* [jfern:coresched 23/38] include/linux/entry-kvm.h:29:62: warning: 'struct kvm_vcpu' declared inside parameter list will not be visible outside of this definition or declaration
@ 2020-11-11 8:56 kernel test robot
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From: kernel test robot @ 2020-11-11 8:56 UTC (permalink / raw)
To: kbuild-all
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git coresched
head: 8d250115a6b0e2316cb268213dccfeae35cc61ab
commit: 52c14d9ef1bc109c3ad803273e136d994cd60004 [23/38] entry/idle: Enter and exit kernel protection during idle entry and exit
config: i386-randconfig-a016-20201111 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git/commit/?id=52c14d9ef1bc109c3ad803273e136d994cd60004
git remote add jfern https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git
git fetch --no-tags jfern coresched
git checkout 52c14d9ef1bc109c3ad803273e136d994cd60004
# save the attached .config to linux build tree
make W=1 ARCH=i386
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 >>):
In file included from include/linux/entry-kvm.h:5,
from kernel/entry/kvm.c:3:
include/linux/entry-common.h:468:1: error: version control conflict marker in file
468 | >>>>>>> 1e7589ad08c6 (entry/idle: Enter and exit kernel protection during idle entry and exit)
| ^~~~~~~
include/linux/entry-common.h:468:9: error: invalid suffix "ad08c6" on floating constant
468 | >>>>>>> 1e7589ad08c6 (entry/idle: Enter and exit kernel protection during idle entry and exit)
| ^~~~~~~~~~~~
In file included from kernel/entry/kvm.c:3:
>> include/linux/entry-kvm.h:29:62: warning: 'struct kvm_vcpu' declared inside parameter list will not be visible outside of this definition or declaration
29 | static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
| ^~~~~~~~
include/linux/entry-kvm.h:33:62: warning: 'struct kvm_vcpu' declared inside parameter list will not be visible outside of this definition or declaration
33 | static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
| ^~~~~~~~
include/linux/entry-kvm.h:33:19: error: conflicting types for 'arch_xfer_to_guest_mode_handle_work'
33 | static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/entry-kvm.h:29:19: note: previous declaration of 'arch_xfer_to_guest_mode_handle_work' was here
29 | static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/entry-kvm.h:47:43: warning: 'struct kvm_vcpu' declared inside parameter list will not be visible outside of this definition or declaration
47 | int xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu);
| ^~~~~~~~
kernel/entry/kvm.c: In function 'xfer_to_guest_mode_work':
kernel/entry/kvm.c:25:45: error: passing argument 1 of 'arch_xfer_to_guest_mode_handle_work' from incompatible pointer type [-Werror=incompatible-pointer-types]
25 | ret = arch_xfer_to_guest_mode_handle_work(vcpu, ti_work);
| ^~~~
| |
| struct kvm_vcpu *
In file included from kernel/entry/kvm.c:3:
include/linux/entry-kvm.h:33:72: note: expected 'struct kvm_vcpu *' but argument is of type 'struct kvm_vcpu *'
33 | static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
| ~~~~~~~~~~~~~~~~~^~~~
kernel/entry/kvm.c: At top level:
kernel/entry/kvm.c:34:5: error: conflicting types for 'xfer_to_guest_mode_handle_work'
34 | int xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from kernel/entry/kvm.c:3:
include/linux/entry-kvm.h:47:5: note: previous declaration of 'xfer_to_guest_mode_handle_work' was here
47 | int xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/linkage.h:7,
from include/linux/kernel.h:8,
from arch/x86/include/asm/percpu.h:27,
from arch/x86/include/asm/current.h:6,
from include/linux/sched.h:12,
from include/linux/tracehook.h:46,
from include/linux/entry-common.h:5,
from include/linux/entry-kvm.h:5,
from kernel/entry/kvm.c:3:
kernel/entry/kvm.c:52:19: error: conflicting types for 'xfer_to_guest_mode_handle_work'
52 | EXPORT_SYMBOL_GPL(xfer_to_guest_mode_handle_work);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL'
98 | extern typeof(sym) sym; \
| ^~~
include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL'
155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
| ^~~~~~~~~~~~~~~
include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL'
159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl")
| ^~~~~~~~~~~~~~
kernel/entry/kvm.c:52:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
52 | EXPORT_SYMBOL_GPL(xfer_to_guest_mode_handle_work);
| ^~~~~~~~~~~~~~~~~
In file included from kernel/entry/kvm.c:3:
include/linux/entry-kvm.h:47:5: note: previous declaration of 'xfer_to_guest_mode_handle_work' was here
47 | int xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +29 include/linux/entry-kvm.h
935ace2fb5cc49a Thomas Gleixner 2020-07-22 19
935ace2fb5cc49a Thomas Gleixner 2020-07-22 20 /**
935ace2fb5cc49a Thomas Gleixner 2020-07-22 21 * arch_xfer_to_guest_mode_handle_work - Architecture specific xfer to guest
935ace2fb5cc49a Thomas Gleixner 2020-07-22 22 * mode work handling function.
935ace2fb5cc49a Thomas Gleixner 2020-07-22 23 * @vcpu: Pointer to current's VCPU data
935ace2fb5cc49a Thomas Gleixner 2020-07-22 24 * @ti_work: Cached TIF flags gathered in xfer_to_guest_mode_handle_work()
935ace2fb5cc49a Thomas Gleixner 2020-07-22 25 *
935ace2fb5cc49a Thomas Gleixner 2020-07-22 26 * Invoked from xfer_to_guest_mode_handle_work(). Defaults to NOOP. Can be
935ace2fb5cc49a Thomas Gleixner 2020-07-22 27 * replaced by architecture specific code.
935ace2fb5cc49a Thomas Gleixner 2020-07-22 28 */
935ace2fb5cc49a Thomas Gleixner 2020-07-22 @29 static inline int arch_xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu,
935ace2fb5cc49a Thomas Gleixner 2020-07-22 30 unsigned long ti_work);
935ace2fb5cc49a Thomas Gleixner 2020-07-22 31
:::::: The code at line 29 was first introduced by commit
:::::: 935ace2fb5cc49ae88bd1f1735ddc51cdc2ebfb3 entry: Provide infrastructure for work before transitioning to guest mode
:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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