[PATCH v8 07/20] powerpc/mm: add helpers to get/set mm.context->pte_frag
kbuild test robot
lkp at intel.com
Fri Nov 30 05:05:21 AEDT 2018
Hi Christophe,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on powerpc/next]
[also build test WARNING on v4.20-rc4]
[cannot apply to next-20181129]
[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/Christophe-Leroy/powerpc-book3s32-Remove-CONFIG_BOOKE-dependent-code/20181129-210058
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allmodconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=powerpc
All warnings (new ones prefixed by >>):
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
from arch/powerpc/include/asm/book3s/64/mmu.h:39,
from arch/powerpc/include/asm/mmu.h:328,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/hw_irq.h:64,
from arch/powerpc/include/asm/irqflags.h:12,
from include/linux/irqflags.h:16,
from include/linux/spinlock.h:54,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:6,
from include/linux/slab.h:15,
from drivers/usb/gadget/function/f_acm.c:14:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
#define PTE_FRAG_NR __pte_frag_nr
^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
#if PTE_FRAG_NR != 1
^~~~~~~~~~~
--
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
from arch/powerpc/include/asm/book3s/64/mmu.h:39,
from arch/powerpc/include/asm/mmu.h:328,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/current.h:16,
from include/linux/sched.h:12,
from drivers/usb/gadget/function/u_serial.c:18:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
#define PTE_FRAG_NR __pte_frag_nr
^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
#if PTE_FRAG_NR != 1
^~~~~~~~~~~
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
from arch/powerpc/include/asm/book3s/64/mmu.h:39,
from arch/powerpc/include/asm/mmu.h:328,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/current.h:16,
from include/linux/sched.h:12,
from drivers/usb/gadget/function/u_serial.c:18:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
#define PTE_FRAG_NR __pte_frag_nr
^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
#if PTE_FRAG_NR != 1
^~~~~~~~~~~
--
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
from arch/powerpc/include/asm/book3s/64/mmu.h:39,
from arch/powerpc/include/asm/mmu.h:328,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/current.h:16,
from include/linux/sched.h:12,
from drivers/staging/rtlwifi/rtl8822be/../wifi.h:20,
from drivers/staging/rtlwifi/rtl8822be/trx.c:15:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
#define PTE_FRAG_NR __pte_frag_nr
^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
#if PTE_FRAG_NR != 1
^~~~~~~~~~~
In file included from drivers/staging/rtlwifi/rtl8822be/trx.c:26:0:
include/linux/vermagic.h:29:10: fatal error: generated/randomize_layout_hash.h: No such file or directory
#include <generated/randomize_layout_hash.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
--
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
from arch/powerpc/include/asm/book3s/64/mmu.h:39,
from arch/powerpc/include/asm/mmu.h:328,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/smp.h:28,
from include/linux/smp.h:68,
from include/linux/percpu.h:7,
from arch/powerpc/include/asm/time.h:18,
from arch/powerpc/include/asm/delay.h:6,
from include/linux/delay.h:26,
from sound/aoa/codecs/onyx.c:34:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
#define PTE_FRAG_NR __pte_frag_nr
^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
#if PTE_FRAG_NR != 1
^~~~~~~~~~~
sound/aoa/codecs/onyx.c: In function 'onyx_snd_single_bit_get':
sound/aoa/codecs/onyx.c:380:37: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
^~~~~~~~~~~~
--
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:24:0,
from arch/powerpc/include/asm/book3s/64/mmu.h:39,
from arch/powerpc/include/asm/mmu.h:328,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/smp.h:28,
from include/linux/smp.h:68,
from include/linux/percpu.h:7,
from arch/powerpc/include/asm/time.h:18,
from arch/powerpc/include/asm/delay.h:6,
from include/linux/delay.h:26,
from drivers/scsi/esas2r/esas2r.h:45,
from drivers/scsi/esas2r/esas2r_ioctl.c:44:
>> arch/powerpc/include/asm/book3s/64/pgtable.h:219:21: warning: "__pte_frag_nr" is not defined, evaluates to 0 [-Wundef]
#define PTE_FRAG_NR __pte_frag_nr
^
>> arch/powerpc/include/asm/pgtable.h:123:5: note: in expansion of macro 'PTE_FRAG_NR'
#if PTE_FRAG_NR != 1
^~~~~~~~~~~
drivers/scsi/esas2r/esas2r_ioctl.c: In function 'esas2r_write_vda':
drivers/scsi/esas2r/esas2r_ioctl.c:1910:19: warning: 'dma_addr' may be used uninitialized in this function [-Wmaybe-uninitialized]
a->ppvda_buffer = dma_addr;
~~~~~~~~~~~~~~~~^~~~~~~~~~
vim +/__pte_frag_nr +219 arch/powerpc/include/asm/book3s/64/pgtable.h
5ed7ecd0 Aneesh Kumar K.V 2016-04-29 217
5ed7ecd0 Aneesh Kumar K.V 2016-04-29 218 extern unsigned long __pte_frag_nr;
5ed7ecd0 Aneesh Kumar K.V 2016-04-29 @219 #define PTE_FRAG_NR __pte_frag_nr
5ed7ecd0 Aneesh Kumar K.V 2016-04-29 220 extern unsigned long __pte_frag_size_shift;
5ed7ecd0 Aneesh Kumar K.V 2016-04-29 221 #define PTE_FRAG_SIZE_SHIFT __pte_frag_size_shift
5ed7ecd0 Aneesh Kumar K.V 2016-04-29 222 #define PTE_FRAG_SIZE (1UL << PTE_FRAG_SIZE_SHIFT)
dd1842a2 Aneesh Kumar K.V 2016-04-29 223
:::::: The code at line 219 was first introduced by commit
:::::: 5ed7ecd08a0807d6d616c3d958402f9c723bb048 powerpc/mm: pte_frag abstraction
:::::: TO: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>
:::::: CC: Michael Ellerman <mpe at ellerman.id.au>
---
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