Re: [PATCH v3 10/15] x86/paravirt: simplify paravirt macros

kernel test robot
2020-12-17T16:47:22Z

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Hi Juergen,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.10]
[cannot apply to xen-tip/linux-next tip/x86/core tip/x86/asm next-20201217]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git accefff5b547a9a1d959c7e76ad539bf2480e78b
config: x86_64-randconfig-a016-20201217 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45)
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 x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://github.com/0day-ci/linux/commit/0d13a33e925f799d8487bcc597e2dc016d1fdd16
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
git checkout 0d13a33e925f799d8487bcc597e2dc016d1fdd16
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64

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 arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
>> arch/x86/include/asm/paravirt.h:44:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL0(mmu.flush_tlb_user);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 'PVOP_VCALL0'
__PVOP_VCALL(op)
^~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:49:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL0(mmu.flush_tlb_kernel);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 'PVOP_VCALL0'
__PVOP_VCALL(op)
^~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:54:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:515:2: note: expanded from macro 'PVOP_VCALL1'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:60:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL2(mmu.flush_tlb_others, cpumask, info);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:526:2: note: expanded from macro 'PVOP_VCALL2'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:65:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL2(mmu.tlb_remove_table, tlb, table);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:526:2: note: expanded from macro 'PVOP_VCALL2'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))
--
In file included from drivers/iio/accel/bma180.c:17:
In file included from include/linux/i2c.h:13:
In file included from include/linux/acpi.h:35:
In file included from include/acpi/acpi_io.h:5:
In file included from include/linux/io.h:13:
In file included from arch/x86/include/asm/io.h:244:
>> arch/x86/include/asm/paravirt.h:44:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL0(mmu.flush_tlb_user);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 'PVOP_VCALL0'
__PVOP_VCALL(op)
^~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from drivers/iio/accel/bma180.c:17:
In file included from include/linux/i2c.h:13:
In file included from include/linux/acpi.h:35:
In file included from include/acpi/acpi_io.h:5:
In file included from include/linux/io.h:13:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:49:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL0(mmu.flush_tlb_kernel);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 'PVOP_VCALL0'
__PVOP_VCALL(op)
^~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from drivers/iio/accel/bma180.c:17:
In file included from include/linux/i2c.h:13:
In file included from include/linux/acpi.h:35:
In file included from include/acpi/acpi_io.h:5:
In file included from include/linux/io.h:13:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:54:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:515:2: note: expanded from macro 'PVOP_VCALL1'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from drivers/iio/accel/bma180.c:17:
In file included from include/linux/i2c.h:13:
In file included from include/linux/acpi.h:35:
In file included from include/acpi/acpi_io.h:5:
In file included from include/linux/io.h:13:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:60:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL2(mmu.flush_tlb_others, cpumask, info);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:526:2: note: expanded from macro 'PVOP_VCALL2'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from drivers/iio/accel/bma180.c:17:
In file included from include/linux/i2c.h:13:
In file included from include/linux/acpi.h:35:
In file included from include/acpi/acpi_io.h:5:
In file included from include/linux/io.h:13:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:65:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL2(mmu.tlb_remove_table, tlb, table);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:526:2: note: expanded from macro 'PVOP_VCALL2'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from drivers/iio/accel/bma180.c:17:
In file included from include/linux/i2c.h:13:
--
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
>> arch/x86/include/asm/paravirt.h:44:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL0(mmu.flush_tlb_user);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 'PVOP_VCALL0'
__PVOP_VCALL(op)
^~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:49:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL0(mmu.flush_tlb_kernel);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 'PVOP_VCALL0'
__PVOP_VCALL(op)
^~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:54:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:515:2: note: expanded from macro 'PVOP_VCALL1'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:60:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL2(mmu.flush_tlb_others, cpumask, info);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:526:2: note: expanded from macro 'PVOP_VCALL2'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro '__PVOP_VCALL'
(void)____PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro '____PVOP_CALL'
PVOP_CALL_ARGS; \
^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 'PVOP_CALL_ARGS'
__edx = __edx, __ecx = __ecx, __eax = __eax;
~~~~~ ^~~~~
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:22:
In file included from include/linux/writeback.h:14:
In file included from include/linux/blk-cgroup.h:23:
In file included from include/linux/blkdev.h:26:
In file included from include/linux/scatterlist.h:9:
In file included from arch/x86/include/asm/io.h:244:
arch/x86/include/asm/paravirt.h:65:2: warning: variable '__eax' is uninitialized when used within its own initialization [-Wuninitialized]
PVOP_VCALL2(mmu.tlb_remove_table, tlb, table);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:526:2: note: expanded from macro 'PVOP_VCALL2'
__PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))

vim +/__eax +44 arch/x86/include/asm/paravirt.h

fdc0269e8958a1e Juergen Gross 2018-08-28 35
2faf153bb7346b7 Thomas Gleixner 2020-04-21 36 void native_flush_tlb_local(void);
cd30d26cf307b45 Thomas Gleixner 2020-04-21 37 void native_flush_tlb_global(void);
127ac915c8e1c11 Thomas Gleixner 2020-04-21 38 void native_flush_tlb_one_user(unsigned long addr);
29def599b38bb8a Thomas Gleixner 2020-04-21 39 void native_flush_tlb_others(const struct cpumask *cpumask,
29def599b38bb8a Thomas Gleixner 2020-04-21 40 const struct flush_tlb_info *info);
2faf153bb7346b7 Thomas Gleixner 2020-04-21 41
2faf153bb7346b7 Thomas Gleixner 2020-04-21 42 static inline void __flush_tlb_local(void)
fdc0269e8958a1e Juergen Gross 2018-08-28 43 {
fdc0269e8958a1e Juergen Gross 2018-08-28 @44 PVOP_VCALL0(mmu.flush_tlb_user);
fdc0269e8958a1e Juergen Gross 2018-08-28 45 }
fdc0269e8958a1e Juergen Gross 2018-08-28 46

---
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