[asahilinux:sven/20210829 1/13] arch/arm64/kernel/traps.c:905:6: warning: no previous prototype for function 'print_apple_serror_regs'

From: kernel test robot
Date: Sun Aug 29 2021 - 18:31:23 EST

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tree: https://github.com/AsahiLinux/linux sven/20210829
head: 6db7d21b57b368ce4c62e201bded63d43b5940f9
commit: 53db7b68cf24a6e61acc47a721b9273af115172a [1/13] HACK/DONOTMERGE: print M1 SError sys regs
config: arm64-randconfig-r031-20210830 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 510e106fa8635e7f9c51c896180b971de6309b2f)
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
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/AsahiLinux/linux/commit/53db7b68cf24a6e61acc47a721b9273af115172a
git remote add asahilinux https://github.com/AsahiLinux/linux
git fetch --no-tags asahilinux sven/20210829
git checkout 53db7b68cf24a6e61acc47a721b9273af115172a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

^~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:822:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_PC_ALIGN] = "PC Alignment",
^~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:823:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_DABT_LOW] = "DABT (lower EL)",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:824:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_DABT_CUR] = "DABT (current EL)",
^~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:825:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_SP_ALIGN] = "SP Alignment",
^~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:826:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_FP_EXC32] = "FP (AArch32)",
^~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:827:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_FP_EXC64] = "FP (AArch64)",
^~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:828:25: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_SERROR] = "SError",
^~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:829:29: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_BREAKPT_LOW] = "Breakpoint (lower EL)",
^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:830:29: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_BREAKPT_CUR] = "Breakpoint (current EL)",
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:831:29: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_SOFTSTP_LOW] = "Software Step (lower EL)",
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:832:29: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_SOFTSTP_CUR] = "Software Step (current EL)",
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:833:29: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_WATCHPT_LOW] = "Watchpoint (lower EL)",
^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:834:29: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_WATCHPT_CUR] = "Watchpoint (current EL)",
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:835:25: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_BKPT32] = "BKPT (AArch32)",
^~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:836:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_VECTOR32] = "Vector catch (AArch32)",
^~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:837:24: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ESR_ELx_EC_BRK64] = "BRK (AArch64)",
^~~~~~~~~~~~~~~
arch/arm64/kernel/traps.c:796:28: note: previous initialization is here
[0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC",
^~~~~~~~~~~~~~~~~
>> arch/arm64/kernel/traps.c:905:6: warning: no previous prototype for function 'print_apple_serror_regs' [-Wmissing-prototypes]
void print_apple_serror_regs(void)
^
arch/arm64/kernel/traps.c:905:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void print_apple_serror_regs(void)
^
static
arch/arm64/kernel/traps.c:980:5: warning: no previous prototype for function 'is_valid_bugaddr' [-Wmissing-prototypes]
int is_valid_bugaddr(unsigned long addr)
^
arch/arm64/kernel/traps.c:980:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int is_valid_bugaddr(unsigned long addr)
^
static
arch/arm64/kernel/traps.c:1082:12: warning: no previous prototype for function 'early_brk64' [-Wmissing-prototypes]
int __init early_brk64(unsigned long addr, unsigned int esr,
^
arch/arm64/kernel/traps.c:1082:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __init early_brk64(unsigned long addr, unsigned int esr,
^
static
44 warnings generated.

vim +/print_apple_serror_regs +905 arch/arm64/kernel/traps.c

904
> 905 void print_apple_serror_regs(void)
906 {
907 printk("L2C_ERR_STS: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_L2C_ERR_STS));
908 printk("L2C_ERR_ADR: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_L2C_ERR_ADR));
909 printk("L2C_ERR_INF: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_L2C_ERR_INF));
910
911 if (!(read_sysreg_s(SYS_MPIDR_EL1) & (1 << 16))) {
912 printk("E_LSU_ERR_STS: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_E_LSU_ERR_STS));
913 printk("E_FED_ERR_STS: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_E_FED_ERR_STS));
914 printk("E_MMU_ERR_STS: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_E_MMU_ERR_STS));
915 } else {
916 printk("LSU_ERR_STS: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_LSU_ERR_STS));
917 printk("FED_ERR_STS: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_FED_ERR_STS));
918 printk("MMU_ERR_STS: 0x%llx\n", read_sysreg_s(SYS_IMP_APL_MMU_ERR_STS));
919 }
920 }
921

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

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Next message: Matthew Hagan: "[PATCH v2 1/5] ARM: dts: NSP: Add bcm958623hr board name to dts"
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