASK ((1 << 28) - 1)