4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Arnd Bergmann <arnd@xxxxxxxx> commit 5cfa2a3c7342bd0b50716c8bb32ee491af43c785 upstream. 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> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/scsi/isci/remote_node_context.c | 3 +++ 1 file changed, 3 insertions(+) --- 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 { static const char * const strings[] = RNC_STATES; + if (state >= ARRAY_SIZE(strings)) + return "UNKNOWN"; + return strings[state]; } #undef C