On 18/06/2019 16:50, Greg Kroah-Hartman wrote: > It is fine to ignore the return value (and encouraged), so need to cast I assume you mean 'no need' here. > away the return value, you will not get a build warning at all. > > Cc: Linus Walleij <linus.walleij@xxxxxxxxxx> > Cc: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx> > Cc: Thierry Reding <thierry.reding@xxxxxxxxx> > Cc: Jonathan Hunter <jonathanh@xxxxxxxxxx> > Cc: linux-gpio@xxxxxxxxxxxxxxx > Cc: linux-tegra@xxxxxxxxxxxxxxx > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > --- > drivers/gpio/gpio-tegra.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c > index 6d9b6906b9d0..a54bba1bda6c 100644 > --- a/drivers/gpio/gpio-tegra.c > +++ b/drivers/gpio/gpio-tegra.c > @@ -550,8 +550,8 @@ DEFINE_SHOW_ATTRIBUTE(tegra_dbg_gpio); > > static void tegra_gpio_debuginit(struct tegra_gpio_info *tgi) > { > - (void) debugfs_create_file("tegra_gpio", 0444, > - NULL, tgi, &tegra_dbg_gpio_fops); > + debugfs_create_file("tegra_gpio", 0444, NULL, tgi, > + &tegra_dbg_gpio_fops); > } > > #else Looks like we can get rid of this entire function and just call debugfs_create_file directly to simplify the code even more. We can handle that. Acked-by: Jon Hunter <jonathanh@xxxxxxxxxx> Thanks Jon -- nvpublic