[monstr-microblaze:for-miquel-v5.6 5/12] drivers/mtd/nand/raw/arasan_nand.c:365:2: note: in expansion of macro 'writel'

[monstr-microblaze:for-miquel-v5.6 5/12] drivers/mtd/nand/raw/arasan_nand.c:365:2: note: in expansion of macro 'writel'

[kbuild test robot]

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tree:   git://git.monstr.eu/linux-2.6-microblaze for-miquel-v5.6
head:   d07e8ed65eab21863dddeeaf04b94721e65a3457
commit: e234c78a9823c4744812a972bde26ba9c5f32d1a [5/12] mtd: rawnand: Add support for ARASAN NAND controller
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout e234c78a9823c4744812a972bde26ba9c5f32d1a
        # save the attached .config to linux build tree
        GCC_VERSION=9.3.0 make.cross ARCH=sh 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from include/linux/scatterlist.h:9,
                    from include/linux/dma-mapping.h:11,
                    from drivers/mtd/nand/raw/arasan_nand.c:12:
   drivers/mtd/nand/raw/arasan_nand.c: In function 'anfc_rw_dma_op':
   drivers/mtd/nand/raw/arasan_nand.c:365:16: warning: right shift count >= width of type [-Wshift-count-overflow]
     365 |  writel((paddr >> 32), nfc->base + DMA_ADDR1_OFST);
         |                ^~
   arch/sh/include/asm/io.h:32:77: note: in definition of macro '__raw_writel'
      32 | #define __raw_writel(v,a) (__chk_io_ptr(a), *(volatile u32 __force *)(a) = (v))
         |                                                                             ^
>> arch/sh/include/asm/io.h:47:62: note: in expansion of macro 'ioswabl'
      47 | #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)ioswabl(v),c))
         |                                                              ^~~~~~~
>> arch/sh/include/asm/io.h:57:32: note: in expansion of macro 'writel_relaxed'
      57 | #define writel(v,a)  ({ wmb(); writel_relaxed((v),(a)); })
         |                                ^~~~~~~~~~~~~~
>> drivers/mtd/nand/raw/arasan_nand.c:365:2: note: in expansion of macro 'writel'
     365 |  writel((paddr >> 32), nfc->base + DMA_ADDR1_OFST);
         |  ^~~~~~

vim +/writel +365 drivers/mtd/nand/raw/arasan_nand.c

   337	
   338	static void anfc_rw_dma_op(struct mtd_info *mtd, u8 *buf, int len,
   339				   bool do_read, u32 prog, int pktcount, int pktsize)
   340	{
   341		dma_addr_t paddr;
   342		struct nand_chip *chip = mtd_to_nand(mtd);
   343		struct anfc_nand_controller *nfc = to_anfc(chip->controller);
   344		struct anfc_nand_chip *achip = to_anfc_nand(chip);
   345		u32 eccintr = 0, dir;
   346	
   347		if (pktsize == 0)
   348			pktsize = len;
   349	
   350		anfc_setpktszcnt(nfc, pktsize, pktcount);
   351	
   352		if (!achip->strength)
   353			eccintr = MBIT_ERROR;
   354	
   355		if (do_read)
   356			dir = DMA_FROM_DEVICE;
   357		else
   358			dir = DMA_TO_DEVICE;
   359		paddr = dma_map_single(nfc->dev, buf, len, dir);
   360		if (dma_mapping_error(nfc->dev, paddr)) {
   361			dev_err(nfc->dev, "Read buffer mapping error");
   362			return;
   363		}
   364		writel(paddr, nfc->base + DMA_ADDR0_OFST);
 > 365		writel((paddr >> 32), nfc->base + DMA_ADDR1_OFST);
   366		anfc_enable_intrs(nfc, (XFER_COMPLETE | eccintr));
   367		writel(prog, nfc->base + PROG_OFST);
   368		anfc_wait_for_event(nfc);
   369		dma_unmap_single(nfc->dev, paddr, len, dir);
   370	}
   371	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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