[PATCH] s390: replace zero-length array with flexible-array member

From: cgel . zte
Date: Fri Apr 01 2022 - 03:56:51 EST


From: Lv Ruyi <lv.ruyi@xxxxxxxxxx>

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/v5.16/process/deprecated.html#zero-length-and-one-element-arrays

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Lv Ruyi <lv.ruyi@xxxxxxxxxx>
---
drivers/s390/char/sclp_cmd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 15971997cfe2..3c87057436d5 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -241,7 +241,7 @@ struct attach_storage_sccb {
u16 :16;
u16 assigned;
u32 :32;
- u32 entries[0];
+ u32 entries[];
} __packed;

static int sclp_attach_storage(u8 id)
--
2.25.1