On Mon, Mar 24, 2014 at 04:00:32PM -0500, Christoph Lameter wrote:
> On Sun, 23 Mar 2014, kbuild test robot wrote:
>
> > >> mm/mprotect.c:46:14: sparse: context imbalance in 'lock_pte_protection' - different lock contexts for basic block
> > >> arch/x86/include/asm/paravirt.h:699:9: sparse: context imbalance in 'change_pte_range' - unexpected unlock
> > --
> > >> fs/ntfs/super.c:3100:1: sparse: directive in argument list
> > >> fs/ntfs/super.c:3102:1: sparse: directive in argument list
> > >> fs/ntfs/super.c:3104:1: sparse: directive in argument list
> > >> fs/ntfs/super.c:3105:1: sparse: directive in argument list
> > >> fs/ntfs/super.c:3107:1: sparse: directive in argument list
> > >> fs/ntfs/super.c:3108:1: sparse: directive in argument list
> > >> fs/ntfs/super.c:3110:1: sparse: directive in argument list
>
> Looked through these and I am a bit puzzled how they related to raw cpu
> ops patch.
Ah yes, this is false positive and is because the compilation on the
previous commit failed, so the sparse errors in fs/ntfs/super.c show
up as "new" ones in commit 6a9ad050.
wfg@bee ~/linux% git checkout 6a9ad050c521ac607a30a691042f2a5d24109b07~
...
HEAD is now at 1b1dc6d... arm: move arm_dma_limit to setup_dma_zone
wfg@bee ~/linux/obj-compiletest% make C=1 fs/ntfs/super.o
...
HOSTLD scripts/mod/modpost
In file included from /c/wfg/linux/include/linux/mm.h:897:0,
from /c/wfg/linux/include/linux/suspend.h:8,
from /c/wfg/linux/arch/x86/kernel/asm-offsets.c:12:
/c/wfg/linux/include/linux/vmstat.h: In function ‘__count_vm_event’:
/c/wfg/linux/include/linux/vmstat.h:36:2: error: implicit declaration of function ‘raw_cpu_inc’ [-Werror=implicit-function-declaration]
/c/wfg/linux/include/linux/vmstat.h: In function ‘__count_vm_events’:
/c/wfg/linux/include/linux/vmstat.h:46:2: error: implicit declaration of function ‘raw_cpu_add’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1
make[1]: *** [prepare0] Error 2
make: *** [sub-make] Error 2
make: Leaving directory `/c/wfg/linux'
Thanks,
Fengguang
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