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Message-ID: <202310150352.KyKovpbT-lkp@intel.com>
Date: Sun, 15 Oct 2023 03:24:45 +0800
From: kernel test robot <lkp@...el.com>
To: Sergio Paracuellos <sergio.paracuellos@...il.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: drivers/clk/ralink/clk-mtmips.c:821:34: warning: unused variable
'mtmips_of_match'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 70f8c6f8f8800d970b10676cceae42bba51a4899
commit: 6f3b15586eef736831abe6a14f2a6906bc0dc074 clk: ralink: add clock and reset driver for MTMIPS SoCs
date: 4 months ago
config: hexagon-randconfig-r016-20230817 (https://download.01.org/0day-ci/archive/20231015/202310150352.KyKovpbT-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231015/202310150352.KyKovpbT-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/202310150352.KyKovpbT-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/clk/ralink/clk-mtmips.c:11:
In file included from include/linux/regmap.h:20:
In file included from include/linux/iopoll.h:14:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
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]
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'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from drivers/clk/ralink/clk-mtmips.c:11:
In file included from include/linux/regmap.h:20:
In file included from include/linux/iopoll.h:14:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
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'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from drivers/clk/ralink/clk-mtmips.c:11:
In file included from include/linux/regmap.h:20:
In file included from include/linux/iopoll.h:14:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__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]
__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]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
drivers/clk/ralink/clk-mtmips.c:309:9: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
return ret;
^~~
drivers/clk/ralink/clk-mtmips.c:285:9: note: initialize the variable 'ret' to silence this warning
int ret, i;
^
= 0
drivers/clk/ralink/clk-mtmips.c:359:9: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
return ret;
^~~
drivers/clk/ralink/clk-mtmips.c:335:9: note: initialize the variable 'ret' to silence this warning
int ret, i;
^
= 0
>> drivers/clk/ralink/clk-mtmips.c:821:34: warning: unused variable 'mtmips_of_match' [-Wunused-const-variable]
static const struct of_device_id mtmips_of_match[] = {
^
9 warnings generated.
vim +/mtmips_of_match +821 drivers/clk/ralink/clk-mtmips.c
820
> 821 static const struct of_device_id mtmips_of_match[] = {
822 {
823 .compatible = "ralink,rt2880-sysc",
824 .data = &rt2880_clk_data,
825 },
826 {
827 .compatible = "ralink,rt3050-sysc",
828 .data = &rt305x_clk_data,
829 },
830 {
831 .compatible = "ralink,rt3052-sysc",
832 .data = &rt305x_clk_data,
833 },
834 {
835 .compatible = "ralink,rt3352-sysc",
836 .data = &rt3352_clk_data,
837 },
838 {
839 .compatible = "ralink,rt3883-sysc",
840 .data = &rt3883_clk_data,
841 },
842 {
843 .compatible = "ralink,rt5350-sysc",
844 .data = &rt5350_clk_data,
845 },
846 {
847 .compatible = "ralink,mt7620-sysc",
848 .data = &mt7620_clk_data,
849 },
850 {
851 .compatible = "ralink,mt7628-sysc",
852 .data = &mt76x8_clk_data,
853 },
854 {
855 .compatible = "ralink,mt7688-sysc",
856 .data = &mt76x8_clk_data,
857 },
858 {}
859 };
860
--
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