drivers/iio/light/pa12203001.c:454:36: warning: 'pa12203001_acpi_match' defined but not used

From: kernel test robot
Date: Wed Nov 15 2023 - 19:40:05 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c42d9eeef8e5ba9292eda36fd8e3c11f35ee065c
commit: 8ab6abfca09c1800dccb753775f6ce8ee82f50dd iio: light: Add support for TXC PA12 als and proximity sensor
date: 8 years ago
config: x86_64-buildonly-randconfig-004-20230906 (https://download.01.org/0day-ci/archive/20231116/202311160851.FDA4CDVE-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311160851.FDA4CDVE-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311160851.FDA4CDVE-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

| ^~~~~~~~~~~~
arch/x86/include/asm/paravirt.h:735:9: note: in expansion of macro 'PVOP_VCALL1'
735 | PVOP_VCALL1(pv_lock_ops.kick, cpu);
| ^~~~~~~~~~~
arch/x86/include/asm/paravirt.h: In function 'arch_local_save_flags':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
arch/x86/include/asm/paravirt_types.h:545:33: note: in expansion of macro 'BUG_ON'
545 | #define PVOP_TEST_NULL(op) BUG_ON(op == NULL)
| ^~~~~~
arch/x86/include/asm/paravirt_types.h:555:17: note: in expansion of macro 'PVOP_TEST_NULL'
555 | PVOP_TEST_NULL(op); \
| ^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:587:9: note: in expansion of macro '____PVOP_CALL'
587 | ____PVOP_CALL(rettype, op.func, CLBR_RET_REG, \
| ^~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:624:9: note: in expansion of macro '__PVOP_CALLEESAVE'
624 | __PVOP_CALLEESAVE(rettype, op, "", "")
| ^~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt.h:831:16: note: in expansion of macro 'PVOP_CALLEE0'
831 | return PVOP_CALLEE0(unsigned long, pv_irq_ops.save_fl);
| ^~~~~~~~~~~~
arch/x86/include/asm/paravirt.h: In function 'arch_local_irq_restore':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
arch/x86/include/asm/paravirt_types.h:545:33: note: in expansion of macro 'BUG_ON'
545 | #define PVOP_TEST_NULL(op) BUG_ON(op == NULL)
| ^~~~~~
arch/x86/include/asm/paravirt_types.h:595:17: note: in expansion of macro 'PVOP_TEST_NULL'
595 | PVOP_TEST_NULL(op); \
| ^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:612:9: note: in expansion of macro '____PVOP_VCALL'
612 | ____PVOP_VCALL(op.func, CLBR_RET_REG, \
| ^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:637:9: note: in expansion of macro '__PVOP_VCALLEESAVE'
637 | __PVOP_VCALLEESAVE(op, "", "", PVOP_CALL_ARG1(arg1))
| ^~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt.h:836:9: note: in expansion of macro 'PVOP_VCALLEE1'
836 | PVOP_VCALLEE1(pv_irq_ops.restore_fl, f);
| ^~~~~~~~~~~~~
arch/x86/include/asm/paravirt.h: In function 'arch_local_irq_disable':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
arch/x86/include/asm/paravirt_types.h:545:33: note: in expansion of macro 'BUG_ON'
545 | #define PVOP_TEST_NULL(op) BUG_ON(op == NULL)
| ^~~~~~
arch/x86/include/asm/paravirt_types.h:595:17: note: in expansion of macro 'PVOP_TEST_NULL'
595 | PVOP_TEST_NULL(op); \
| ^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:612:9: note: in expansion of macro '____PVOP_VCALL'
612 | ____PVOP_VCALL(op.func, CLBR_RET_REG, \
| ^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:626:9: note: in expansion of macro '__PVOP_VCALLEESAVE'
626 | __PVOP_VCALLEESAVE(op, "", "")
| ^~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt.h:841:9: note: in expansion of macro 'PVOP_VCALLEE0'
841 | PVOP_VCALLEE0(pv_irq_ops.irq_disable);
| ^~~~~~~~~~~~~
arch/x86/include/asm/paravirt.h: In function 'arch_local_irq_enable':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
arch/x86/include/asm/paravirt_types.h:545:33: note: in expansion of macro 'BUG_ON'
545 | #define PVOP_TEST_NULL(op) BUG_ON(op == NULL)
| ^~~~~~
arch/x86/include/asm/paravirt_types.h:595:17: note: in expansion of macro 'PVOP_TEST_NULL'
595 | PVOP_TEST_NULL(op); \
| ^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:612:9: note: in expansion of macro '____PVOP_VCALL'
612 | ____PVOP_VCALL(op.func, CLBR_RET_REG, \
| ^~~~~~~~~~~~~~
arch/x86/include/asm/paravirt_types.h:626:9: note: in expansion of macro '__PVOP_VCALLEESAVE'
626 | __PVOP_VCALLEESAVE(op, "", "")
| ^~~~~~~~~~~~~~~~~~
arch/x86/include/asm/paravirt.h:846:9: note: in expansion of macro 'PVOP_VCALLEE0'
846 | PVOP_VCALLEE0(pv_irq_ops.irq_enable);
| ^~~~~~~~~~~~~
include/asm-generic/fixmap.h: In function 'virt_to_fix':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/asm-generic/fixmap.h:37:9: note: in expansion of macro 'BUG_ON'
37 | BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
| ^~~~~~
In file included from include/linux/kobject.h:21,
from include/linux/module.h:16:
include/linux/sysfs.h: In function 'sysfs_get_dirent':
include/linux/sysfs.h:496:44: warning: pointer targets in passing argument 2 of 'kernfs_find_and_get' differ in signedness [-Wpointer-sign]
496 | return kernfs_find_and_get(parent, name);
| ^~~~
| |
| const unsigned char *
In file included from include/linux/sysfs.h:15:
include/linux/kernfs.h:424:57: note: expected 'const char *' but argument is of type 'const unsigned char *'
424 | kernfs_find_and_get(struct kernfs_node *kn, const char *name)
| ~~~~~~~~~~~~^~~~
drivers/iio/light/pa12203001.c: At top level:
>> drivers/iio/light/pa12203001.c:454:36: warning: 'pa12203001_acpi_match' defined but not used [-Wunused-const-variable=]
454 | static const struct acpi_device_id pa12203001_acpi_match[] = {
| ^~~~~~~~~~~~~~~~~~~~~


vim +/pa12203001_acpi_match +454 drivers/iio/light/pa12203001.c

453
> 454 static const struct acpi_device_id pa12203001_acpi_match[] = {
455 { "TXCPA122", 0},
456 {}
457 };
458

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