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Message-ID: <202412210247.Brq06CHb-lkp@intel.com>
Date: Sat, 21 Dec 2024 02:26:45 +0800
From: kernel test robot <lkp@...el.com>
To: mtk22730 <Cloud.Zhang@...iatek.com>, Mark Brown <broonie@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org,
Project_Global_Chrome_Upstream_Group@...iatek.com,
Cloud Zhang <cloud.zhang@...iatek.com>
Subject: Re: [PATCH] [v1] spi: spi-mtk-nor: Modify the clock architecture of
nor controller
Hi mtk22730,
kernel test robot noticed the following build warnings:
[auto build test WARNING on broonie-spi/for-next]
[also build test WARNING on linus/master v6.13-rc3 next-20241220]
[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/mtk22730/spi-spi-mtk-nor-Modify-the-clock-architecture-of-nor-controller/20241212-172704
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
patch link: https://lore.kernel.org/r/20241212092206.14071-1-Cloud.Zhang%40mediatek.com
patch subject: [PATCH] [v1] spi: spi-mtk-nor: Modify the clock architecture of nor controller
config: um-randconfig-002-20241220 (https://download.01.org/0day-ci/archive/20241221/202412210247.Brq06CHb-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 9daf10ff8f29ba3a88a105aaa9d2379c21b77d35)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241221/202412210247.Brq06CHb-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412210247.Brq06CHb-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/spi/spi-mtk-nor.c:10:
In file included from include/linux/dma-mapping.h:8:
In file included from include/linux/scatterlist.h:8:
In file included from include/linux/mm.h:2223:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from drivers/spi/spi-mtk-nor.c:10:
In file included from include/linux/dma-mapping.h:8:
In file included from include/linux/scatterlist.h:9:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:549:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
549 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:567:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
567 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/spi/spi-mtk-nor.c:10:
In file included from include/linux/dma-mapping.h:8:
In file included from include/linux/scatterlist.h:9:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:585:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/spi/spi-mtk-nor.c:10:
In file included from include/linux/dma-mapping.h:8:
In file included from include/linux/scatterlist.h:9:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:601:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
601 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:616:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
616 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:631:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
631 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:724:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
724 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:737:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
737 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:750:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
750 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:764:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
764 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:778:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
778 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:792:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
792 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> drivers/spi/spi-mtk-nor.c:746:19: warning: result of comparison of constant -22 with expression of type 'u8' (aka 'unsigned char') is always false [-Wtautological-constant-out-of-range-compare]
746 | if (!cnt || (cnt == -EINVAL)) {
| ~~~ ^ ~~~~~~~
14 warnings generated.
vim +746 drivers/spi/spi-mtk-nor.c
737
738 static int mtk_nor_parse_clk(struct device *dev, struct mtk_nor *sp)
739 {
740 struct device_node *np = dev->of_node;
741 int ret;
742 const char *name;
743 u8 cnt, i;
744
745 cnt = of_property_count_strings(np, "clock-names");
> 746 if (!cnt || (cnt == -EINVAL)) {
747 dev_err(dev, "Unable to find clocks\n");
748 ret = -EINVAL;
749 goto out;
750 } else if (cnt < 0) {
751 dev_err(dev, "Count clock strings failed, err %d\n", cnt);
752 ret = cnt;
753 goto out;
754 } else if (cnt > MAX_CLOCK_CNT) {
755 ret = -EINVAL;
756 goto out;
757 }
758
759 sp->clock_cnt = cnt;
760
761 for (i = 0; i < cnt; i++) {
762 ret = of_property_read_string_index(np, "clock-names", i,
763 &name);
764 if (ret) {
765 dev_err(dev, "failed to get clock string\n");
766 return ret;
767 }
768
769 sp->clocks[i].name = name;
770 sp->clocks[i].clki = devm_clk_get(dev, sp->clocks[i].name);
771 if (IS_ERR(sp->clocks[i].clki)) {
772 dev_err(dev, "get clock %s fail\n", sp->clocks[i].name);
773 return PTR_ERR(sp->clocks[i].clki);
774 }
775 }
776
777 out:
778 return ret;
779 }
780
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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