I'm getting a new warning with gcc-7:
isci/remote_node_context.c: In function 'sci_remote_node_context_destruct':
isci/remote_node_context.c:69:16: error: array subscript is above array bounds [-Werror=array-bounds]
This is odd, since we clearly cover all values for enum
scis_sds_remote_node_context_states here. Anyway, checking
for an array overflow can't harm and it makes the warning
go away.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/scsi/isci/remote_node_context.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c
index 30bd80052e03..e3f2a5359d71 100644
--- a/drivers/scsi/isci/remote_node_context.c
+++ b/drivers/scsi/isci/remote_node_context.c
@@ -66,6 +66,9 @@ const char *rnc_state_name(enum scis_sds_remote_node_context_states state)
{
static const char * const strings[] = RNC_STATES;
+ if (state >= ARRAY_SIZE(strings))
+ return "UNKNOWN";
+
return strings[state];
}
#undef C
--
2.9.0
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