Re: [PATCH 2/2] irqchip/gic-v3: Support pseudo-NMIs when SCR_EL3.FIQ == 0

From: kernel test robot
Date: Thu Jun 25 2020 - 21:52:01 EST

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In reply to: Alexandru Elisei: "[PATCH 2/2] irqchip/gic-v3: Support pseudo-NMIs when SCR_EL3.FIQ == 0"
Next in thread: Alexandru Elisei: "Re: [PATCH 2/2] irqchip/gic-v3: Support pseudo-NMIs when SCR_EL3.FIQ == 0"
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Hi Alexandru,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on tip/irq/core v5.8-rc2 next-20200625]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Alexandru-Elisei/irqchip-gic-v3-Support-pseudo-NMIs-when-SCR_EL3-FIQ-0/20200625-230144
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm64-randconfig-r025-20200624 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 8911a35180c6777188fefe0954a2451a2b91deaf)
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
# 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 <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

In file included from arch/arm64/kernel/asm-offsets.c:10:
In file included from include/linux/arm_sdei.h:8:
In file included from include/acpi/ghes.h:5:
In file included from include/acpi/apei.h:9:
In file included from include/linux/acpi.h:13:
In file included from include/linux/irqdomain.h:35:
In file included from include/linux/of.h:17:
In file included from include/linux/kobject.h:20:
In file included from include/linux/sysfs.h:16:
In file included from include/linux/kernfs.h:13:
In file included from include/linux/idr.h:15:
In file included from include/linux/radix-tree.h:15:
In file included from include/linux/rcupdate.h:26:
In file included from include/linux/irqflags.h:16:
>> arch/arm64/include/asm/irqflags.h:45:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqon)
^
arch/arm64/include/asm/irqflags.h:42:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
arch/arm64/include/asm/irqflags.h:67:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqoff)
^
arch/arm64/include/asm/irqflags.h:64:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
2 warnings generated.
--
In file included from drivers/power/supply/ltc2941-battery-gauge.c:12:
In file included from include/linux/module.h:13:
In file included from include/linux/stat.h:6:
In file included from arch/arm64/include/asm/stat.h:12:
In file included from include/linux/time.h:6:
In file included from include/linux/seqlock.h:36:
In file included from include/linux/spinlock.h:54:
In file included from include/linux/irqflags.h:16:
>> arch/arm64/include/asm/irqflags.h:45:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqon)
^
arch/arm64/include/asm/irqflags.h:42:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
arch/arm64/include/asm/irqflags.h:67:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqoff)
^
arch/arm64/include/asm/irqflags.h:64:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
drivers/power/supply/ltc2941-battery-gauge.c:476:13: warning: cast to smaller integer type 'enum ltc294x_id' from 'const void *' [-Wvoid-pointer-to-enum-cast]
info->id = (enum ltc294x_id)of_device_get_match_data(&client->dev);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 warnings generated.
--
In file included from drivers/power/supply/goldfish_battery.c:11:
In file included from include/linux/module.h:13:
In file included from include/linux/stat.h:6:
In file included from arch/arm64/include/asm/stat.h:12:
In file included from include/linux/time.h:6:
In file included from include/linux/seqlock.h:36:
In file included from include/linux/spinlock.h:54:
In file included from include/linux/irqflags.h:16:
>> arch/arm64/include/asm/irqflags.h:45:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqon)
^
arch/arm64/include/asm/irqflags.h:42:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
arch/arm64/include/asm/irqflags.h:67:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqoff)
^
arch/arm64/include/asm/irqflags.h:64:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
drivers/power/supply/goldfish_battery.c:269:36: warning: unused variable 'goldfish_battery_acpi_match' [-Wunused-const-variable]
static const struct acpi_device_id goldfish_battery_acpi_match[] = {
^
3 warnings generated.
--
In file included from drivers/power/supply/bq25890_charger.c:8:
In file included from include/linux/module.h:13:
In file included from include/linux/stat.h:6:
In file included from arch/arm64/include/asm/stat.h:12:
In file included from include/linux/time.h:6:
In file included from include/linux/seqlock.h:36:
In file included from include/linux/spinlock.h:54:
In file included from include/linux/irqflags.h:16:
>> arch/arm64/include/asm/irqflags.h:45:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqon)
^
arch/arm64/include/asm/irqflags.h:42:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
arch/arm64/include/asm/irqflags.h:67:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqoff)
^
arch/arm64/include/asm/irqflags.h:64:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
drivers/power/supply/bq25890_charger.c:1060:36: warning: unused variable 'bq25890_acpi_match' [-Wunused-const-variable]
static const struct acpi_device_id bq25890_acpi_match[] = {
^
3 warnings generated.
--
In file included from drivers/power/reset/vexpress-poweroff.c:8:
In file included from include/linux/notifier.h:15:
In file included from include/linux/rwsem.h:16:
In file included from include/linux/spinlock.h:54:
In file included from include/linux/irqflags.h:16:
>> arch/arm64/include/asm/irqflags.h:45:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqon)
^
arch/arm64/include/asm/irqflags.h:42:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
arch/arm64/include/asm/irqflags.h:67:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqoff)
^
arch/arm64/include/asm/irqflags.h:64:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
drivers/power/reset/vexpress-poweroff.c:124:10: warning: cast to smaller integer type 'enum vexpress_reset_func' from 'const void *' [-Wvoid-pointer-to-enum-cast]
switch ((enum vexpress_reset_func)match->data) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 warnings generated.
--
In file included from arch/arm64/kernel/asm-offsets.c:10:
In file included from include/linux/arm_sdei.h:8:
In file included from include/acpi/ghes.h:5:
In file included from include/acpi/apei.h:9:
In file included from include/linux/acpi.h:13:
In file included from include/linux/irqdomain.h:35:
In file included from include/linux/of.h:17:
In file included from include/linux/kobject.h:20:
In file included from include/linux/sysfs.h:16:
In file included from include/linux/kernfs.h:13:
In file included from include/linux/idr.h:15:
In file included from include/linux/radix-tree.h:15:
In file included from include/linux/rcupdate.h:26:
In file included from include/linux/irqflags.h:16:
>> arch/arm64/include/asm/irqflags.h:45:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqon)
^
arch/arm64/include/asm/irqflags.h:42:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
arch/arm64/include/asm/irqflags.h:67:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
: "r" (pmr_irqoff)
^
arch/arm64/include/asm/irqflags.h:64:29: note: use constraint modifier "w"
__msr_s(SYS_ICC_PMR_EL1, "%0"),
^
2 warnings generated.
arch/arm64/kernel/vdso/vgettimeofday.c:9:5: warning: no previous prototype for function '__kernel_clock_gettime' [-Wmissing-prototypes]
int __kernel_clock_gettime(clockid_t clock,
^
arch/arm64/kernel/vdso/vgettimeofday.c:9:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __kernel_clock_gettime(clockid_t clock,
^
static
arch/arm64/kernel/vdso/vgettimeofday.c:15:5: warning: no previous prototype for function '__kernel_gettimeofday' [-Wmissing-prototypes]
int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
^
arch/arm64/kernel/vdso/vgettimeofday.c:15:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
^
static
arch/arm64/kernel/vdso/vgettimeofday.c:21:5: warning: no previous prototype for function '__kernel_clock_getres' [-Wmissing-prototypes]
int __kernel_clock_getres(clockid_t clock_id,
^
arch/arm64/kernel/vdso/vgettimeofday.c:21:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __kernel_clock_getres(clockid_t clock_id,
^
static
3 warnings generated.

