comedi: ni_atmio: avoid warning for unused device_ids[] table

When the driver is built-in, it produces a W=1 warning:

drivers/comedi/drivers/ni_atmio.c:209:35: error: 'device_ids' defined but not used [-Werror=unused-const-variable=]
  209 | static const struct pnp_device_id device_ids[] = {

The actual probe() function has a different way of identifying
the hardware, so just mark this one as __maybe_unused so it
can be dropped when built-in.

Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20250409122314.2848028-8-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/comedi/drivers/ni_atmio.c b/drivers/comedi/drivers/ni_atmio.c
index 330ae1c5880079eaf4f3f6b8914f56b03b0675c5..b4e759e5703fd3b4f9fcdff7c106c727c7603bff 100644 (file)
--- a/drivers/comedi/drivers/ni_atmio.c
+++ b/drivers/comedi/drivers/ni_atmio.c
@@ -215,7 +215,7 @@ static const int ni_irqpin[] = {
 
 #include "ni_mio_common.c"
 
-static const struct pnp_device_id device_ids[] = {
+static const struct pnp_device_id __maybe_unused device_ids[] = {
        {.id = "NIC1900", .driver_data = 0},
        {.id = "NIC2400", .driver_data = 0},
        {.id = "NIC2500", .driver_data = 0},