GCC reports the following warning with W=1: drivers/staging/comedi/drivers/tests/ni_routes_test.c:215:45: warning: variable 'olddevroutes' set but not used [-Wunused-but-set-variable] 215 | const struct ni_device_routes *devroutes, *olddevroutes; | ^~~~~~~~~~~~ This variable is not used in function , this commit remove it to fix the warning. Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Qiheng Lin <linqiheng@xxxxxxxxxx> --- .../staging/comedi/drivers/tests/ni_routes_test.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/tests/ni_routes_test.c b/drivers/staging/comedi/drivers/tests/ni_routes_test.c index 48e4a7a9cd14..652362486ff6 100644 --- a/drivers/staging/comedi/drivers/tests/ni_routes_test.c +++ b/drivers/staging/comedi/drivers/tests/ni_routes_test.c @@ -212,7 +212,7 @@ static bool route_set_sources_in_order(const struct ni_device_routes *devroutes) static void test_ni_assign_device_routes(void) { - const struct ni_device_routes *devroutes, *olddevroutes; + const struct ni_device_routes *devroutes; const u8 *table, *oldtable; init_pci_6070e(); @@ -248,7 +248,6 @@ static void test_ni_assign_device_routes(void) RVI(table, B(NI_AI_ConvertClock), B(NI_PFI(2))) == V(NI_PFI_OUTPUT_AI_CONVERT), "pci-6070e finds e-series route_values table\n"); - olddevroutes = devroutes; oldtable = table; init_pci_6220(); ni_assign_device_routes(ni_mseries, pci_6220, NULL,