From: kernel test robot <lkp@intel.com>
To: David Laight <David.Laight@aculab.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
'Andy Shevchenko' <andriy.shevchenko@linux.intel.com>,
'Andrew Morton' <akpm@linux-foundation.org>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
Christoph Hellwig <hch@infradead.org>,
"Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [PATCH next 2/5] minmax: Allow min()/max()/clamp() if the arguments have the same signedness.
Date: Tue, 25 Jul 2023 23:58:22 +0800 [thread overview]
Message-ID: <202307252359.Is4T2MXC-lkp@intel.com> (raw)
In-Reply-To: <454f967d452548a9acfa7c0a0872507e@AcuMS.aculab.com>
Hi David,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v6.5-rc3 next-20230725]
[cannot apply to next-20230725 hch-configfs/for-next]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/David-Laight/minmax-Add-min_unsigned-a-b-and-max_unsigned-a-b/20230725-180332
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/454f967d452548a9acfa7c0a0872507e%40AcuMS.aculab.com
patch subject: [PATCH next 2/5] minmax: Allow min()/max()/clamp() if the arguments have the same signedness.
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20230725/202307252359.Is4T2MXC-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230725/202307252359.Is4T2MXC-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/202307252359.Is4T2MXC-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from init/calibrate.c:8:
>> include/linux/jiffies.h:427:28: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
427 | return jiffies_to_clock_t(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
In file included from init/calibrate.c:8:
include/linux/jiffies.h:432:26: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
432 | return jiffies_to_msecs(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
2 errors generated.
--
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:7:
In file included from include/linux/ktime.h:25:
>> include/linux/jiffies.h:427:28: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
427 | return jiffies_to_clock_t(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:7:
In file included from include/linux/ktime.h:25:
include/linux/jiffies.h:432:26: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
432 | return jiffies_to_msecs(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:10:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:97:11: warning: array index 3 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
97 | return (set->sig[3] | set->sig[2] |
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:10:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:97:25: warning: array index 2 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
97 | return (set->sig[3] | set->sig[2] |
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:10:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:4: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
98 | set->sig[1] | set->sig[0]) == 0;
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:10:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:100:11: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
100 | return (set->sig[1] | set->sig[0]) == 0;
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:10:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:113:11: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
113 | return (set1->sig[3] == set2->sig[3]) &&
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:10:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:113:27: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
113 | return (set1->sig[3] == set2->sig[3]) &&
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from fs/signalfd.c:22:
In file included from include/linux/poll.h:10:
--
In file included from kernel/irq/spurious.c:8:
>> include/linux/jiffies.h:427:28: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
427 | return jiffies_to_clock_t(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
In file included from kernel/irq/spurious.c:8:
include/linux/jiffies.h:432:26: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
432 | return jiffies_to_msecs(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
In file included from kernel/irq/spurious.c:9:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from kernel/irq/spurious.c:9:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from kernel/irq/spurious.c:9:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
692 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
700 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
708 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
717 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
726 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
735 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
12 warnings and 2 errors generated.
--
In file included from kernel/time/alarmtimer.c:16:
In file included from include/linux/hrtimer.h:15:
In file included from include/linux/hrtimer_defs.h:5:
In file included from include/linux/ktime.h:25:
>> include/linux/jiffies.h:427:28: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
427 | return jiffies_to_clock_t(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
In file included from kernel/time/alarmtimer.c:16:
In file included from include/linux/hrtimer.h:15:
In file included from include/linux/hrtimer_defs.h:5:
In file included from include/linux/ktime.h:25:
include/linux/jiffies.h:432:26: error: call to undeclared function 'static_assert'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
432 | return jiffies_to_msecs(max(0L, delta));
| ^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
69 | #define max(x, y) __careful_cmp(max, x, y)
| ^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
36 | __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
| ^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
29 | static_assert(__types_ok(x, y), \
| ^
In file included from kernel/time/alarmtimer.c:18:
In file included from include/linux/rtc.h:17:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from kernel/time/alarmtimer.c:18:
In file included from include/linux/rtc.h:17:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from kernel/time/alarmtimer.c:18:
In file included from include/linux/rtc.h:17:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
692 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
700 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
708 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
717 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
726 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
735 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
In file included from kernel/time/alarmtimer.c:18:
In file included from include/linux/rtc.h:38:
In file included from include/linux/seq_file.h:12:
In file included from include/linux/fs.h:33:
vim +/static_assert +427 include/linux/jiffies.h
ae60d6a0e3a919 Nicholas Mc Guire 2015-05-28 420
9ca308506062fc Baolin Wang 2015-07-29 421 extern unsigned long timespec64_to_jiffies(const struct timespec64 *value);
9ca308506062fc Baolin Wang 2015-07-29 422 extern void jiffies_to_timespec64(const unsigned long jiffies,
9ca308506062fc Baolin Wang 2015-07-29 423 struct timespec64 *value);
cbbc719fccdb8c hank 2011-09-20 424 extern clock_t jiffies_to_clock_t(unsigned long x);
a399a8053164ec Eric Dumazet 2012-08-08 425 static inline clock_t jiffies_delta_to_clock_t(long delta)
a399a8053164ec Eric Dumazet 2012-08-08 426 {
a399a8053164ec Eric Dumazet 2012-08-08 @427 return jiffies_to_clock_t(max(0L, delta));
a399a8053164ec Eric Dumazet 2012-08-08 428 }
a399a8053164ec Eric Dumazet 2012-08-08 429
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2023-07-25 16:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <454f967d452548a9acfa7c0a0872507e@AcuMS.aculab.com>
2023-07-25 14:14 ` [PATCH next 2/5] minmax: Allow min()/max()/clamp() if the arguments have the same signedness kernel test robot
2023-07-25 14:56 ` kernel test robot
2023-07-26 9:47 ` David Laight
2023-07-25 15:58 ` kernel test robot [this message]
2023-07-26 8:30 ` David Laight
2023-07-26 16:20 ` 'Andy Shevchenko'
2023-07-27 14:01 ` David Laight
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