[hch-misc:set_fs-removal 85/85] arch/x86/include/asm/processor.h:882:23: error: initializer element is not constant

[hch-misc:set_fs-removal 85/85] arch/x86/include/asm/processor.h:882:23: error: initializer element is not constant

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 6041 bytes --]

tree:   git://git.infradead.org/users/hch/misc.git set_fs-removal
head:   153bec971d1618bc5abb582c90a6de920fe00e59
commit: 153bec971d1618bc5abb582c90a6de920fe00e59 [85/85] x86: remove address space overrides using set_fs()
config: x86_64-randconfig-r036-20200609 (attached as .config)
compiler: gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010
reproduce (this is a W=1 build):
        git checkout 153bec971d1618bc5abb582c90a6de920fe00e59
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from arch/x86/include/asm/cpufeature.h:5:0,
from arch/x86/include/asm/thread_info.h:53,
from include/linux/thread_info.h:38,
from arch/x86/include/asm/preempt.h:7,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:51,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:6,
from arch/x86/mm/init.c:1:
>> arch/x86/include/asm/processor.h:882:23: error: initializer element is not constant
#define TASK_SIZE_MAX ((1UL << __VIRTUAL_MASK_SHIFT) - PAGE_SIZE)
^
>> arch/x86/mm/init.c:38:37: note: in expansion of macro 'TASK_SIZE_MAX'
const unsigned long task_size_max = TASK_SIZE_MAX;
^
arch/x86/mm/init.c:83:6: warning: no previous prototype for 'x86_has_pat_wp' [-Wmissing-prototypes]
bool x86_has_pat_wp(void)
^
arch/x86/mm/init.c:88:22: warning: no previous prototype for 'pgprot2cachemode' [-Wmissing-prototypes]
enum page_cache_mode pgprot2cachemode(pgprot_t pgprot)
^
--
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c: In function 'atomisp_do_compat_ioctl':
>> drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:1009:11: error: implicit declaration of function 'get_fs' [-Werror=implicit-function-declaration]
old_fs = get_fs();
^
>> drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:1009:9: error: incompatible types when assigning to type 'mm_segment_t {aka struct <anonymous>}' from type 'int'
old_fs = get_fs();
^
>> drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:1010:2: error: implicit declaration of function 'set_fs' [-Werror=implicit-function-declaration]
set_fs(KERNEL_DS);
^
>> drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:1010:9: error: 'KERNEL_DS' undeclared (first use in this function)
set_fs(KERNEL_DS);
^
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:1010:9: note: each undeclared identifier is reported only once for each function it appears in
cc1: some warnings being treated as errors

vim +882 arch/x86/include/asm/processor.h

2f66dcc933f012 include/asm-x86/processor.h      Glauber de Oliveira Costa 2008-01-30  862  
2f66dcc933f012 include/asm-x86/processor.h      Glauber de Oliveira Costa 2008-01-30  863  #else
2f66dcc933f012 include/asm-x86/processor.h      Glauber de Oliveira Costa 2008-01-30  864  /*
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  865   * User space process size.  This is the first address outside the user range.
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  866   * There are a few constraints that determine this:
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  867   *
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  868   * On Intel CPUs, if a SYSCALL instruction is at the highest canonical
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  869   * address, then that syscall will enter the kernel with a
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  870   * non-canonical return address, and SYSRET will explode dangerously.
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  871   * We avoid this particular problem by preventing anything executable
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  872   * from being mapped at the maximum canonical address.
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  873   *
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  874   * On AMD CPUs in the Ryzen family, there's a nasty bug in which the
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  875   * CPUs malfunction if they execute code from the highest canonical page.
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  876   * They'll speculate right off the end of the canonical space, and
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  877   * bad things happen.  This is worked around in the same way as the
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  878   * Intel problem.
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  879   *
f55f0501cbf65e arch/x86/include/asm/processor.h Andy Lutomirski           2017-12-12  880   * With page table isolation enabled, we map the LDT in ... [stay tuned]
2f66dcc933f012 include/asm-x86/processor.h      Glauber de Oliveira Costa 2008-01-30  881   */
ee00f4a32a76ef arch/x86/include/asm/processor.h Kirill A. Shutemov        2017-07-17 @882  #define TASK_SIZE_MAX	((1UL << __VIRTUAL_MASK_SHIFT) - PAGE_SIZE)
2f66dcc933f012 include/asm-x86/processor.h      Glauber de Oliveira Costa 2008-01-30  883  

:::::: The code@line 882 was first introduced by commit
:::::: ee00f4a32a76ef631394f31d5b6028d50462b357 x86/mm: Allow userspace have mappings above 47-bit

:::::: TO: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
:::::: CC: Ingo Molnar <mingo@kernel.org>

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

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 38653 bytes --]