linux-kernel - [rcu:dev.2016.05.17a 42/45] include/linux/irqflags.h:79:3: error: implicit declaration of function 'arch_irqs_disabled

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Fri, 20 May 2016 19:35:40 +0800
From:	kbuild test robot <fengguang.wu@...el.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [rcu:dev.2016.05.17a 42/45] include/linux/irqflags.h:79:3: error:
 implicit declaration of function 'arch_irqs_disabled_flags'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2016.05.17a
head:   ac3c30e8911d244986e3bb2c56f7d3ca84405d98
commit: 31862f2d44ddc7144a12656cf2a9ec60c5d200df [42/45] rcu: Make call_rcu_tasks() tolerate first call with irqs disabled
config: um-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        git checkout 31862f2d44ddc7144a12656cf2a9ec60c5d200df
        # save the attached .config to linux build tree
        make ARCH=um 

Note: the rcu/dev.2016.05.17a HEAD ac3c30e8911d244986e3bb2c56f7d3ca84405d98 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   kernel/rcu/update.c:828:13: sparse: incorrect type in argument 1 (different modifiers)
   kernel/rcu/update.c:828:13:    expected int ( *threadfn )( ... )
   kernel/rcu/update.c:828:13:    got int ( static [toplevel] [noreturn] *<noident> )( ... )
   kernel/rcu/update.c:572:28: sparse: undefined identifier 'arch_irqs_disabled_flags'
   In file included from include/linux/spinlock.h:53:0,
                    from kernel/rcu/update.c:36:
   kernel/rcu/update.c: In function 'call_rcu_tasks':
>> include/linux/irqflags.h:79:3: error: implicit declaration of function 'arch_irqs_disabled_flags' [-Werror=implicit-function-declaration]
      arch_irqs_disabled_flags(flags); \
      ^
   include/linux/irqflags.h:149:36: note: in expansion of macro 'raw_irqs_disabled_flags'
    #define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags)
                                       ^~~~~~~~~~~~~~~~~~~~~~~
   kernel/rcu/update.c:572:21: note: in expansion of macro 'irqs_disabled_flags'
         (!havetask && !irqs_disabled_flags(flags))) {
                        ^~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/arch_irqs_disabled_flags +79 include/linux/irqflags.h

df9ee292 David Howells 2010-10-07  73  		typecheck(unsigned long, flags);	\
df9ee292 David Howells 2010-10-07  74  		flags = arch_local_save_flags();	\
df9ee292 David Howells 2010-10-07  75  	} while (0)
df9ee292 David Howells 2010-10-07  76  #define raw_irqs_disabled_flags(flags)			\
df9ee292 David Howells 2010-10-07  77  	({						\
df9ee292 David Howells 2010-10-07  78  		typecheck(unsigned long, flags);	\
df9ee292 David Howells 2010-10-07 @79  		arch_irqs_disabled_flags(flags);	\
df9ee292 David Howells 2010-10-07  80  	})
df9ee292 David Howells 2010-10-07  81  #define raw_irqs_disabled()		(arch_irqs_disabled())
df9ee292 David Howells 2010-10-07  82  #define raw_safe_halt()			arch_safe_halt()

:::::: The code at line 79 was first introduced by commit
:::::: df9ee29270c11dba7d0fe0b83ce47a4d8e8d2101 Fix IRQ flag handling naming

:::::: TO: David Howells <dhowells@...hat.com>
:::::: CC: David Howells <dhowells@...hat.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Download attachment ".config.gz" of type "application/octet-stream" (17717 bytes)