2021-06-18 07:58:51

by kernel test robot

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Subject: arch/arm64/kvm/hyp/nvhe/hyp-main.c:18:6: warning: no previous prototype for function 'handle_trap'

Hi Andrew,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: fd0aa1a4567d0f09e1bfe367a950b004f99ac290
commit: 4e3393a969a0bdaae83263918b6824b2d08c3996 KVM: arm64: nVHE: Switch to hyp context for EL2
date: 9 months ago
config: arm64-randconfig-r003-20210618 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4e3393a969a0bdaae83263918b6824b2d08c3996
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4e3393a969a0bdaae83263918b6824b2d08c3996
# 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 <[email protected]>

All warnings (new ones prefixed by >>):

>> arch/arm64/kvm/hyp/nvhe/hyp-main.c:18:6: warning: no previous prototype for function 'handle_trap' [-Wmissing-prototypes]
void handle_trap(struct kvm_cpu_context *host_ctxt)
^
arch/arm64/kvm/hyp/nvhe/hyp-main.c:18:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void handle_trap(struct kvm_cpu_context *host_ctxt)
^
static
1 warning generated.


vim +/handle_trap +18 arch/arm64/kvm/hyp/nvhe/hyp-main.c

14
15 typedef unsigned long (*hypcall_fn_t)
16 (unsigned long, unsigned long, unsigned long);
17
> 18 void handle_trap(struct kvm_cpu_context *host_ctxt)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]


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