linux-hardening - Re: [PATCH 1/4] arm: ptdump: Rename CONFIG_DEBUG_WX to CONFIG_ARM_DEBUG

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Message-ID: <202401101442.H0AGuwzu-lkp@intel.com>
Date: Wed, 10 Jan 2024 14:34:54 +0800
From: kernel test robot <lkp@...el.com>
To: Christophe Leroy <christophe.leroy@...roup.eu>,
	linux-hardening@...r.kernel.org,
	Russell King <linux@...linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...nel.org>,
	"Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>,
	Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <keescook@...omium.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/4] arm: ptdump: Rename CONFIG_DEBUG_WX to
 CONFIG_ARM_DEBUG_WX

Hi Christophe,

kernel test robot noticed the following build errors:

[auto build test ERROR on powerpc/next]
[also build test ERROR on powerpc/fixes s390/features tip/x86/mm linus/master v6.7 next-20240109]
[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/Christophe-Leroy/arm-ptdump-Rename-CONFIG_DEBUG_WX-to-CONFIG_ARM_DEBUG_WX/20240109-201723
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link:    https://lore.kernel.org/r/d651269a681150f9bdca8103434fb3f4b509f784.1704800524.git.christophe.leroy%40csgroup.eu
patch subject: [PATCH 1/4] arm: ptdump: Rename CONFIG_DEBUG_WX to CONFIG_ARM_DEBUG_WX
config: arm-randconfig-003-20240110 (https://download.01.org/0day-ci/archive/20240110/202401101442.H0AGuwzu-lkp@intel.com/config)
compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project 7e186d366d6c7def0543acc255931f617e76dff0)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240110/202401101442.H0AGuwzu-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401101442.H0AGuwzu-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/arm/mm/init.c:461:2: error: call to undeclared function 'debug_checkwx'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     461 |         debug_checkwx();
         |         ^
   1 error generated.


vim +/debug_checkwx +461 arch/arm/mm/init.c

08925c2f124f1b Laura Abbott 2015-11-30  457  
80d6b0c2eed2a5 Kees Cook    2014-04-03  458  void mark_rodata_ro(void)
80d6b0c2eed2a5 Kees Cook    2014-04-03  459  {
08925c2f124f1b Laura Abbott 2015-11-30  460  	stop_machine(__mark_rodata_ro, NULL, NULL);
a8e53c151fe7ac Jinbum Park  2017-12-12 @461  	debug_checkwx();
80d6b0c2eed2a5 Kees Cook    2014-04-03  462  }
80d6b0c2eed2a5 Kees Cook    2014-04-03  463  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki