* Re: [RFC net-next 5/5] eventpoll: Control irq suspension for prefer_busy_poll
[not found] <20240812125717.413108-6-jdamato@fastly.com>
@ 2024-08-13 7:19 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-08-13 7:19 UTC (permalink / raw)
To: Joe Damato; +Cc: llvm, oe-kbuild-all
Hi Joe,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Joe-Damato/net-Add-sysfs-parameter-irq_suspend_timeout/20240812-210114
base: net-next/main
patch link: https://lore.kernel.org/r/20240812125717.413108-6-jdamato%40fastly.com
patch subject: [RFC net-next 5/5] eventpoll: Control irq suspension for prefer_busy_poll
config: s390-allnoconfig (https://download.01.org/0day-ci/archive/20240813/202408131547.4WOQegMQ-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project f86594788ce93b696675c94f54016d27a6c21d18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240813/202408131547.4WOQegMQ-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408131547.4WOQegMQ-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from fs/eventpoll.c:16:
In file included from include/linux/mm.h:2228:
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from fs/eventpoll.c:33:
In file included from arch/s390/include/asm/io.h:93:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
| ^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
| ^
In file included from fs/eventpoll.c:33:
In file included from arch/s390/include/asm/io.h:93:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
| ^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
| ^
In file included from fs/eventpoll.c:33:
In file included from arch/s390/include/asm/io.h:93:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
693 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
701 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
709 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
718 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
727 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
736 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:477:10: note: expanded from macro '__native_word'
477 | (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:477:39: note: expanded from macro '__native_word'
477 | (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:478:10: note: expanded from macro '__native_word'
478 | sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:478:38: note: expanded from macro '__native_word'
478 | sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:48: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
include/linux/compiler_types.h:466:13: note: expanded from macro '__unqual_scalar_typeof'
466 | _Generic((x), \
| ^
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
include/linux/compiler_types.h:473:15: note: expanded from macro '__unqual_scalar_typeof'
473 | default: (x)))
| ^
>> fs/eventpoll.c:805:39: error: no member named 'napi_id' in 'struct eventpoll'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:72: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
>> fs/eventpoll.c:805:15: error: initializing 'unsigned int' with an expression of incompatible type 'void'
805 | unsigned int napi_id = READ_ONCE(ep->napi_id);
| ^ ~~~~~~~~~~~~~~~~~~~~~~
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:477:10: note: expanded from macro '__native_word'
477 | (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:477:39: note: expanded from macro '__native_word'
477 | (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:478:10: note: expanded from macro '__native_word'
478 | sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:478:38: note: expanded from macro '__native_word'
478 | sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:48: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:510:22: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:498:23: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:490:9: note: expanded from macro '__compiletime_assert'
490 | if (!(condition)) \
| ^~~~~~~~~
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
include/linux/compiler_types.h:466:13: note: expanded from macro '__unqual_scalar_typeof'
466 | _Generic((x), \
| ^
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
include/linux/compiler_types.h:473:15: note: expanded from macro '__unqual_scalar_typeof'
473 | default: (x)))
| ^
>> fs/eventpoll.c:807:46: error: no member named 'prefer_busy_poll' in 'struct eventpoll'
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:72: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
>> fs/eventpoll.c:807:29: error: invalid operands to binary expression ('int' and 'void')
807 | if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
| ~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> fs/eventpoll.c:808:3: error: call to undeclared function 'napi_resume_irqs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
808 | napi_resume_irqs(napi_id);
| ^
13 warnings and 19 errors generated.
vim +805 fs/eventpoll.c
802
803 static void ep_free(struct eventpoll *ep)
804 {
> 805 unsigned int napi_id = READ_ONCE(ep->napi_id);
806
> 807 if (napi_id >= MIN_NAPI_ID && READ_ONCE(ep->prefer_busy_poll))
> 808 napi_resume_irqs(napi_id);
809 mutex_destroy(&ep->mtx);
810 free_uid(ep->user);
811 wakeup_source_unregister(ep->ws);
812 kfree(ep);
813 }
814
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