[PATCH v3 2/2] amba: bus: Enable compile testing

[kernel test robot]

Hi Andy,

kernel test robot noticed the following build errors:

[auto build test ERROR on rafael-pm/linux-next]
[also build test ERROR on robh/for-next soc/for-next linus/master v6.6-rc5 next-20231011]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Andy-Shevchenko/amba-bus-Enable-compile-testing/20231006-225814
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/20231006145732.3419115-2-andriy.shevchenko%40linux.intel.com
patch subject: [PATCH v3 2/2] amba: bus: Enable compile testing
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20231012/202310120929.APpnCpDs-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231012/202310120929.APpnCpDs-lkp@intel.com/reproduce)

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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310120929.APpnCpDs-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/tty/serial/amba-pl011.c: In function 'pl011_sgbuf_init':
>> drivers/tty/serial/amba-pl011.c:380:30: error: implicit declaration of function 'phys_to_page'; did you mean 'pfn_to_page'? [-Werror=implicit-function-declaration]
     380 |         sg_set_page(&sg->sg, phys_to_page(dma_addr),
         |                              ^~~~~~~~~~~~
         |                              pfn_to_page
   drivers/tty/serial/amba-pl011.c:380:30: warning: passing argument 2 of 'sg_set_page' makes pointer from integer without a cast [-Wint-conversion]
     380 |         sg_set_page(&sg->sg, phys_to_page(dma_addr),
         |                              ^~~~~~~~~~~~~~~~~~~~~~
         |                              |
         |                              int
   In file included from include/linux/kfifo.h:42,
                    from include/linux/tty_port.h:5,
                    from include/linux/tty.h:12,
                    from drivers/tty/serial/amba-pl011.c:26:
   include/linux/scatterlist.h:136:69: note: expected 'struct page *' but argument is of type 'int'
     136 | static inline void sg_set_page(struct scatterlist *sg, struct page *page,
         |                                                        ~~~~~~~~~~~~~^~~~
   cc1: some warnings being treated as errors


vim +380 drivers/tty/serial/amba-pl011.c

68b65f7305e54b drivers/serial/amba-pl011.c     Russell King   2010-12-22  368  
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  369  static int pl011_sgbuf_init(struct dma_chan *chan, struct pl011_sgbuf *sg,
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  370  	enum dma_data_direction dir)
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  371  {
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27  372  	dma_addr_t dma_addr;
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27  373  
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27  374  	sg->buf = dma_alloc_coherent(chan->device->dev,
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27  375  		PL011_DMA_BUFFER_SIZE, &dma_addr, GFP_KERNEL);
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  376  	if (!sg->buf)
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  377  		return -ENOMEM;
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  378  
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27  379  	sg_init_table(&sg->sg, 1);
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27 @380  	sg_set_page(&sg->sg, phys_to_page(dma_addr),
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27  381  		PL011_DMA_BUFFER_SIZE, offset_in_page(dma_addr));
cb06ff102e2d79 drivers/tty/serial/amba-pl011.c Chanho Min     2013-03-27  382  	sg_dma_address(&sg->sg) = dma_addr;
c64be9231e0893 drivers/tty/serial/amba-pl011.c Andrew Jackson 2014-11-07  383  	sg_dma_len(&sg->sg) = PL011_DMA_BUFFER_SIZE;
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  384  
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  385  	return 0;
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  386  }
ead76f329f777c drivers/tty/serial/amba-pl011.c Linus Walleij  2011-02-24  387  

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