linux-kernel - Re: [PATCH 13/20] powerpc: Use generic compat_siginfo

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Date:	Sat, 17 Oct 2015 07:00:55 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Amanieu d'Antras <amanieu@...il.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, x86@...nel.org,
	Brian Gerst <brgerst@...il.com>,
	Amanieu d'Antras <amanieu@...il.com>
Subject: Re: [PATCH 13/20] powerpc: Use generic compat_siginfo_t

Hi Amanieu,

[auto build test ERROR on arm64/for-next/core -- if it's inappropriate base, please suggest rules for selecting the more suitable base]

url:    https://github.com/0day-ci/linux/commits/Amanieu-d-Antras/Fix-handling-of-compat_siginfo_t/20151015-051137
config: powerpc-defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

Note: the linux-review/Amanieu-d-Antras/Fix-handling-of-compat_siginfo_t/20151015-051137 HEAD 041b7d538bec8eec85a60b4a808bbe3959fcd8c3 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   arch/powerpc/kernel/signal_32.c: In function 'copy_siginfo_to_user32':
>> arch/powerpc/kernel/signal_32.c:930:11: error: 'SI_PAD_SIZE32' undeclared (first use in this function)
              SI_PAD_SIZE32);
              ^
   arch/powerpc/kernel/signal_32.c:930:11: note: each undeclared identifier is reported only once for each function it appears in
   arch/powerpc/kernel/signal_32.c: In function 'copy_siginfo_from_user32':
   arch/powerpc/kernel/signal_32.c:976:29: error: 'SI_PAD_SIZE32' undeclared (first use in this function)
          from->_sifields._pad, SI_PAD_SIZE32))
                                ^

vim +/SI_PAD_SIZE32 +930 arch/powerpc/kernel/signal_32.c

^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  924  	 */
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  925  	err = __put_user(s->si_signo, &d->si_signo);
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  926  	err |= __put_user(s->si_errno, &d->si_errno);
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  927  	err |= __put_user((short)s->si_code, &d->si_code);
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  928  	if (s->si_code < 0)
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  929  		err |= __copy_to_user(&d->_sifields._pad, &s->_sifields._pad,
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16 @930  				      SI_PAD_SIZE32);
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  931  	else switch(s->si_code >> 16) {
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  932  	case __SI_CHLD >> 16:
^1da177e arch/ppc64/kernel/signal32.c Linus Torvalds 2005-04-16  933  		err |= __put_user(s->si_pid, &d->si_pid);

:::::: The code at line 930 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

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