* Re: [PATCH next 2/5] minmax: Allow min()/max()/clamp() if the arguments have the same signedness.
[not found] <454f967d452548a9acfa7c0a0872507e@AcuMS.aculab.com>
@ 2023-07-25 14:56 ` kernel test robot
2023-07-26 9:47 ` David Laight
2023-07-25 15:58 ` kernel test robot
1 sibling, 1 reply; 6+ messages in thread
From: kernel test robot @ 2023-07-25 14:56 UTC (permalink / raw)
To: David Laight, linux-kernel@vger.kernel.org,
'Andy Shevchenko', 'Andrew Morton',
Matthew Wilcox (Oracle), Christoph Hellwig, Jason A. Donenfeld
Cc: llvm, oe-kbuild-all, Linux Memory Management List
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-allyesconfig (https://download.01.org/0day-ci/archive/20230725/202307252241.W1SwUDKu-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce: (https://download.01.org/0day-ci/archive/20230725/202307252241.W1SwUDKu-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/202307252241.W1SwUDKu-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from init/calibrate.c:8:
>> include/linux/jiffies.h:427:28: error: implicit declaration of function 'static_assert' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
return jiffies_to_clock_t(max(0L, delta));
^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(max, x, y)
^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
__cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
static_assert(__types_ok(x, y), \
^
In file included from init/calibrate.c:8:
include/linux/jiffies.h:432:26: error: implicit declaration of function 'static_assert' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
return jiffies_to_msecs(max(0L, delta));
^
include/linux/minmax.h:69:19: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(max, x, y)
^
include/linux/minmax.h:36:3: note: expanded from macro '__careful_cmp'
__cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y)))
^
include/linux/minmax.h:29:3: note: expanded from macro '__cmp_once'
static_assert(__types_ok(x, y), \
^
2 errors generated.
--
In file included from kernel/workqueue.c:39:
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]
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]
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'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from kernel/workqueue.c:39:
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]
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'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from kernel/workqueue.c:39:
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]
__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]
__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]
__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]
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]
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]
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]
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]
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]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> kernel/workqueue.c:4579:9: error: static_assert expression is not an integral constant expression
return clamp_val(max_active, 1, lim);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:171:32: note: expanded from macro 'clamp_val'
#define clamp_val(val, lo, hi) clamp_t(typeof(val), val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:158:36: note: expanded from macro 'clamp_t'
#define clamp_t(type, val, lo, hi) __careful_clamp((type)(val), (type)(lo), (type)(hi))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
12 warnings and 1 error generated.
--
In file included from mm/mm_init.c:17:
In file included from include/linux/memblock.h:13:
In file included from arch/um/include/asm/dma.h:5:
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]
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]
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'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from mm/mm_init.c:17:
In file included from include/linux/memblock.h:13:
In file included from arch/um/include/asm/dma.h:5:
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]
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'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from mm/mm_init.c:17:
In file included from include/linux/memblock.h:13:
In file included from arch/um/include/asm/dma.h:5:
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]
__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]
__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]
__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]
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]
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]
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]
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]
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]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> mm/mm_init.c:908:14: error: static_assert expression is not an integral constant expression
start_pfn = clamp(start_pfn, zone_start_pfn, zone_end_pfn);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:123:28: note: expanded from macro 'clamp'
#define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
mm/mm_init.c:909:12: error: static_assert expression is not an integral constant expression
end_pfn = clamp(end_pfn, zone_start_pfn, zone_end_pfn);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:123:28: note: expanded from macro 'clamp'
#define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
mm/mm_init.c:1145:15: error: static_assert expression is not an integral constant expression
start_pfn = clamp(start_pfn, range_start_pfn, range_end_pfn);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:123:28: note: expanded from macro 'clamp'
#define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
mm/mm_init.c:1146:13: error: static_assert expression is not an integral constant expression
end_pfn = clamp(end_pfn, range_start_pfn, range_end_pfn);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:123:28: note: expanded from macro 'clamp'
#define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
mm/mm_init.c:1189:16: error: static_assert expression is not an integral constant expression
start_pfn = clamp(memblock_region_memory_base_pfn(r),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:123:28: note: expanded from macro 'clamp'
#define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
mm/mm_init.c:1191:14: error: static_assert expression is not an integral constant expression
end_pfn = clamp(memblock_region_memory_end_pfn(r),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:123:28: note: expanded from macro 'clamp'
#define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
--
In file included from mm/page_alloc.c:20:
In file included from include/linux/highmem.h:12:
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]
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]
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'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from mm/page_alloc.c:20:
In file included from include/linux/highmem.h:12:
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]
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'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from mm/page_alloc.c:20:
In file included from include/linux/highmem.h:12:
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]
__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]
__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]
__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]
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]
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]
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]
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]
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]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> mm/page_alloc.c:2415:10: error: static_assert expression is not an integral constant expression
batch = clamp(batch, min_nr_free, max_nr_free);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:123:28: note: expanded from macro 'clamp'
#define clamp(val, lo, hi) __careful_clamp(val, lo, hi)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:54:3: note: expanded from macro '__careful_clamp'
__clamp_once(val, lo, hi, __UNIQUE_ID(__val), \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:17: note: expanded from macro '__clamp_once'
static_assert(!__is_constexpr((lo) > (hi)) || (lo) <= (hi), \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
12 warnings and 1 error generated.
..
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
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH next 2/5] minmax: Allow min()/max()/clamp() if the arguments have the same signedness.
[not found] <454f967d452548a9acfa7c0a0872507e@AcuMS.aculab.com>
2023-07-25 14:56 ` [PATCH next 2/5] minmax: Allow min()/max()/clamp() if the arguments have the same signedness kernel test robot
@ 2023-07-25 15:58 ` kernel test robot
2023-07-26 8:30 ` David Laight
1 sibling, 1 reply; 6+ messages in thread
From: kernel test robot @ 2023-07-25 15:58 UTC (permalink / raw)
To: David Laight, linux-kernel@vger.kernel.org,
'Andy Shevchenko', 'Andrew Morton',
Matthew Wilcox (Oracle), Christoph Hellwig, Jason A. Donenfeld
Cc: llvm, oe-kbuild-all, Linux Memory Management List
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
^ permalink raw reply [flat|nested] 6+ messages in thread