* arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat'
@ 2021-01-14 2:41 kernel test robot
2021-01-14 11:58 ` Mark Rutland
0 siblings, 1 reply; 2+ messages in thread
From: kernel test robot @ 2021-01-14 2:41 UTC (permalink / raw)
To: Mark Rutland; +Cc: kbuild-all, linux-kernel, Will Deacon, Anshuman Khandual
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 65f0d2414b7079556fbbcc070b3d1c9f9587606d
commit: 7a2c094464e39a54f5b9228cd78208cd43872bbd arm64: entry: cleanup el0 svc handler naming
date: 12 months ago
config: arm64-randconfig-r005-20210113 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7a2c094464e39a54f5b9228cd78208cd43872bbd
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 7a2c094464e39a54f5b9228cd78208cd43872bbd
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
arch/arm64/kernel/syscall.c:157:6: warning: no previous prototype for 'do_el0_svc' [-Wmissing-prototypes]
157 | void do_el0_svc(struct pt_regs *regs)
| ^~~~~~~~~~
>> arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat' [-Wmissing-prototypes]
164 | void do_el0_svc_compat(struct pt_regs *regs)
| ^~~~~~~~~~~~~~~~~
vim +/do_el0_svc_compat +164 arch/arm64/kernel/syscall.c
162
163 #ifdef CONFIG_COMPAT
> 164 void do_el0_svc_compat(struct pt_regs *regs)
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat'
2021-01-14 2:41 arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat' kernel test robot
@ 2021-01-14 11:58 ` Mark Rutland
0 siblings, 0 replies; 2+ messages in thread
From: Mark Rutland @ 2021-01-14 11:58 UTC (permalink / raw)
To: kernel test robot
Cc: kbuild-all, linux-kernel, Will Deacon, Anshuman Khandual
On Thu, Jan 14, 2021 at 10:41:59AM +0800, kernel test robot wrote:
> All warnings (new ones prefixed by >>):
>
> arch/arm64/kernel/syscall.c:157:6: warning: no previous prototype for 'do_el0_svc' [-Wmissing-prototypes]
> 157 | void do_el0_svc(struct pt_regs *regs)
> | ^~~~~~~~~~
> >> arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat' [-Wmissing-prototypes]
> 164 | void do_el0_svc_compat(struct pt_regs *regs)
> | ^~~~~~~~~~~~~~~~~
Looks like this is down to syscall.c not including <asm/exception.h>,
since do_el0_svc_compat() has a prototype there.
I'll spin a patch...
Mark.
^ permalink raw reply [flat|nested] 2+ messages in thread
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