vim +45 arch/arm64/include/asm/irqflags.h

12
13 /*
14 * Aarch64 has flags for masking: Debug, Asynchronous (serror), Interrupts and
15 * FIQ exceptions, in the 'daif' register. We mask and unmask them in 'dai'
16 * order:
17 * Masking debug exceptions causes all other exceptions to be masked too/
18 * Masking SError masks irq, but not debug exceptions. Masking irqs has no
19 * side effects for other flags. Keeping to this order makes it easier for
20 * entry.S to know which exceptions should be unmasked.
21 *
22 * FIQ is never expected, but we mask it when we disable debug exceptions, and
23 * unmask it at all other times.
24 */
25
26 /*
27 * CPU interrupt mask handling.
28 */
29 static inline void arch_local_irq_enable(void)
30 {
31 u32 pmr_irqon = GIC_PRIO_IRQON;
32
33 if (system_has_prio_mask_debugging()) {
34 u32 pmr = read_sysreg_s(SYS_ICC_PMR_EL1);
35 u32 pmr_irqoff = gic_prio_irqoff();
36
37 WARN_ON_ONCE(pmr != pmr_irqon && pmr != pmr_irqoff);
38 }
39
40 asm volatile(ALTERNATIVE(
41 "msr daifclr, #2 // arch_local_irq_enable",
42 __msr_s(SYS_ICC_PMR_EL1, "%0"),
43 ARM64_HAS_IRQ_PRIO_MASKING)
44 :
> 45 : "r" (pmr_irqon)
46 : "memory");
47
48 pmr_sync();
49 }
50

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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Next message: Alison Schofield: "Re: [PATCH] Ability to read the MKTME status from userspace (patch v2)"
Previous message: Lu Baolu: "Re: [PATCH v4 12/12] x86/traps: Fix up invalid PASID"
In reply to: Alexandru Elisei: "[PATCH 2/2] irqchip/gic-v3: Support pseudo-NMIs when SCR_EL3.FIQ == 0"
Next in thread: Alexandru Elisei: "Re: [PATCH 2/2] irqchip/gic-v3: Support pseudo-NMIs when SCR_EL3.FIQ == 0"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]