scsi: bfa: Replace one-element array with flexible-array member

One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct fdmi_attr_s.

Important to mention is that doing a build before/after this patch results
in no binary output differences.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy() and help us make progress towards globally enabling
-fstrict-flex-arrays=3 [1].

Link: https://github.com/KSPP/linux/issues/209
Link: https://github.com/KSPP/linux/issues/79
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/Y3P1rEEBq7HzJygq@work
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/bfa/bfa_fc.h b/drivers/scsi/bfa/bfa_fc.h
index 0314e4b..a12d693 100644 (file)
--- a/drivers/scsi/bfa/bfa_fc.h
+++ b/drivers/scsi/bfa/bfa_fc.h
@@ -1548,7 +1548,7 @@ enum fdmi_port_attribute_type {
 struct fdmi_attr_s {
        __be16        type;
        __be16        len;
-       u8         value[1];
+       u8         value[];
 };
 
 /*