From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> [ Upstream commit 370d988cc529598ebaec6487d4f84c2115dc696b ] In the function softing_startstop() the variable error_reporting is assigned but not used. The code that uses this variable is commented out. Its stated that the functionality is not finally verified. To fix the warning: | drivers/net/can/softing/softing_fw.c:424:9: error: variable 'error_reporting' set but not used [-Werror,-Wunused-but-set-variable] remove the comment, activate the code, but add a "0 &&" to the if expression and rely on the optimizer rather than the preprocessor to remove the code. Link: https://lore.kernel.org/all/20220109103126.1872833-1-mkl@xxxxxxxxxxxxxx Fixes: 03fd3cf5a179 ("can: add driver for Softing card") Cc: Kurt Van Dijck <dev.kurt@xxxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/can/softing/softing_fw.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c index aac58ce6e371a..209eddeb822e5 100644 --- a/drivers/net/can/softing/softing_fw.c +++ b/drivers/net/can/softing/softing_fw.c @@ -576,18 +576,19 @@ int softing_startstop(struct net_device *dev, int up) if (ret < 0) goto failed; } - /* enable_error_frame */ - /* + + /* enable_error_frame + * * Error reporting is switched off at the moment since * the receiving of them is not yet 100% verified * This should be enabled sooner or later - * - if (error_reporting) { + */ + if (0 && error_reporting) { ret = softing_fct_cmd(card, 51, "enable_error_frame"); if (ret < 0) goto failed; } - */ + /* initialize interface */ iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 2]); iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 4]); -- 2.34.1
