[xlnx:xlnx_rebase_v5.4 19/1697] drivers/mtd/nand/raw/arasan_nand.c:365:16: warning: right shift count >= width of type
kernel test robot
lkp at intel.com
Tue Jan 12 12:37:26 EST 2021
tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.4
head: 629150468791671b5fde21363e643e87c5815b17
commit: 1dea215e98f470c4fabe230cb5dcb648e3301fb9 [19/1697] mtd: rawnand: Add support for ARASAN NAND controller
config: m68k-randconfig-r013-20210112 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/Xilinx/linux-xlnx/commit/1dea215e98f470c4fabe230cb5dcb648e3301fb9
git remote add xlnx https://github.com/Xilinx/linux-xlnx
git fetch --no-tags xlnx xlnx_rebase_v5.4
git checkout 1dea215e98f470c4fabe230cb5dcb648e3301fb9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/err.h:5,
from include/linux/clk.h:12,
from drivers/mtd/nand/raw/arasan_nand.c:10:
include/linux/scatterlist.h: In function 'sg_set_buf':
arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra]
33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
| ^~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~
include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~~~~~~~~~~
In file included from arch/m68k/include/asm/io.h:6,
from arch/m68k/include/asm/pgtable_no.h:14,
from arch/m68k/include/asm/pgtable.h:3,
from include/linux/mm.h:99,
from include/linux/scatterlist.h:8,
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/m68k/include/asm/io_no.h:25:77: note: in definition of macro '__raw_writel'
25 | #define __raw_writel(b, addr) (void)((*(volatile unsigned int *) (addr)) = (b))
| ^
drivers/mtd/nand/raw/arasan_nand.c:365:2: note: in expansion of macro 'writel'
365 | writel((paddr >> 32), nfc->base + DMA_ADDR1_OFST);
| ^~~~~~
In file included from arch/m68k/include/asm/page.h:49,
from arch/m68k/include/asm/thread_info.h:6,
from include/linux/thread_info.h:38,
from arch/m68k/include/asm/current.h:16,
from include/linux/mutex.h:14,
from include/linux/notifier.h:14,
from include/linux/clk.h:14,
from drivers/mtd/nand/raw/arasan_nand.c:10:
drivers/mtd/nand/raw/arasan_nand.c: In function 'anfc_read_data_op':
arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra]
33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
| ^~
drivers/mtd/nand/raw/arasan_nand.c:420:6: note: in expansion of macro 'virt_addr_valid'
420 | if (virt_addr_valid(buf))
| ^~~~~~~~~~~~~~~
drivers/mtd/nand/raw/arasan_nand.c: In function 'anfc_write_data_op':
arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra]
33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
| ^~
drivers/mtd/nand/raw/arasan_nand.c:431:6: note: in expansion of macro 'virt_addr_valid'
431 | if (virt_addr_valid(buf))
| ^~~~~~~~~~~~~~~
vim +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@lists.01.org
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