Re: [PATCH v1 06/14] serial: 8250_bcm7271: Switch to use uart_read_port_properties()

Andy Shevchenko
2024-02-23T15:02:44Z

On Fri, Feb 23, 2024 at 12:14:38PM +0800, kernel test robot wrote:
> Hi Andy,
>
> kernel test robot noticed the following build warnings:

> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202402231238.AWqLyIoM-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>

> In file included from arch/hexagon/include/asm/io.h:328:
> include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
> 547 | val = __raw_readb(PCI_IOBASE + addr);
> | ~~~~~~~~~~ ^

Okay, the above is well known issue with hexagon arch, not related to the series.

> >> drivers/tty/serial/8250/8250_bcm7271.c:938:22: warning: unused variable 'np' [-Wunused-variable]
> 938 | struct device_node *np = pdev->dev.of_node;
> | ^~

This one is a good catch! Will be fixed in a new version.

--
With Best Regards,
Andy Shevchenko