From: kernel test robot <lkp@intel.com>
To: Baoquan He <bhe@redhat.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>,
Niklas Schnelle <schnelle@linux.ibm.com>,
Christoph Hellwig <hch@lst.de>,
"Mike Rapoport (IBM)" <rppt@kernel.org>
Subject: [akpm-mm:mm-unstable 93/173] drivers/clk/clk-fixed-mmio.c:33:2: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations
Date: Thu, 13 Jul 2023 10:57:34 +0800 [thread overview]
Message-ID: <202307131033.JgvCSVz4-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head: e726c62e70a70ae5536caa0aa131c5dce5c6f764
commit: 827057ff3ce7554741d431145c3b93f1a54125fc [93/173] s390: mm: convert to GENERIC_IOREMAP
config: s390-randconfig-r033-20230713 (https://download.01.org/0day-ci/archive/20230713/202307131033.JgvCSVz4-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230713/202307131033.JgvCSVz4-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307131033.JgvCSVz4-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/clk/clk-fixed-mmio.c:13:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
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);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
| ^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
| ^
In file included from drivers/clk/clk-fixed-mmio.c:13:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
| ^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
| ^
In file included from drivers/clk/clk-fixed-mmio.c:13:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
692 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
700 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
708 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
717 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
726 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
735 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> drivers/clk/clk-fixed-mmio.c:33:2: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
33 | iounmap(base);
| ^
arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap'
29 | #define iounmap iounmap
| ^
drivers/clk/clk-fixed-mmio.c:33:2: note: did you mean 'vunmap'?
arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap'
29 | #define iounmap iounmap
| ^
include/linux/vmalloc.h:167:13: note: 'vunmap' declared here
167 | extern void vunmap(const void *addr);
| ^
12 warnings and 1 error generated.
vim +/iounmap +33 drivers/clk/clk-fixed-mmio.c
50cc4caf531abb2 Jan Kotas 2018-12-13 17
50cc4caf531abb2 Jan Kotas 2018-12-13 18 static struct clk_hw *fixed_mmio_clk_setup(struct device_node *node)
50cc4caf531abb2 Jan Kotas 2018-12-13 19 {
50cc4caf531abb2 Jan Kotas 2018-12-13 20 struct clk_hw *clk;
50cc4caf531abb2 Jan Kotas 2018-12-13 21 const char *clk_name = node->name;
50cc4caf531abb2 Jan Kotas 2018-12-13 22 void __iomem *base;
50cc4caf531abb2 Jan Kotas 2018-12-13 23 u32 freq;
50cc4caf531abb2 Jan Kotas 2018-12-13 24 int ret;
50cc4caf531abb2 Jan Kotas 2018-12-13 25
50cc4caf531abb2 Jan Kotas 2018-12-13 26 base = of_iomap(node, 0);
50cc4caf531abb2 Jan Kotas 2018-12-13 27 if (!base) {
50cc4caf531abb2 Jan Kotas 2018-12-13 28 pr_err("%pOFn: failed to map address\n", node);
50cc4caf531abb2 Jan Kotas 2018-12-13 29 return ERR_PTR(-EIO);
50cc4caf531abb2 Jan Kotas 2018-12-13 30 }
50cc4caf531abb2 Jan Kotas 2018-12-13 31
50cc4caf531abb2 Jan Kotas 2018-12-13 32 freq = readl(base);
50cc4caf531abb2 Jan Kotas 2018-12-13 @33 iounmap(base);
50cc4caf531abb2 Jan Kotas 2018-12-13 34 of_property_read_string(node, "clock-output-names", &clk_name);
50cc4caf531abb2 Jan Kotas 2018-12-13 35
50cc4caf531abb2 Jan Kotas 2018-12-13 36 clk = clk_hw_register_fixed_rate(NULL, clk_name, NULL, 0, freq);
50cc4caf531abb2 Jan Kotas 2018-12-13 37 if (IS_ERR(clk)) {
50cc4caf531abb2 Jan Kotas 2018-12-13 38 pr_err("%pOFn: failed to register fixed rate clock\n", node);
50cc4caf531abb2 Jan Kotas 2018-12-13 39 return clk;
50cc4caf531abb2 Jan Kotas 2018-12-13 40 }
50cc4caf531abb2 Jan Kotas 2018-12-13 41
50cc4caf531abb2 Jan Kotas 2018-12-13 42 ret = of_clk_add_hw_provider(node, of_clk_hw_simple_get, clk);
50cc4caf531abb2 Jan Kotas 2018-12-13 43 if (ret) {
50cc4caf531abb2 Jan Kotas 2018-12-13 44 pr_err("%pOFn: failed to add clock provider\n", node);
50cc4caf531abb2 Jan Kotas 2018-12-13 45 clk_hw_unregister(clk);
50cc4caf531abb2 Jan Kotas 2018-12-13 46 clk = ERR_PTR(ret);
50cc4caf531abb2 Jan Kotas 2018-12-13 47 }
50cc4caf531abb2 Jan Kotas 2018-12-13 48
50cc4caf531abb2 Jan Kotas 2018-12-13 49 return clk;
50cc4caf531abb2 Jan Kotas 2018-12-13 50 }
50cc4caf531abb2 Jan Kotas 2018-12-13 51
:::::: The code at line 33 was first introduced by commit
:::::: 50cc4caf531abb2075c6973451fccdaba9f02715 clk: Add Fixed MMIO clock driver
:::::: TO: Jan Kotas <jank@cadence.com>
:::::: CC: Stephen Boyd <sboyd@kernel.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2023-07-13 2:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-13 2:57 kernel test robot [this message]
2023-07-13 16:26 ` [akpm-mm:mm-unstable 93/173] drivers/clk/clk-fixed-mmio.c:33:2: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations Andrew Morton
2023-07-13 23:59 ` Baoquan He
2023-07-14 18:08 ` Andrew Morton
2023-07-17 7:05 ` Liu, Yujie
2023-07-18 0:06 ` bhe
2023-07-18 6:19 ` Liu, Yujie
2023-07-18 8:47 ` bhe
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