can: mcp251xfd: silence clang warning

This patch fixes the following clang warning, by marking the functions
as maybe unused. gcc doesn't complain about unused inline functions.

| drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c:564:1: warning: unused function 'mcp251xfd_chip_set_mode_nowait' [-Wunused-function]
| mcp251xfd_chip_set_mode_nowait(const struct mcp251xfd_priv *priv,
| ^
| 1 warning generated.

Link: https://lore.kernel.org/r/20210514153741.1958041-3-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
index e0ae00e..47c3f40 100644 (file)
--- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
+++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
@@ -560,7 +560,7 @@ mcp251xfd_chip_set_mode(const struct mcp251xfd_priv *priv,
        return __mcp251xfd_chip_set_mode(priv, mode_req, false);
 }
 
-static inline int
+static inline int __maybe_unused
 mcp251xfd_chip_set_mode_nowait(const struct mcp251xfd_priv *priv,
                               const u8 mode_req)
 {