| Message ID | 20200715150632.409077-13-lee.jones@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Rid W=1 warnings in SPI | expand |
Hi Lee, On 15/07/2020 16:06:30+0100, Lee Jones wrote: > It's there so why not use it. > Is that the correct resolution? Isn't the proper thing to do simply removing at91_usart_spi_dt_ids as the only way it will ever be probed is through drivers/mfd/at91-usart.c and I would think matching the driver name is enough. > Fixes the following W=1 kernel build warning(s): > > drivers/spi/spi-at91-usart.c:684:34: warning: ‘at91_usart_spi_dt_ids’ defined but not used [-Wunused-const-variable=] > 684 | static const struct of_device_id at91_usart_spi_dt_ids[] = { > | ^~~~~~~~~~~~~~~~~~~~~ > > Cc: Radu Pirea <radu_nicolae.pirea@upb.ro> > Cc: Nicolas Ferre <nicolas.ferre@microchip.com> > Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> > Cc: Ludovic Desroches <ludovic.desroches@microchip.com> > Signed-off-by: Lee Jones <lee.jones@linaro.org> > --- > drivers/spi/spi-at91-usart.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c > index 88033422a42ae..d47a20be43ccd 100644 > --- a/drivers/spi/spi-at91-usart.c > +++ b/drivers/spi/spi-at91-usart.c > @@ -692,6 +692,7 @@ static struct platform_driver at91_usart_spi_driver = { > .driver = { > .name = "at91_usart_spi", > .pm = &at91_usart_spi_pm_ops, > + .of_match_table = at91_usart_spi_dt_ids, > }, > .probe = at91_usart_spi_probe, > .remove = at91_usart_spi_remove, > -- > 2.25.1 > -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
On Wed, 15 Jul 2020, Alexandre Belloni wrote: > Hi Lee, > > On 15/07/2020 16:06:30+0100, Lee Jones wrote: > > It's there so why not use it. > > > > Is that the correct resolution? Isn't the proper thing to do simply > removing at91_usart_spi_dt_ids as the only way it will ever be probed is > through drivers/mfd/at91-usart.c and I would think matching the driver > name is enough. I'm 50/50 on this. Happy with whatever the authors/maintainers decide most appropriate. > > Fixes the following W=1 kernel build warning(s): > > > > drivers/spi/spi-at91-usart.c:684:34: warning: ‘at91_usart_spi_dt_ids’ defined but not used [-Wunused-const-variable=] > > 684 | static const struct of_device_id at91_usart_spi_dt_ids[] = { > > | ^~~~~~~~~~~~~~~~~~~~~ > > > > Cc: Radu Pirea <radu_nicolae.pirea@upb.ro> > > Cc: Nicolas Ferre <nicolas.ferre@microchip.com> > > Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> > > Cc: Ludovic Desroches <ludovic.desroches@microchip.com> > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > --- > > drivers/spi/spi-at91-usart.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c > > index 88033422a42ae..d47a20be43ccd 100644 > > --- a/drivers/spi/spi-at91-usart.c > > +++ b/drivers/spi/spi-at91-usart.c > > @@ -692,6 +692,7 @@ static struct platform_driver at91_usart_spi_driver = { > > .driver = { > > .name = "at91_usart_spi", > > .pm = &at91_usart_spi_pm_ops, > > + .of_match_table = at91_usart_spi_dt_ids, > > }, > > .probe = at91_usart_spi_probe, > > .remove = at91_usart_spi_remove, > -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
On 16/07/2020 08:56:06+0100, Lee Jones wrote: > On Wed, 15 Jul 2020, Alexandre Belloni wrote: > > > Hi Lee, > > > > On 15/07/2020 16:06:30+0100, Lee Jones wrote: > > > It's there so why not use it. > > > > > > > Is that the correct resolution? Isn't the proper thing to do simply > > removing at91_usart_spi_dt_ids as the only way it will ever be probed is > > through drivers/mfd/at91-usart.c and I would think matching the driver > > name is enough. > > I'm 50/50 on this. > > Happy with whatever the authors/maintainers decide most appropriate. > Seeing that the compatible string is not documented or used by any dts, I would go for the removal. > > > Fixes the following W=1 kernel build warning(s): > > > > > > drivers/spi/spi-at91-usart.c:684:34: warning: ‘at91_usart_spi_dt_ids’ defined but not used [-Wunused-const-variable=] > > > 684 | static const struct of_device_id at91_usart_spi_dt_ids[] = { > > > | ^~~~~~~~~~~~~~~~~~~~~ > > > > > > Cc: Radu Pirea <radu_nicolae.pirea@upb.ro> > > > Cc: Nicolas Ferre <nicolas.ferre@microchip.com> > > > Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> > > > Cc: Ludovic Desroches <ludovic.desroches@microchip.com> > > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > > --- > > > drivers/spi/spi-at91-usart.c | 1 + > > > 1 file changed, 1 insertion(+) > > > > > > diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c > > > index 88033422a42ae..d47a20be43ccd 100644 > > > --- a/drivers/spi/spi-at91-usart.c > > > +++ b/drivers/spi/spi-at91-usart.c > > > @@ -692,6 +692,7 @@ static struct platform_driver at91_usart_spi_driver = { > > > .driver = { > > > .name = "at91_usart_spi", > > > .pm = &at91_usart_spi_pm_ops, > > > + .of_match_table = at91_usart_spi_dt_ids, > > > }, > > > .probe = at91_usart_spi_probe, > > > .remove = at91_usart_spi_remove, > > > > -- > Lee Jones [李琼斯] > Senior Technical Lead - Developer Services > Linaro.org │ Open source software for Arm SoCs > Follow Linaro: Facebook | Twitter | Blog -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c index 88033422a42ae..d47a20be43ccd 100644 --- a/drivers/spi/spi-at91-usart.c +++ b/drivers/spi/spi-at91-usart.c @@ -692,6 +692,7 @@ static struct platform_driver at91_usart_spi_driver = { .driver = { .name = "at91_usart_spi", .pm = &at91_usart_spi_pm_ops, + .of_match_table = at91_usart_spi_dt_ids, }, .probe = at91_usart_spi_probe, .remove = at91_usart_spi_remove,
It's there so why not use it. Fixes the following W=1 kernel build warning(s): drivers/spi/spi-at91-usart.c:684:34: warning: ‘at91_usart_spi_dt_ids’ defined but not used [-Wunused-const-variable=] 684 | static const struct of_device_id at91_usart_spi_dt_ids[] = { | ^~~~~~~~~~~~~~~~~~~~~ Cc: Radu Pirea <radu_nicolae.pirea@upb.ro> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/spi/spi-at91-usart.c | 1 + 1 file changed, 1 insertion(+) -- 2.25.1