On Fri, Jun 04, 2021 at 10:55:05PM +0800, kernel test robot wrote: > Hi Andy, > > I love your patch! Perhaps something to improve: Definitely. Thanks for report! > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > drivers/base/property.c: In function 'device_dma_supported': > >> drivers/base/property.c:875:48: warning: passing argument 1 of 'to_acpi_device_node' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] > 875 | return acpi_dma_supported(to_acpi_device_node(fwnode)); > | ^~~~~~ > In file included from drivers/base/property.c:10: > include/linux/acpi.h:768:77: note: expected 'struct fwnode_handle *' but argument is of type 'const struct fwnode_handle *' > 768 | static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) > | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~ > drivers/base/property.c: In function 'device_get_dma_attr': > drivers/base/property.c:890:48: warning: passing argument 1 of 'to_acpi_device_node' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] > 890 | attr = acpi_get_dma_attr(to_acpi_device_node(fwnode)); > | ^~~~~~ > In file included from drivers/base/property.c:10: > include/linux/acpi.h:768:77: note: expected 'struct fwnode_handle *' but argument is of type 'const struct fwnode_handle *' > 768 | static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) > | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~ -- With Best Regards, Andy Shevchenko