Re: [PATCHv2 14/14] treewide: Decouple cacheflush.h and set_memory.h

kbuild test robot
2017-03-04T22:57:54Z

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Hi Laura,

[auto build test ERROR on linus/master]
[also build test ERROR on next-20170303]
[cannot apply to tip/x86/core drm/drm-next v4.10]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Laura-Abbott/set_memory_-functions-header-refactor/20170305-062939
config: i386-randconfig-x014-201710 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

arch/x86/kernel/machine_kexec_32.c: In function 'machine_kexec_prepare':
>> arch/x86/kernel/machine_kexec_32.c:160:2: error: implicit declaration of function 'set_pages_x' [-Werror=implicit-function-declaration]
set_pages_x(image->control_code_page, 1);
^~~~~~~~~~~
arch/x86/kernel/machine_kexec_32.c: In function 'machine_kexec_cleanup':
>> arch/x86/kernel/machine_kexec_32.c:174:2: error: implicit declaration of function 'set_pages_nx' [-Werror=implicit-function-declaration]
set_pages_nx(image->control_code_page, 1);
^~~~~~~~~~~~
cc1: some warnings being treated as errors
--
arch/x86/mm/init_32.c: In function 'set_kernel_text_rw':
>> arch/x86/mm/init_32.c:880:2: error: implicit declaration of function 'set_pages_rw' [-Werror=implicit-function-declaration]
set_pages_rw(virt_to_page(start), size >> PAGE_SHIFT);
^~~~~~~~~~~~
arch/x86/mm/init_32.c: In function 'set_kernel_text_ro':
>> arch/x86/mm/init_32.c:894:2: error: implicit declaration of function 'set_pages_ro' [-Werror=implicit-function-declaration]
set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
^~~~~~~~~~~~
arch/x86/mm/init_32.c: In function 'mark_nxdata_nx':
>> arch/x86/mm/init_32.c:911:2: error: implicit declaration of function 'set_pages_nx' [-Werror=implicit-function-declaration]
set_pages_nx(virt_to_page(start), size >> PAGE_SHIFT);
^~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/set_pages_x +160 arch/x86/kernel/machine_kexec_32.c

9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 154 * - Setup page tables
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 155 */
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 156 int machine_kexec_prepare(struct kimage *image)
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 157 {
9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 158 int error;
9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 159
3ab83521 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-07-25 @160 set_pages_x(image->control_code_page, 1);
9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 161 error = machine_kexec_alloc_page_tables(image);
9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 162 if (error)
9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 163 return error;
9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 164 machine_kexec_prepare_page_tables(image);
9868ee63 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 165 return 0;
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 166 }
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 167
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 168 /*
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 169 * Undo anything leftover by machine_kexec_prepare
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 170 * when an image is freed.
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 171 */
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 172 void machine_kexec_cleanup(struct kimage *image)
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 173 {
3ab83521 arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-07-25 @174 set_pages_nx(image->control_code_page, 1);
92be3d6b arch/x86/kernel/machine_kexec_32.c Huang Ying 2008-10-31 175 machine_kexec_free_page_tables(image);
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 176 }
5033cba0 arch/i386/kernel/machine_kexec.c Eric W. Biederman 2005-06-25 177

:::::: The code at line 160 was first introduced by commit
:::::: 3ab83521378268044a448113c6aa9a9e245f4d2f kexec jump

:::::: TO: Huang Ying <ying.huang@intel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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