* [peterz-queue:locking/task_work 2/32] arch/arm64/include/asm/hardirq.h:50:23: error: '__cnt' undeclared; did you mean '___cnt'?
@ 2020-02-25 1:21 kbuild test robot
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From: kbuild test robot @ 2020-02-25 1:21 UTC (permalink / raw)
To: kbuild-all
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/task_work
head: 2899263c702a7af75558cabcc456675e79e8f62c
commit: c2bf6aaf3b9fa7ef6c871b16f2a8a61bc0f0b955 [2/32] hardirq/nmi: Allow nested nmi_enter()
config: arm64-alldefconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout c2bf6aaf3b9fa7ef6c871b16f2a8a61bc0f0b955
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=arm64
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All error/warnings (new ones prefixed by >>):
In file included from include/linux/hardirq.h:9:0,
from include/linux/interrupt.h:11,
from include/linux/kernel_stat.h:9,
from arch/arm64/kernel/irq.c:13:
arch/arm64/kernel/irq.c: In function 'asm_nmi_enter':
>> arch/arm64/include/asm/hardirq.h:50:23: error: '__cnt' undeclared (first use in this function); did you mean '___cnt'?
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
>> arch/arm64/kernel/irq.c:85:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
arch/arm64/include/asm/hardirq.h:50:23: note: each undeclared identifier is reported only once for each function it appears in
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
>> arch/arm64/kernel/irq.c:85:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
--
In file included from include/linux/hardirq.h:9:0,
from arch/arm64/kernel/traps.c:17:
arch/arm64/kernel/traps.c: In function 'do_serror':
>> arch/arm64/include/asm/hardirq.h:50:23: error: '__cnt' undeclared (first use in this function); did you mean '___cnt'?
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
>> arch/arm64/kernel/traps.c:909:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
arch/arm64/include/asm/hardirq.h:50:23: note: each undeclared identifier is reported only once for each function it appears in
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
>> arch/arm64/kernel/traps.c:909:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
--
In file included from include/linux/hardirq.h:9:0,
from include/linux/interrupt.h:11,
from drivers/irqchip/irq-gic-v3.c:13:
drivers/irqchip/irq-gic-v3.c: In function 'gic_handle_nmi':
>> arch/arm64/include/asm/hardirq.h:50:23: error: '__cnt' undeclared (first use in this function); did you mean '___cnt'?
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
>> drivers/irqchip/irq-gic-v3.c:609:3: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
arch/arm64/include/asm/hardirq.h:50:23: note: each undeclared identifier is reported only once for each function it appears in
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
>> drivers/irqchip/irq-gic-v3.c:609:3: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
--
In file included from include/linux/hardirq.h:9:0,
from include/linux/interrupt.h:11,
from include/linux/kernel_stat.h:9,
from arch/arm64//kernel/irq.c:13:
arch/arm64//kernel/irq.c: In function 'asm_nmi_enter':
>> arch/arm64/include/asm/hardirq.h:50:23: error: '__cnt' undeclared (first use in this function); did you mean '___cnt'?
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
arch/arm64//kernel/irq.c:85:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
arch/arm64/include/asm/hardirq.h:50:23: note: each undeclared identifier is reported only once for each function it appears in
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
arch/arm64//kernel/irq.c:85:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
--
In file included from include/linux/hardirq.h:9:0,
from arch/arm64//kernel/traps.c:17:
arch/arm64//kernel/traps.c: In function 'do_serror':
>> arch/arm64/include/asm/hardirq.h:50:23: error: '__cnt' undeclared (first use in this function); did you mean '___cnt'?
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
arch/arm64//kernel/traps.c:909:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
arch/arm64/include/asm/hardirq.h:50:23: note: each undeclared identifier is reported only once for each function it appears in
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
arch/arm64//kernel/traps.c:909:2: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
--
In file included from include/linux/hardirq.h:9:0,
from include/linux/interrupt.h:11,
from drivers//irqchip/irq-gic-v3.c:13:
drivers//irqchip/irq-gic-v3.c: In function 'gic_handle_nmi':
>> arch/arm64/include/asm/hardirq.h:50:23: error: '__cnt' undeclared (first use in this function); did you mean '___cnt'?
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
drivers//irqchip/irq-gic-v3.c:609:3: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
arch/arm64/include/asm/hardirq.h:50:23: note: each undeclared identifier is reported only once for each function it appears in
if (!(___cnt & 1) && __cnt) { \
^
>> include/linux/hardirq.h:73:3: note: in expansion of macro 'arch_nmi_enter'
arch_nmi_enter(); \
^~~~~~~~~~~~~~
drivers//irqchip/irq-gic-v3.c:609:3: note: in expansion of macro 'nmi_enter'
nmi_enter();
^~~~~~~~~
vim +50 arch/arm64/include/asm/hardirq.h
39
40 #define arch_nmi_enter() \
41 do { \
42 struct nmi_ctx *___ctx; \
43 unsigned int ___cnt; \
44 \
45 if (!is_kernel_in_hyp_mode() || in_nmi()) \
46 break; \
47 \
48 ___ctx = this_cpu_ptr(&nmi_contexts); \
49 ___cnt = ___ctx->cnt; \
> 50 if (!(___cnt & 1) && __cnt) { \
51 ___ctx->cnt += 2; \
52 break; \
53 } \
54 \
55 ___ctx->cnt |= 1; \
56 barrier(); \
57 ___ctx->hcr = read_sysreg(hcr_el2); \
58 if (!(___ctx->hcr & HCR_TGE)) { \
59 write_sysreg(___ctx->hcr | HCR_TGE, hcr_el2); \
60 isb(); \
61 } \
62 barrier(); \
63 if (!(___cnt & 1)) \
64 ___ctx->cnt++; \
65 } while (0)
66
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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