[PATCH][next] s390/diag: Replace zero-length array with flexible-array member

From: Gustavo A. R. Silva
Date: Thu Apr 06 2023 - 10:28:29 EST


Zero-length arrays are deprecated [1] and have to be replaced by C99
flexible-array members.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy() and help to make progress towards globally enabling
-fstrict-flex-arrays=3 [2]

Link: https://github.com/KSPP/linux/issues/78 [1]
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [2]
Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
---
arch/s390/include/asm/diag.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index 674a939f16ee..902e0330dd91 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -90,7 +90,7 @@ struct diag8c {
u8 num_partitions;
u16 width;
u16 height;
- u8 data[0];
+ u8 data[];
} __packed __aligned(4);

extern int diag8c(struct diag8c *out, struct ccw_dev_id *devno);
--
2.34.1